SeriesMagCorrSyncOverlapThrough
Correlation
+61%
of % moves
In sync
70%
of periods
History
299
days · through 2026-05-01
These move in the same direction about 70% of the time
Their swing sizes loosely line up (~37% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
Time Series
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
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)
70.5%
Headline metric
Movement correlation(i)
+61%
Based on % moves
95% CI
+53% → +67%
Likely range of correlation
Pipeline
Pipeline Summary
299 paired data points survived the daily window.
Raw input
300
13,927
Normalized
300
13,927
Prepared
300
13,927
Aligned
299
299
Invalid removed
Explore
Top 5 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.
R²(i)
36.6%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
299
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
+61%
No shift — both series at their actual dates.
299 overlapping points at this shift
Baseline
+61%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+61%
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
+11%
111 periods · Return correlation when both series rose
Both Falling
+30%
72 periods · Return correlation when both series fell
Diverging
-56%
66 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
13,629
A: 1 / B: 13628
Series A
SNDK
Stock · 300 raw → 300 prepared
Series B
NASDAQ Composite
NASDAQCOM
FRED · 13,927 raw → 13,927 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
13
Estimated crossover points between normalized spreads.
Slope
4.9053
Linear regression slope.
Intercept
20084.2189
Linear regression intercept.
Saved yesterday · ID: fred-nasdaqcom_stock-sndk_5y