Research Report

Question: You are a rigorous financial research analyst. Ground EVERY quantitative claim in data you actually pulled from the finance tools — never invent a price, multiple, or indicator. Answer the REQUEST below by:

1. Identifying the specific publicly-tradable assets (tickers) it concerns. When the request is open-ended (e.g. "top up-and-coming tech companies"), first find concrete candidates: use finance_data (action=search) to resolve names to tickers, and web search / the browser for qualitative discovery.
2. For EVERY ticker you discuss, pull real data with the finance tools:

• finance_data action=analyze — LIVE price, % returns, 52-week range position, and the indicator panel (RSI-14, MACD, SMA 50/200, VWMA-20/67, trend). Batch multiple tickers in one call.
• finance_data action=fundamentals — market cap, P/E & forward P/E, PEG, margins, revenue growth, analyst target & rating (use for valuation).
• finance_data action=quote source=pyth — fastest realtime spot price (esp. crypto) with a confidence band, when you need the very latest tick.
• finance_data action=liquidation — the VWMA-67 'true price' and leverage liquidation levels (great for crypto/timing context).
• finance_news — recent catalysts/sentiment (macro + per-ticker headlines).
• finance_insider — corporate insider (SEC Form 4) and, with scope=congress, political trades, to see informed-money flow. If scope=congress returns a browser_fallback (the free API was gated), follow it: use the browser tool on the given capitoltrades.com URL(s) and read the rendered trades table.

3. Writing a concise report: a short investment thesis for each asset (why it is interesting, grounded in the pulled price/fundamentals/news/insider data), then a summary table with columns: Ticker | Price | 1d% | 5d% | 20d% | RSI | P/E | Trend. Rank assets by thesis strength, cite notable news/insider signals, and clearly flag any ticker you could not fetch.

REQUEST: How did the US stock market perform today, including the major indices, the biggest movers, and what drove them? Any interesting acquisitions or sales?

Date: 2026-10-31T14:33:27.883717269+00:00

Coverage window: 2026-10-31 – 2026-10-31

Rounds: 1

Status: PARTIAL

Objective check — 4 of 6 criteria met

The run produced work, but the objective below is not fully achieved. Each unmet criterion names what is still outstanding.

• MET — The report states whether US equity markets were open on 2026-10-31 and identifies the exact session date the data represents.
  • The report states: "US equity markets were closed on 2026-10-31 — it was a Saturday" and "The last completed session was Friday, 2026-10-30."
• MET — The report gives closing level and 1-day % change for the S&P 500, Nasdaq Composite, Dow Jones Industrial Average and Russell 2000, each with a source or tool call.
  • The Major Indices table lists S&P 500 7,580.07 / −1.82%, Nasdaq Composite 25,437.00 / −2.86%, Dow 51,770.31 / −1.09%, and Russell 2000 2,811.84 / −1.66%, with notes such as "tool quote (SPX) + AP/WSJ agree" and Dow "level from secondary aggregators only."
• NOT MET — The report names at least three individual stocks that were among the session's biggest gainers and three biggest losers, each with its % move and a stated catalyst.
  • The report says "no large-cap gainer with a verified percentage and catalyst was obtainable" and lists CHOW/ONEG/GDYN gainers with "Catalyst not established."
• MET — The report lists at least one macro driver (economic data release, Fed/Treasury-yields move, or VIX level) with the specific figure and date (2026-10-30..2026-10-31).
  • Under "Major Indices — 2026-10-30 Close" the report lists "CBOE VIX | 19.42 | +12.91%" with a specific date context.
• NOT MET — The report describes at least one acquisition, divestiture or stake sale announced between 2026-10-30 and 2026-10-31, naming acquirer, target and deal value, or explicitly states that none were announced in that window.
  • The report states "no US deal announced specifically on 2026-10-30 or 2026-10-31 could be verified with full terms" and says "that is not the same as a confirmed nil-activity day," while listing in-window deals only with missing terms such as "economics unknown" or "Value not disclosed."
• MET — Sector performance for the session is quantified (e.g. best- and worst-performing S&P sectors with % moves).
  • The report says "Energy was the only convincingly positive group (XLE +1.29% to +1.91% depending on source)" and "Information Technology was the worst (XLK −2.75%, with semis SMH −6.98%)."

Evidence: 125 claims · 66 sourced · 11 partial · 7 unsupported · 38 self-reported (no independent source) · 20 single-source

US Market Recap — as of Saturday, 2026-10-31

Executive Summary

US equity markets were closed on 2026-10-31 — it was a Saturday, so there is no "today's" session to report. The last completed session was Friday, 2026-10-30, and it was a tech-led risk-off rout that closed out the Nasdaq's worst month since March 2025: S&P 500 −1.82% to 7,580.07, Nasdaq Composite −2.86% to 25,437.00, Dow −1.09% to 51,770.31, Russell 2000 −1.66% to 2,811.84, VIX +12.9% to 19.42.

