Coinbase CEO Brian Armstrong mentioned popular crypto terms during an earnings call to pay off bets on prediction markets. This move sparked criticism for potentially manipulating those markets, with industry experts questioning the ethics of such actions. Armstrong later claimed it was a spontaneous decision.

Coinbase app code reveals plans for integrated prediction markets and tokenized stock trading. Independent researcher Jane Manchun Wong uncovered this through reverse-engineering the app's code, which hints at a collaboration with Kalshi, a regulated prediction-market operator. The company has yet to confirm these features ahead of a livestream event on December 17.