FIL / U ratio and spread
1 FIL = 0.9878976 U. Below is the price ratio chart and the regression spread z-score. Hedge ratio β is -77.267 and the correlation between the legs is -0.04.
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Key numbers
over 244 daily candles
How each of these is computed: regression spread, hedge ratio, spread z-score, half-life, correlation.
What the numbers say
The fitted hedge ratio is negative: over the window FIL and U moved in opposite directions. A pair trade assumes the legs move together, so this combination does not qualify as one.
The spread is at 1.04 standard deviations from its rolling mean: away from the norm, but not far enough to call it stretched.
Historically the spread covers half the way back to its mean in about 13 days, so a divergence here tends to resolve within weeks rather than months.
The current ratio sits mid-range — 31% of the way from the low to the high of the last 244 daily candles.
Frequently asked
How many U is 1 FIL?
1 FIL is worth 0.987898 U at the latest exchange quotes. The figure is the ratio of the two USDT prices and updates every minute.
What is the FIL/U range?
Over the last 244 daily candles the ratio traded between 0.672764 (18.08.2026) and 1.68483 (15.01.2026).
Are FIL and U correlated?
The correlation of daily log returns between FIL and U is -0.04, 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 FIL/U spread z-score now?
The z-score is 1.04 — the spread is within its usual range. It measures how far the regression residual log(A) − β·log(B) sits from its rolling mean, in standard deviations.
Is FIL/U suitable for a pair trade?
No. The fitted hedge ratio is negative, meaning the legs moved in opposite directions over the window — the market-neutral construction that pair trading relies on does not hold here.
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.