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Delta Air Lines, Inc. (DAL) vs USD/TWD Exchange Rate
Correlation
of % moves
-11%
In sync
of periods
47%
History
daysdays · through 2026-05-15
1,237
These move in the same direction about 47% of the time
Their swing sizes only faintly mirror each other (~1% of the pattern is shared).
Roughly random — these don't track each other in a meaningful way.
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
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
Advanced
Statistics
In sync(i)
47.2%
Headline metric
Movement correlation(i)
-11%
Based on % moves
95% CI
-17% → -6%
Likely range of correlation
Pipeline
Pipeline Summary
1,237 paired data points survived the daily window.
Raw input
1,253
10,398
Normalized
1,253
10,398
Prepared
1,253
10,398
Aligned
1,237
1,237
Invalid removed
R²(i)
1.3%
Variance explained
Significance
p < 0.001
Statistical confidence
Data points
1,237
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
-11%
No shift — both series at their actual dates.
1,236 overlapping points at this shift
Baseline
-11%
No-shift correlation, matching the main time-series chart above.
Peak shift
No shift
-11%
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
+22%
52 periods · Return correlation when both series rose
Both Falling
+1%
28 periods · Return correlation when both series fell
Diverging
-77%
69 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
9,177
A: 16 / B: 9161
Series A
Delta Air Lines, Inc. (DAL)
DAL
Stock · 1,253 raw → 1,253 prepared
Series B
USD/TWD Exchange Rate
DEXTAUS
FRED · 10,398 raw → 10,398 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
36
Estimated crossover points between normalized spreads.
Slope
-0.0148
Linear regression slope.
Intercept
0.0001
Linear regression intercept.
Saved 2 weeks ago · ID: fred-dextaus_stock-dal_daily_5y