Correlation Analysis
Apple Inc. vs Twilio Inc.
AAPL vs TWLO
-0.305
Light inverse
When one moves up, the other tends to move down.
Apple Inc.
↗AAPL
Apple is among the largest companies in the world, with a broad portfolio of hardware and software products targeted at consumers and businesses. Apple's iPhone makes up a majority of the firm sales, and Apple's other products like Mac, iPad, and Watch are designed around the iPhone as the focal point of an expansive software ecosystem. Apple has progressively worked to add new applications, like streaming video, subscription bundles, and augmented reality. The firm designs its own software and semiconductors while working with subcontractors like Foxconn and TSMC to build its products and chips. Slightly less than half of Apple's sales come directly through its flagship stores, with a majority of sales coming indirectly through partnerships and distribution.
Market cap 3.8T
Twilio Inc.
↗TWLO
Twilio is a cloud-based communications platform-as-a-service company offering communication building blocks that allow for a fully customized customer engagement experience spanning voice, video, chat, and SMS messaging. It does this through various application programming interfaces and prebuilt solution applications aimed at improving customer engagement. The company leverages its Super Network, a global network of carrier relationships, to facilitate high-speed, cost-effective communication.
Market cap 19.9B · 5,587 employees
Time Series
Rebased to 100
Who Moves First
TWLO leads AAPL by 6 days
TWLO tends to move before AAPL.
Best correlation after shifting: -0.307 (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
-0.036
11 periods · Return correlation when both series rose
Both Falling
+0.377
10 periods · Return correlation when both series fell
Diverging
-0.323
14 periods · Return correlation when series moved apart
R-Squared
9.3%
Share of variance in one series explained by the other.
Trend Agreement
61.6%
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: [-0.355, -0.254]
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
Apple Inc.
AAPL
Market cap 3.8T
Stock · 1,254 raw → 1,254 prepared
Series B
Twilio Inc.
TWLO
Market cap 19.9B · 5,587 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
-0.7108
Linear regression slope.
Intercept
260.7710
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 3 hours ago · ID: stock-aapl-vs-stock-twlo-daily-20260408-opj9tj