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Ethereum Classic (ETC) vs PPI: All Commodities
Correlation
of % moves
-16%
In sync
of periods
57%
History
monthsmonths · through 2026-04
24
These move opposite each other about 57% of the time
Their swing sizes only faintly mirror each other (~2% 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
ETC moves ~12 months before PPI: All Commodities
Watch ETC for an early read on PPI: All Commodities.
Decouples in drawdowns
The relationship weakens when both prices are falling — don't count on this pair as a hedge under stress.
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)
56.5%
Headline metric
Movement correlation(i)
-16%
Based on % moves
95% CI
-53% → +27%
Likely range of correlation
Pipeline
Pipeline Summary
24 paired data points survived the monthly window.
Raw input
730
1,360
Normalized
730
1,360
Prepared
25
1,360
Aligned
24
24
Invalid removed
R²(i)
2.4%
Variance explained
Significance
n.s.
Statistical confidence
Data points
24
Limited
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: -13 to 13 months.
Selected shift
+12 months
Correlation at this shift
-50%
+35% stronger than no-shift baseline
PPI: All Commodities shifted 12 months earlier. Reads: "Does Ethereum Classic (ETC) today line up with PPI: All Commodities 12 months from now?"
11 overlapping points at this shift
Baseline
-16%
No-shift correlation, matching the main time-series chart above.
Peak shift
+12 months
-50%
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
-56%
6 periods · Return correlation when both series rose
Both Falling
-30%
7 periods · Return correlation when both series fell
Diverging
-6%
10 periods · Return correlation when series moved apart
Scatter
0
A: 0 / B: 0
Duplicates removed
0
A: 0 / B: 0
Alignment drops
1,337
A: 1 / B: 1336
Series A
Ethereum Classic (ETC)
ETC
Crypto · 730 raw → 25 prepared
Series B
PPI: All Commodities
PPIACO
FRED · 1,360 raw → 1,360 prepared
Sign agreement
100.0%
How often both values share the same sign.
Zero crossings
5
Estimated crossover points between normalized spreads.
Slope
-0.0100
Linear regression slope.
Intercept
0.0040
Linear regression intercept.
Saved 2 weeks ago · ID: crypto-etc_fred-ppiaco_monthly_5y