USDRUB is moving inside the rising channel (green lines), resistance level 60-62 was broken 3 days ago. Probably level 60-62 is a support now. The delta hedge levels of USDRUB volatility trading are 62, 60, 58... or 64, 66, 68 (every 2 rubles, red lines). The September series volatility is 22%, two weeks ago it was 15%. In case of reducing of USDRUB rate to the lowest level of the channel together with reduction of volatility, buying volatility makes sense. Selling volatility at current levels seems very risky.