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Correlation
of % moves
+64%
In sync
of periods
75%
History
daysdays · through 2026-05-22
499
These move in the same direction about 75% of the time
Their swing sizes loosely line up (~42% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
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)
75.2%
Headline metric
Movement correlation(i)
+64%
Based on % moves
95% CI
+59% → +69%
Likely range of correlation
Pipeline
Pipeline Summary
499 paired data points survived the daily window.
Raw input
593
730
Normalized
593
730
Prepared
593
730
Aligned
499
499
Invalid removed
R²(i)
41.6%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
499
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
+64%
No shift — both series at their actual dates.
498 overlapping points at this shift
Baseline
+64%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+64%
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
+42%
101 periods · Return correlation when both series rose
Both Falling
+50%
105 periods · Return correlation when both series fell
Diverging
-39%
43 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
325
A: 94 / B: 231
Series A
Fidelity Wise Origin Bitcoin Fund (FBTC)
FBTC
Stock · 593 raw → 593 prepared
Series B
Ethereum Classic (ETC)
ETC
Crypto · 730 raw → 730 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
26
Estimated crossover points between normalized spreads.
Slope
0.9936
Linear regression slope.
Intercept
-0.0028
Linear regression intercept.
Saved 2 weeks ago · ID: crypto-etc_stock-fbtc_daily_5y