$BTC amount of money drops a few thousand, it’s considered a big drop. For coins at this price level, a drop of seven or eight thousand is very normal; you could say it's just normal fluctuation. It's similar to a ten-dollar altcoin dropping two or three dollars, which is quite normal. What is considered a big drop? If the large coin suddenly drops to 70,000 or 80,000, that would be a big drop. There are too many long positions in contracts, so it has to drop; it needs to liquidate