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West Pharmaceutical Services, Inc. (WST) vs Bank Reserves
Correlation
of % moves
+33%
In sync
of periods
57%
History
monthsmonths · through 2026-07
59
These move in the same direction about 57% of the time
Their swing sizes only faintly line up (~11% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
WST moves ~8 months before Bank Reserves
Watch WST for an early read on Bank Reserves.
Tighter in drawdowns
The relationship is stronger when both prices are falling than when both are rising — typical risk-off behaviour.
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)
57%
Headline metric
Movement correlation(i)
+33%
Based on % moves
95% CI
+7% → +54%
Likely range of correlation
Pipeline
Pipeline Summary
59 paired data points survived the monthly window.
Raw input
1,253
811
Normalized
1,253
811
Prepared
61
811
Aligned
59
59
Invalid removed
R²(i)
11%
Variance explained
Significance
p < 0.05
Statistical confidence
Data points(i)
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
+8 months
Correlation at this shift
+38%
+5% stronger than no-shift baseline
Bank Reserves shifted 8 months earlier. Reads: "Does West Pharmaceutical Services, Inc. (WST) today line up with Bank Reserves 8 months from now?"
50 overlapping points at this shift
Baseline
+33%
No-shift correlation, matching the main time-series chart above.
Peak shift
+8 months
+38%
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
+26%
18 periods · Return correlation when both series rose
Both Falling
+73%
15 periods · Return correlation when both series fell
Diverging
-54%
25 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
754
A: 2 / B: 752
Series A
West Pharmaceutical Services, Inc. (WST)
WST
Stock · 1,253 raw → 61 prepared
Series B
Bank Reserves
TOTRESNS
FRED · 811 raw → 811 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
0.1195
Linear regression slope.
Intercept
-0.0050
Linear regression intercept.
Saved 4 months ago · ID: fred-totresns_stock-wst_monthly_5y