October 1 Recap: Balanced Tape, MU $3.5B, SPX GEX Negative
Daily Market Recap on the completed October 1 session printed $17.1B of single-name premium, 60% in calls, with tone balanced at 23% bullish vs 23% bearish. MU led a fifth session running at $3.5B (Bullish). SPX GEX was Negative at −$37.95B, with SPY and QQQ Negative too, and Rank showed SPY closing on its $764 0DTE top.
This is a Daily Market Recap readout of the completed October 1, 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 $17.1B of single-name premium and 60% of it in calls. The heaviest name was MU ($3.5B, Bullish) for the fifth session running, its largest premium in that stretch. Index GEX was Negative on SPX at −$37.95B, and SPY (−$11.95B) and QQQ (−$6.2B) were Negative too. On Rank, SPY closed 764.00 exactly on its $764 0DTE top, and SPXW closed 7,666.40, 1.40 over its 7,665 top. That is the finding.
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~2026-10-01. Sign-in and an eligible trial or subscription may be required.
What the recap printed
Test app, official Daily Market Recap, session 2026-10-01. KPI strip is the session tape. Captured October 1, 2026.
On this run:
- Session: Oct 1, 2026 (latest completed)
- Total premium: $17.1B (single-name)
- Call premium: 60% · put premium: 40%
- Bullish: 23% · bearish: 23%
- Tone: balanced
- Largest sentiment bucket: NEUTRAL $9.2B (bullish $4.0B, bearish $4.0B)
- Heaviest name: bottom line and glance MU $3.4B; leaders table and headline cards MU $3.5B
- Bottom-line mover: XRPN +47.2%
The prior session, September 30, printed $14.0B, 67% calls, and leaned bullish 24% vs 22%. This session carried more premium, a lower call share, and no lean. $17.1B is the largest single-name tape in this digest since September 18 ($20.8B).
Neutral premium (spreads, hedges, two-sided prints) is not directional. Tone is the bullish-versus-bearish gap, and here there is none: bullish and bearish both print $4.0B.
Same run, Step 1. Neutral is more than half the tape. Bullish and bearish are equal. Captured in the test app on October 1, 2026.
Same run, Bottom line and glance table. Captured in the test app on October 1, 2026.
Glance, one reading per axis:
| Axis | Symbol | Reading |
|---|---|---|
| Most option premium | MU | $3.4B |
| Largest Net DEX | INTC | +0M shares-equiv. |
| Largest Net DEI magnitude | MU | 157% |
| Highest IV rank | GS | 69 / 100 |
| Index gamma regime | SPX | Negative |
The Net DEX row printed INTC +0M at the glance's display precision; quote it as printed and do not read a direction into it.
Leaders: MU $3.5B Bullish
Test app, Step 2, session 2026-10-01. Color is net bias on that name, not a forecast. Captured October 1, 2026.
Top of the book:
| Symbol | Premium | Call | Put | Net bias |
|---|---|---|---|---|
| MU | $3.5B | $2.4B | $1.1B | Bullish |
| SNDK | $811M | $514M | $297M | Bullish |
| TSLA | $767M | $472M | $294M | Mixed |
| NVDA | $754M | $478M | $276M | Mixed |
| META | $518M | $363M | $155M | Mixed |
| AMD | $483M | $325M | $157M | Bullish |
The bottom line and glance print MU at $3.4B; the leaders table and headline cards print $3.5B. Quote both. Either way, MU is more than four times the next name, SNDK ($811M).
Further down the table, two names are almost all puts: LULU ($278M of $283M) and NFLX ($200M of $244M), both tagged Bearish. AAPL, AMZN, and GOOGL are also tagged Bearish.
First recorded window: 09:30, $2.3B. Timing alone does not prove intent.
Largest Net DEI: MU 157%, associated Net DEX Positive. Glance and Step 4 agree. MU leads both premium and DEI this session. 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 69, 30-day IV 35.2%. AAPL (58), AMZN (55), INTC (51), and GOOG (48) follow.
Same recap, Step 5. IV rank places each name's 30-day implied vol within its own past year. Captured in the test app on October 2, 2026.
MU is at 17 on the same chart, while its traded contracts averaged 72% IV (Step 8). IV rank compares a name's 30-day IV with its own past year; average IV on traded contracts is a different field.
Index GEX: SPX Negative −$37.95B, NDX the only Positive
Test app, Step 6, session 2026-10-01. GEX is prior-close structure (T+1) under the product dealer-sign convention. Captured October 2, 2026.
| Index | Net GEX ($B) | Regime |
|---|---|---|
| SPX | −37.95 | Negative |
| SPY | −11.95 | Negative |
| NDX | +6.51 | Positive |
| QQQ | −6.2 | Negative |
| IWM | −0.32 | Negative |
| DIA | −0.03 | Negative |
SPX is more negative than on September 30 (−$17.39B → −$37.95B), its most negative reading in this digest since September 18 (−$63.48B). SPY went from −$1.44B to −$11.95B, and QQQ from +$1.6B Positive to −$6.2B Negative. NDX is the only Positive row, at +$6.51B. QQQ and NDX follow the same index through separate option books, and on this snapshot they print opposite regimes. Those are snapshots one session apart, not a measured path. Negative GEX here is modeled structure, not observed dealer inventory. See Negative GEX is session risk, not a trade.
