This story is available exclusively to Business Insider subscribers. The stocks aren't related, of course, and their moves are pegged to different pieces of news during the day. Feds want more involvement in private firmsOn Tuesday, Pfizer stock started rising after the White House announced the launch of TrumpRx, a digital marketplace for discounted pharmaceuticals. The highest-profile example is the White House's deal for a stake in Intel, which sent shares of the beleaguered chipmaker soaring. Nvidia will invest $100 billion in the ChatGPT maker to acclerate construction of its datacenters, which will host Nvidia chips.