On Friday, exchange operator Cboe resubmitted an application with the U.S. Securities and Exchange Commission (SEC), seeking approval for a Bitcoin (CRYPTO: BTC) exchange-traded fund (ETF) by asset manager Fidelity Investments. According to Reuters, Cboe said it would work with leading crypto exchange Coinbase Global Inc (NASDAQ: COIN) to ensure safeguards against market manipulation during the ETF launch process.