Prospective spot bitcoin ETF issuers are able and ready to start trading as early as next week, if the Securities and Exchange Commission approves the necessary filings, according to three sources involved in the process.

But first, issuers and exchanges need to get some final filings ready.

Over the next three business days, Grayscale Investments is working toward the filing of an amended form 19b-4, according to a source. This is needed because previous paperwork was filed months ago and needs a refresh, the source said. This would likely first show up in a rulemaking section of the NYSE website.

The prospective spot bitcoin ETF issuers will also need to file final S-1 forms, laying out the fees, naming the authorized participants and removing any bracketed items, according to a …