指数差价合约展期 - 最佳实践？

I always close manually before expiry. The spreads some brokers offer for automatic rollover are just not worth it, and I'd rather control my entry.

For me, it depends on the broker. Some have fair rollover adjustments; others are clearly trying to gouge you. I usually let it roll if I'm with a good one, but if not, I'm out before.