Since last week, the first US ETFs that invest directly in Bitcoin have begun trading. Billions of dollars changed hands, with the token briefly surging past $49,000 following the US SEC approval of such ETFs. But now, Bitcoin has posted its worst streak in about a month, dropping for four straight days - the worst such run since mid-December. So has the ETF optimism now evaporated? On Money in the Market, Hongbin Jeong speaks to Suvashree Ghosh, Crypto Currency Reporter for APAC at Bloomberg to find out how Bitcoin has since responded to the latest development, and how the new spot Bitcoin ETFs fared in the past first few trading days.