This is an indicator that shows the ratio of spot price and "FX" price of bitFlyer, a Japanese cryptocurrency exchange.
"FXBTCJPY" is a special product and does not strictly work with spot price.
Because of the extremely "peculiar" price, it often deviates from the spot price.
This is an indicator to confirm it.
·Source
BITFLYER: BTCJPY
BITFLYER: FXBTCJPY
=================
bitFlyerの現物価格とFX価格の乖離率を見るやつ。とりあえず見れればいい人向け