There is a high possibility of some Pullback/Retracement. Looking at the chart - Technically in Bitcoin, At every 10k, there's an Accumulation Phase ( i.e. anger & depression ), and at some point there's a breakout, which is followed by an uptrend till next 10k. It's close to another 10k at $50170, which should technically act as a Strong Resistance. It has respected 10k before, therefore, it will in future. It doesn't matter who or the qty of bitcoins bought, markets have their own mind and events.