BigBear.ai vs. Nebius: Which Tech Stock Is a Better Buy in 2026?
2026-10-09 01:09
•John Ballard •The Motley Fool
•••••• ••• Axe Cap view
Nebius Outshines BigBear.ai in AI Race for 2026
Nebius’s explosive growth and profitability beat BigBear.ai’s struggling defense software model.
BigBear.ai’s declining revenues and huge losses show that relying heavily on government contracts in defense tech is a tough road. The company reported a 19% revenue drop in 2025 and a significant $294 million net loss. Its concentration risk—over half of sales come from a few big customers—only worsens the outlook. Meanwhile, Nebius is sprinting ahead with a 479% revenue jump, positive net income, and a strong balance sheet. Serving the booming GPU cloud infrastructure market—a sector likely to scale to $1 trillion—Nebius looks well-positioned for further growth. South African investors should watch how this plays out mainly through USD/ZAR moves, as local AI tech exposure is limited. That said, Nebius’s heavy spending on capital assets means any slowdown in demand or capital availability could pressure its cash flow. We prefer Nebius for growth exposure but would avoid BigBear.ai until it shows a turnaround. this is just our opinion and not financial advice
Buy Nebius for exposure to high-growth AI infrastructure, but monitor cash flow closely. Avoid BigBear.ai due to shrinking revenues and profitability concerns.
- NBIS
- USD/ZAR
- Nebius’s capital-intensive model may hurt cash flow if market cools
- BigBear.ai’s customer concentration and sector competition remain headwinds
6/10
The article compares two AI-focused tech stocks with opposite market approaches. BigBear.ai provides defense and government intelligence software but faces declining revenue (down 19% in 2025) and mounting losses ($294M net loss). Nebius Group operates AI cloud infrastructure with explosive 479% revenue growth in 2025 and positive net income of $82M, though it carries massive negative free cash flow due to capital-intensive GPU infrastructure spending. The author recommends Nebius as the better buy, citing its larger addressable market ($1 trillion GPU cloud opportunity), consistent profitability, and superior growth trajectory compared to BigBear.ai's struggling government contract model.
Our take is based on reporting first published by The Motley Fool.