Daily Forecast 2026-09-21

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📋 Morning Board 📏 Range Forecast Γ Gamma Map 🕰 Analog Days 📅 Calendar 🎯 9:00 Forecast ✅ Scorecard 🌡 Sentiment 🧭 Macro Score

📋Morning Board

Symbol	Prev close	Change	VIX / VXN (pct)	GEX ($B/1%)	Expected range
QQQ	$721.45	+0.63%	19.3 (4th pctile)	+5.02B flip 715.9	0.97% (0.59–1.64)
SPY	$761.69	-0.12%	14.8 (6th pctile)	+5.00B flip 762.7	0.65% (0.38–1.15)

QQQ RSI(2)91 extreme

QQQ vs 200-day+8.9%

QQQ GammaDealers long gamma (+$5.02B per 1% move), flip 715.9 sits 1.7% below spot

How to read this · VIX

σ Volatility Indices (VIX / VXN)

VIX = S&P 500 30-day implied volatility (maps to SPY); VXN = the same measure for the Nasdaq 100 (maps to QQQ). Percentile = share of the past year (252 trading days) that closed below the current value.

Index	Current	Percentile	1-year range	As of
VIX · SPY	14.81	6% pctile · Depressed (complacency)	13.5 ─ median 17.2 ─ 31.1	2026-09-18
VXN · QQQ	19.29	4% pctile · Depressed (complacency)	17.2 ─ median 23.3 ─ 33.5	2026-09-18

CBOE official daily closes (VIX from 1990, VXN from 2009). These are closing values, not intraday — the morning brief uses the prior session's close and the evening review the current close, so the series stays consistent with history with no point-in-time bias.

📏Range Forecast

Today's Range Forecast (pre-open)

⚠ 数据陈旧：本预测基于 2026-09-18 的日线（距今约 20 天）。落盘日线可能未更新（检查 PostClose_Rebuild 任务），下面的数字不可用于今日决策。

This section answers one question only: how far price is likely to swing between the open and the close (high minus low). It does not forecast direction — the directional version has been backtested repeatedly and produced no reliable signal.

Symbol	Tier	Forecast day range	80% interval	vs last 20d
SPY	Low	0.65%	0.38% ~ 1.15%	About normal
Today is likely to be calmer than usual — price has less room to move. Selling options is favoured and normal strike width is fine. Long straddles are unfavourable today: you need a big move just to break even. Stops can be tightened somewhat.
QQQ	Low	0.97%	0.59% ~ 1.64%	About normal
Today is likely to be calmer than usual — price has less room to move. Selling options is favoured and normal strike width is fine. Long straddles are unfavourable today: you need a big move just to break even. Stops can be tightened somewhat.

How to read this table
· Forecast day range: how far today's high is from today's low, as a percentage of the current price.For example 0.65% above means the day's high and low are expected to differ by about 0.65%.
· 80% interval:on 8 days out of 10 the actual value lands between 0.38% and 1.15%; on the other 2 it falls outside. That is the honest error band — the real value may be half the forecast, or half again as large.
· Tier: days are bucketed into large / medium / small. When it says “High”, about 6 times out of 10 the day really is large, versus barely 3 in 10 for a blind guess. Good enough to size positions and choose strike width; not good enough to compute precise P&L.
· “Tier” and “vs last 20d” can look contradictory, and that is normal: the tier compares against the past several years, the right-hand column against the last 20 days. “High tier but about normal” means the recent period has itself been high-volatility — today is not exceptional, but the overall environment is jumpy and position sizing should stay cautious.
· A 10:00 intraday revision email follows, folding in the actual range and volume from the first half hour; the forecast gets sharper then.

Technical: out-of-sample R² SPY 0.51 / QQQ 0.48, model refits on every run.

ΓGamma Map

Symbol	Spot	Net GEX ($B per 1%)	Regime	Zero-gamma flip	Call wall	Put wall	Pin
QQQ	$742.99	+2.19B	Dealers long gamma	—	$750 +0.94% · OI 1,026	$722 -2.83% · OI 702	$740
SPY	$773.83	+5.93B	Dealers long gamma	$758.41 (spot above)	$775 +0.15% · OI 2,195	$772 -0.24% · OI 458	$772

Positive gamma: dealers sell rallies and buy dips, damping moves. Negative gamma: dealers chase, amplifying moves.

