Check out the companies making headlines before the bell: Opendoor Technologies — The online real estate startup popped more than 13%, extending a rally powered by retail traders chasing meme stocks. Opendoor, which has often been cited on Reddit’s WallStreetBets forum, is ahead more than 500% this month. Trading volume exploded to 1.9 billion shares Monday, more than 1,700% of the three-month average, according to FactSet. General Motors — Shares tumbled nearly 4% despite the automaker beating sales and profit expectations in the second quarter. Adjusted earnings before interest and taxes of $3.04 billion were higher than analysts estimated, but down more than 31% from a year ago. Lockheed Martin — The maker of the Air Force’s F-35 fighter bomber dropped 8% after quarterly revenue of $18.16 billion trailed analysts’ consensus estimate of $18.57 billion, according to LSEG. Earnings per share of $1.46 weren’t comparable to estimates. Lockheed also reported a $1.6 billion loss attributed to some defense programs, and management said the “ongoing program review process identified new developments that caused us to re-evaluate the financial position on a set of major legacy programs.” Coca-Cola — The soft drink maker dipped premarket after Coke topped Wall Street estimates for quarterly revenue and earnings. Coke also reiterated its full-year forecast for organic revenue growth and narrowed its o …
