This is a completely normal situation in crypto. You don't actually need any news for prices to increase. Most times, it might be due to an expected price increase based on a technical analysis perspective. For instance, while using trading tools like Support & Resistance or even the fibonacci retracement tools, there's a level price would get and it would exhibit a move that everyone is expecting ~ thus becoming a self fulfilling prophecy. So moves don't need a fundamental analysis action or news to pump up the price. People would just buy at those zones with the right TA.