Correlation Analysis
VISA Inc. vs Vertex Pharmaceuticals Inc
V vs VRTX
+0.776
Strong positive
When one moves up, the other tends to follow.
VISA Inc.
↗V
Visa is the largest payment processor in the world. In fiscal 2025, it processed almost $17 trillion in total volume. Visa operates in over 200 countries and processes transactions in over 160 currencies. Its systems are capable of processing over 65,000 transactions per second.
Market cap 583.4B
Vertex Pharmaceuticals Inc
↗VRTX
Vertex Pharmaceuticals is a global biotechnology company that discovers and develops small-molecule drugs for the treatment of serious diseases. Its key drugs are Kalydeco, Orkambi, Symdeko, and Trikafta/Kaftrio, and Alyftrek for cystic fibrosis, where Vertex therapies remain the standard of care globally. Vertex has diversified its portfolio through Casgevy, a gene-editing therapy for beta thalassemia and sickle-cell disease, and Journavx, a non-opioid pain medication approved for the treatment of moderate-to-severe acute pain in adults. Additionally, Vertex is evaluating small-molecule inhibitors of APOL1-mediated kidney diseases. Vertex is also investigating cell therapies to deliver a potential functional cure for type 1 diabetes.
Market cap 110.5B · 6,400 employees
Time Series
Relative Performance
Who Moves First
VRTX leads V by 6 days
VRTX tends to move before V.
After testing 13 timing shifts, the strongest relationship was +0.778 (they moved in the same direction).
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
+0.546
11 periods · Return correlation when both series rose
Both Falling
+0.206
7 periods · Return correlation when both series fell
Diverging
-0.653
17 periods · Return correlation when series moved apart
R-Squared
60.2%
Share of variance in one series explained by the other.
Trend Agreement
59.2%
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: [0.753, 0.797]
Scatter
XY Regression
Pipeline
Data quality details
Pipeline
Data quality details
Pipeline Summary
1,254 paired data points 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
VISA Inc.
V
Market cap 583.4B
Stock · 1,254 raw → 1,254 prepared
Series B
Vertex Pharmaceuticals Inc
VRTX
Market cap 110.5B · 6,400 employees
Stock · 1,254 raw → 1,254 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
27
Estimated crossover points between normalized spreads.
Slope
1.4807
Linear regression slope.
Intercept
-34.5226
Linear regression intercept.
Related Extremes
Highest and Lowest Correlated
Saved 6 hours ago · ID: stock-v-vs-stock-vrtx-daily