/ 13% vol) Nav highlights the binary below, where the payout is much cleaner. Ruble weakens 3% (european observation)in this example, and payout is SInun for $255k invested: EFTA00703443 I-MONTH USD/RUB 3% OTM BINARY CALL costs 25.4% of payout European Digital on USD/RUB Strike: 37.55 Payout: USD