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Correlation
of % moves
+13%
In sync
of periods
55%
History
daysdays · through 2026-09-10
647
These move in the same direction about 55% of the time
Their swing sizes only faintly line up (~2% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
On a log scale so equal % moves take equal vertical space — best when one series has grown much faster than the other.
What to Watch
Unusual right now
Recently tighter than usual — the pair is behaving differently than its long-run pattern.
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
55%
Headline metric
Movement correlation(i)
+13%
Based on % moves
95% CI
+5% → +20%
Likely range of correlation
Pipeline
Pipeline Summary
647 paired data points survived the daily window.
Raw input
1,254
647
Normalized
1,254
647
Prepared
1,254
647
Aligned
647
647
Invalid removed
R²(i)
2%
Variance explained
Significance
p < 0.01
Statistical confidence
Data points(i)
646
Robust
Time-Shifted Correlation
See how correlation changes when one series is offset in time. A taller bar at a non-zero shift means the two move together better when one leads the other — that's a potential lead/lag signal.
Correlation by shift
Click a bar to inspect. Range: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
+13%
No shift — both series at their actual dates.
646 overlapping points at this shift
Baseline
+13%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+13%
A non-zero peak suggests one series lines up better when shifted against the other.
Stability
How the correlation evolves over time. A stable line means the relationship is reliable; large swings signal regime-dependent behavior.
Do They Crash Together?
How these series behave when markets are rising, falling, or diverging. A correlation that holds in drawdowns is very different from one that only works in rallies.
Both Rising
-25%
61 periods · Return correlation when both series rose
Both Falling
-14%
80 periods · Return correlation when both series fell
Diverging
-6%
106 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
607
A: 607 / B: 0
Series A
Alphabet Inc. Class C Capital Stock (GOOG)
GOOG
Stock · 1,254 raw → 1,254 prepared
Series B
AtlasClear Holdings, Inc. (ATCH)
ATCH
Stock · 647 raw → 647 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
0.7836
Linear regression slope.
Intercept
-0.0130
Linear regression intercept.
Saved 4 months ago · ID: stock-atch_stock-goog_daily_5y