Stablecoin issuer Circle Internet Group Inc.’s stock stayed hot on Friday, in its second session of trading, and helped sparked gains in shares of other cryptocurrency-related companies. A lift also came from Robinhood Market Inc.

Just look at the robust demand for the initial public offering of Circle Internet Group, the leader in the world of stablecoins. The stock, which more than doubled in its first few minutes of trading before being halted three times,