來源:[1] 為什麼我的E-mini SP500期貨只在常規交易時間有TICK? (https://www.reddit.com/r/interactivebrokers/c ...)[2] 標普500期貨盤前下跌 - Barron's (https://www.barrons.com/articles/s-p-500-futu ...)[3] 期貨延遲10分鐘 - 但我購買了數據! : r/TradingView (https://www.reddit.com/r/TradingView/comments ...)