From the mind of Tom Clancy:

  The Campus operates under the cover of Hendley Associates, a financial 
  trading institution. Hendley Associates is a trader in stocks, bonds, and 
  international currencies, though, it does little in the way of public 
  business and is not known to have any clients. . . . By intercepting 
  communications between the CIA and NSA, the Campus is able to take advantage 
  of SIGINT they gather and cross-deck to the CIA. This gives The Campus 
  currency-trading troops the best sort of insider information, which enables 
  the organization to make a ton of long-term money without anybody really 
  noticing. . . .

https://jackryan.fandom.com/wiki/The_Campus