Disclaimer: this is not TA, it's just data showing what happend recently.

Here you can see the Bitcoin price (top) since the beginning of August. The bottom chart shows Bitfinex Shorts. You can see an inverse correlation, obviously. When prices drop, not many new shorts are opened (people don't like to catch falling knifes, not only when buying Bitcoin), but pumping prices are really bad for people who bet on falling charts.

Thus the recent pump of Bitcoin price was accompanied by a huge drop in short positions. Be aware, the number on the bottom scale is not USD (as claimed), it's Bitcoin:

Bitcoin price / Bitfinex Shorts (every candle is showing one day)

Most of these shorts have been liquidated! Here you can see liquidatons of shorts (red) and longs (green). When prices dropped heavily in mid august, you can see a lot of liquidations for long positions:

(from coinglass)

There have been $214,000,000 in short liquidations today alone!

Don't do leverage, people. Also we can see that this pump was (to some extent) being paid for by a short squeeze. Doesn't look very sustainable if you ask me.