@DevNullProd specializes in XRP intelligence and tweets out statistics about the XRP ledger, automatically, every single day.
Today around 5:00 AM PST they tweeted out that 581,629.689 Bitcoin were delivered by the XRP ledger in the span of 1 hour, which is nearly $5 billion dollars. (They were BTC IOU’s on the XRPL)
This likely was initiated by 1 institution, and they used the XRP ledger because they would have had to wait around an hour if they used Bitcoin.