To be honest, bitcoin (BTC) is still considered the de-facto first port-of-call for investments just because of its ability to fluctuate.

However, as the market matures and the curve is flattening (like the current covid-19 in some countries).

Moreover, with the halving event taking place, the lesser supply into the overall pool will also stabilize the market a little more too.

The trend is determined mainly by the "whales" as they control a large stake in the whole BTC pool.

Unfortunately, that means that them buying or short selling will affect the price quite a bit (and people then to follow their lead in a bull-run or otherwise).

The long-term potential for cryptocurrency is still there though.

You may refer to this article I read quite recently regarding the potential towards full-capitalisation for crypto assets.

https://medium.com/datadriveninvestor/why-icos-fail-are-they-still-worth-3b9a20a6ad9c