来源:[1] 为什么我的E-mini SP500期货只在常规交易时间有TICK? (https://www.reddit.com/r/interactivebrokers/c ...)[2] 标普500期货盘前下跌 - Barron's (https://www.barrons.com/articles/s-p-500-futu ...)[3] 期货延迟10分钟 - 但我购买了数据! : r/TradingView (https://www.reddit.com/r/TradingView/comments ...)