PHA / QI ratio and spread
1 PHA = 21.34 QI. Below is the price ratio chart and the regression spread z-score. Hedge ratio β is 0.523 and the correlation between the legs is 0.43.
If you hold PHA · If you hold QI
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Key numbers
over 362 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 0.52. Signals from this pair carry more noise than on a tightly linked one.
The spread currently sits at 2.43 standard deviations above its rolling mean — PHA is expensive relative to QI by the standards of this window.
Historically the spread covers half the way back to its mean in about 19 days, so a divergence here tends to resolve within weeks rather than months.
The current ratio sits mid-range — 43% of the way from the low to the high of the last 362 daily candles.
Frequently asked
How many QI is 1 PHA?
1 PHA is worth 21.3444 QI at the latest exchange quotes. The figure is the ratio of the two USDT prices and updates every minute.
What is the PHA/QI range?
Over the last 362 daily candles the ratio traded between 8.49287 (06.12.2025) and 38.3436 (26.05.2026).
Are PHA and QI correlated?
The correlation of daily log returns between PHA and QI 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 PHA/QI spread z-score now?
The z-score is 2.43 — 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 PHA/QI 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 19 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.