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BigBear.ai Expands Gross Margin by 878 Bps: What Drives the Gains?

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Key Takeaways

  • BBAI's Q3 gross margin expanded 878 basis points to 31.2%, while revenues jumped 31% to $43.6 million.
  • Generative AI adoption fueled BBAI's margin gains, with backlog rising 22% sequentially to $330 million.
  • BigBear.ai raised 2026 revenue guidance to $150-$165 million, but negative EBITDA remains a challenge.

BigBear.ai Holdings, Inc. (BBAI - Free Report) delivered significant profitability improvement in the third quarter of 2026, with gross margin expanding 878 basis points year over year to 31.2% from 22.4%. The improvement was driven primarily by the growing contribution from its generative AI platform, acquired through the Ask Sage transaction in December 2025, alongside stronger revenue performance.

Quarterly revenues increased 31% year over year to $43.6 million, marking the company's third consecutive quarter of organic revenue growth. Gross profit climbed approximately 83% to $13.6 million from $7.4 million, highlighting improving operating economics.

Can BigBear.ai Sustain Its Margin Expansion?

BigBear.ai's generative AI platform is emerging as a key growth and margin catalyst. The platform enables government agencies and critical industries to securely access advanced AI models, develop agentic workflows and process sensitive information in secure environments.

Growing adoption across federal agencies, including the FBI, NASA, U.S. Coast Guard and Department of Energy, strengthens the platform's expansion opportunities. Its focus on specialized, mission-ready AI solutions also supports differentiation in complex security and defense markets.

Moreover, BigBear.ai secured more than 25 contracts representing over $225 million in value since the second quarter. Backlog increased 22% sequentially to $330 million, enhancing future revenue visibility.

However, profitability challenges persist. Adjusted EBITDA remained negative at $9.1 million, while selling, general and administrative expenses increased to $31.3 million.

Management raised its 2026 revenue guidance to $150-$165 million. Sustained generative AI adoption, favorable revenue mix and effective cost management will be crucial to translating gross margin gains into stronger operating profitability.

How Does BigBear.ai's Margin Performance Compare With AI Rivals?

BigBear.ai faces competition from Palantir Technologies Inc. (PLTR - Free Report) and C3.ai, Inc. (AI - Free Report) in the expanding market for enterprise and government-focused artificial intelligence solutions.

Palantir benefits from strong demand for its Artificial Intelligence Platform (AIP), particularly across government, defense and commercial markets. Palantir's third-quarter 2026 revenues surged 96% year over year to $2.31 billion, reflecting accelerating AI adoption. Palantir's scalable software platform and expanding customer base supported a gross margin of approximately 83.4%, highlighting its considerable profitability advantage over BigBear.ai. Continued deployment of AIP could further strengthen Palantir's operating leverage.

Meanwhile, C3.ai provides enterprise AI applications across defense, manufacturing, energy and other industries. C3.ai reported a GAAP gross margin of 31% in fiscal 2026, reflecting pressure from weaker subscription revenues and higher costs. Although C3.ai maintains a subscription-focused business model, profitability challenges persist. BigBear.ai's improving revenue mix and generative AI adoption could strengthen its competitive positioning against C3.ai.

BBAI’s Price Performance, Valuation & EPS Estimate Trend

Shares of BigBear.ai have gained 6.5% over the past month, outperforming the Zacks Computers - IT Services industry, as shown below.

BBAI’s 1-Month Price Performance

Zacks Investment Research
Image Source: Zacks Investment Research

BBAI stock is currently trading at a discount compared with the industry peers, with a forward 12-month price-to-sales (P/S) ratio of 6.98, as evidenced by the chart below.

BBAI’s Valuation (P/S F12M)

Zacks Investment Research
Image Source: Zacks Investment Research

The Zacks Consensus Estimate for BBAI’s 2026 and 2027 loss per share has widened to 41 cents and 25 cents in the past 30 days, respectively, as shown below. However, the estimated figure indicates a narrower loss than the year-ago loss of 82 cents per share for 2026.

EPS Trend of BBAI

Zacks Investment Research
Image Source: Zacks Investment Research

BBAI’s Zacks Rank

BigBear.ai currently carries a Zacks Rank #4 (Sell).

You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.

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