High/Low Breaks — Fresh Range Extremes on a ≥3% Session
Every product & ratio spread that broke to a new 21-day or 500-day high/low today on a session move of at least ±3% · each with its forward-return edge after prior same-type breaks · Data through August 31, 2026 · Updated August 31, 2026 · 6:45 PM ET
Breaks today
5
new 21d/500d extremes on ≥3%
Highs / Lows
5 / 0
up-breakouts vs down-breakdowns
500-day breaks
1
~2-year extremes (major)
21-day breaks
4
shorter-range extremes
A break is a clean signal: today's close is a new range extreme — the highest (or lowest) of the trailing 21 or 500 sessions — and
the session moved at least ±3% in that direction. A 🚀 500-day break is a ~2-year extreme (a major breakout/breakdown); a 📈 21-day break is a
shorter-range one. The interesting question is what happens next — do these extremes keep running or snap back? The Edge ★ is each instrument's own forward
return after prior same-type breaks, and Trade takes its direction from that edge (so a breakout the data says fades reads ▼ Short). Sorted 500-day first, then
by Edge; click a row for the forward-return paths.
Level:Direction:Class:
Instrument
Class
Break
Session
Price
Trade
n
5d med
21d med
21d win
Edge ★
→
Session = today's move that printed the break. Edge n = prior same-type breaks for that instrument (deduped to non-overlapping); a small n is
anecdote, not a base rate. A 500-day break is also a 21-day break — it is listed once, at the higher level. Filter Level / Direction to isolate major
breakouts (🚀 500-day highs) from breakdowns (💥 500-day lows).