This script shows the divergence between BTC futures price and BTC actuals price of bitFlyer FX and BitMEX in percentage[%]. Usually, when people bought it or sold it too much on futures, the divergence between actuals and futures are getting expanding. I believe this is really useful to find when the conversion of the trend happens.
Also supports ETH and USDT divergence too. If you wish to enable USDT mode, please check "Show only USDT divergence (Poloniex)" on the settings menu.