i know such thing was very difficult, altho not impossible on major news on spot currency, i wonder if futures, such news straddles are viable ? there should be abundant amount of liquidity and minimal slippage right ? also, where can you find a list of the volatility expected from news release. sometimes, a news release would be rated high volatility expected, but instead it just makes the prices zig zag, and go no where. why does this happen ?