October 16 Recap: SPX GEX Deepens to −$143.34B as Premium Falls 31%10 月 16 日复盘：SPX GEX 加深至 −$143.34B，权利金下降 31%

SPX net GEX went from −13.69B on October 15 to −143.34B on October 16, the most negative SPX reading in any Digest edition so far. Single-name premium fell from $27.1B to $18.8B (−31%), and the tape turned from leaned bullish to leaned bearish.

$18.8B, 57% calls, 25% bullish versus 28% bearish. MU led at $1.8B Bearish; every index GEX row except DIA was Negative.

Open Daily Market Recap or the October 16 session. Sign-in and a paid entitlement may be required.

What the recap printed

Test app, session 2026-10-16, KPI. Captured October 21, 2026 (Pacific time).

Sentiment bars: Neutral $8.9B, Bearish $5.2B, Bullish $4.7B.

Test app, session 2026-10-16, Step 1. Captured October 21, 2026 (Pacific time).

What changed since October 15

The call share rose ten points while the sentiment split moved from three points bullish to three points bearish. SPY joined SPX, NDX, QQQ, and IWM on the Negative side; DIA stayed Positive (+0.21 to +0.44).

Leaders: where premium concentrated

Test app, session 2026-10-16, Step 2. Captured October 21, 2026 (Pacific time).

All six of the largest names carried Bearish tags; AAPL ($582M) was the first Mixed name. Five of the six showed more call than put premium, SNDK the exception. On October 15, MU, NVDA, SNDK, and AMD had all been tagged Bullish.

The bottom line and glance print MU at $1.7B; the leaders table and headline cards print $1.8B.

Test app, session 2026-10-16, Bottom line / glance. Captured October 21, 2026 (Pacific time).

Exposure and volatility context

The glance lists NFLX +0M shares-equiv. as largest Net DEX and TSLA 297% as largest Net DEI magnitude. Step 4 pairs TSLA's 297% with a Negative Net DEX sign; on October 15 the leader there was MU at 133%.

Step 5's highest IV rank among active names is LLY 69 / 100, with 42.7% 30-day implied volatility, down from RKLB's 100 / 100 on October 15.

Index GEX: SPX −143.34B

Test app, session 2026-10-16, Step 6 · T+1. Captured October 21, 2026 (Pacific time).

SPX's −143.34 is beyond the −105.30 printed for October 14. Against October 15, QQQ roughly tripled (−2.85 to −8.39) and IWM roughly doubled (−2.66 to −5.67), while NDX moved slightly the other way (−3.89 to −3.49).

Headline name: MU at $879

Test app, session 2026-10-16, Step 8. Captured October 21, 2026 (Pacific time).

Cards: last $879, premium $1.8B, 52% calls, 27% bullish, 73% average IV on traded contracts. On October 15 the cards read $931, $2.8B, 48% calls, 29% bullish, and 75%.

Test app, session 2026-10-16, Step 8 · prints. Captured October 21, 2026 (Pacific time).

On October 15 the six largest MU tickets were $28M–$42M puts expiring the next day, 2026-10-16. On October 16 the largest was $8M, and all six expired between January 2027 and January 2028. Four 10:38 puts split their tags: Bearish at the 980 and 800 strikes, Bullish at 990 and 970.

Movers: CRGY +8.6%

Test app, session 2026-10-16, Step 7. Captured October 21, 2026 (Pacific time).

Bottom line: CRGY +8.6%. Step 7 in both runs: CRGY 8.7%, Up. October 15's largest gain was CYPH +23.8%.

What this session is evidence of

How to read these numbers

This edition reads TradingFlow's Daily Market Recap for October 16, 2026, captured on October 21 (Pacific time); two runs printed the same figures. It is a completed-session report, not a trade recommendation.

Two clocks apply. Premium, sentiment, and prints describe the session tape; GEX and IV are the recap's T+1 / prior-close snapshots, not a live intraday gamma map. Neutral premium supplies no direction, and call share is option type, not bullish sentiment. Net DEI is an unsigned magnitude relative to typical activity; Net DEX is a separate signed classification, and a +0M reading rounds to zero. GEX is modeled chain structure under TradingFlow's dealer-sign convention, not observed dealer inventory, a support level, or the next session's direction. Ticket tags do not prove who bought or sold or whether a position opened, and intraday_pct is a first-to-last underlying-price proxy from the option tape, not a verified daily return.

Reproduce the findings

1. Open the October 16 recap; confirm Oct 16, 2026 in the session KPI.
2. Open the October 15 recap beside it and compare the KPI strip, leaders, and all six index GEX rows.
3. Compare MU's leaders-table tag, headline cards, and largest tickets on both days.
4. Read Steps 4–6 separately: exposure magnitude, volatility rank, and index structure.

TradingFlow App Home → Cookbooks → Daily Market Recap → select the completed session.

