It's amazing how a handful of words can deeply affect a stock's performance. During World War II, a common warning to keep potentially damaging quiet was implied by the common phrase "loose lips sink ships." Fast forward eighty-some years later, and we can apply that to the remarks of an executive at a key business partner of adtech company Magnite (MGNI 2.73%). These were taken to imply a sudden change in their relationship that was not beneficial to Magnite. The investor reaction was negative and lasting; ...