ERA / ZK ratio and spread
1 ERA = 5.548 ZK. Below is the price ratio chart and the regression spread z-score. Hedge ratio β is 0.934 and the correlation between the legs is 0.43.
If you hold ERA · If you hold ZK
ERA is cheaper against ZK than in 3 % of the time over 1.0 years. If you hold ZK, this is worth a look at rotating into ERA.
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Key numbers
over 377 daily candles
How each of these is computed: regression spread, hedge ratio, spread z-score, half-life, correlation.
What the numbers say
The legs move together only moderately — correlation of daily log returns is 0.43, with a hedge ratio of 0.93. Signals from this pair carry more noise than on a tightly linked one.
The spread currently sits at -2.49 standard deviations from its rolling mean — ERA is cheap relative to ZK by the standards of this window.
Historically the spread covers half the way back to its mean in about 16 days, so a divergence here tends to resolve within weeks rather than months.
The current ratio sits near the bottom of its range — only 13% of the way from the low to the high of the last 377 daily candles.
Frequently asked
How many ZK is 1 ERA?
1 ERA is worth 5.54795 ZK at the latest exchange quotes. The figure is the ratio of the two USDT prices and updates every minute.
What is the ERA/ZK range?
Over the last 377 daily candles the ratio traded between 3.7007 (02.11.2025) and 17.5439 (12.10.2025).
Are ERA and ZK correlated?
The correlation of daily log returns between ERA and ZK is 0.43, which counts as a moderate link. Log returns are used rather than prices: two rising assets correlate almost by default, joint day-to-day movement is what matters.
What is the ERA/ZK spread z-score now?
The z-score is -2.49 — the spread is stretched beyond two standard deviations. It measures how far the regression residual log(A) − β·log(B) sits from its rolling mean, in standard deviations.
Is ERA/ZK suitable for a pair trade?
The mechanics hold up: correlation is 0.43 and the spread historically covers half the way back to its mean in about 16 days. That is a description of past behaviour, not a forecast or a recommendation.
Related pairs
Other pairs sharing a leg with this one.
All figures are computed from exchange data and describe past behaviour. Nothing here is investment advice.