SeriesMagCorrOverlapThrough
These move opposite each other about 47% of the time
Very strong inverse
Strong enough to use as a signal — read the stability and regime notes below before relying on it.
Apple is among the largest companies in the world, with a broad portfolio of hardware and software products targeted at consumers and businesses. Apple's iPhone makes up a majority of the firm sales, and Apple's other products like Mac, iPad, and Watch are designed around the iPhone as the focal point of an expansive software ecosystem. Apple has progressively worked to add new applications, like streaming video, subscription bundles, and augmented reality. The firm designs its own software and semiconductors while working with subcontractors like Foxconn and TSMC to build its products and chips. Slightly less than half of Apple's sales come directly through its flagship stores, with a major
Market cap 3.9T · 166,000 employees
Fed Balance Sheet
WALCL
What to Watch
Drifting from pattern
Recent correlation (-13%) is running 1.2σ away from the long-run average of -85%.
Holds across regimes
Correlation is similar when markets rise (-20%) and fall (+12%) — reliable in both directions.
Regime-dependent
The correlation has flipped sign across time windows — not reliable as a standalone signal.
Time Series
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: -12 to 12 weeks.
Selected shift
No shift
Correlation at this shift
-85%
No shift — both series at their actual dates.
261 overlapping points at this shift
Time series with Fed Balance Sheet at original dates
Indexed to 100 at start
Deep Dive
Stability
How the correlation evolves over time. A stable line means the relationship is reliable; large swings signal regime-dependent behavior.
Corr
-85%
Pearson correlation
95% CI
-88% → -81%
Likely range
R²
72.5%
Variance explained
Trend agreement
47.3%
Same-direction moves
Significance
p < 0.001
Statistical confidence
Data points
261
Robust
Pipeline
Pipeline Summary
261 paired data points survived the weekly window.
Raw input
1,255
1,220
Normalized
1,255
1,220
Prepared
261
1,220
Aligned
261
261
Invalid removed
Explore
The strongest positive and inverse pairs we’ve saved for each side of this comparison — good jumping-off points if this result raised a question.
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
-20%
51 periods · Return correlation when both series rose
Both Falling
+12%
65 periods · Return correlation when both series fell
Diverging
-41%
133 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
959
A: 0 / B: 959
Series A
Apple Inc.
AAPL
Market cap 3.9T · 166,000 employees
Stock · 1,255 raw → 261 prepared
Series B
WALCL
FRED · 1,220 raw → 1,220 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
-17655.9191
Linear regression slope.
Intercept
11115393.9141
Linear regression intercept.
Saved 3 hours ago · ID: fred-walcl_stock-aapl_5y