The driver was earnings, not macro: disappointing Q3 results from Alphabet, Intel and Amazon crystallised an AI-capex de-rating, with Intel −29% its worst day since 1974. The 10-year Treasury was flat at 4.93%, so this was not a rates shock. On M&A: no US transaction announced 2026-10-30 or 2026-10-31 could be verified with full terms. The largest US take-private in the broader window was ADT / Thrive Holdings, $15.3B enterprise value, $10.00/share, 45.6% premium — announced 2026-10-29, one day before the window.

Market-status evidence: the 2026-10-31-dated live page labels its index quotes "at last close" with breadth "at the Oct 30, 2026 close" (stocksetups.com/today), AP's report is headlined "How major US stock indexes fared Friday 10/30/2026" (apnews.com), and every instrument series pulled terminates at a 2026-10-30 bar with no 2026-10-31 bar.

Major Indices — 2026-10-30 Close

Intraday, the S&P traded down to 7,527.56 before closing at 7,580.07 — the VIX spiked as high as 23.93 off a 17.21 prior close and settled at 19.42, i.e. the panic was bought into the weekend.

Index ETF proxies (tool-derived, 2026-10-30 close):

Volume confirms distribution rather than drift: SPY traded 77.7M shares vs a 20-day average of 39.2M; QQQ 85.2M vs 39.2M — roughly double normal turnover. Breadth was ugly: 2,600 advancers vs 7,192 decliners, 439 new 52-week highs vs 1,124 new lows, and only 33% of stocks above their 50-day average (stocksetups.com/today, snippet-level).

Sectors: Energy was the only convincingly positive group (XLE +1.29% to +1.91% depending on source) alongside Staples; Information Technology was the worst (XLK −2.75%, with semis SMH −6.98%). All four defensive/real-asset sectors closed green and all four cyclical/tech-adjacent sectors closed red — a ~4pp best-to-worst spread, a rotation day rather than indiscriminate selling.

Biggest Movers — 2026-10-30

Honest gap: no large-cap gainer with a verified percentage and catalyst was obtainable. Every readable source on this session covered only the downside. Sector-level winners (XLE, XLP) are the only substantiated "up" side of the tape.

What Drove It

• Mega-cap earnings, not macro. WSJ's Oct. 30 live coverage: the Nasdaq fell 2.9% "following disappointing earnings from Alphabet, Intel and Amazon" (wsj.com). AP frames it as "worries that the frenzy around AI sent prices too high" (apnews.com). Barron's: "AI Selloff Goes From Bad to Worse in Market's Biggest Loss Since June." The mechanism has flipped: the market is now punishing AI capex as a margin drag rather than rewarding it.
• Volatility repricing: VIX +12.9% to 19.42. Sharp, but at the 27th percentile of its annual range — a de-risking, not a crisis.
• Not rates. The US 10-year yield was essentially unchanged at 4.933% (−0.08%), so the equity decline cannot be laid at the Treasury market's door.
• Oil and geopolitics: front-month Brent $117.64/bbl after a tanker transiting the Strait of Hormuz came under attack, per U.K. Maritime Trade Operations (WSJ, Oct. 30). WTI $102.91, +0.89%. This is the causal link behind Energy being the day's best sector.
• Crypto shock: a reported $6.3B Binance hack hit crypto sentiment the same day (single source, WSJ — medium confidence).
• Items dated 2026-10-31 that did NOT drive Friday: China's October PMIs (manufacturing 49.3, non-manufacturing 49.7, composite 49.7, published 01:30 UTC Saturday — after the US close), and a dense run of Iran/Hormuz headlines time-stamped 09:00–13:40 UTC Saturday. Both are forward risk for Monday 2026-11-02, not inputs to the 10-30 close.

Acquisitions & Sales

Bottom line: no US deal announced specifically on 2026-10-30 or 2026-10-31 could be verified with full terms (acquirer + target + value + per-share + premium). The fetched stockanalysis.com acquisitions tracker shows its most recent entry as Oct 23, 2026 — consistent with an empty window, but not proof of one (it covers public targets only and can lag a day).

Analysis

Friday 2026-10-30 was a concentrated growth de-rating wearing the costume of a broad selloff. The tell is the dispersion: NDX −3.46% and QQQ −3.47% against DIA −1.07% and IWM −1.65%, a ~2.4× gap that only mega-cap tech damage produces. The Dow's relative resilience, Energy's +1.3% to +1.9%, and a flat 10-year yield all argue the same thing — this was an equity-level repricing of AI capital spending, not a macro liquidation. The double-normal volume in SPY and QQQ says institutions repositioned rather than retail panicked, and the VIX closing at 19.42 after touching 23.93 says the move was absorbed.

For Monday 2026-11-02, the setup carries two live, dated risks that were not in Friday's price: China's PMIs printed in contraction (49.3/49.7) after the US close, and the Strait of Hormuz remains closed with Iranian negotiators in Doha — both supportive of Energy and adverse for cyclicals. On M&A, the actionable name is Ares Capital / MidCap Financial: it is the only in-window transaction with a real, US-listed acquirer and target and an issuer-sourced date, and its exchange ratio is the one figure that would convert it into a usable deal.

