Hello, I have been examining and seeing the same strategy for days, they stop the demand and activate the offer through bots, to keep the price in a certain value range in which they are accumulating, be careful with this game of selling to accumulate but, at some point, when you least expect it, you will come or go short and you will miss the train.

initially I put a pennant really do not know why I did it, but before going long I realized the error, in this graph you can not see why then corregi, you can see the full analysis in  https://www.tradingview.com/chart/BTCUSD/qFQNh0KR-BTC-while-you-sell-they-only-buy/

previous analysis (a draft) that complements the idea https://www.tradingview.com/chart/BTCUSD/ZFhhJQ8q-btc-usd/

Important clarification:

this is not an investment advice, I'm not a whale who knows everything, I'm just a simple trader, keep in mind that fundamental issues such as the news of day 21/05 (tomorrow) could change the scenario, both in favor as against the market. Do not invest more than you are willing to lose.
Good luck in your trading.