https://www.bcg.com/publications/2021/building-quantum-advantage
Equity investments in quantum computing nearly tripled in 2020, the busiest year on record, and are set to rise even further in 2021. IonQ became the first publicly traded pure-play quantum computing company, at an estimated initial valuation of $2 billion.
BCG estimates that quantum computing could create value of $450 billion to $850 billion in the next 15 to 30 years. Value of $5 billion to $10 billion could start accruing to users and providers as soon as the next three to five years if the technology scales as fast as promised by key vendors.