they sold bitcoin without stopping since two moth at latest but in , the market suffer from selling big sommes of bitcoin , for sure the reason is whales ,they want buy more bitcoin , the big problem is when market drop , traders sells too , traders should not sell at these cheap prices because bitcoin will rise again more than percent of drop , but in cryptocurrency everyone need patience , then little of hope and why not the bull run will come back again and price to reach another highs level
generally traders should invest with strategie ,for example buy some bitcoin every time not once at the same prices or buy and hold for two year at latest
Do not forget smart traders, they sell at the 40k price because it is not going up any further but they also buy when it goes lower so they could profit. Think about it this way, what happens when there is a good amount of increase? People who bought at low makes a profit, so why wouldn't traders be happy that it went to 30k price? They are the ones who take it to 40k anyway so they are quite happy with the movement.
I do know that this prevents it from going over 40k easily because people sell there, but it also prevents it from going under 30k as well, if bitcoin market really wanted to we could have been under 30k and then go over 40k back to back by now, we have that talent, we just wanted to go up and down here to make a profit. We reached 30k before, and we reached 40k after that, similar things and I think that will happen again.