Markets move more or less instantly on big news nowadays. I mean on the order of seconds. Algos can parse data releases in real time and react in milliseconds.

Markets move more or less instantly on big news nowadays. I mean on the order of seconds. Algos can parse data releases in real time and react in milliseconds. Good GDP numbers at 2:00:00? It's gaping up at 2:00:01 and near the top of the trend by 2:00:05. I've seen it first hand many times.