Three prices.
One truth. No agreement.
SOXL is built to move exactly three times SOXX. For eight hours a night Bitget quotes both with no venue behind either — and they stop agreeing. We checked every hour of 180 nights.
What Parity does
Not a forecast. An identity, checked against the venue's own quotes, and graded against 180 measured nights.
The identity, not a model
A leveraged ETF is contractually built to deliver a fixed multiple of its index. Measured from a common anchor within one session, that is arithmetic. There is no fair value to argue with.
Graded, not asserted
Every reading is scored against this pair's own measured night. Fifteen thousand observations across ~180 nights in 2026, all of it downloadable.
The trade we did not find
We entered every reading past 40 bps and held to the open. It never clears two sides of taker fee. These are defects you pay, not opportunities you take — which is the whole reason this is a pre-trade check.
An analyst with live hands
Ask for a price, a mover, or a read on tonight's board. It calls Bitget's market API rather than answering from memory, and shows you which tool it reached for.
Before you take that fill at 2am
Check whether the venue's own arithmetic agrees with the price you are about to pay.
See tonight's board