United Launch Alliance is preparing its Vulcan Centaur rocket for a major national security mission from Cape Canaveral, a flight that will test whether this new workhorse can deliver for the U.S.

In the latest close session, Rocket Lab Corporation (RKLB) was up +1.05% at $88.90. The stock outpaced the S&P 500's daily gain of 0.03%. On the other hand, the Dow registered a loss of 0.58%, and the ...