The first-ever cryptocurrency exchange-traded funds (ETFs) that were introduced in Hong Kong earlier this year have experienced subpar performance and a lack of investor interest, despite the initial excitement surrounding their launch. What Happened: A recent report by Nikkei Asia revealed that these ETFs, which monitor the performance of leading currencies like Bitcoin (CRYPTO: BTC) and Ethereum (CRYPTO: ETH), have all recorded negative returns since their inception. ChinaAMC Bitcoin ETF, the biggest fund tracking the spot price of Bitcoin, was down 6.69% at the end of August, while Bosera H…