Market Analysis2026-09-176 min read

September 17 Recap: Balanced Tape, AMD $1.7B, SPX GEX Negative

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Daily Market Recap on the completed September 17 session printed $23.3B of single-name premium, 50% calls / 50% puts, with tone balanced at 23% bullish vs 23% bearish. AMD, SPCX, and MU each absorbed $1.7B. SPX GEX was Negative at −$23.11B.

#Daily Market Recap #Cookbooks #option flow #gamma exposure #AMD #SPX #Rank

This is a Daily Market Recap readout of the completed September 17, 2026 session. It is not a trade.

Two clocks sit in the same report:

Session tape — single-name (STOCK) premium, sentiment, timing, and movers from AggregatedOptionTrades.
TradingFlow GEX / IV — prior-close chain and meta snapshots (T+1). They do not recompute live 0DTE books.

The session was balanced at 23% bullish vs 23% bearish, with $23.3B of single-name premium split 50% / 50% calls and puts. Three names tied at the top of premium: AMD, SPCX, and MU at $1.7B, each tagged Bullish. Index GEX was Negative on SPX at −$23.11B. That is the finding.

Diagram of the September 17 session: $23.3B single-name tape, balanced 23/23, AMD $1.7B bullish, SPX GEX Negative

Tape versus T+1 structure. Sentiment and premium are the session. GEX is prior-close. Neither row is a forecast.

Readers with access can open Daily Market Recap or the dated run market-recap~2026-09-17. Sign-in and an eligible trial or subscription may be required.

What the recap printed

Daily Market Recap header for September 17, 2026, with $23.3B total premium, 50% calls, 50% puts, and 23% bullish vs 23% bearish

Test app, official Daily Market Recap, session 2026-09-17. KPI strip is the session tape. Captured September 18, 2026.

On this run:

Session: Sep 17, 2026 (latest completed)
Total premium: $23.3B (single-name)
Call premium: 50% · put premium: 50%
Bullish: 23% · bearish: 23%
Tone: balanced
Largest sentiment bucket: NEUTRAL $12.6B (bullish $5.5B, bearish $5.3B)
Heaviest name: AMD $1.7B
Biggest mover: SDGR +25.5%

September 14 was $17.5B with 67% calls. This session is larger and even.

Neutral premium (spreads, hedges, two-sided prints) is not directional. Tone is the bullish-versus-bearish gap, not the neutral bucket.

Session tone for September 17: Neutral $12.6B, bullish $5.5B, bearish $5.3B

Same run, Step 1. Neutral is the largest bucket. Captured in the test app on September 18, 2026.

Glance, one reading per axis:

Axis	Symbol	Reading
Most option premium	AMD	$1.7B
Largest Net DEX	FRO	+4M shares-equiv.
Largest Net DEI magnitude	FRO	1100%
Highest IV rank	GS	73 / 100
Index gamma regime	SPX	Negative

Leaders: AMD, SPCX, and MU at $1.7B

Top names by option premium on September 17, with AMD, SPCX, and MU tied at $1.7B Bullish

Test app, Step 2, session 2026-09-17. Color is net bias on that name, not a forecast. Captured September 18, 2026.

Top of the book:

Symbol	Premium	Call	Put	Net bias
AMD	$1.7B	$1.4B	$350M	Bullish
SPCX	$1.7B	$440M	$1.3B	Bullish
MU	$1.7B	$1.0B	$634M	Bullish
TSLA	$1.3B	$782M	$549M	Mixed
SNDK	$917M	$589M	$328M	Bearish
INTC	$682M	$501M	$181M	Mixed

SPCX is almost all puts ($1.3B of $1.7B) and still tagged Bullish. Call share is not the same field as net bias.

First recorded window: 09:30, $2.9B. Timing alone does not prove intent.

Largest Net DEI: FRO 1100%, associated Net DEX Positive (+4M shares-equivalent). DEI is unsigned magnitude versus typical volume; DEX is a separate signed classification. Neither proves trader identity or dealer inventory.

Highest IV rank among active names: GS 73, 30-day IV 36.6%. IV rank is where that name's 30-day implied vol sits in its own past year.

Index GEX: SPX Negative −$23.11B

Index GEX backdrop for September 17: SPX −23.11 Negative, NDX +16.26 Positive

Test app, Step 6, session 2026-09-17. GEX is prior-close structure (T+1) under the product dealer-sign convention. Captured September 18, 2026.

Index	Net GEX ($B)	Regime
SPX	−23.11	Negative
NDX	+16.26	Positive
IWM	−4.41	Negative
SPY	+3.1	Positive
QQQ	+2.35	Positive
DIA	−0.08	Negative

SPX is still the largest absolute print, and still Negative. NDX, SPY, and QQQ are Positive on this snapshot. September 14 had SPX at −$87.61B with SPY and QQQ also Negative. Negative GEX here is modeled structure, not observed dealer inventory. See Negative GEX is session risk, not a trade.