Risks & Open Questions

• Gainers are missing entirely. No large-cap gainer with a verified move and catalyst could be sourced. Any claim about individual winners on 10-30 beyond XLE/XLP is unsupported.
• Intel's magnitude is a range, not a number (−29% vs −30%), and its Q4 guidance ($15B–$16B, $0.25 EPS) comes from aggregators, not Intel's release.
• Alphabet's move is direction-only. WSJ names it among the disappointments; no percentage was obtainable from a consistent source.
• Dow level provenance. 51,770.31 comes from secondary aggregators; the −1.09% move is independently corroborated by AP and the DIA ETF.
• Sector figures carry a precision caveat. Two source sets disagree on the size of sector moves (XLE +1.29% vs +1.91%; XLK −2.75% vs Tech −3.97% on a cap-weighted basis). Ranking and direction are robust; decimals are not.
• Binance hack ($6.3B) is single-sourced and unconfirmed.
• M&A is an absence of evidence. No in-window deal was verified to the required standard; that is not the same as a confirmed nil-activity day.

Claims without independent support

These statements appear in the narrative above but are not backed by text retrieved from a source. SELF-REPORTED means the only thing asserting it is the swarm's own worker output — the narrative was written from that output, so it corroborates nothing. Treat all of these as unverified.

• [SELF-REPORTED] US equity markets were closed on 2026-10-31 — it was a Saturday, so there is no "today's" session to report.** The last completed session was Friday, 2026-10-30, and it was a tech-led risk-off rout that closed out the Nasdaq's worst month since March 2025: S&P 500 −1.82% to 7,580.07, Nasdaq Composite −2.86% to 25,437.00, Dow −1.09% to 51,770.31, Russell 2000 −1.66% to 2,811.84, VIX +12.9% to 19.42.
• [UNSUPPORTED] The 10-year Treasury was flat at 4.93%, so this was not a rates shock. (unmatched: 4.93)
• [UNSUPPORTED] 1-day %
• [PARTIAL] Move high (AP: −1.1%); level from secondary aggregators only (nexqual.com/markets), corroborated by DIA −1.07% (unmatched: 1.07)
• [SELF-REPORTED] 28,384.85
• [SELF-REPORTED] −3.46%
• [PARTIAL] High — tool quote; 27th percentile of its 250-day range (52-wk high 35.30) (unmatched: 250, 35.3)
• [PARTIAL] Intraday, the S&P traded down to 7,527.56 before closing at 7,580.07 — the VIX spiked as high as 23.93 off a 17.21 prior close and settled at 19.42, i.e. the panic was bought into the weekend. (unmatched: 7527.56, 23.93, 17.21)
• [SELF-REPORTED] Index ETF proxies (tool-derived, 2026-10-30 close):**
• [UNSUPPORTED] 1d%
• [UNSUPPORTED] 5d%
• [SELF-REPORTED] 755.72
• [SELF-REPORTED] −0.56%
• [SELF-REPORTED] −1.81%
• [SELF-REPORTED] 690.49
• [SELF-REPORTED] −3.47%
• [SELF-REPORTED] −1.98%
• [SELF-REPORTED] −7.88%
• [SELF-REPORTED] Downtrend; bottom decile of 52-wk range
• [SELF-REPORTED] 517.13
• [SELF-REPORTED] −1.07%
• [SELF-REPORTED] −0.81%
• [SELF-REPORTED] +1.18%
• [SELF-REPORTED] Downtrend; best 20-day of the four
• [SELF-REPORTED] 279.33
• [SELF-REPORTED] −1.65%
• [SELF-REPORTED] +1.30%
• [SELF-REPORTED] −0.78%
• [SELF-REPORTED] Only proxy above its 20-day
• [PARTIAL] Volume confirms distribution rather than drift: SPY traded 77.7M shares vs a 20-day average of 39.2M; QQQ 85.2M vs 39.2M — roughly double normal turnover. (unmatched: 77.7, 39.2, 85.2)
• [PARTIAL] Sectors:** Energy was the only convincingly positive group (XLE +1.29% to +1.91% depending on source) alongside Staples; Information Technology was the worst (XLK −2.75%, with semis SMH −6.98%). (unmatched: 1.29, 2.75)
• [SELF-REPORTED] All four defensive/real-asset sectors closed green and all four cyclical/tech-adjacent sectors closed red — a ~4pp best-to-worst spread, a rotation day rather than indiscriminate selling.
• [PARTIAL] −1.4% to −1.6% (unmatched: 1.6)
• [UNSUPPORTED] +30.6%
• [UNSUPPORTED] −23.8%
• [PARTIAL] +109% / +85% / +40% (unmatched: 109)
• [SELF-REPORTED] Catalyst not established (sub-$5 micro-caps)
• [SELF-REPORTED] Honest gap:** no large-cap gainer with a verified percentage and catalyst was obtainable.
• [SELF-REPORTED] Every readable source on this session covered only the downside.
• [SELF-REPORTED] Sector-level winners (XLE, XLP) are the only substantiated "up" side of the tape.
• [SELF-REPORTED] Mega-cap earnings, not macro. WSJ's Oct.
• [PARTIAL] Volatility repricing: VIX +12.9% to 19.42. (unmatched: 12.9)
• [PARTIAL] Not rates. The US 10-year yield was essentially unchanged at 4.933% (−0.08%), so the equity decline cannot be laid at the Treasury market's door. (unmatched: 4.933)
• [SELF-REPORTED] Oil and geopolitics: front-month Brent $117.64/bbl after a tanker transiting the Strait of Hormuz came under attack, per U.K. Maritime Trade Operations (WSJ, Oct.
• [SELF-REPORTED] Crypto shock: a reported $6.3B Binance hack hit crypto sentiment the same day (single source, WSJ — medium confidence).
• [SELF-REPORTED] Items dated 2026-10-31 that did NOT drive Friday: China's October PMIs (manufacturing 49.3, non-manufacturing 49.7, composite 49.7, published 01:30 UTC Saturday — after the US close), and a dense run of Iran/Hormuz headlines time-stamped 09:00–13:40 UTC Saturday.
• [SELF-REPORTED] Completed Oct 2026 (exact date unverified)
• [SELF-REPORTED] The tell is the dispersion: NDX −3.46% and QQQ −3.47% against DIA −1.07% and IWM −1.65%, a ~2.4× gap that only mega-cap tech damage produces.
• [UNSUPPORTED] The Dow's relative resilience, Energy's +1.3% to +1.9%, and a flat 10-year yield all argue the same thing — this was an equity-level repricing of AI capital spending, not a macro liquidation. (unmatched: 1.3, 1.9)
• [PARTIAL] The double-normal volume in SPY and QQQ says institutions repositioned rather than retail panicked, and the VIX closing at 19.42 after touching 23.93 says the move was absorbed. (unmatched: 23.93)
• [SELF-REPORTED] For Monday 2026-11-02, the setup carries two live, dated risks that were not in Friday's price: China's PMIs printed in contraction (49.3/49.7) after the US close, and the Strait of Hormuz remains closed with Iranian negotiators in Doha — both supportive of Energy and adverse for cyclicals.
• [SELF-REPORTED] On M&A, the actionable name is Ares Capital / MidCap Financial: it is the only in-window transaction with a real, US-listed acquirer and target and an issuer-sourced date, and its exchange ratio is the one figure that would convert it into a usable deal.
• [SELF-REPORTED] Alphabet's move is direction-only. WSJ names it among the disappointments; no percentage was obtainable from a consistent source.
• [PARTIAL] Sector figures carry a precision caveat. Two source sets disagree on the size of sector moves (XLE +1.29% vs +1.91%; XLK −2.75% vs Tech −3.97% on a cap-weighted basis). (unmatched: 1.29, 1.91, 2.75)
• [SELF-REPORTED] Binance hack ($6.3B) is single-sourced and unconfirmed.
• [SELF-REPORTED] M&A is an absence of evidence. No in-window deal was verified to the required standard; that is not the same as a confirmed nil-activity day.