Walls are gamma-weighted, not raw OI. 503-day test: a NEAR call wall is real resistance and breakouts through it run shorter; a FAR call wall breaks more often (a volatility tell). Put walls show no measurable support.

DTE≤7 · Walls use the front expiry · post-close snapshot

🕰Analog Days

Prior close profile (2026-09-18, QQQ $721.45): session +0.63% · 5-day +0.92% · vs 200-DMA +8.9% · below 52-week high -3.3% · RSI2=91 · VIX 14.8 · policy rate 3.63% (1-year -0.70)

Closest analog 2019-10-11 (distance 0.40): session +1.29% · 5-day +1.22% · vs 200-DMA +5.5% · below 52-week high -2.1% · RSI2=90 · VIX 15.6 · policy rate 1.82% (1-year -0.36)
What followed: next day -0.01% · 5-day +0.30% · 20-day +5.30%

Side by side | 2026-09-18 (prior session) +0.63% ↔ 2019-10-11 +1.29%; today maps to the day after 2019-10-11, which was -0.01% (single days are mostly coincidence — the Top-20 statistics below are more reliable)

Analog (top 5)	Distance	That day	Next day	5 days on	RSI2 then	20 days on
2019-10-11	0.40	+1.29%	-0.01%	+0.30%	90	+5.30%
2025-09-05	0.40	+0.14%	+0.49%	+1.84%	82	+4.71%
2015-06-18	0.46	+1.46%	-0.72%	-0.62%	94	+2.62%
2019-12-12	0.48	+0.75%	+0.33%	+2.11%	93	+6.99%
2017-03-10	0.51	+0.42%	+0.17%	+0.23%	92	+0.44%

Top-20 analog statistics (deduplicated — far more reliable than any single day):
Next day mean +0.06% (up 50% of the time, range -0.7% to +1.1%) · 5-day -0.21% (50%) · 20-day +0.93% (60%)
Note: QQQ drifts up over time, so the unconditional probability of any given next day being positive is already about 55%. Compare the “up %” above against that baseline, not against 50%.

25 features in three equally weighted groups: price position (return / distance to moving averages / position in the 52-week range / trend slope / consecutive up-down days / gaps) + technicals (RSI2 / RSI14 / volatility / relative volume / volume trend / range / KDJ-J / Bollinger %B / MACD histogram) + environment (VIX / rate cycle / credit spreads / dollar index / oil / S&P P/E / CBOE equity P/C / AAII bull-bear spread). Weighted z-score Euclidean distance; matching pool 1999-03-22–2026-09-18 (6917 days, excluding ±60 days around the target). Narrative context, not a trading signal: after four rounds of feature engineering the Top-1 next-day directional hit rate tops out at 54.9%, still below the 57% you get by always guessing up. The data is given in full, but do not use it for direction — it answers “which historical setup does today resemble”, not “will tomorrow be up or down”.

📅Calendar

Here's a summary of major US economic data releases and Federal Reserve events between September 21, 2026, and September 26, 2026 (ET) that could impact the broader stock market:

No major economic data this week.

The FOMC meeting that concluded on September 16, 2026, resulted in a 25 basis point interest rate hike, bringing the federal funds rate to a target range of 3.75%-4.00%. Federal Reserve Chair Kevin Warsh noted that inflation remains elevated and above the Fed's 2% target. The Fed's updated economic projections show slightly higher GDP and inflation rates for 2026 compared to their June projections. The next FOMC meeting is scheduled for October 27-28, 2026.

🎯9:00 Forecast

9:00 premarket price$727.87 (vs prior close +0.91%, Prev close $721.34)

LeanBase — no strong signal, lean is small

P(close above 9:00 price)56%

Expected close$728.0

Expected high$731.3

Expected low$724.2

Expected range0.97% (0.59–1.64%)

Gatersi_high_90

Features used5 (Missing inputs: oi)

Model versionv0.3-gates · 2026-09-21 09:03:16 ET

Posted at 09:05 ET, scored at 16:45 ET. The ledger keeps every call — misses included.

