SeriesMagCorrOverlapThrough
These move together about 60% of the time
Moderate positive
A real but noisy link — useful as context, risky as a standalone signal.
Starbucks stands out as the world's biggest and most recognizable coffee brand, powered by ultracustomizable beverages in-store and a sweeping footprint of nearly 41,000 cafes in over 80 countries. About 52% are company-operated, with the balance run by licensees. The company operates roasteries and sells across its North America (74% of revenue as of the end of fiscal 2025), international (21%), and channel development (5%) segments. The brand collects revenue from company-operated stores, licensee royalties, equipment and product sales, retail ready-to-drink beverages, and packaged coffee.
Market cap 110.8B · 381,000 employees
American Airlines is the world's largest airline by aircraft, capacity, and scheduled revenue passenger miles. Its major US hubs are Dallas/Fort Worth, Charlotte, Chicago, Los Angeles, Miami, New York, Philadelphia, Phoenix, and Washington, D.C. It generates over 30% of US airline revenue connecting Latin America with destinations in the United States. After completing a major fleet renewal, the company has the youngest average fleet of US legacy carriers.
What to Watch
Unusual right now
Recent correlation (+15%) is 2.3σ from the long-run average of +56% — pair is behaving differently than usual.
Tighter in drawdowns
Pair moves more tightly when both fall (+36%) than when both rise (+9%) — typical risk-off behaviour.
Mostly stable
Correlation drifts a little but stays in the same neighbourhood.
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: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
+56%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with American Airlines Group Inc. 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
+56%
Pearson correlation
95% CI
+53% → +60%
Likely range
R²
31.9%
Variance explained
Trend agreement
59.6%
Same-direction moves
Significance
p < 0.001
Statistical confidence
Data points
1,255
Deep
Pipeline
Pipeline Summary
1,255 paired data points survived the daily window.
Raw input
1,255
1,255
Normalized
1,255
1,255
Prepared
1,255
1,255
Aligned
1,255
1,255
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.
Market cap 7.7B · 138,900 employees
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
+9%
95 periods · Return correlation when both series rose
Both Falling
+36%
92 periods · Return correlation when both series fell
Diverging
-38%
62 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
Starbucks Corp
SBUX
Market cap 110.8B · 381,000 employees
Stock · 1,255 raw → 1,255 prepared
Series B
American Airlines Group Inc.
AAL
Market cap 7.7B · 138,900 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
48
Estimated crossover points between normalized spreads.
Slope
0.1550
Linear regression slope.
Intercept
-0.0133
Linear regression intercept.
Saved 2 hours ago · ID: stock-aal_stock-sbux_5y
AAL
American Airlines Group Inc.
Strongest positive