Bibliography

1. stocksetups.com/today
2. apnews.com
3. Morningstar/DJ Newswires
4. nexqual.com/markets
5. Reuters
6. CNBC
7. wsj.com
8. stockanalysis.com acquisitions tracker
9. newsroom.adt.com
10. rttnews M&A wire

Detailed Findings

Round 0 · Finding 1

US Equity Market Recap — Saturday, 2026-10-31

1. Executive Summary

US equity markets were CLOSED on 2026-10-31. October 31, 2026 fell on a Saturday. Every figure in this report is therefore the completed regular session of Friday, 2026-10-30 (close 4:00 p.m. ET), not a 2026-10-31 move. Evidence: AP's index report is headlined "How major US stock indexes fared Friday 10/30/2026" (apnews.com), and the live page dated 2026-10-31 labels its index quotes "At last close" with breadth "at the Oct 30, 2026 close" (stocksetups.com/today, dateModified 2026-10-31T14:19:52Z).

Friday's session was a mega-cap tech rout: the S&P 500 fell ~1.8%, the Nasdaq Composite ~2.9% (its worst month in over a year), the Dow ~1.1%, and small caps ~1.6%. The selloff was earnings-driven, not macro-driven — Intel, Amazon, Alphabet and Reddit all sold off post-report, and Technology was the worst S&P sector at −3.97%.

Confidence on session identity: high. Confidence on index % moves: high. Confidence on individual catalysts and earnings detail: medium-low — see §7 and §8 for explicit gaps.

2. Major Indices — 2026-10-30 Close

Tool-derived (finance_data analyze, daily bars, last_bar: 2026-10-30 13:30:00 UTC = 09:30 ET open of the 10/30 session; change_pct_1 is that session's close-to-close move):

Source: finance_data action=analyze on SPY, QQQ, DIA, IWM (tool call, 2026-10-30 bars). SPY sits at the 83rd percentile of its 52-week range (629.28–781.62); QQQ has fallen to the 65th percentile (762.86 high).

Index levels (secondary reporting; I could not fetch AP directly — bot-blocked — so these are search-index summaries of the primary index reports):

…(truncated — the summary above captures the substance)

Round 0 · Finding 2

US Equity Market Recap — Session of Friday, 2026-10-30 (markets closed 2026-10-31)

0. Market status — the date question, answered first

US equity markets were CLOSED on 2026-10-31. That date was a Saturday. Every figure below is the completed regular session of Friday, 2026-10-30 (16:00 ET close), not intraday or pre-market data.

Evidence: AP's session report is headlined "How major US stock indexes fared Friday 10/30/2026" (https://apnews.com/article/wall-street-stocks-dow-nasdaq-a01d3551e794fed1a0c317c20bc3f0a2), and WSJ/MarketWatch ran dated live coverage for Oct. 30, 2026 (https://www.wsj.com/livecoverage/stock-market-today-dow-sp-500-nasdaq-10-30-2026). My own tool data independently confirms it: the last daily bar for every instrument returned is stamped 2026-10-30 13:30:00 (finance_data action=analyze, action=history).

Because 10-31 was a non-session, the "in-window 2026-10-31" freshness rule is satisfied by 2026-10-30 close data plus 2026-10-31-dated news flow (which exists — see §4 — but is geopolitics, not price action).

1. Executive Summary

The 2026-10-30 session was a broad, high-volume risk-off day led by mega-cap technology, closing out the worst month for the Nasdaq in over a year. The S&P 500 fell 1.82% to 7,580.07, the Nasdaq Composite 2.86% to 25,437, and the Dow 1.09% to 51,770.31 — its relative resilience the clearest tell that this was a tech/AI-valuation de-rating rather than a macro-wide liquidation. Small caps fell less than large-cap tech (IWM −1.65%). Volume was roughly double normal in both SPY and QQQ, indicating institutional repositioning rather than thin drift. The stated driver, per same-day coverage, was a tech selloff following disappointing earnings from Alphabet, Intel and Amazon, with Intel the single most violent casualty at roughly −29% to −30%.

On the M&A question: I found no deal in the 2026-10-30/31 window with all five requested data points (acquirer, target, value, per-share price, premium) available. Three to four transactions were reported in the window at headline level, but I could only obtain acquirer/target names from search-result snippets — not deal values, per-share prices, or premiums — and I could not fetch the primary releases. Those fields are marked NOT OBTAINED rather than estimated.

2. Major indices — closing level and 1-day change

…(truncated — the summary above captures the substance)

Round 0 · Finding 3

US Equity Session Recap — Friday, 2026-10-30 (Markets Closed Saturday 2026-10-31)

1. Market status — was the market open on 2026-10-31?

US equity markets were CLOSED on 2026-10-31. 2026-10-31 is a Saturday. All data below represents the completed regular session of Friday, 2026-10-30, i.e. the 2026-10-30 close.

Verification: the finance_data history endpoint returned daily OHLCV for SPY and QQQ whose final bar is stamped "t": "2026-10-30 13:30:00" (09:30 ET, the session open stamp) with "last_bar": "2026-10-30 13:30:00". No bar exists for 2026-10-31. There is no intraday or pre-market 2026-10-31 data, because there is no 2026-10-31 session.

⚠️ Data-quality flag: the finance_data quote endpoint's previous_close field was internally inconsistent with the OHLCV series for SPY (it reported 764.73 vs. the 2026-10-29 bar close of 769.36). I use the OHLCV bar-to-bar calculation for ETFs and the quote figures for indices (which reconcile correctly against the bar series at a constant index/ETF ratio). Both are shown so the discrepancy is visible rather than hidden.

2. Major indices — 2026-10-30 close

Prior closes used by the tool: ^GSPC 7,721.02; ^IXIC 26,188.00; ^DJI 52,343.34; ^RUT 2,858.98; ^VIX 17.21.

Cross-check on index % moves (recomputed from the tool's own close/prior-close pairs, all reconcile to the reported figure): −140.95/7,721.02 = −1.826%; −751.00/26,188.00 = −2.868%; −573.03/52,343.34 = −1.095%; −47.14/2,858.98 = −1.649%; +2.21/17.21 = +12.84%.

Independent corroboration of the Nasdaq move: WSJ's 2026-10-30 live coverage headline reads "Tech Selloff Pushes Nasdaq to Its Worst Month in Over a Year — Tech-heavy index falls 2.9% following disappointing earnings from Alphabet, Intel and Amazon" (wsj.com, dated Oct. 30, 2026). MarketWatch's 2026-10-30 headline: "Nasdaq logs worst day since June and worst month since March 2025; S&P 500 and Dow tumble as tech stocks slide after Amazon, Intel earnings" (marketwatch.com, dated Oct. 30, 2026).

ETF proxies (bar-to-bar, 2026-10-29 close → 2026-10-30 close, from finance_data history):

…(truncated — the summary above captures the substance)

Round 0 · Finding 4

US Equity Market Recap — Session of Friday, 2026-10-30

(Prepared Saturday, 2026-10-31)

1. Executive Summary

US equity markets were CLOSED on Saturday 2026-10-31. It is a weekend date — there is no session, no intraday tape, and no close for that day. Every figure in this report is the completed session of Friday, 2026-10-30, which closed at 16:00 ET.

Two independent confirmations that 2026-10-30 is the last completed session:

• finance_data action=analyze on all four index ETF proxies returned "last_bar": "2026-10-30 13:30:00" (the daily bar is stamped at the 09:30 ET open in UTC). No 2026-10-31 bar exists in any series.
• The finance_news feed for 2026-10-31 (Saturday) contains only non-US-market items dated that day — Iranian foreign-ministry remarks, Strait of Hormuz commentary, Saudi civil-defence notices, and China's October PMI prints (Manufacturing 49.3, Non-Manufacturing 49.7, Composite 49.7). No US session data.

Friday's session was a tech-led risk-off rout that closed out October: the Nasdaq Composite fell 2.86% and the S&P 500 1.82%, both their worst days since June, while the Dow and Russell 2000 fell less. Intel collapsed ~29% — its worst day since 1974 — on weak Q4 guidance, and Alphabet extended Thursday's 12% slide. The VIX jumped 12.91% to 19.42, gold sank 3.68%, and crude rose on Strait of Hormuz tensions.

Important caveat up front: I was not able to verify any acquisition, divestiture or stake sale announced between 2026-10-30 and 2026-10-31. That is a gap in my coverage, not a finding that none occurred — see §5.

2. Key Findings

3. Detailed Analysis

3.1 Index closing levels and 1-day changes — 2026-10-30 close

…(truncated — the summary above captures the substance)

Round 0 · Finding 5

US Equity Market Recap — Session of Friday, 2026-10-30 (2026-10-31 was a market holiday)

Executive Summary

US equity markets were CLOSED on 2026-10-31. That date was a Saturday. All data below therefore represents the last completed session: Friday, 2026-10-30, closing bell 4:00 p.m. ET. This is confirmed by the WSJ live-coverage page, which is dated "Oct. 30, 2026 at 4:50pm ET" and headed "Stock Market Today" (https://www.wsj.com/livecoverage/stock-market-today-dow-sp-500-nasdaq-10-30-2026), and by the tool's own bar timestamps, which terminate at 2026-10-30 13:30:00 (09:30 ET) for every US series pulled.

It was a risk-off, tech-led selloff. The S&P 500 fell 1.82% to 7,580.07 and the Nasdaq Composite fell 2.86% to 25,436.99, while the Dow outperformed at −1.07% and small caps held up better than large-cap tech. The proximate causes visible in dated sources were (a) a disappointing Big-Tech earnings cluster (Alphabet, Intel, Amazon), (b) a Middle East escalation that pushed Brent to $117.64, and (c) a large crypto-exchange hack. VIX jumped 12.9% to 19.42.

1. Market status and session identification

2. Major indices — closing level and 1-day change (2026-10-30 close)

…(truncated — the summary above captures the substance)

Round 0 · Finding 6

US Equity Market Recap — Session of Friday, 2026-10-30

1. Were US markets open on 2026-10-31?

No — US equity markets were CLOSED on 2026-10-31. 2026-10-31 was a Saturday. This is grounded in the tool data itself, not assumption: the daily bar sequence returned by finance_data steps from 2026-10-23 straight to 2026-10-26, 10-27, 10-28, 10-29, 10-30 — i.e. 10-30 is a Friday and no weekend bars exist — and every series I pulled terminates at a last bar of 2026-10-30, with no 2026-10-31 bar anywhere:

• SPX last bar 2026-10-30 13:30:00 (source: finance_data action=history, symbol SPX)
• IXIC / NDX / RUT / VIX / SPY / QQQ / DIA / IWM all last bar 2026-10-30 (same tool calls)

Therefore all figures below represent the 2026-10-30 regular-session close, not a 2026-10-31 move. Any "today" framing for 10-31 would be a stale-data error, and I am explicitly not making one.

2. Major indices — 2026-10-30 close

All levels and 1-day % changes are read directly from finance_data (action=quote / action=history). Percentages are the tool's own reported values, not my arithmetic.

Prior close (direct read, not computed): SPX opened the 10-30 session at 7,631.07 after a 2026-10-29 close of 7,720.39, and closed at 7,580.07 with an intraday low of 7,527.56 — the session low was the print of the day (source: finance_data action=history, SPX OHLCV).

⚠️ Dow Jones Industrial Average — FLAGGED AS UNFETCHED. I could not retrieve the DJIA index level. finance_data returned "no data" for ^DJI, DJI, DJIA, WSI:DJI and TVC:DJI; the DJIA ticker that did resolve is a $22.48 common stock, not the index, and US30 returned a mis-scaled $97.25 series with a one-day-stale last bar (2026-10-29). The only valid Dow read is the DIA ETF proxy: 517.13, −1.07% on 2026-10-30 (finance_data, DIA, exchange AMEX). I am reporting −1.07% as the DIA ETF move and explicitly NOT converting it into a Dow point level. Do not treat 517.13 as a Dow print.

…(truncated — the summary above captures the substance)

Investigation Trail

Round 0

• Were US equity markets open on Saturday 2026-10-31, and what were the closing levels and 1-day and 5-day percentage changes for the S&P 500 (SPX/^GSPC), Nasdaq Composite (^IXIC), Dow Jones Industrial Average (^DJI) and Russell 2000 (^RUT) for the most recent completed session (2026-10-30)? Use finance_data action=analyze on index proxies (e.g. SPY, QQQ, DIA, IWM) if index symbols are unavailable.
• Which individual US stocks were the largest gainers and losers in the session ending 2026-10-30 (top 5 up and top 5 down, with ticker, closing price and % move), based on finance_data/monocal top-movers or market-data tools run for 2026-10-30..2026-10-31?
• What macro data releases, Federal Reserve communications, Treasury yield moves, or volatility (VIX) changes were reported between 2026-10-30 and 2026-10-31 that could explain the session's index moves? Include the specific figures (e.g. VIX level, 10-year yield, CPI/PCE/GDP prints) and dates.
• Which companies reported quarterly earnings or issued guidance between 2026-10-29 and 2026-10-31, and how did their shares react (ticker, result vs expectation, % move)? Focus on the largest market-cap reporters in that window.
• What mergers, acquisitions, divestitures, take-private deals or activist stake disclosures were announced between 2026-10-30 and 2026-10-31 involving US-listed companies? For each, give acquirer, target, deal value, per-share price and premium, with a source.
• What was the sector-level performance of the S&P 500 in the session ending 2026-10-30 (best and worst sectors with % moves), and what notable single-stock news headlines (downgrades, regulatory actions, AI capex announcements, layoffs) were published 2026-10-30..2026-10-31?

Sources

• https://apnews.com/article/wall-street-stocks-dow-nasdaq-a01d3551e794fed1a0c317c20bc3f0a2
• https://stocksetups.com/today
• https://nexqual.com/markets
• https://www.morningstar.com/news/dow-jones/2026103010975/nasdaq-composite-falls-530-this-month-to-2543700-data-talk
• https://wtop.com/national/2026/10/how-major-us-stock-indexes-fared-friday-10-30-2026/
• https://www.wsj.com/livecoverage/stock-market-today-dow-sp-500-nasdaq-10-30-2026
• https://www.cnbc.com/2026/10/30/amazon-intel-earnings-big-tech-ai-spending-concerns.html
• https://www.bloomberg.com/news/articles/2026-10-29/intel-outlook-hurt-by-weak-market-for-personal-computer-chips
• https://www.webtech360.com/detail/why-intel-intc-stock-fell-28-6-on-october-30-2026-hp2-99912808.html
• https://www.thestreet.com/stock-market-today/stock-market-today-dow-jones-sp-500-nasdaq-updates-oct-30-2026
• https://shattered.io/intel-falls-25-percent-premarket-guidance-gap-chip-rout-2026/
• https://tech-insider.org/intel-plunges-25-q4-guidance-15-16-billion-pc-slump-2026/
• https://www.rttnews.com/list/mergers.aspx
• https://investor.adt.com/News--Events/news/news-details/2026/ADT-to-be-Acquired-by-Thrive-Holdings-in-15-3-Billion-Transaction/default.aspx
• https://newsroom.adt.com/financial/adt-to-be-acquired-by-thrive-holdings-in-15-3-billion-transaction
• https://finance.yahoo.com/markets/stocks/articles/adt-private-15-3-billion-173139171.html
• https://www.therobotreport.com/category/financial/mergers-acquisitions/
• https://about.doordash.com/en-us/news/doordash-to-acquire-instacart
• https://www.reuters.com/legal/mergers-acquisitions/
• https://pro.thestreet.com/stock-market-today/2026-10-30
• https://vittarthi.com/markets/us
• https://www.investopedia.com/stock-market-today-dow-jones-s-and-p-500-nasdaq-10302026-12202212
• https://stockmarketwatch.com/indices/dowjones/today
• https://stockmarketwatch.com/indices/dowjones/reports/october-2026
• https://www.whendomarketsopen.com/market-history/2026-10/
• https://finance.yahoo.com/markets/stocks/articles/stock-market-today-oct-30-212002526.html
• https://www.fool.com/investing/2026/10/30/is-intel-stock-a-buy-after-its-post-earnings-plunge/
• https://www.cnbc.com/2026/10/29/intel-intc-q3-earnings-report-2026-.html
• https://www.businessinsider.com/intel-shares-plunge-revenue-drop-warning-ai-led-supply-shortages-2026-10?op=1
• https://stocksdownunder.com/intel-intc-stock-crash-q3-2026-earnings/
• https://www.webtech360.com/detail/why-the-nasdaq-composite-fell-2-86-on-october-30-hp2-99912809.html
• https://portfolio-terminal.com/markets/nasdaq-composite
• https://tech-insider.org/dow-vs-nasdaq-october-2026-big-tech-selloff-gap/
• https://www.alainguillot.com/stock-market-recap-october-30-2026/
• https://indexes.nasdaq.com/Index/Overview/COMP
• https://techstartups.com/2026/10/30/startup-funding-news-today-october-30-2026-kalshi-cohere-bites-dulo-opentrons-firehawk-defense-more/
• https://mergersacquisitions.einnews.com/
• https://www.cnbc.com/deals-and-ipos/
• https://www.zacks.com/stock/news/3019265/stock-market-news-for-oct-30-2026
• https://www.financialjuice.com/News/9830827/
• https://www.financialjuice.com/News/9830837/
• https://arstechnica.com/tech-policy/2026/10/paramount-completes-111b-warner-merger-creating-skydance-behemoth/
• https://www.marketwatch.com/livecoverage/stock-market-today-dow-s-p-500-nasdaq-amazon-intel-financial-earnings-us-treasurys
• https://finance.yahoo.com/markets/live/stock-market-today-friday-october-30-dow-sp-500-nasdaq-amazon-intel-ai-sell-off-191429143.html
• https://www.stocktitan.net/articles/stock-market-today-live-october-30-2026
• https://stockanalysis.com/actions/acquisitions/2026/
• https://www.theonlineinvestor.com/mergers
• https://portfolio-terminal.com/markets/stock-market-close
• https://theclosereport.com/
• https://ir.skydance.com/news-releases/news-release-details/paramount-skydance-and-warner-bros-discovery-announce
• https://investors.peoplesbancorp.com/news/news-details/2026/PEOPLES-BANCORP-INC--AND-CAPITAL-BANCORP-INC--ANNOUNCE-MERGER-AGREEMENT/default.aspx
• https://www.acquisitionsnews.com/deals-2026
• https://www.prnewswire.com/news-releases/peoples-bancorp-inc-and-capital-bancorp-inc-announce-merger-agreement-302893578.html
• https://www.theonlineinvestor.com/mergers/
• https://www.reuters.com/business/intel-warning-sparks-chip-rout-pc-weakness-clouds-turnaround-2026-10-30/
• https://www.businessinsider.com/intel-shares-plunge-revenue-drop-warning-ai-led-supply-shortages-2026-10
• https://www.bloomberg.com/news/articles/2026-10-29/stock-market-today-dow-s-p-live-updates
• https://www.barrons.com/livecoverage/stock-market-news-today-103026
• https://qz.com/intel-stock-plunges-amazon-nasdaq-100-sell-off-103026
• https://www.financialjuice.com/News/9830837/Irans-armed-forces-chief-military-compiles-new-list-of-US-and-Israeli-targets-assets-across-expanded-region.aspx?xy=rss
• https://www.financialjuice.com/News/9830827/Irans-Aragchi-to-Al-Jazeera-reopening-Strait-of-Hormuz-on-Tehran-terms-would-open-door-for-talks-with-Washington.aspx?xy=rss
• https://www.financialjuice.com/News/9830815/Irans-FM-to-Al-Jazeera-Iranian-plan-is-only-proposal-currently-on-table-to-reopen-Strait-of-Hormuz.aspx?xy=rss
• https://www.financialjuice.com/News/9830784/Iranian-negotiators-in-Doha-to-continue-talks-with-Qatari-mediators-after-12-hour-session-in-Tehran-yesterday-part-of-ongoing-effort-to-end-US-Iran-war---official-brief.aspx?xy=rss
• https://www.financialjuice.com/News/9830756/Russia-prolongs-diesel-export-prohibition-through-January-IFX.aspx?xy=rss
• https://newsroom.adt.com
• https://finance.yahoo.com/markets/stocks/articles/stock-market-today-oct-30-141142726.html
• https://fxdailyreport.com/us-stock-market-technical-analysis-october-30-2026/
• https://www.federalreserve.gov/apps/h2a/h2a.aspx
• https://www.acquisitionsnews.com/top-mergers-and-acquisitions/october-2026
• https://dailyaibrief.com/categories/funding-mergers-acquisitions
• https://www.oregonlive.com/silicon-forest/2026/10/intel-stock-plummets-nearly-30-on-chipmakers-terrible-outlook.html
• https://www.businesstoday.com.my/2026/10/30/intel-stock-plunge-30-marking-worst-day-since-1974/
• https://stockmarketwatch.com/digest/2026-10-30
• https://tickerdaily.com/article/stock-market-today-october-30-2026-sandp-500-closes-near-flat-as-tech-digests-earnings
• https://247wallst.com/investing/2026/10/30/stock-market-today-nasdaq-futures-plunge-2-as-big-tech-sells-off/
• https://money.usnews.com/investing/news/articles/2026-10-30/nasdaq-faces-2-trillion-wipeout-in-october-as-ai-spending-fears-deepen
• https://www.statmuse.com/money/ask/sandp-500-close-october-30-2026
• https://quant500.com/sp500-gainers-losers
• https://www.statmuse.com/money/ask/s-and-p-500-close-each-day-october-2026
• https://insight.factset.com/sp-500-earnings-season-update-october-30-2026
• https://www.financialjuice.com/News/9830817/
• https://www.financialjuice.com/News/9830430/
• https://www.financialjuice.com/News/9830433/
• https://www.financialjuice.com/News/9830431/China-October-official-manufacturing-PMI-at-49.3
• https://www.financialjuice.com/News/9830433/China-October-official-composite-PMI-at-49.7
• https://www.financialjuice.com/News/9830432/Chinese-NBS-Non-Manufacturing-PMI-Actual-49.7
• https://www.reuters.com/markets/

Trace Index

Tool-call traces are persisted under /srv/swarm_web_runs/run-1793456488399-0002/finance_output/traces.