First, the data: $BTC 81561.14 (24h +0.023%)
Next, the news: a whale has set a market stop-loss at $80,500 for a 1,360 BTC long position.
The news isn’t very encouraging, but it’s not unusual for prices to rebound after falling on bad news. The simplest way to judge is to see whether trading volume increased noticeably around the news.