The industry’s enthusiasm for a Bitcoin ETF (exchange-traded fund) appears to be waning — if you judge that by the dearth of new comment letters to the Securities and Exchange Commission in support of the investment vehicle.
The SEC received just seven comment letters from the public in response to a solicitation for feedback it had requested in February 2019. Of those, six urged the agency to reject the application. (That’s around 84%.)
Inappropriate use of percentages, first of all, I'd say.
I don't necessarily think that the interest in bitcoin ETFs are waning due to these negative responses, which are not binding in any way since they are just comments. I think that the market is finally somewhat recognising the fact that the exchange traded funds, even if they were to be approved, will most likely be used by institutions and will not benefit the bitcoin blockchain or its users. This is in contrast of the market previously hyping up ETFs as if they were going to solve bitcoin's long term scalability problems or something.
I certainly don't believe it's very likely that an approval will occur in the near future given the previous precedents with the SEC's decision. Most people saying that it will somehow get approved this time round or whatnot are purely speculating, and have no tangible proof to back it up.