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Correlation
of % moves
-11%
In sync
of periods
45%
History
daysdays · through 2026-05-11
835
These move opposite each other about 45% of the time
Their swing sizes only faintly mirror each other (~1% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
Both lines start at the same point — easy to compare when growth rates are similar.
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.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
45.4%
Headline metric
Movement correlation(i)
-11%
Based on % moves
95% CI
-17% → -4%
Likely range of correlation
Pipeline
Pipeline Summary
835 paired data points survived the daily window.
Raw input
835
1,255
Normalized
835
1,255
Prepared
835
1,255
Aligned
835
835
Invalid removed
R²(i)
1.1%
Variance explained
Significance
p < 0.01
Statistical confidence
Data points
835
Deep
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
-11%
No shift — both series at their actual dates.
834 overlapping points at this shift
Baseline
-11%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-11%
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
+23%
79 periods · Return correlation when both series rose
Both Falling
-7%
69 periods · Return correlation when both series fell
Diverging
-36%
101 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
420
A: 0 / B: 420
Series A
COR
Stock · 835 raw → 835 prepared
Series B
DDOG
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
28
Estimated crossover points between normalized spreads.
Slope
-0.2795
Linear regression slope.
Intercept
0.0014
Linear regression intercept.
Saved 2 days ago · ID: stock-cor_stock-ddog_daily_5y