Big-picture money
Interest rates, inflation numbers and the mood in stock markets often affect crypto too, because investors move money between all risky assets together.
Rules and court cases
A new law, an exchange being sued or an ETF decision can change what large investors are allowed to do, and prices react.
Money flowing in and out of funds
Large inflows to or outflows from Bitcoin ETFs show what big investors are doing day to day.
Liquidations
When many traders who borrowed money are forced to sell at once, the price can drop faster than the news alone would explain.
Hacks and failures
A major exchange hack or a stablecoin losing its peg can shake confidence in the whole market.
A caution
Explanations given after the fact are guesses. Several things usually happen at once, and we label what the sources actually report.
This is general education, not financial advice. Crypto can lose value quickly; never put in money you cannot afford to lose.