✅Scorecard

Called	Actual
P(up) 56% · close $728.0 · range $724.2–$731.3	Open $727.89 · High $743.22 · Low $727.81 · Close $741.47 (Close vs 9:00 price +1.87%)

Direction✓ hit

Range inside band✗ miss 2.14% vs 0.59–1.64%

Expected high touchedyes

Expected low touchedno

Brier0.196 Brier (naive) 0.196

Close error1.86% Naive error 1.87%

Running tally · 40 calls scored · direction hit rate 18/40 · avg Brier vs naive 0.259 / 0.259

Naive baseline = "close equals 9:00 price, always 55% up".

🌡Sentiment

AAII Retail Sentiment Survey · week of 2026-09-16

Bull−bear spread -24.5 bulls 28.8% / bears 53.3%

Spread < −20 — the one extreme-bearish bucket that has historically carried any signal (4-week horizon)
39-year percentile 5.1% · 5-year percentile 13.5% (the distribution has shifted down; use the 5-year figure)

Historically a contrarian indicator, and it takes 3–4 weeks to work, not 1–2. Since 2020 the effect has broken down and at times inverted — low-weight atmosphere only.

CNN Fear & Greed Index · live

33.7 fear

prior close 29.1 · one week ago 31 · one month ago 54.7
Percentile since 2022 24.7%

Backtested: no predictive power for same-day or next-day direction (its components are that day's price action, which makes it circular). Forward absolute returns are positive from every bucket; only the magnitude differs — pure atmosphere.

CBOE Equity Put/Call · 2026-09-18

0.58 index P/C 0.98 · total P/C 0.81

Percentile since 2023 40.2% (median over the same period 0.59)
Low = retail crowding into calls (speculative heat); high = heavy put demand (defensive)

Backtested: an extremely low P/C (call mania) does not mark tops — forward returns are in fact slightly positive, the opposite of the popular claim. Atmosphere only.

All four have been backtested: none carries tradable predictive power for same-day or next-day direction. They describe the sentiment backdrop and are not a basis for buying or selling.

🧭Macro Score

Total 67 / 100 · Posture: Neutral (2026-09-21)

Category	Value	Score	Note
Macro		18 / 20
└ GDP growth (ann.)	1.5	3 / 5
└ Core CPI YoY	2.4	5 / 5
└ Unemployment	4.1	5 / 5
└ PMI (mfg+svc avg)	55	5 / 5
Monetary policy		12 / 25
└ Real rate (FFR − core CPI)	1.6	5 / 8	neutral zone 0–1.5%
└ Policy stance & guidance	model judgment	3 / 10	model judgment
└ Communication vs market	model judgment	4 / 7	model judgment
Earnings		17 / 20
└ EPS growth YoY %	28.7	5 / 5
└ Forward P/E	19.1	5 / 8	10-yr avg ≈ 17–18
└ Earnings quality	model judgment	4 / 4	model judgment
└ EPS beat rate %	86	3 / 3
Liquidity		9 / 10
└ IG credit spread OAS %	0.8	4 / 4
└ M2 YoY %	5.41	3 / 3	overheating also penalised
└ Financial conditions	—	2 / 3	proxied by spreads + M2
Policy & geopolitics		3 / 15
└ Domestic policy risk	model judgment	1.5 / 7.5	model judgment
└ Geopolitical risk	model judgment	1.5 / 7.5	model judgment
Sentiment & technicals		8 / 10
└ VIX regime	14.81	4 / 4	low = seller regime, high = oversold signals active; not directional
└ Trend (200-day, SPY+QQQ)	2	3 / 3	the only trend state that passed FDR
└ Flows / rotation / volume	model judgment	1 / 3	volume ratio + rotation dispersion + breadth; conditions, not direction

Weeks-to-months backdrop, not an overnight signal. Being forward-tested; it does not drive any order.

Full report: Morning report · Evening report

Research output, not investment advice.