🕰Analog Days 2026-09-28

The 20 most similar historical sessions across 25 features, and what followed them.

Prior close profile (2026-09-25, QQQ $744.50): session +0.46% · 5-day +3.19% · vs 200-DMA +11.9% · below 52-week high -0.4% · RSI2=78 · VIX 14.9 · policy rate 3.63% (1-year -0.46)
Closest analog 2025-07-02 (distance 0.34): session +0.70% · 5-day +1.78% · vs 200-DMA +9.5% · below 52-week high -0.1% · RSI2=70 · VIX 16.6 · policy rate 4.33% (1-year -1.00)
What followed: next day +0.98% · 5-day +0.84% · 20-day +2.58%
Side by side | 2026-09-25 (prior session) +0.46% ↔ 2025-07-02 +0.70%; today maps to the day after 2025-07-02, which was +0.98% (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
2025-07-02 0.34 +0.70% +0.98% +0.84% 70 +2.58%
2019-09-11 0.35 +0.94% +0.42% +0.05% 83 -2.70%
2025-08-13 0.37 +0.05% -0.08% -2.49% 90 +0.64%
2025-02-18 0.39 +0.23% +0.03% -4.83% 96 -12.02%
2025-09-16 0.39 -0.08% -0.20% +1.19% 88 +1.15%
Top-20 analog statistics (deduplicated — far more reliable than any single day):
Next day mean +0.11% (up 60% of the time, range -1% to +1%) · 5-day -0.26% (55%) · 20-day +0.34% (70%)
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 1999-03-22–2026-09-25 (6922 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”.

Full report: Morning report · Evening report

Archive 2026-10-09 · 2026-10-08 · 2026-10-07 · 2026-10-06 · 2026-10-05 · 2026-10-02 · 2026-10-01 · 2026-09-30 · 2026-09-29 · 2026-09-25 · 2026-09-24 · 2026-09-23 · 2026-09-22 · 2026-09-21 · 2026-09-18 · 2026-09-17 · 2026-09-16 · 2026-09-15 · 2026-09-14 · 2026-09-11

Research output, not investment advice.