ORCA / API3 ratio and spread
1 ORCA = 7.383 API3. Below is the price ratio chart and the regression spread z-score. Hedge ratio β is 0.233 and the correlation between the legs is 0.40.
If you hold ORCA · If you hold API3
ORCA has been more expensive against API3 than now only 0 % of the time over 1.0 years. If you hold ORCA, this is worth a look at rotating into API3.
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Key numbers
over 373 daily candles
How each of these is computed: regression spread, hedge ratio, spread z-score, half-life, correlation.
What the numbers say
The legs barely move together: correlation of daily log returns is only 0.40. A spread built on such a weak link reverts by coincidence rather than by mechanism.
The spread currently sits at 3.15 standard deviations above its rolling mean — ORCA is expensive relative to API3 by the standards of this window.
Reversion is slow: the spread needs roughly 33 days to cover half the way back to its mean. A position would have to be held for a long time.
The current ratio sits in the upper part of its range — 99% of the way from the low to the high of the last 373 daily candles.
Frequently asked
How many API3 is 1 ORCA?
1 ORCA is worth 7.38259 API3 at the latest exchange quotes. The figure is the ratio of the two USDT prices and updates every minute.
What is the ORCA/API3 range?
Over the last 373 daily candles the ratio traded between 1.76087 (07.02.2026) and 7.45882 (05.10.2026).
Are ORCA and API3 correlated?
The correlation of daily log returns between ORCA and API3 is 0.40, which counts as a weak 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 ORCA/API3 spread z-score now?
The z-score is 3.15 — 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 ORCA/API3 suitable for a pair trade?
Weakly. Correlation is only 0.40, so the legs do not reliably move together and the spread carries mostly idiosyncratic noise.
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.