So, we all know that since it was created back in the Reagan Administration, the PPT has intervened at various times to prop up the stock market. Now as a result of the new FED facility to provide swap and credit lines to foreign central banks, the FED, which is not allowed to buy stocks themselves, (PPT is a Treasury operation even though the FED actually does the trading for them.) has the foreign banks doing the buying for them. See attached link for article about this from “Wall Street On Parade”

Meet the Fed’s Global Plunge Protection Team