Maybe I'm misunderstanding what Kucoin Shares are. Are they not just shares in other bitcoin markets? It looks to me like it's just a "currency exchange", really. Or are you actually buying shares in some underlying company that provides value? If it's the latter, then sure, it's like buying shares on eTrade. But if there's no underlying company or product you're investing in, then I don't seem them as being similar at all.