In a calculated move to draw in more investors, Invesco and Galaxy Asset Management have slashed the fee of their joint Bitcoin (CRYPTO: BTC) exchange-traded funds (ETFs). What Happened: The issuers have trimmed down the fee of their spot Bitcoin ETF from 0.39% to 0.25%. This aligns the sponsor fee for the Invesco Galaxy Bitcoin ETF (BTCO) with that of most competing issuers. Only a select few, such as Ark, 21Shares, Bitwise and Franklin Templeton, extend lower fees compared to the rest, reported CoinDesk on Monday. Additionally, Invesco has pledged to waive fees for the initial six months or …