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Vertex Pharmaceuticals Inc (VRTX) vs Total Vehicle Sales
Correlation
of % moves
+24%
In sync
of periods
65%
History
monthsmonths · through 2026-03
58
These move in the same direction about 65% of the time
Their swing sizes only faintly line up (~6% of the pattern is shared).
A real but noisy link — useful as context, risky as a standalone signal.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Slipping looser
The recent pattern is looser than its long-run baseline — keep an eye on whether this sticks.
Total Vehicle Sales moves ~5 months before VRTX
Watch Total Vehicle Sales for an early read on VRTX.
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Flips between sync and inverse
Sometimes the two move together, sometimes opposite. Don't treat this as a stable signal.
Advanced
Statistics
In sync(i)
64.9%
Headline metric
Movement correlation(i)
+24%
Based on % moves
95% CI
-2% → +47%
Likely range of correlation
Pipeline
Pipeline Summary
58 paired data points survived the monthly window.
Raw input
1,254
603
Normalized
1,254
603
Prepared
60
603
Aligned
58
58
Invalid removed
R²(i)
5.9%
Variance explained
Significance
n.s.
Statistical confidence
Data points
58
Thin
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: -18 to 18 months.
Selected shift
-5 months
Correlation at this shift
-31%
+6% stronger than no-shift baseline
Total Vehicle Sales shifted 5 months later. Reads: "Does Vertex Pharmaceuticals Inc (VRTX) today line up with Total Vehicle Sales 5 months ago?"
52 overlapping points at this shift
Baseline
+24%
No-shift correlation, matching the main time-series chart above.
Peak shift
-5 months
-31%
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
+20%
24 periods · Return correlation when both series rose
Both Falling
+3%
13 periods · Return correlation when both series fell
Diverging
-63%
20 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
547
A: 2 / B: 545
Series A
Vertex Pharmaceuticals Inc (VRTX)
VRTX
Stock · 1,254 raw → 60 prepared
Series B
Total Vehicle Sales
TOTALSA
FRED · 603 raw → 603 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
1
Estimated crossover points between normalized spreads.
Slope
0.2252
Linear regression slope.
Intercept
-0.0026
Linear regression intercept.
Saved 3 weeks ago · ID: fred-totalsa_stock-vrtx_monthly_5y