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West Pharmaceutical Services, Inc. (WST) vs Bank Reserves
Correlation
of % moves
+37%
In sync
of periods
59%
History
monthsmonths · through 2026-04
59
These move in the same direction about 59% of the time
Their swing sizes only faintly line up (~14% 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
Bank Reserves moves ~14 months before WST
Watch Bank Reserves for an early read on WST.
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)
58.6%
Headline metric
Movement correlation(i)
+37%
Based on % moves
95% CI
+12% → +57%
Likely range of correlation
Pipeline
Pipeline Summary
59 paired data points survived the monthly window.
Raw input
1,255
808
Normalized
1,255
808
Prepared
61
808
Aligned
59
59
Invalid removed
R²(i)
13.6%
Variance explained
Significance
p < 0.01
Statistical confidence
Data points
59
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
-14 months
Correlation at this shift
-43%
+6% stronger than no-shift baseline
Bank Reserves shifted 14 months later. Reads: "Does West Pharmaceutical Services, Inc. (WST) today line up with Bank Reserves 14 months ago?"
44 overlapping points at this shift
Baseline
+37%
No-shift correlation, matching the main time-series chart above.
Peak shift
-14 months
-43%
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
+55%
19 periods · Return correlation when both series rose
Both Falling
+72%
15 periods · Return correlation when both series fell
Diverging
-53%
24 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
751
A: 2 / B: 749
Series A
West Pharmaceutical Services, Inc. (WST)
WST
Stock · 1,255 raw → 61 prepared
Series B
Bank Reserves
TOTRESNS
FRED · 808 raw → 808 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
7
Estimated crossover points between normalized spreads.
Slope
0.1383
Linear regression slope.
Intercept
-0.0036
Linear regression intercept.
Saved last month · ID: fred-totresns_stock-wst_monthly_5y