U.S. stock futures mixed, Nasdaq 100 falls 200 pts. Rivian (RIVN) drops after public offering announcement. Other stocks also down in pre-market.

17:23 EDT Rivian (RIVN) down 8% at $18.60 after announcing 75M share equity offering4th of July Sale - 70% Off Unlock powerful investing tools ...

Rivian Automotive, Inc. Announces Commencement of Underwritten Public Offering of Common Stock