Cboe BZX Exchange withdrew its VanEck/SolidX bitcoin exchange-traded fund (ETF) proposal on Tuesday, CoinDesk reports. According to a filing dated Sept. 17, a proposed rule change to publicly list shares of the VanEck SolidX Bitcoin Trust was withdrawn on Sept. 13. This filing marks the second time VanEck and SolidX withdrew the proposed ETF. The companies withdrew the same ETF proposal in January, after a prolonged government shutdown threatened to force a rejection.