Related reading

• October 15 recap
• October 14 recap
• Daily Market Recap in Cookbooks
• Option flow · Gamma exposure · IV rank

SPX 净 GEX 从 10 月 15 日的 −13.69B 变为 10 月 16 日的 −143.34B，是盘面各期中最负的 SPX 读数。个股权利金从 $27.1B 降至 $18.8B（−31%），整体情绪从偏多转为偏空。

权利金 $18.8B，57% 为 call；看多 25%、看空 28%。MU 以 $1.8B Bearish 居首；除 DIA 外，所有指数 GEX 均为 Negative。

打开 Daily Market Recap 或 10 月 16 日报告。可能需要登录及付费权限。

复盘显示了什么

测试应用，交易日 2026-10-16，KPI。采集于 2026 年 10 月 21 日（太平洋时间）。

情绪柱：Neutral $8.9B、Bearish $5.2B、Bullish $4.7B。

测试应用，交易日 2026-10-16，Step 1。采集于 2026 年 10 月 21 日（太平洋时间）。

与 10 月 15 日相比的变化

Call 占比上升 10 个百分点，情绪差却从看多领先 3 个百分点变为看空领先 3 个百分点。SPY 与 SPX、NDX、QQQ、IWM 一同转入 Negative；DIA 保持 Positive（+0.21 至 +0.44）。

活跃榜：权利金集中在哪

测试应用，交易日 2026-10-16，Step 2。采集于 2026 年 10 月 21 日（太平洋时间）。

权利金最大的六个标的全部标记为 Bearish；第一个 Mixed 标的是 AAPL（$582M）。六者中有五个 call 权利金高于 put，SNDK 例外。10 月 15 日，MU、NVDA、SNDK 与 AMD 都曾标记为 Bullish。

Bottom line 与速览显示 MU 为 $1.7B；活跃榜与焦点卡片显示 $1.8B。

测试应用，交易日 2026-10-16，Bottom line / glance。采集于 2026 年 10 月 21 日（太平洋时间）。

敞口与波动率背景

速览的最大 Net DEX 为 NFLX +0M shares-equiv.，最大 Net DEI 幅度为 TSLA 297%。步骤 4 中 TSLA 的 297% 对应 Negative Net DEX；10 月 15 日该项居首的是 MU 133%。

步骤 5 的活跃标的最高 IV rank 是 LLY 69 / 100，30 天隐含波动率 42.7%，低于 10 月 15 日 RKLB 的 100 / 100。

指数 GEX：SPX −143.34B

测试应用，交易日 2026-10-16，Step 6 · T+1。采集于 2026 年 10 月 21 日（太平洋时间）。

SPX 的 −143.34 超过 10 月 14 日的 −105.30。与 10 月 15 日相比，QQQ 约扩大至三倍（−2.85 至 −8.39），IWM 约扩大一倍（−2.66 至 −5.67），NDX 则小幅反向（−3.89 至 −3.49）。

焦点标的：MU 显示 $879

测试应用，交易日 2026-10-16，Step 8。采集于 2026 年 10 月 21 日（太平洋时间）。

卡片显示：最新价 $879、权利金 $1.8B、52% calls、27% bullish、成交合约平均 IV 73%。10 月 15 日的卡片为 $931、$2.8B、48% calls、29% bullish、75%。

测试应用，交易日 2026-10-16，Step 8 · prints。采集于 2026 年 10 月 21 日（太平洋时间）。

10 月 15 日，MU 最大的六笔成交都是次日（2026-10-16）到期的 put，权利金 $28M–$42M。10 月 16 日最大一笔为 $8M，六笔全部在 2027 年 1 月至 2028 年 1 月之间到期。10:38 的四笔 put 标签分化：980 与 800 行权价为 Bearish，990 与 970 为 Bullish。

涨跌榜：CRGY +8.6%

测试应用，交易日 2026-10-16，Step 7。采集于 2026 年 10 月 21 日（太平洋时间）。

Bottom line：CRGY +8.6%。两次运行的步骤 7：CRGY 8.7%，Up。10 月 15 日最大涨幅为 CYPH +23.8%。

这个交易日证明了什么

如何阅读这些数字

本期读取 TradingFlow 2026 年 10 月 16 日 Daily Market Recap，于 10 月 21 日（太平洋时间）采集，两次运行的数字一致。这是已完成交易日的报告，不是交易建议。

请分开两个时钟：权利金、情绪与成交记录描述当日成交；GEX 与 IV 是报告的 T+1 / 前收盘快照，不是实时盘中 gamma 地图。中性权利金不提供方向，call 占比是期权类型，不是看多情绪。Net DEI 是相对常态活跃度的无符号幅度；Net DEX 是独立的带符号分类，+0M 读数四舍五入为零。GEX 是 TradingFlow 做市商符号约定下的模型期权链结构，不是已观测的做市商库存、支撑位或下一交易日方向。成交标签不证明谁买谁卖或是否开仓；intraday_pct 是期权成交中标的价格从首笔到末笔的代理变化，不是核验过的日收益率。

复现这些读数

1. 打开 10 月 16 日报告，确认交易日 KPI 为 Oct 16, 2026。
2. 同时打开 10 月 15 日报告，对照 KPI、活跃榜与全部六行指数 GEX。
3. 对照两天 MU 的活跃榜标签、焦点卡片与最大成交。
4. 分开阅读步骤 4–6：敞口幅度、波动率排名与指数结构。

TradingFlow App Home → Cookbooks → Daily Market Recap → 选择已完成交易日。

相关阅读

• 10 月 15 日复盘
• 10 月 14 日复盘
• Cookbooks 中的 Daily Market Recap
• 期权资金流 · Gamma exposure · IV rank