According to FINANCIAL TIMES, Grayscale and three other asset management companies have submitted applications to U.S. regulators to launch Bitcoin ETF products that use derivatives to mitigate or avoid risks. Specifically, this includes: Calamos Investments applying for four managed on-exchange ETFs; First Trust Portfolios applying for a 15% on-exchange ETF and a buffered ETF that protects against the first 30% of losses; Innovator ETFs applying for a 10% buffered product with a three-month operation cycle and a 20% managed on-exchange ETF with a 'participation rate' for three months; Grayscale Investments plans to launch a covered call Bitcoin ETF, generating periodic premium income by selling call options on the spot Bitcoin ETF.