Shares of quantum computing company IonQ ( IONQ 5.48%) raced higher this week. The stock was up by 28.5% as of Friday morning, according to data provided by S&P Global Market Intelligence.

Rigetti Computing and D-Wave Quantum, the second- and fourth-biggest gainers in the Russell 3000 Index on Tuesday, were up 14% and 16%, respectively. Peers Quantum Computing and I

In a highly speculative quantum computing market, it is judicious for investors to take a wait-and-watch approach before investing in Rigetti and IonQ stocks.