Revised October 2. The first version of this edition used a run from about an hour after the close, which printed a different index snapshot (SPX −$29.54B, SPY +$0.84B Positive, QQQ +$1.55B Positive). Runs on the morning of October 2 print the table above, and the IV rank chart moved slightly (GS still 69). The session tape, leaders, MU cards, prints, and movers did not change. GEX and IV are T+1 snapshots; read them after they settle.
Rank: SPY closed on its 0DTE top, SPXW just over it
The recap's index row is one number per index. Rank shows where that structure sat around price. Same session, Gamma Exposure, horizon Today · 0DTE. The recap's SPY row (−$11.95B) and Rank's SPY all-expiration total (−$18.7B) are different calculations; quote each with its source.
Session OHLC (Rank daily bar):
| Symbol | Open | High | Low | Close | Prior close (Sep 30) |
|---|---|---|---|---|---|
| SPY | 764.40 | 765.60 | 758.80 | 764.00 | 764.20 |
| SPXW | 7,666.50 | 7,684.80 | 7,616.80 | 7,666.40 | 7,670.80 |
SPY 0DTE: close 764.00 on the $764 top
Test app, session 2026-10-01, horizon Today · 0DTE. Callout 1 is the lock: negative gamma, 0DTE 32.0% of all-expiry gross. Callout 2 is the close on the $764 strike. Structure built October 1, 5:40 PM ET. Captured October 3, 2026.
On this snapshot:
- Environment: Negative
- Net GEX: −$10.5B (gross $19.6B)
- Put wall / magnet / 0DTE top / max pain: $764.00, at spot (74.4% of selected-range gross GEX)
- Call wall: $765.00 (6.7%)
- Below spot: no structural level in this scope
- Flip: $762.91
- 0DTE share of all-expiration gross: 32.0%
- Close: $764.00
Three quarters of this 0DTE book's selected-range gross sits on $764, and the close printed exactly there. The low (758.80) ran $4.11 under the flip; the high (765.60) cleared the $765 call wall by 60 cents. All-expiration SPY is also Negative (net −$18.7B, gross $61.3B), with the call wall at $765, put wall / magnet / 0DTE top at $764, max pain $760, and flip $765.94.
SPXW 0DTE: close 7,666.40, 1.40 over the 7,665 top
Cash SPX 0DTE lives on SPXW.
Same session, SPXW, horizon Today · 0DTE. Callout 1 is the lock: negative gamma, 0DTE 19.4% of all-expiry gross. Callout 2 is the close versus the 7,665 top, the 7,670 call wall, and the flip above. Captured in the test app on October 3, 2026.
On this snapshot:
- Environment: Negative (net GEX −$23.7B, gross $41.7B)
- Put wall / magnet / 0DTE top: $7,665 (28.8% of selected-range gross GEX)
- Call wall: $7,670 (17.9%)
- Flip: $7,680.85
- 0DTE share of all-expiration gross: 19.4%
- Close: 7,666.40
The close was 1.40 over the 7,665 top and 14.45 under the flip, which sits above spot in this book. The low (7,616.80) was 48.20 under the top. All-expiration SPXW is Negative (net −$18.7B, gross $214.7B), with the same 7,665 top, max pain 7,690, and flip 7,672.52.
Both books were Negative and both closes sat on the T+1 top: the shape of September 9, not the Positive shape of September 25 and October 2, where the close sat just under the top. That describes one session against T+1 structure; it is not a pin forecast.
Rank chapter added October 3, 2026, after this session's Rank structure became readable on the test app.
Headline name: MU at $1,098
Test app, Step 8, session 2026-10-01. Headline name is the heaviest premium, not the biggest percent mover. Captured October 1, 2026.
MU on this run:
- Last: $1,098
- Option premium: $3.5B
- Call share: 69%
- Bullish share: 19%
- Average IV on traded contracts: 72%
Five sessions of MU at the top of the recap:
| Session | Premium | Net bias | Last | Avg IV |
|---|---|---|---|---|
| Sep 25 | $1.7B | Mixed | $1,082 | 75% |
| Sep 28 | $1.6B | Bearish | $1,054 | 79% |
| Sep 29 | $1.7B | Bearish | $1,065 | 93% |
| Sep 30 | $2.3B | Bullish | $1,069 | 105% |
| Oct 1 | $3.5B | Bullish | $1,098 | 72% |
MU premium rose about 52% from September 30 to the largest reading in the stretch, while average IV on traded MU contracts fell 33 points, from 105% to 72%. The last price is the highest of the five sessions. Bullish share on the cards is 19%, under a Bullish net bias tag. Net bias is not bullish share.
