Not just today, market sentiment has been bullish for the past several weeks, right after the pump from 4.1k to 4.6k in the btc price.

About the current uptrend, it looks like two large buys triggered the spike in the price. First one was yesterday when there was a small spike in the price from 5.2k to almost 5.4k, and the another one around 10 hours ago when the price shoot up from 5380 to almost 5600. It seems like after consolidating for a bit around the 5.2k mark, we're now going to test 5.6k and see if there's enough resistance on that level. Still don't think we're going to 6k anytime soon.