Broadcom stock plummets amid head-scratching CA deal

"We see no obvious business synergies between the businesses, aside from both being what Broadcom is calling 'mission-critical' technology businesses," Raymond James said in a research note.

Investors weren't buying it either, sending shares down sharply. As of 10:20 ET, shares were trading at $204.94, down $38.50 or 15.8%.