Two decisions made by the Securities and Exchange Commission in recent days could unleash a wave of new exchange-traded fund launches, let by crypto ETFs.The SEC recently approved generic listing standards for spot crypto ETFs, which removes the need for lengthy case-by-case approvals. This means faster launches across more cryptocurrencies.The regulatory door is now open for a wider range of crypto ETFs beyond existing bitcoin and ethereum funds, which have grown quickly. Digital currencies with smaller bu ...