Are there any European index options available for trading that have 'real' liquidity? I have experimented with some good strategies on SPX (for example), but such strategies would amount to garbage since obviously it would be next to impossible to exit the trades before expiration at a fair price. SPY has superior liquidity but I hate American Style options, horrible for options sellers, especially with complex strategies involving atm butterflies. I've heard about the South Korean KOSPI index and it's excellent liquidity, but of course the asshats in the American government won't let us trade it (hate the government, they seem determined to prevent any form of potentially profitable enterprise if they can't regulate it). Are there any truly liquid indices for US options traders out there? If so, which ones?