Over the weekend, we reported  that in a move that will certainly not end well for investors, the New York Stock Exchange asked the SEC to approve five ETFs including 2x leveraged and inverse flavors, linked to Bitcoin futures - which launched in December on the CME amd Cboe, in line with what we speculated last August, that "we suspect a Bitcoin Futures ETF may actually occur before a Bitcoin ETF."

These latest ETFs submissions took the number of bitcoin ETFs pending approval to well over 10 as some of the most prominent asset managers are eager to jump on board the blockchain mania.

However, while the rush into the space is hardly surprising in light of the blistering surge in cryptocurrencies, what was unexpected is that overnight, two U.S. companies shelved proposals to launch bitcoin exchange-traded funds, citing ongoing concerns by the Securities and Exchange Commission, filings showed on Monday.