Possibly the first hints of a run to 50K, I've learned not to get too excited and I do think the short sellers will be taking opportunities to scalp the euphoria (I would as well but with very tight stops). This takes time and don't worry about it if we go down again, it happens and cheaper bitcoin allows you to harvest more sats in the meantime. 48377 is new ATH but it did not hold (possible double top scenario), so be cautiously optimistic and we are headed into a weekend where a dump can happen. Hodl unless you know what you are doing and be cautious about your positioning if you are trading this.
Double Top is a real possibility...be prepared just in case. This kind of thing happens. In any case, your best security on BTC is to buy dips when they are available. If you can buy at the start of a parabolic, that works also.