The CFTC oversees exchanges such as CME and their clearinghouses, and delegates day-to-day oversight of futures brokers to the nfa. It publishes the weekly Commitments of Traders report showing positioning by trader category.
Bitcoin and Ether are treated as commodities under its jurisdiction, though spot crypto exchanges are mostly outside its direct rulemaking.
Example: the CFTC's Commitments of Traders report shows large speculators net long a record number of gc contracts, which some traders read as a crowded position.
Related: nfa, sec, futures-contract, section-1256