Yes we all know. It broke through the resistance that was holding bitcoin at the bottom of the market. The resistance was around $4200, which served as the top of the bottom of the market since November. The price has been edging up towards that for a while now, and was rubbing right up against it today, and it finally broke. Bottoming is over, likely the next multi-year bull run just started tonight. For reference, look at October 2015, same thing happened to start the last bull run.
Do you have the price chart for 2015?