[thedufer]

I strongly suspect that any sources that claimed that simply made the same error that you did.

Looking at the source you provided from the Chairman of the FDIC, it actually says that the top ten accounts held $13.3B - not _more than_ $13.3B, as you claimed. The next ten accounts necessarily held less than that, so say a generous upper bound at $26.6B for the top twenty accounts. In order for them to get at least half of the bailout, they would have needed to hold north of $55B in aggregate. The FDIC itself would have to have gotten the size of SVB's largest depositors wrong by over double in order for your original claim to be true, in the absolute most generous case.