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Correlation
of values
+85%
In sync
of periods
51%
History
daysdays · through 2026-08-31
746
These move in the same direction about 51% of the time
When one swings, the other almost always swings by a closely matched amount (~72% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
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
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
Advanced
Statistics
In sync(i)
51%
Headline metric
Movement correlation(i)
+85%
Based on values
95% CI
+83% → +87%
Likely range of correlation
Pipeline
Pipeline Summary
746 paired data points survived the daily window.
Raw input
3,317
785
Normalized
3,317
785
Prepared
3,317
785
Aligned
746
746
Invalid removed
R²(i)
72%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
746
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
+85%
No shift — both series at their actual dates.
746 overlapping points at this shift
Baseline
+85%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+85%
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%
40 periods · Return correlation when both series rose
Both Falling
+11%
60 periods · Return correlation when both series fell
Diverging
-44%
133 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
2,610
A: 2571 / B: 39
Series A
Overnight Reverse Repo
RRPONTSYD
FRED · 3,317 raw → 3,317 prepared
Series B
ICE BofA BBB US Corporate Index Option-Adjusted Spread
BAMLC0A4CBBB
FRED · 785 raw → 785 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
0.0004
Linear regression slope.
Intercept
1.0091
Linear regression intercept.
Saved 4 months ago · ID: fred-bamlc0a4cbbb_fred-rrpontsyd_daily_5y