it depends on the news and the timing of it. also it depends on the market itself too.
for example bitcoin market is a lot bigger than any altcoin market so the new effect on bitcoin is not the same as the effects on altcoins. a simple news can push an altcoin up or down a lot more than it can bitcoin's price.
also the reality of the news and the history of the effects of such news can make a difference. for example when an exchange is hacked there will be panic but also speculators expecting a price drop so the price WILL drop. or when a shitcoin is listed on a big exchange it creates hype but also speculators know in the past it has led to price rise so they buy it and price WILL rise.
It depends also upon how strong the news is. In technical analysis, there is so called priced in. It came from the news that spread out, maybe good or bad. If the news is much more stronger, expect that the price will move according to it but if the news get exhausted, there is a tendency that the price will reverse.
In some case, the news about ETF affected the crypto market. BTC and ETH fall down when the delayed ETF news exploded. But when the news getting exhausted, many people bought bitcoin and there is a good result.