Quantum computing is full of David-versus-Goliath competitions.

Quantum computing is an interesting sector to invest in, as there are two primary ways to capture gains in this space. The first option is to pick a legacy tech company that is investing heavily in quantum computing technology. One of my favorites in this category is Alphabet ( GOOG 0.56% ) ( GOOGL 0.51% ) .

Another popular way to gain exposure in the quantum computing space is to pick a pure play, like Rigetti Computing ( RGTI -3.17% ) . There is no backup plan for a company like Rigetti Computing; it's quantum computing relevancy or bust. This makes a stock like Rigetti incredibly risky, but it also has much higher return potential versus a small company, or versus the multi-trillion-dollar behemoth

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