BigBear.ai Holdings Inc. (BBAI 2.67%) shares gained 2.6% to close at $7.10 on Monday, adding $0.18 per share as investors continued to respond positively to the company's recent strategic initiatives in aviation security. The stock has been gaining momentum following last month's announcement of a significant collaboration with Analogic, a global innovator in aviation security systems.Trading volume spiked dramatically to approximately 134 million shares, representing an 8% increase over recent norms and su ...