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Boston Scientific Corp. (BSX) vs PCE Price Index
Correlation
of % moves
-32%
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 mirror each other (~10% of the pattern is shared).
A faint pattern — interesting as colour, not strong enough to act on alone.
On a log scale so equal % moves take equal vertical space — best when one series has grown much faster than the other.
What to Watch
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)
-32%
Based on % moves
95% CI
-54% → -7%
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
Likely range of correlation
R²(i)
10.4%
Variance explained
Significance
p < 0.05
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
No shift
Correlation at this shift
-32%
No shift — both series at their actual dates.
58 overlapping points at this shift
Baseline
-32%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-32%
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
-11%
34 periods · Return correlation when both series rose
Both Falling
N/A
0 periods · Return correlation when both series fell
Diverging
-11%
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
Boston Scientific Corp. (BSX)
BSX
Stock · 1,255 raw → 61 prepared
Series B
PCE Price Index
PCEPI
FRED · 808 raw → 808 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
2
Estimated crossover points between normalized spreads.
Slope
-0.0123
Linear regression slope.
Intercept
0.0033
Linear regression intercept.
Saved last month · ID: fred-pcepi_stock-bsx_monthly_5y