Biggest prints (as the recap listed them):
| Time | Type | Strike | Expiry | Premium | Sentiment |
|---|---|---|---|---|---|
| 09:59 | CALL | 1,200 | 2026-12-18 | $61M | NEUTRAL |
| 11:36 | PUT | 1,200 | 2028-01-21 | $41M | NEUTRAL |
| 11:36 | CALL | 1,200 | 2028-01-21 | $18M | NEUTRAL |
| 09:59 | CALL | 1,500 | 2026-12-18 | $18M | NEUTRAL |
| 09:59 | CALL | 1,150 | 2026-10-16 | $15M | NEUTRAL |
Same run, Step 8 prints table. Eleven of twelve rows are Neutral. Captured October 1, 2026.
The twelve listed MU prints add up to $209M, about 6% of MU's $3.5B. Eleven are tagged Neutral and one Bearish. Two minutes stand out: at 09:59, three calls (1,200 and 1,500 Dec-18, 1,150 Oct-16) for $94M; at 11:36, three 1,200-strike prints (Jan-2028 put and call, Jan-2027 put) for $70M. The recap lists them as separate prints; it does not say any of them belong together, and the tags do not prove who bought or sold. The largest print is $61M, against $10M on September 30.
Movers: XRPN +47.2%
- Bottom line: "the day's biggest mover was XRPN, up 47.2%."
- Step 7 key result (this run): leading mover XRPN, +47.3%, direction Up.
Test app, Step 7, session 2026-10-01. intraday_pct is an in-tape first-to-last underlying-price proxy. Captured October 1, 2026.
The two fields agree on XRPN, one tenth of a point apart in rounding. The bottom line always names the day's largest gain; Step 7's key result can name the largest gain or the largest loss on different runs of the same session, as it did for September 28 and September 29. Here the largest down bar is NKTR. Movers are not intent.
What this session is evidence of
| Question | Recap on Oct 1 | Clock |
|---|---|---|
| How large was the single-name tape? | $17.1B, 60% calls | Session premium |
| Did the tape lean? | Balanced 23% vs 23%; bullish and bearish both $4.0B | Session sentiment |
| Where did the dollars go? | MU $3.5B Bullish (glance $3.4B); SNDK $811M Bullish; TSLA $767M Mixed | Session leaders |
| When did premium arrive? | First window 09:30 $2.3B | 30-minute buckets |
| Largest Net DEI? | MU 157%, Net DEX Positive (glance and Step 4 agree) | Session DEI |
| Highest IV rank? | GS 69, 30-day IV 35.2%; MU 17 | T+1 snapshot |
| What was index GEX? | SPX −$37.95B Negative; SPY −$11.95B; QQQ −$6.2B; NDX +$6.51B the only Positive | T+1 snapshot |
| Where did SPY close versus same-day structure? | 764.00, on the $764 put wall / 0DTE top (74.4%); Negative | T+1 0DTE GEX + session OHLC |
| Where did SPXW close versus same-day structure? | 7,666.40, 1.40 over the 7,665 top (28.8%); flip 7,680.85 above | T+1 0DTE GEX + session OHLC |
| What did MU print? | Last $1,098, 69% calls, 19% bullish, avg IV 72%; twelve largest prints $209M, top $61M | Headline name + tape |
| Biggest mover? | Bottom line XRPN +47.2%; Step 7 key this run XRPN +47.3% | Two recap fields |
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 Oct 1, 2026 (or open market-recap~2026-10-01).
- Record the KPI strip: total premium, call/put share, bullish/bearish share, and the Bottom line sentence.
- Step 2: confirm MU $3.5B Bullish at the top, note MU is $3.4B in the glance, and find LULU and NFLX near the bottom of the table.
- Step 5 and Step 6: confirm GS 69 at the top of IV rank, SPX −37.95 Negative, SPY −11.95 Negative, and NDX +6.51 Positive.
- Step 7 and Step 8: write down the bottom line's XRPN +47.2% and Step 7's key for your run, then the MU 09:59 and 11:36 prints.
- Open SPY Gamma Exposure → horizon Today · 0DTE, then SPXW. Record environment, walls, flip, and the daily OHLC. Sign-in and a paid entitlement may be required.
- Stop before "therefore buy MU" or "therefore the next session stays negative GEX."
TradingFlow App Home → Cookbooks → Daily Market Recap for the session lock.
Related reading
- September 30 Recap: Leaned Bullish, MU $2.3B, SPX GEX Negative
- September 29 Recap: Leaned Bearish, MU $1.7B, SPX GEX Negative
- September 28 Recap: Leaned Bearish, MU $1.6B, SPX GEX Negative
- Daily Market Recap: read a full options session in Cookbooks
- Negative GEX is session risk, not a trade
Learn more
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