Don't forget all of the acquisition activity over the last ten years. Providian was bought by Washington Mutual, which was taken over by JP Morgan. Add to that

Don't forget all of the acquisition activity over the last ten years. Providian was bought by Washington Mutual, which was taken over by JP Morgan. Add to that BankOne from the early 2000s, Bear Stearns, several other regional banks, and their massive student lending network and it's not unbelievable that they reach so many "households" even those households don't bank directly with Chase.