Why was Bitcoin up on Jul 20, 2026, 6:28 PM UTC?

Bitcoin is up 1.81% over 24 hours with minimal intraday movement (0.02% in 15min, 0.19% in 1h), suggesting the gains came earlier in the day. The news mix is broadly positive (regulatory clarity in Nigeria, mining sector strength, major holder stability) but none are dramatic enough to explain a 1.81% move, so this likely reflects accumulating positive sentiment rather than any single catalyst.