Correlation Analysis
Mastercard Incorporated vs Medline Inc. Class A common stock
MA vs MDLN
-0.283
Light inverse
When one moves up, the other tends to move down.
Mastercard Incorporated
↗MA
Mastercard is the second-largest payment processor in the world, having processed close to $11 trillion in volume during 2025. Mastercard operates in over 200 countries and processes transactions in over 150 currencies.
Market cap 447.2B
Medline Inc. Class A common stock
↗MDLN
Medline is the largest medical-surgical products and supply chain solutions provider in the US. The company generates over 90% of its revenue domestically and serves some of the largest US health systems. Medline offers approximately 190,000 Medline-branded products across more than 250 product families—including front line care, surgical solutions, and laboratory and diagnostics—as well as roughly 150,000 third-party products sourced from over 1,250 vendors. The company maintains prime vendor relationships with many customers, acting as the primary consolidated logistics partner for their medical-surgical needs. Medline has significant scale, supported by more than 30 manufacturing facilities and a fleet of over 2,000 owned delivery trucks. Medline went public in December 2025.
Market cap 35.6B · 45,000 employees
Time Series
Relative Performance
Who Moves First
MDLN leads MA by 1 day
MDLN tends to move before MA.
After testing 13 timing shifts, the strongest relationship was -0.312 (they moved in opposite directions).
Do They Crash Together?
Correlation by Market Regime
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
-0.056
9 periods · Return correlation when both series rose
Both Falling
+0.301
12 periods · Return correlation when both series fell
Diverging
-0.629
14 periods · Return correlation when series moved apart
R-Squared
8.0%
Share of variance in one series explained by the other.
Trend Agreement
62.2%
How often both series moved in the same direction period-to-period.
Overlap Quality
75
Thin shared window — 75 usable pairs.
Significance
p < 0.05
95% CI: [-0.480, -0.060]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
75 paired data points survived the daily window.
Raw input
1,254
75
Normalized
1,254
75
Prepared
1,254
75
Aligned
75
75
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,179
A: 1179 / B: 0
Series A
Mastercard Incorporated
MA
Market cap 447.2B
Stock · 1,254 raw → 1,254 prepared
Series B
Medline Inc. Class A common stock
MDLN
Market cap 35.6B · 45,000 employees
Stock · 75 raw → 75 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
3
Estimated crossover points between normalized spreads.
Slope
-0.0238
Linear regression slope.
Intercept
56.5302
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
MA
Mastercard Incorporated
Highest
+0.987
VISA Inc.
V · 1,254 data points
Lowest
-0.898
United Parcel Service, Inc. Class B
UPS · 1,254 data points
MDLN
Medline Inc. Class A common stock
Highest
+0.529
Johnson & Johnson
JNJ · 75 data points
Lowest
-0.600
NetFlix Inc
NFLX · 75 data points
Saved 5 hours ago · ID: stock-ma-vs-stock-mdln-daily