Stock Movers Fannie, Freddie Place Large Bids for Mortgage-Backed Securities; Pfizer Says Lyme Vaccine Was Effective; DraftKings Rises
Mar 23, 2026
Coverage of Fannie Mae and Freddie Mac placing large orders for mortgage-backed securities amid market volatility. Discussion of Pfizer reporting a 73% effective Lyme vaccine in trial results. Markets react as DraftKings and Flutter climb following news of proposed bipartisan legislation on prediction-market sports betting.
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Fannie And Freddie Step Into MBS Market
- Fannie Mae and Freddie Mac have started buying large amounts of mortgage-backed securities to calm volatility.
- The purchases follow President Trump's earlier directive to acquire $200 billion in MBS and aim to counter rising yields tied to Middle East tensions.
Pfizer Reports Promising Lyme Vaccine Results
- Pfizer reported its experimental Lyme vaccine showed 73% efficacy in a trial with fewer-than-expected cases.
- The low case count made assessing large-scale effectiveness difficult, but the result offers encouraging progress where no human vaccine currently exists.
Cover Up To Reduce Lyme Risk
- Prepare for tick season by covering up despite hot weather to reduce Lyme risk.
- Alexis Christophorus recommends pulling socks over pants and wearing long sleeves as practical prevention.