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Spot Crude Oil Price: West Texas Intermediate vs Texas Capital Texas Oil Index ETF (OILT)
Correlation
of % moves
+73%
In sync
of periods
72%
History
monthsmonths · through 2026-08
33
These move in the same direction about 72% of the time
When one swings, the other often swings by a similar amount (~53% of the pattern is shared).
Strong enough to use as a signal — check the stability and regime notes below before relying on it.
Both lines start at the same point — easy to compare when growth rates are similar.
What to Watch
Slipping tighter
The recent pattern is tighter than its long-run baseline — keep an eye on whether this sticks.
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
Mostly stable
The relationship drifts a little but stays in the same neighbourhood.
Explore
Advanced
Statistics
In sync(i)
72%
Headline metric
Movement correlation(i)
+73%
Based on % moves
95% CI
+51% → +86%
Likely range of correlation
Pipeline
Pipeline Summary
33 paired data points survived the monthly window.
Raw input
968
693
Normalized
968
693
Prepared
968
34
Aligned
33
33
Invalid removed
R²(i)
53%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points(i)
32
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
+73%
No shift — both series at their actual dates.
32 overlapping points at this shift
Baseline
+73%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
+73%
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
+63%
13 periods · Return correlation when both series rose
Both Falling
+32%
10 periods · Return correlation when both series fell
Diverging
-63%
9 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
936
A: 935 / B: 1
Series A
Spot Crude Oil Price: West Texas Intermediate
WTISPLC
FRED · 968 raw → 968 prepared
Series B
Texas Capital Texas Oil Index ETF (OILT)
OILT
Stock · 693 raw → 34 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
0.4898
Linear regression slope.
Intercept
0.0042
Linear regression intercept.
Saved 2 weeks ago · ID: fred-wtisplc_stock-oilt_monthly_5y
Explore
Top 10 by absolute correlation
Ranked across both sides of this comparison using the same dense row format as the single-symbol correlations view.