Headline name: AMD at $545

AMD headline cards: last $545, $1.7B premium, 80% calls, 16% bullish, 64% average IV

Test app, Step 8, session 2026-09-17. Headline name is the heaviest premium, not the biggest percent mover. Captured September 18, 2026.

AMD on this run:

Last: $545
Option premium: $1.7B
Call share: 80%
Bullish share: 16%
Average IV on traded contracts: 64%

Biggest prints (as the recap listed them):

Time	Type	Strike	Expiry	Premium	Sentiment
10:18	CALL	150	2028-01-21	$13M	NEUTRAL
13:37	PUT	700	2027-01-15	$9M	BULLISH
12:32	CALL	550	2026-11-20	$8M	BULLISH
12:32	CALL	750	2027-06-17	$8M	BEARISH
12:25	CALL	550	2026-11-20	$8M	NEUTRAL

AMD biggest prints on September 17, led by a $13M Neutral 150-call

Same run, Step 8 prints table. The largest AMD print is Neutral. Captured September 18, 2026.

The largest AMD print is Neutral. 80% call share on AMD is not the same as a 16% bullish tape on AMD.

Movers: SDGR +25.5%

The recap's bottom line and Step 7 key result print the same mover this session: SDGR, up 25.5%.

Biggest movers on September 17, led by SDGR up

Test app, Step 7, session 2026-09-17. intraday_pct is an in-tape first-to-last underlying-price proxy. Captured September 18, 2026.

CYPH is the second-largest up bar. Movers are not intent.

What this session is evidence of

Question	Recap on Sep 17	Clock
How large was the single-name tape?	$23.3B, 50% calls / 50% puts	Session premium
Did the tape lean?	Balanced 23% vs 23%; Neutral $12.6B	Session sentiment
Where did the dollars go?	AMD / SPCX / MU $1.7B each, all Bullish	Session leaders
When did premium arrive?	First window 09:30 $2.9B	30-minute buckets
What was index GEX?	SPX −$23.11B Negative; NDX +$16.26B Positive	T+1 snapshot
What did AMD print?	Last $545, 80% calls, largest print 150C Jan-28 $13M Neutral	Headline name + tape
Biggest mover?	SDGR +25.5% (bottom line and Step 7)	Session movers

One session is not a trend. Proxies (intraday_pct, simplified GEX) are descriptive estimates, not price forecasts.

Reproduce the findings

Open Daily Market Recap and lock session Sep 17, 2026 (or open market-recap~2026-09-17).
Record the KPI strip: total premium, call/put share, bullish/bearish share, and the Bottom line sentence.
Step 2: confirm AMD, SPCX, and MU at $1.7B, and that SPCX is put-heavy while tagged Bullish.
Step 6: confirm SPX −23.11 Negative and NDX +16.26 Positive.
Step 7 and Step 8: write down SDGR +25.5%, then the AMD 10:18 150C Neutral print.
Stop before "therefore buy AMD" or "therefore the next session stays negative GEX."

TradingFlow App Home → Cookbooks → Daily Market Recap for the session lock.

Learn more

Gamma exposure · Option flow · Zero DTE

这是 Daily Market Recap 对 2026 年 9 月 17 日 完整会话的读数。不是交易建议。

同一份报告里有两套时钟：

当日成交带 — 单票（STOCK）权利金、情绪、时间分布和涨跌幅，来自 AggregatedOptionTrades。
TradingFlow GEX / IV — 前收盘的期权链和元数据快照（T+1）。它不会重算盘中 live 0DTE 账本。

这一天均衡：23% 看多 vs 23% 看空，单票权利金 $23.3B，认购/认沽各 50%。权利金顶部三个名字并列：AMD、SPCX、MU 各 $1.7B，标签都是 Bullish。指数 GEX 在 SPX 上是负，−$23.11B。这就是发现。

9 月 17 日会话示意：233 亿美元单票成交带，23/23 均衡，AMD 17 亿美元看多，SPX GEX 为负

成交带对 T+1 结构。情绪和权利金是当日。GEX 是前收盘。两行都不是预测。

有权限的读者可以打开 Daily Market Recap，或带日期的一次运行 market-recap~2026-09-17。可能需要登录和符合条件的试用或订阅。

复盘印了什么

Daily Market Recap 页头：2026 年 9 月 17 日，总权利金 233 亿美元，认购 50%，认沽 50%，看多 23% vs 看空 23%

测试应用，官方 Daily Market Recap，会话 2026-09-17。KPI 条是当日成交带。截于 2026 年 9 月 18 日。

这次运行：

会话：2026 年 9 月 17 日（最近一个完整会话）
总权利金：$23.3B（单票）
认购：50% · 认沽：50%
看多：23% · 看空：23%
语气：balanced（均衡）
最大情绪桶：NEUTRAL $12.6B（看多 $5.5B，看空 $5.3B）
最重的名字：AMD $1.7B
最大涨跌：SDGR +25.5%

