Correlation Analysis
Microsoft Corp vs Affirm Holdings, Inc. Class A Common Stock
MSFT vs AFRM
+0.309
Light positive
When one moves up, the other tends to follow.
Microsoft Corp
↗MSFT
Microsoft develops and licenses consumer and enterprise software. It is known for its Windows operating systems and Office productivity suite. The company is organized into three equally sized broad segments: productivity and business processes (legacy Microsoft Office, cloud-based Office 365, Exchange, SharePoint, Skype, LinkedIn, Dynamics), intelligence cloud (infrastructure- and platform-as-a-service offerings Azure, Windows Server OS, SQL Server), and more personal computing (Windows Client, Xbox, Bing search, display advertising, and Surface laptops, tablets, and desktops).
Market cap 2.8T
Affirm Holdings, Inc. Class A Common Stock
↗AFRM
Founded in 2012, Affirm is a market leader in the buy-now, pay-later space with around $36 billion in transaction volume in fiscal 2025. Affirm offers both zero-interest financing, which is merchant subsidized, and interest-bearing loans, which function as personal loans that are approved on a per-transaction basis. Over 70% of Affirm's transaction volume comes from its interest-bearing loans, which also comprise the majority of its revenue. Affirm operates in the United States, which accounted for more than 95% of its revenue in 2025, but the firm has also expanded to Canada and the United Kingdom.
Market cap 16.1B · 2,206 employees
Time Series
Rebased to 100
Who Moves First
MSFT leads AFRM by 6 days
MSFT tends to move before AFRM.
Best correlation after shifting: +0.310 (13 shifts scanned)
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
-0.151
11 periods · Return correlation when both series rose
Both Falling
+0.477
8 periods · Return correlation when both series fell
Diverging
-0.440
16 periods · Return correlation when series moved apart
R-Squared
9.6%
Share of variance in one series explained by the other.
Trend Agreement
63.3%
How often both series moved in the same direction period-to-period.
Overlap Quality
1,254
Deep shared window — 1,254 usable pairs.
Significance
p < 0.001
95% CI: [0.258, 0.359]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired observations survived the daily window.
Raw input
1,254
1,254
Normalized
1,254
1,254
Prepared
1,254
1,254
Aligned
1,254
1,254
Invalid removed
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
0
A: 0 / B: 0
Series A
Microsoft Corp
MSFT
Market cap 2.8T
Stock · 1,254 raw → 1,254 prepared
Series B
Affirm Holdings, Inc. Class A Common Stock
AFRM
Market cap 16.1B · 2,206 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
23
Estimated crossover points between normalized spreads.
Slope
0.1120
Linear regression slope.
Intercept
7.3096
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
MSFT
Microsoft Corp
Highest
+0.938
Cadence Design Systems
CDNS · 1,254 observations
Lowest
-0.867
Bristol-Myers Squibb Co.
BMY · 1,254 observations
AFRM
Affirm Holdings, Inc. Class A Common Stock
Highest
+0.560
Tesla, Inc. Common Stock
TSLA · 1,254 observations
Lowest
-0.411
Exxon Mobil Corporation
XOM · 1,254 observations
Saved 3 hours ago · ID: stock-msft-vs-stock-afrm-daily-20260408-haq9pa