SeriesMagCorrOverlapThrough
These move together about 57% of the time
Moderate positive
A real but noisy link — useful as context, risky as a standalone signal.
Alphabet is a holding company that wholly owns internet giant Google. The California-based company derives slightly less than 90% of its revenue from Google services, the vast majority of which is advertising sales. Alongside online ads, Google services houses sales stemming from Google's subscription services (YouTube TV and YouTube Music, among others), platforms (sales and in-app purchases on Play Store), and devices (Chromebooks, Pixel smartphones, and smart home products such as Chromecast). Google's cloud computing platform accounts for roughly 10% of Alphabet's revenue. The firm's investments in up-and-coming technologies such as self-driving cars (Waymo), health (Verily), and interne
Market cap 4.7T · 190,820 employees
McDonald's is the world's largest restaurant brand, with nearly $139 billion in systemwide sales across more than 45,000 restaurants and over 100 markets. The quick-service chain built its early reputation on speed, consistency, and affordable hamburgers, and today its global menu spans burgers, chicken, breakfast, and beverages that have helped popularize American fast-food cuisine worldwide. The firm derives the bulk of its revenue from franchise royalties and rent (about 62%), with the remainder stemming from company-operated restaurants across three segments: the United States (39% of systemwide sales), international operated markets (35%), and international developmental/licensed market
What to Watch
Drifting from pattern
Recent correlation (+10%) is running 1.8σ away from the long-run average of +61%.
Holds across regimes
Correlation is similar when markets rise (-9%) and fall (+28%) — 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: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
+61%
No shift — both series at their actual dates.
1,255 overlapping points at this shift
Time series with McDonald's Corporation 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
+61%
Pearson correlation
95% CI
+58% → +64%
Likely range
R²
37.3%
Variance explained
Trend agreement
57.0%
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 206.3B · 150,000 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
+28%
83 periods · Return correlation when both series fell
Diverging
-38%
71 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
Alphabet Inc. Class A Common Stock
GOOGL
Market cap 4.7T · 190,820 employees
Stock · 1,255 raw → 1,255 prepared
Series B
McDonald's Corporation
MCD
Market cap 206.3B · 150,000 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
31
Estimated crossover points between normalized spreads.
Slope
0.2603
Linear regression slope.
Intercept
235.3007
Linear regression intercept.
Saved 2 hours ago · ID: stock-googl_stock-mcd_5y
MCD
McDonald's Corporation
Strongest positive