9 月 14 日是 $17.5B，认购 67%。这一天更大，也更均。

中性权利金（价差、对冲、双边成交）不是方向。语气看的是看多对看空的缺口，不是中性桶。

9 月 17 日会话语气：中性 126 亿美元，看多 55 亿，看空 53 亿

同一次运行，第 1 步。中性是最大的桶。截于测试应用，2026 年 9 月 18 日。

一眼看完，每个轴只取最大的一项：

轴	标的	读数
最多权利金	AMD	$1.7B
最大 Net DEX	FRO	+4M 股当量
最大 Net DEI 幅度	FRO	1100%
最高 IV rank	GS	73 / 100
指数 gamma 环境	SPX	Negative

领涨名字：AMD、SPCX、MU 各 $1.7B

9 月 17 日按权利金排序的头部名字，AMD、SPCX、MU 并列 17 亿美元 Bullish

测试应用，第 2 步，会话 2026-09-17。颜色是该名字的 net bias，不是预测。截于 2026 年 9 月 18 日。

账本顶部：

标的	权利金	认购	认沽	Net bias
AMD	$1.7B	$1.4B	$350M	Bullish
SPCX	$1.7B	$440M	$1.3B	Bullish
MU	$1.7B	$1.0B	$634M	Bullish
TSLA	$1.3B	$782M	$549M	Mixed
SNDK	$917M	$589M	$328M	Bearish
INTC	$682M	$501M	$181M	Mixed

SPCX 几乎全是认沽（$1.7B 里有 $1.3B），标签仍是 Bullish。认购占比和 net bias 不是同一个字段。

第一个记录窗口：09:30，$2.9B。时间分布单独不能证明意图。

最大 Net DEI：FRO 1100%，对应的 Net DEX 是 Positive（+4M 股当量）。DEI 是相对典型成交量的无符号幅度；DEX 是另一套带符号分类。两者都不能证明交易者身份或做市商库存。

活跃名字里最高 IV rank：GS 73，30 日 IV 36.6%。IV rank 是该名字 30 日隐含波动率在自己过去一年里的位置。

指数 GEX：SPX 负，−$23.11B

9 月 17 日指数 GEX 背景：SPX −23.11 为负，NDX +16.26 为正

测试应用，第 6 步，会话 2026-09-17。GEX 是前收盘结构（T+1），按产品的做市商符号约定。截于 2026 年 9 月 18 日。

指数	Net GEX（$B）	环境
SPX	−23.11	Negative
NDX	+16.26	Positive
IWM	−4.41	Negative
SPY	+3.1	Positive
QQQ	+2.35	Positive
DIA	−0.08	Negative

SPX 仍是绝对值最大的一笔，也仍是 Negative。NDX、SPY、QQQ 在这张快照上是 Positive。9 月 14 日 SPX 是 −$87.61B，SPY 和 QQQ 也是负。这里的负 GEX 是 模型结构，不是观察到的做市商库存。见负 GEX 是会话风险，不是交易。

头条名字：AMD，现价 $545

AMD 头条卡片：现价 545 美元，权利金 17 亿美元，认购 80%，看多 16%，平均 IV 64%

测试应用，第 8 步，会话 2026-09-17。头条名字是权利金最重的，不是涨跌幅最大的。截于 2026 年 9 月 18 日。

这次运行上的 AMD：

现价：$545
期权权利金：$1.7B
认购占比：80%
看多占比：16%
成交合约平均 IV：64%

最大的几笔（按复盘列出的顺序）：

时间	类型	行权价	到期	权利金	情绪
10:18	CALL	150	2028-01-21	$13M	NEUTRAL
13:37	PUT	700	2027-01-15	$9M	BULLISH
12:32	CALL	550	2026-11-20	$8M	BULLISH
12:32	CALL	750	2027-06-17	$8M	BEARISH
12:25	CALL	550	2026-11-20	$8M	NEUTRAL

