Correlation
of % moves
-3%
In sync
of periods
49%
History
daysdays · through 2026-05-07
289
These move opposite each other about 49% of the time
Their swing sizes barely line up — almost no shared pattern.
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
Slipping tighter
The recent pattern is tighter than its long-run baseline — keep an eye on whether this sticks.
USAR moves ~5 days before COST
Watch USAR for an early read on COST.
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.
Explore
Advanced
Statistics
Approximate (legacy record)In sync(i)
49.1%
Headline metric
Movement correlation(i)
-3%
Based on % moves
95% CI
N/A
Likely range
Pipeline
Pipeline Summary
289 paired data points survived the daily window.
Raw input
1,255
289
Normalized
1,255
289
Prepared
1,255
289
Aligned
289
289
Invalid removed
R²(i)
0.1%
Variance explained
Significance
N/A
Statistical confidence
Data points
289
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
-5 days
Correlation at this shift
-9%
+6% stronger than no-shift baseline
USAR shifted 5 days later. Reads: "Does Costco Wholesale Corp. (COST) today line up with USAR 5 days ago?"
244 overlapping points at this shift
Baseline
-3%
No-shift correlation, matching the main time-series chart above.
Peak shift
-5 days
-9%
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
+13%
59 periods · Return correlation when both series rose
Both Falling
+32%
64 periods · Return correlation when both series fell
Diverging
-50%
126 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
966
A: 966 / B: 0
Series A
COST
Stock · 1,255 raw → 1,255 prepared
Series B
USAR
Stock · 289 raw → 289 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
15
Estimated crossover points between normalized spreads.
Slope
-0.0301
Linear regression slope.
Intercept
0.0014
Linear regression intercept.
Saved 4 days ago · ID: stock-cost_stock-usar_5y
Explore
Top 10 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.