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Correlation
of % moves
+21%
In sync
of periods
57%
History
daysdays · through 2026-05-29
1,255
These move in the same direction about 57% of the time
Their swing sizes only faintly line up (~4% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
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.
AI Analysis
With an in-sync percentage of 57%, McDonald's and Shake Shack likely share consumer spending trends influenced by broader economic conditions and shifts in dining preferences. The data confirms this connection, as both stocks have shown some alignment in their movements, albeit with modest correlation. Going forward, track changes in consumer spending data, particularly in the fast-food sector, to gauge potential impacts on these companies. Not investment advice.
Advanced
Statistics
In sync(i)
57.0%
Headline metric
Movement correlation(i)
+21%
Based on % moves
95% CI
+15% → +26%
Likely range of correlation
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
R²(i)
4.3%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
1,255
Deep
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
+21%
No shift — both series at their actual dates.
1,254 overlapping points at this shift
Baseline
+21%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+21%
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
+10%
53 periods · Return correlation when both series rose
Both Falling
+11%
57 periods · Return correlation when both series fell
Diverging
-41%
34 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
McDonald's Corporation (MCD)
MCD
Market cap 200.6B · 150,000 employees
Stock · 1,255 raw → 1,255 prepared
Series B
Shake Shack Inc. (SHAK)
SHAK
Market cap 2.5B · 13,873 employees
Stock · 1,255 raw → 1,255 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
53
Estimated crossover points between normalized spreads.
Slope
0.6152
Linear regression slope.
Intercept
-0.0004
Linear regression intercept.
Saved 15 hours ago · ID: stock-mcd-vs-stock-shak-daily