Daily Forecast 2026-08-19

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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	$717.51	-1.69%	22.6 (41st pctile)	-2.13B flip 721.2	1.28% (0.78–2.16)
SPY	$767.45	-0.68%	15.8 (21st pctile)	-3.77B flip 769.9	0.77% (0.45–1.36)

QQQ RSI(2)10 oversold

QQQ vs 200-day+10.1%

QQQ GammaDealers short gamma ($-2.13B per 1% move), flip 721.2 sits -0.7% above 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	15.84	21% pctile · Near median	13.5 ─ median 17.2 ─ 31.1	2026-08-18
VXN · QQQ	22.56	41% pctile · Near median	17.2 ─ median 23.3 ─ 33.5	2026-08-18

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 2026-08-18 的日线（距今约 13 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	Normal	0.77%	0.45% ~ 1.36%	Slightly below normal
A normal day with no particular signal. Run your usual parameters; no volatility-driven adjustment needed.
QQQ	Normal	1.28%	0.78% ~ 2.16%	Slightly below normal
A normal day with no particular signal. Run your usual parameters; no volatility-driven adjustment needed.

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 0.77% above means the day's high and low are expected to differ by about 0.77%.
· 80% interval:on 8 days out of 10 the actual value lands between 0.45% and 1.36%; 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 0.49, model refits on every run.

ΓGamma Map

Symbol	Spot	Net GEX ($B per 1%)	Regime	Zero-gamma flip	Call wall	Put wall	Pin
QQQ	$718.76	-1.14B	Dealers short gamma	$722.09 (spot below)	$722 +0.45% · OI 3,838	$716 -0.38% · OI 2,164	—
SPY	$770.01	-0.04B	Dealers short gamma	$770.04 (spot below)	$775 +0.65% · OI 7,564	$770 -0.00% · OI 6,044	—

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 (2026-08-18, QQQ $717.51): session -1.69% · 5-day -0.13% · vs 200-DMA +10.1% · below 52-week high -3.8% · RSI2=10 · VIX 15.8 · policy rate 3.63% (1-year -0.70)

Closest analog 2025-11-04 (distance 0.41): session -2.03% · 5-day -2.16% · vs 200-DMA +15.1% · below 52-week high -2.6% · RSI2=17 · VIX 19.0 · policy rate 3.87% (1-year -0.96)
What followed: next day +0.65% · 5-day +0.37% · 20-day +0.69%

Side by side | 2026-08-18 (prior session) -1.69% ↔ 2025-11-04 -2.03%; today maps to the day after 2025-11-04, which was +0.65% (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
2025-11-04	0.41	-2.03%	+0.65%	+0.37%	17	+0.69%
2025-12-12	0.44	-1.91%	-0.50%	+0.56%	6	+2.06%
2025-08-19	0.51	-1.36%	-0.59%	+0.58%	3	+3.64%
2018-05-15	0.51	-1.11%	+0.66%	+0.18%	21	+4.74%
2025-02-03	0.51	-0.80%	+1.23%	+2.15%	17	-4.35%

Top-20 analog statistics (deduplicated — far more reliable than any single day):
Next day mean +0.23% (up 60% of the time, range -1.3% to +1.4%) · 5-day +0.83% (70%) · 20-day +2.15% (85%)
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 1999-03-22–2026-08-18 (6895 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 are the major US economic data releases and Federal Reserve events between 2026-08-19 and 2026-08-24 (ET) that impact the broader US stock market:

FOMC Meeting Minutes 08-19 Wednesday 14:00 ET — The Federal Reserve will release the minutes from its July 28-29 FOMC meeting, providing insights into the committee's discussion and the rationale behind their decision to hold rates steady, especially given the three dissenting votes for a rate hike.

🎯9:00 Forecast

9:00 premarket price$null (vs prior close —, Prev close $717.51)

LeanBase — no strong signal, lean is small

P(close above 9:00 price)56%

Expected close—

Expected high—

Expected low—

Expected range—

Gatebase

Features used4 (Missing inputs: gap|oi)

Model versionv0.3-gates · 2026-08-19 09:15:48 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 $null · range $null–$null	Open $720.39 · High $721.50 · Low $712.61 · Close $716.08 (Close vs 9:00 price —)

Direction✗ miss

Range inside band—

Expected high touched—

Expected low touched—

Brier0.310 Brier (naive) 0.310

Close errornull% Naive error null%

Running tally · 11 calls scored · direction hit rate 2/11 · avg Brier vs naive 0.292 / 0.289

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

🌡Sentiment

NAAIM Manager Equity Exposure · week of 2026-07-29

79.7 ↓ from 84

All-history band: Neutral-bullish (the usual range) (range roughly −5 to 120)
1-year percentile 19.2% · since-inception percentile 31.2% (144 weeks)

How to read: a high percentile means managers are broadly fully invested with little room to add; a low one means broad caution and room to buy back in. Contrarian predictive power is weak (4-week horizon) and the sample has never been tested through a bear market — atmosphere only, not a signal.

AAII Retail Sentiment Survey · week of 2026-08-12

Bull−bear spread -3.2 bulls 34.7% / bears 37.9%

39-year percentile 29.4% · 5-year percentile 47.3% (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

56.3 greed

prior close 54.4 · one week ago 62.9 · one month ago 37.2
Percentile since 2022 60.7%

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 · 2026-08-18

0.64 index P/C 1.12 · total P/C 0.95

Percentile since 2023 62.3% (median over the same period 0.6)
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 76.5 / 100 · Posture: Tailwind (2026-08-19)

Category	Value	Score	Note
Macro		17 / 20
└ GDP growth (ann.)	1.5	3 / 5
└ Core CPI YoY	2.5	5 / 5
└ Unemployment	4.1	5 / 5
└ PMI (mfg+svc avg)	54.9	4 / 5
Monetary policy		17 / 25
└ Real rate (FFR − core CPI)	1.25	8 / 8	neutral zone 0–1.5%
└ Policy stance & guidance	model judgment	5 / 10	model judgment
└ Communication vs market	model judgment	4 / 7	model judgment
Earnings		16 / 20
└ EPS growth YoY %	50.4	5 / 5
└ Forward P/E	20	4 / 8	10-yr avg ≈ 17–18
└ Earnings quality	—	4 / 4	model judgment
└ EPS beat rate %	86	3 / 3
Liquidity		9 / 10
└ IG credit spread OAS %	0.99	4 / 4
└ M2 YoY %	5.53	3 / 3	overheating also penalised
└ Financial conditions	—	2 / 3	proxied by spreads + M2
Policy & geopolitics		9 / 15
└ Domestic policy risk	model judgment	6 / 7.5	model judgment
└ Geopolitical risk	model judgment	3 / 7.5	model judgment
Sentiment & technicals		8.5 / 10
└ VIX regime	15.84	3 / 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	2.5 / 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.