[hobermallow]

Yes there is a record for most trades done. The regulating body depends on the type of instrument (equities, options, futures, fixed income, etc.)

The Consolidated Audit Trail (CAT) is the primary location for this data as it relates to equities. https://www.finra.org/rules-guidance/key-topics/consolidated...

The settlement cycle also dictates the frequency of reporting for many investment instruments. https://www.finra.org/investors/insights/understanding-settl...