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Correlation
of % moves
+55%
In sync
of periods
72%
History
daysdays · through 2026-07-09
368
These move in the same direction about 72% of the time
Their swing sizes loosely line up (~30% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
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)
72%
Headline metric
Movement correlation(i)
+55%
Based on % moves
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
368 paired data points survived the daily window.
Raw input
368
1,254
Normalized
368
1,254
Prepared
368
1,254
Aligned
368
368
Invalid removed
30%
Variance explained
Significance
N/A
Statistical confidence
Data points(i)
367
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
+55%
No shift — both series at their actual dates.
367 overlapping points at this shift
Baseline
+55%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+55%
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
+46%
106 periods · Return correlation when both series rose
Both Falling
+41%
79 periods · Return correlation when both series fell
Diverging
-38%
64 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
886
A: 0 / B: 886
Series A
Block, Inc. (XYZ)
XYZ
Stock · 368 raw → 368 prepared
Series B
State Street SPDR S&P 500 ETF Trust (SPY)
SPY
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
0.1803
Linear regression slope.
Intercept
0.0007
Linear regression intercept.
Saved 2 months ago · ID: stock-spy_stock-xyz_daily_5y