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PROTO LABS, INC. (PRLB) vs HY Bond Spread
Correlation
of % moves
-40%
In sync
of periods
36%
History
daysdays · through 2026-06-05
750
These move in the same direction about 36% of the time
Their swing sizes only faintly mirror each other (~16% 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
Holds in both up and down markets
The relationship is similar whether prices are rising or falling — reliable in both directions.
Rock solid
The relationship barely changes from period to period — treat it as a reliable signal.
Advanced
Statistics
In sync(i)
35.5%
Headline metric
Movement correlation(i)
-40%
Based on % moves
95% CI
-45% → -33%
Likely range of correlation
Pipeline
Pipeline Summary
750 paired data points survived the daily window.
Raw input
1,255
785
Normalized
1,255
785
Prepared
1,255
785
Aligned
750
750
Invalid removed
R²(i)
15.6%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
750
Deep
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: -6 to 6 days.
Selected shift
No shift
Correlation at this shift
-40%
No shift — both series at their actual dates.
749 overlapping points at this shift
Baseline
-40%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-40%
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
-3%
24 periods · Return correlation when both series rose
Both Falling
-6%
41 periods · Return correlation when both series fell
Diverging
-65%
177 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
540
A: 505 / B: 35
Series A
PROTO LABS, INC. (PRLB)
PRLB
Stock · 1,255 raw → 1,255 prepared
Series B
HY Bond Spread
BAMLH0A0HYM2
FRED · 785 raw → 785 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
17
Estimated crossover points between normalized spreads.
Slope
-0.2886
Linear regression slope.
Intercept
-0.0003
Linear regression intercept.
Saved last month · ID: fred-bamlh0a0hym2_stock-prlb_daily_5y