You're quoting a spread of $50.00 / $50.05. Suddenly, your $50.05 ask gets hit, and a millisecond later, the exchange mid-price jumps to $50.10. You're losing money. What exactly is happening here, and how should you adapt your strategy?

你的做市系统显示买卖价是 $50.00 / $50.05。突然你的 $50.05 卖单被成交了，毫秒级之后，交易所的中间价直接跳到了 $50.10，你亏钱了。这到底发生了什么？你应该怎么防范？