Stock Market Today, April 28: BigBear.ai Rises on Heavy Volume Ahead of Earnings as AI Defense Stocks See Increased Trading Activity
2026-04-28 17:31:40 ET
BigBear.ai (NYSE:BBAI) , an AI-focused company serving defense and digital identity sectors, closed Tuesday at $4.12, up 10.46%. The stock advanced as investors responded to increased trading activity and anticipated the upcoming fiscal first-quarter earnings report, with attention shifting toward demand trends in defense-related artificial intelligence.
The company’s trading volume reached 64.9 million shares, which is about 54% above compared with its three-month average of 41.9 million shares. BigBear.ai went public in 2021 and has fallen 58% since its IPO.
S&P 500 (SNPINDEX:^GSPC) slipped 0.48% to 7,138.8, while the Nasdaq Composite (NASDAQINDEX:^IXIC) fell 0.90% to 24,663.80 as broader tech names faced pressure. Among information technology services peers, Leidos (NYSE:LDOS) closed at $146.15 (+1.32%) and Science Applications International (NASDAQ:SAIC) finished at $94.88 (+1.16%), both posting steadier gains than BigBear.ai’s move.
NASDAQ: SAIC
SAIC Trading
-8.47% G/L:
$112.295 Last:
106,530 Volume:
$113.42 Open:
