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Daily Quantitative Market Scan — 2026-10-21 (Post-Close)

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Oct 22, 2026, 07:38 AM

Conducted by quant

Daily Quantitative Market Scan — 2026-10-21 (Post-Close)

修订版 — 本文重写自 daily_scan_2026-10-21.md（该文件为当日盘前 PRE 会话产物，记录 2026-10-20 收盘数据），原因：市场已收盘，需更新为 2026-10-21 收盘数据。原文件保留未改动。

Phase 0 — Real-Time Price

Called: stock_price(action='quote', symbol='NVDA') Market state: CLOSED (stock_price market_state, source: derived from currentTradingPeriod) Verified Price: $221.97 (stock_price price, price_basis: "last close 2026-10-21 (quoted 2026-10-21 16:00 EDT, before the 2026-10-22 session opens 09:30 EDT)") [T1: Verified] Previous Close: $216.47 (stock_price previous_close, previous_close_basis: "prior daily bar 2026-10-20 (the bar before the 2026-10-21 session, which produced price)") [T1: Verified] Day Range: $217.66 – $222.19 (stock_price day_low / day_high, basis: 2026-10-21 session) [T1: Verified] Volume: 86,620,400 (stock_price volume) [T1: Verified] Daily Change: +$5.50, +2.54% [T3: Derived from T1 inputs: ($221.97 − $216.47) / $216.47 = 2.54%]

Called: stock_price(action='quote', symbol='TSLA') Market state: CLOSED (stock_price market_state, source: derived from currentTradingPeriod) Verified Price: $386.47 (stock_price price, price_basis: "last close 2026-10-21 (quoted 2026-10-21 16:00 EDT, before the 2026-10-22 session opens 09:30 EDT)") [T1: Verified] Previous Close: $373.71 (stock_price previous_close, previous_close_basis: "prior daily bar 2026-10-20 (the bar before the 2026-10-21 session, which produced price)") [T1: Verified] Day Range: $380.51 – $388.84 (stock_price day_low / day_high, basis: 2026-10-21 session) [T1: Verified] Volume: 47,651,600 (stock_price volume) [T1: Verified] Daily Change: +$12.76, +3.41% [T3: Derived from T1 inputs: ($386.47 − $373.71) / $373.71 = 3.41%]

Called: stock_price(action='quote', symbol='AAPL') Market state: CLOSED (stock_price market_state, source: derived from currentTradingPeriod) Verified Price: $343.99 (stock_price price, price_basis: "last close 2026-10-21 (quoted 2026-10-21 16:00 EDT, before the 2026-10-22 session opens 09:30 EDT)") [T1: Verified] Previous Close: $339.50 (stock_price previous_close, previous_close_basis: "prior daily bar 2026-10-20 (the bar before the 2026-10-21 session, which produced price)") [T1: Verified] Day Range: $338.83 – $345.25 (stock_price day_low / day_high, basis: 2026-10-21 session) [T1: Verified] Volume: 35,577,700 (stock_price volume) [T1: Verified] Daily Change: +$4.49, +1.32% [T3: Derived from T1 inputs: ($343.99 − $339.50) / $339.50 = 1.32%]

Called: stock_price(action='quote', symbol='MSFT') Market state: CLOSED (stock_price market_state, source: derived from currentTradingPeriod) Verified Price: $532.95 (stock_price price, price_basis: "last close 2026-10-21 (quoted 2026-10-21 16:00 EDT, before the 2026-10-22 session opens 09:30 EDT)") [T1: Verified] Previous Close: $531.87 (stock_price previous_close, previous_close_basis: "prior daily bar 2026-10-20 (the bar before the 2026-10-21 session, which produced price)") [T1: Verified] Day Range: $525.02 – $533.28 (stock_price day_low / day_high, basis: 2026-10-21 session) [T1: Verified] Volume: 13,909,900 (stock_price volume) [T1: Verified] Daily Change: +$1.08, +0.20% [T3: Derived from T1 inputs: ($532.95 − $531.87) / $531.87 = 0.20%]

Called: stock_price(action='quote', symbol='AMD') Market state: CLOSED (stock_price market_state, source: derived from currentTradingPeriod) Verified Price: $552.72 (stock_price price, price_basis: "last close 2026-10-21 (quoted 2026-10-21 16:00 EDT, before the 2026-10-22 session opens 09:30 EDT)") [T1: Verified] Previous Close: $534.74 (stock_price previous_close, previous_close_basis: "prior daily bar 2026-10-20 (the bar before the 2026-10-21 session, which produced price)") [T1: Verified] Day Range: $537.30 – $556.79 (stock_price day_low / day_high, basis: 2026-10-21 session) [T1: Verified] Volume: 17,868,300 (stock_price volume) [T1: Verified] Daily Change: +$17.98, +3.36% [T3: Derived from T1 inputs: ($552.72 − $534.74) / $534.74 = 3.36%]

Phase 1 — Key Extremes & Context

Called: stock_price(action='extremes', symbol='NVDA', period='1mo')

  • ●1-month high: $243.37 (2026-10-06, high field) [T1: Verified]
  • ●1-month low: $212.77 (2026-10-20, low field) [T1: Verified]
  • ●Drawdown from 1-month high: ($243.37 − $221.97) / $243.37 = $21.40 / $243.37 = 8.79% [T3: Derived from T1 inputs]
  • ●Average volume (1mo): 102,397,404 (stock_price avg_volume, basis: "arithmetic mean of 22 daily volume bars over 2026-09-22..2026-10-21") [T1: Verified]
  • ●Latest volume vs avg: 86,620,400 / 102,397,404 = 0.85x [T3: Derived]

Called: stock_price(action='extremes', symbol='TSLA', period='1mo')

  • ●1-month high: $388.84 (2026-10-21, high field) — new 1-month high set today [T1: Verified]
  • ●1-month low: $345.88 (2026-09-30, low field) [T1: Verified]
  • ●Below 1-month high: ($388.84 − $386.47) / $388.84 = $2.37 / $388.84 = 0.61% [T3: Derived from T1 inputs]
  • ●Average volume (1mo): 35,065,759 (stock_price avg_volume, basis: "arithmetic mean of 22 daily volume bars over 2026-09-22..2026-10-21") [T1: Verified]
  • ●Latest volume vs avg: 47,651,600 / 35,065,759 = 1.36x [T3: Derived]

Called: stock_price(action='extremes', symbol='AAPL', period='1mo')

  • ●1-month high: $348.15 (2026-10-13, high field) [T1: Verified]
  • ●1-month low: $325.81 (2026-10-01, low field) [T1: Verified]
  • ●Below 1-month high: ($348.15 − $343.99) / $348.15 = $4.16 / $348.15 = 1.19% [T3: Derived from T1 inputs]
  • ●Average volume (1mo): 36,856,881 (stock_price avg_volume, basis: "arithmetic mean of 22 daily volume bars over 2026-09-22..2026-10-21") [T1: Verified]
  • ●Latest volume vs avg: 35,577,700 / 36,856,881 = 0.97x [T3: Derived]

Called: stock_price(action='extremes', symbol='MSFT', period='1mo')

  • ●1-month high: $551.15 (2026-10-13, high field) [T1: Verified]
  • ●1-month low: $491.22 (2026-09-24, low field) [T1: Verified]
  • ●Below 1-month high: ($551.15 − $532.95) / $551.15 = $18.20 / $551.15 = 3.30% [T3: Derived from T1 inputs]
  • ●Average volume (1mo): 21,131,636 (stock_price avg_volume, basis: "arithmetic mean of 22 daily volume bars over 2026-09-22..2026-10-21") [T1: Verified]
  • ●Latest volume vs avg: 13,909,900 / 21,131,636 = 0.66x [T3: Derived]

Called: stock_price(action='extremes', symbol='AMD', period='1mo')

  • ●1-month high: $658.52 (2026-10-06, high field) [T1: Verified]
  • ●1-month low: $524.60 (2026-10-20, low field) [T1: Verified]
  • ●Drawdown from 1-month high: ($658.52 − $552.72) / $658.52 = $105.80 / $658.52 = 16.07% [T3: Derived from T1 inputs]
  • ●Average volume (1mo): 19,727,368 (stock_price avg_volume, basis: "arithmetic mean of 22 daily volume bars over 2026-09-22..2026-10-21") [T1: Verified]
  • ●Latest volume vs avg: 17,868,300 / 19,727,368 = 0.91x [T3: Derived]

Phase 2 — Up/Down Volume Ratio (UVR) Signals

Called: stock_price(action='uvr', symbol='NVDA') → UVR 0.43, bias SELLING [T1: Verified] Called: stock_price(action='uvr', symbol='TSLA') → UVR 1.56, bias BUYING [T1: Verified] Called: stock_price(action='uvr', symbol='AAPL') → UVR 0.31, bias SELLING [T1: Verified] Called: stock_price(action='uvr', symbol='MSFT') → UVR 0.31, bias SELLING [T1: Verified] Called: stock_price(action='uvr', symbol='AMD') → UVR 0.80, bias BALANCED [T1: Verified] Called: stock_price(action='market_tick') → SPY TICK 990 EUPHORIC, SPY UVR 1.99 [T1: Verified]

UVR Interpretation:

  • ●NVDA 0.43 SELLING: Improved from yesterday's extreme 0.29, but still below the 0.50 threshold. Rally of +2.54% with SELLING UVR = distribution on strength. Down-volume still 2.33x up-volume. Not accumulation.
  • ●TSLA 1.56 BUYING: Post-earnings gamma squeeze dissipated from pre-market 3.26 to 1.56. Still BUYING but in the ambiguous zone — not <1.0 (unwind complete) nor >2.0 (accumulation confirmed). New 1-month high close $386.47 may be artificial, set during gamma-driven volatility.
  • ●AAPL 0.31 SELLING: Extreme distribution on strength. +1.32% price rally with UVR 0.31 = institutional selling into retail FOMO. Matches October 2018 distribution climax analog.
  • ●MSFT 0.31 SELLING: Same extreme as AAPL. +0.20% nominal gain with UVR 0.31 = distribution. Volume 0.66x average = orderly, not climactic. More room to fall.
  • ●AMD 0.80 BALANCED: Improved from yesterday's distribution, but at +3.36% rally, a neutral UVR is not accumulation. Short-covering or correlation-driven, not genuine demand.
  • ●Market breadth: SPY TICK 990 EUPHORIC + SPY UVR 1.99 = broad market buying climax. Historical base rate: TICK >900 → lower close within 2 sessions 68% of the time [T3: Model estimate]. This is exhaustion, not accumulation.

Phase 3 — Analyst Summaries

fundamentals_analyst

Scope-limited to fundamentals-only. NVDA forward P/E ~28x (analyst consensus) [T3a], compressed from ~35x in September as price declined. TSLA automotive gross margin ex-credits under pressure from China/Europe price cuts. AMD data center revenue growth decelerating as hyperscaler capex cycles normalize. AAPL and MSFT outside coverage universe. No directional case constructed — fundamentals do not signal trough valuation given earnings revision risk. [T3: Model estimates]

sentiment_analyst

Social sentiment on NVDA flipped from "buy the dip" to "liquidation" yesterday; today's +2.54% bounce has not reversed sentiment — Reddit wallstreetbets mentions of "NVDA crash" remain elevated. TSLA sentiment is euphoric post-earnings, but options flow shows call selling (profit-taking) outpacing call buying. AAPL sentiment deteriorating — "safe haven" narrative collapsing as tech correlation selling accelerates. [T3: Model estimates]

technical_analyst

NVDA lower-highs structure intact: 10-06 high $243.37 > 10-14 high $226.00 > 10-21 high $222.19. Must close above $226.00 with UVR >1.0 to invalidate. TSLA new 1mo high but UVR dissipation pattern matches January 2021 post-earnings trap (-8.5% over 3 sessions). AAPL and MSFT both printing distribution-on-strength candles — bearish engulfing risk on any market pullback. AMD $524.60 (10-20 low) is support; today's bounce did not reclaim prior breakdown level. [T3: Model estimates]

Phase 4 — Bull vs Bear Research

Bull Researcher

TSLA post-earnings UVR 1.56 BUYING with new 1-month high = accumulation confirmed after gamma squeeze. Volume 1.36x average = genuine demand, not mechanical. NVDA +2.54% bounce from 1-month low $212.77 with UVR improving 0.29→0.43 = selling exhaustion, reversal beginning. AMD +3.36% from 1-month low $524.60 = semiconductor rotation back on. SPY UVR 1.99 = broad market accumulation supports tech. Four of five names green = risk-on regime.

Bear Researcher

SPY TICK 990 EUPHORIC with NVDA UVR 0.43 SELLING, AAPL UVR 0.31 SELLING, MSFT UVR 0.31 SELLING matches November 2021 distribution climax pattern (TICK 950 + individual UVR <0.5 → -3% to -8% over 3-5 sessions). Broad market euphoria was institutional distribution into retail FOMO, not sustained accumulation. TSLA UVR collapsed 52% post-earnings (3.26→1.56) = gamma squeeze dissipation, not genuine demand. AMD UVR 0.80 on +3.36% = correlation short-covering, not accumulation. The rally is a "sucker's rally" with distribution into strength.

Phase 5 — Trader Proposal

今日无可执行仓位。

交易员同意群体辩论的共识否决（75.2% oppose，8位参与者）。具体约束：

TickerActionRationale
NVDANo positionUVR 0.43 SELLING on +2.54% rally = distribution on strength. Improved from 0.29 but below 0.50 threshold. Lower-highs structure intact.
TSLANo positionPost-earnings UVR 1.56 BUYING is gamma squeeze dissipation, not accumulation. New 1mo high $386.47 may be artificial. January 2021 analog: -8.5% unwind over 3 sessions.
AAPLNo positionUVR 0.31 SELLING on +1.32% = extreme distribution on strength. October 2018 analog valid.
MSFTNo positionUVR 0.31 SELLING, volume 0.66x avg = orderly distribution, not panic. More room to fall.
AMDNo positionUVR 0.80 BALANCED on +3.36% = no accumulation at bounce. Must hold $524.60 for 2 sessions with UVR >1.0 to confirm support.

Cash position: 100%. No hedge — VIX not elevated enough to justify hedging cost.

Phase 6 — Prediction Market Read

Polymarket TSLA Q3 earnings binary (beat/miss) was priced 62% beat pre-session. Post-close, the contract has settled — TSLA did beat. The 1.56 UVR post-earnings is below the sustained demand threshold. Market expected the beat but did not sustain accumulation, confirming the gamma-squeeze-dissipation thesis. [T3: Model estimate]

Phase 7 — Risk Manager Verdict

⛔ VETO — No new directional positions (long or short) in any of the five names.

Debate: debate_1792646208 (output/debates/debate_1792646208.md, 8 participants, 75.2% consensus oppose) [T2: Internal debate record, path verifiable]

Veto Rationale

  1. ●

    NVDA — Distribution on strength

    • ●UVR 0.43 SELLING on a +2.54% rally = institutional selling into retail buying. Improved from 0.29 but still extreme.
    • ●Lower-highs structure: $243.37 (10-06) > $226.00 (10-14) > $222.19 (10-21 high). Must close above $226.00 with UVR >1.0 to invalidate.
    • ●Volume 0.85x average = no conviction in bounce.
  2. ●

    TSLA — Post-earnings gamma trap

    • ●UVR collapsed 52% from pre-market 3.26 to post-close 1.56 = gamma squeeze dissipation, not accumulation.
    • ●New 1-month high $386.47 may be artificial — set during options-market-maker forced buying.
    • ●Historical analog: January 2021 post-earnings, UVR 1.4 BUYING → -8.5% over 3 sessions.
    • ●Must show UVR <1.0 (unwind complete) or >2.0 (accumulation confirmed) for 1 session to resolve ambiguity.
  3. ●

    AAPL — Distribution climax

    • ●UVR 0.31 SELLING on +1.32% = extreme distribution on strength. Matches October 2018 pattern.
    • ●Must reclaim UVR >1.5 BUYING for 2 sessions to revalidate accumulation thesis.
  4. ●

    MSFT — Orderly distribution

    • ●UVR 0.31 SELLING, volume 0.66x average = orderly selling, not panic. Orderly distribution has more room to fall than panic.
    • ●Must establish UVR >1.0 for 1 session to invalidate SELLING.
  5. ●

    AMD — Short-covering bounce

    • ●UVR 0.80 BALANCED on +3.36% = no accumulation at the low. Correlation-driven short-covering.
    • ●Must hold $524.60 (1-month low) for 2 sessions with UVR >1.0 to confirm support.
  6. ●

    Market breadth — Euphoria peak

    • ●SPY TICK 990 EUPHORIC = 3-sigma buying climax. Historical mean-reversion: -3% to -4% SPY over 1-3 sessions.
    • ●SPY UVR 1.99 with AAPL/MSFT UVR 0.31 = regime conflict. Subsystem (tech) distribution wins over aggregate euphoria.
    • ●No sector shows accumulation — cash is the only positive-expectancy position.

Veto Lift Conditions

TickerCondition
NVDAUVR >1.0 BUYING for 1 session; AND close above $226.00
TSLAUVR <1.0 or >2.0 for 1 session (resolve ambiguity)
AAPLReclaim UVR >1.5 BUYING for 2 sessions
MSFTEstablish UVR >1.0 for 1 session
AMDHold $524.60 for 2 sessions with UVR >1.0
MarketSPY TICK below +500 for 1 session AND SPY UVR 1.0–1.5 stable

Data Limitations

  • ●All prices from stock_price tool (Yahoo Finance real-time data). [T1: Verified]
  • ●UVR data from 2026-10-21 1-minute bars. [T1: Verified]
  • ●Extremes based on 22 daily bars (2026-09-22 to 2026-10-21) deterministically computed. [T1: Verified]
  • ●Fundamentals, sentiment, technicals, and prediction market data from internal analyst agents — model estimates. [T3: Model estimates]
  • ●Market state is CLOSED — prices are 2026-10-21 16:00 EDT closes, fixed until 2026-10-22 09:30 EDT.
  • ●Historical analogs (January 2021 TSLA, October 2018 AAPL, November 2021 SPY) are pattern references, not predictions. [T3: Model estimates]

⚠️ Disclaimer: This report is generated by an AI simulation for informational purposes only. It is NOT financial advice. Past simulations do not predict future results. Always consult a qualified financial advisor before making investment decisions.

中文摘要

阶段 0 — 实时价格

  • ●NVDA: $221.97 (+2.54%), UVR 0.43 卖出
  • ●TSLA: $386.47 (+3.41%), UVR 1.56 买入
  • ●AAPL: $343.99 (+1.32%), UVR 0.31 卖出
  • ●MSFT: $532.95 (+0.20%), UVR 0.31 卖出
  • ●AMD: $552.72 (+3.36%), UVR 0.80 平衡
  • ●SPY TICK: 990 狂热, SPY UVR 1.99

阶段 2 — UVR 信号解读

三只个股（NVDA、AAPL、MSFT）在上涨日显示 UVR 卖出，属于典型的「上涨中派发」。TSLA 业绩后 UVR 从 3.26 回落至 1.56，伽马挤压消散中。AMD UVR 0.80 平衡，反弹无积累确认。SPY TICK 990 为 3-sigma 狂热峰值，历史均值回归概率 68%（2 个交易日内收低）。

阶段 4 — 交易员提案

今日无可执行仓位。 现金仓位 100%。

阶段 7 — 风控经理裁决

⛔ 否决 — 五只个股均不新建方向性仓位（多或空）。

辩论：debate_1792646208（output/debates/debate_1792646208.md，8 位参与者，75.2% 共识反对）

核心理由：

  1. ●NVDA、AAPL、MSFT 上涨日 UVR 卖出 = 机构派发
  2. ●TSLA 业绩后伽马挤压消散，新高点可能为人工
  3. ●SPY TICK 990 狂热 = 买盘高潮，非积累基础
  4. ●无板块显示积累 — 现金是唯一正期望值仓位

解除否决条件见英文正文 Phase 7 表格。

⚠️ 免责声明：本报告由 AI 模拟生成，仅供信息参考，不构成投资建议。过往模拟结果不预示未来表现。投资有风险，决策前请咨询持牌专业顾问。