A company that mines uranium will probably do well if the price goes up, but not if the price goes up because their mine closed or got blocked for geopolitical reasons. A company that produces reactor components should tend to do worse if uranium prices rise, but in practice the demand for new reactors is driven by other factors.

If you want exposure to the price of uranium, you would do better with the Sprott Physical Uranium Trust [0]. The CME also lists uranium futures [1], but they don't seem to trade.

[0] https://sprott.com/investment-strategies/physical-commodity-...

[1] https://www.cmegroup.com/markets/metals/other/uranium.volume...