Starting today, I won't look at after-hours and night markets anymore

Starting from today, I plan not to look at after-hours and night markets anymore. The real and substantial trading happens during the market hours. It's okay to pay a little attention to pre-market, but it's too early to be of much use.

Yesterday, APP closed at 461, and the after-hours and night markets were fine. I placed a short order at 473. I woke up at around 2 a.m. and checked the pre-market, and everything seemed normal. Then I fell asleep again and woke up an hour after the market opened. When I checked APP's stock price: 387, a 16% drop—oh my god, I was instantly stunned.

After-hours and night market analyses for the next day's trends are useless. I usually make some pre-market plans, place orders, and set stop-losses. But recently, during earnings season, my after-hours and pre-market strategies for a few stocks have failed. The market opened with the most unlikely and unimaginable scenario.