Anyway i know you may be concerning about the volatility of Bitcoin, but since the institutional are also buying at the top. Why should we feel worry? 
If these institutions are buying at the top, we can expect bitcoin to keep rising in value over the last few months of the year. This might be the time where everyone will get FOMO because instead of buying bitcoin when it was cheaper, they were scared and were selling their bitcoins when it was declining.
I'm also optimistic that this phase bull run isn't over yet like some speculations may claim. Recently Strategies predicts bitcoin to reach $150, 000 this year and with how the price has been currently showing some bearish moves is overwhelmed for the skeptics to keep holding. 
For institutions to keep buying at this time and the current Trump's tariff news may ease the selling pressure. 
So we can expect more investors buying more and again which should prompt the support for rising force. When's that time comes I'm sure we'll also see lot of newbies opening threads here regrettably about how they failed to buy because of psychological sentiments with the price being discouraging to buy.