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Correlation
of % moves
+39%
In sync
of periods
65%
History
daysdays · through 2026-07-09
576
These move in the same direction about 65% of the time
Their swing sizes only faintly line up (~15% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
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.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Advanced
Statistics
In sync(i)
65%
Headline metric
Movement correlation(i)
+39%
Based on % moves
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
576 paired data points survived the daily window.
Raw input
1,254
576
Normalized
1,254
576
Prepared
1,254
576
Aligned
576
576
Invalid removed
15%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
575
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
+39%
No shift — both series at their actual dates.
575 overlapping points at this shift
Baseline
+39%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+39%
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
+32%
104 periods · Return correlation when both series rose
Both Falling
+38%
86 periods · Return correlation when both series fell
Diverging
-54%
59 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
678
A: 678 / B: 0
Series A
DoorDash, Inc. Class A Common Stock (DASH)
DASH
Stock · 1,254 raw → 1,254 prepared
Series B
Reddit, Inc. (RDDT)
RDDT
Stock · 576 raw → 576 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
23
Estimated crossover points between normalized spreads.
Slope
0.7261
Linear regression slope.
Intercept
0.0020
Linear regression intercept.
Saved 3 months ago · ID: stock-dash_stock-rddt_daily_5y