9 月 17 日 AMD 最大成交，第一笔是 1300 万美元的 Neutral 150 认购

同一次运行，第 8 步成交表。AMD 最大的一笔是 Neutral。截于 2026 年 9 月 18 日。

AMD 最大的一笔是 Neutral。AMD 上 80% 的认购占比，不等于 AMD 是 16% 的看多成交带。

涨跌幅：SDGR +25.5%

这一天复盘的页头和第 7 步关键结果印的是同一个涨跌：SDGR，上涨 25.5%。

9 月 17 日最大涨跌，SDGR 领涨

测试应用，第 7 步，会话 2026-09-17。intraday_pct 是成交带里标的价从第一笔到最后一笔的代理。截于 2026 年 9 月 18 日。

CYPH 是第二大的上涨柱。涨跌幅不是意图。

这一会话能证明什么

问题	复盘在 9 月 17 日	时钟
单票成交带有多大？	$23.3B，认购/认沽各 50%	当日权利金
成交带有没有偏向？	均衡 23% vs 23%；中性 $12.6B	当日情绪
钱去了哪？	AMD / SPCX / MU 各 $1.7B，都是 Bullish	当日头部
权利金什么时候到？	第一个窗口 09:30 $2.9B	30 分钟桶
指数 GEX 是什么？	SPX −$23.11B Negative；NDX +$16.26B Positive	T+1 快照
AMD 印了什么？	现价 $545，80% 认购，最大一笔 150C Jan-28 $13M Neutral	头条名字 + 成交带
最大涨跌？	SDGR +25.5%（页头和第 7 步一致）	当日涨跌

一个会话不是趋势。代理指标（intraday_pct、简化 GEX）是描述性估计，不是价格预测。

复现这些发现

打开 Daily Market Recap，锁会话 2026 年 9 月 17 日（或打开 market-recap~2026-09-17）。
记下 KPI 条：总权利金、认购/认沽占比、看多/看空占比，以及 Bottom line 那句话。
第 2 步：确认 AMD、SPCX、MU 都在 $1.7B，并且 SPCX 认沽很重、标签仍是 Bullish。
第 6 步：确认 SPX −23.11 Negative，NDX +16.26 Positive。
第 7 步和第 8 步：记下 SDGR +25.5%，再记下 AMD 10:18 150C 的 Neutral 成交。
在「所以应该买 AMD」或「所以下一会话会继续负 GEX」之前停笔。

TradingFlow App Home → Cookbooks → Daily Market Recap 锁会话。

延伸

Gamma exposure · Option flow · Zero DTE

Tags#Daily Market Recap #Cookbooks #option flow #gamma exposure #AMD #SPX #Rank

2026-09-14Market Analysis

September 14 Recap: Balanced Tape, MU $2B, SPX GEX Negative

Daily Market Recap on the completed September 14 session printed $17.5B of single-name premium, 67% in calls, with tone balanced at 21% bullish vs 21% bearish. MU absorbed $2.0B mixed. SPX GEX was Negative at −$87.61B.

2026-09-09Market Analysis

September 9 Findings: Close Sat on 762 / 7635

Rank Symbols on the completed September 9 session shows SPY closing 762.40 on the $762 0DTE put wall, under the $763 top. SPXW opened at the high, never retook it, and closed 7636.40 on the 7635 0DTE top. Both books were negative.

2026-09-07Market Analysis

Week of September 1: The Bounce Ran 761 to 7750, Then Sat on 770 / 7720

Four Rank sessions, one corridor. SPY closed 761.60 on September 1, sat on 765 then 773, and finished the week on the $770 0DTE top. SPX tagged 7757 Thursday and closed Friday under 7720. Friday GEX was negative, and 0DTE was 42.9% of SPY gross.

September 17 Recap: Balanced Tape, AMD $1.7B, SPX GEX Negative

What the recap printed

Leaders: AMD, SPCX, and MU at $1.7B

Index GEX: SPX Negative −$23.11B

Headline name: AMD at $545

Movers: SDGR +25.5%

What this session is evidence of

Reproduce the findings

Learn more

复盘印了什么

领涨名字：AMD、SPCX、MU 各 $1.7B

指数 GEX：SPX 负，−$23.11B

头条名字：AMD，现价 $545

涨跌幅：SDGR +25.5%

这一会话能证明什么

复现这些发现

相关阅读

延伸

Related Articles

September 14 Recap: Balanced Tape, MU $2B, SPX GEX Negative

September 9 Findings: Close Sat on 762 / 7635

Week of September 1: The Bounce Ran 761 to 7750, Then Sat on 770 / 7720

What the recap printed

Leaders: AMD, SPCX, and MU at $1.7B

Index GEX: SPX Negative −$23.11B

Headline name: AMD at $545

Movers: SDGR +25.5%

What this session is evidence of

Reproduce the findings

Related reading

Learn more

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September 14 Recap: Balanced Tape, MU $2B, SPX GEX Negative9 月 14 日复盘：均衡成交，MU $2B，SPX 负 GEX

September 9 Findings: Close Sat on 762 / 76359 月 9 日盘面：收盘坐在 762 / 7635

Week of September 1: The Bounce Ran 761 to 7750, Then Sat on 770 / 77209 月 1 日当周：反弹从 761 跑到 7750，收在 770 / 7720

September 14 Recap: Balanced Tape, MU $2B, SPX GEX Negative

September 9 Findings: Close Sat on 762 / 7635

Week of September 1: The Bounce Ran 761 to 7750, Then Sat on 770 / 7720