BigBear.ai vs. Five9: Which AI Stock Should You Buy Now?

AI Innovations: A Close Examination of BigBear.ai and Five9

In the rapidly evolving realm of artificial intelligence (AI), companies are locked in a competitive race to harness its potential across various sectors. Two notable players, BigBear.ai (BBAI) and Five9 (FIVN), stand out for their divergent approaches and fiscal performance, attracting considerable investor interest. While BigBear.ai is carving its niche in government and defense markets with AI-driven decision intelligence, Five9 is revolutionizing the commercial space with cloud-based contact center solutions enriched by generative AI. This article delves deeper into the fundamentals and signs of growth for both companies to provide insight into their investment potential.

BigBear.ai: Strategic Moves Amid Uncertainty

At a crucial juncture, BigBear.ai is reorienting its strategy under the leadership of new CEO Kevin McAleenan. With a distinct focus on national security, the company’s expertise lies in employing AI to enhance critical military and infrastructure operations. Through platforms like Orion and ConductorOS, BigBear.ai is addressing complex issues critical for defense and homeland security.

Backlog Signals Future Success

BigBear.ai has reported a remarkable backlog growth of 30% year-over-year, totaling $385 million. This growth is indicative of increasing client confidence, notably through recent partnerships, such as its collaboration with Austal USA and contracts with the Department of Defense for the Orion platform.

Challenges Looming

Despite a promising backlog, BigBear.ai’s financial outlook remains precarious. The company revealed a revenue of $34.8 million for Q1 2025, falling short of expectations with only 5% growth compared to the previous year. An adjusted EBITDA loss of $7 million emphasizes the pressing need to manage rising R&D expenditures and overcome delays in federal funding. Although the company holds $108 million in cash—a significant increase compared to prior periods—ongoing losses present a substantial risk to investors.

Five9: Capitalizing on Generative AI for Customer Experience

In stark contrast to BigBear.ai, Five9 stands as a mature player in the enterprise Software as a Service (SaaS) market, particularly within customer experience optimization. With its AI-based platform, “Genius,” Five9 seamlessly integrates with existing enterprise software like Salesforce and ServiceNow. This platform offers comprehensive features such as self-service AI agents, transcription, and intelligent routing—critical components for brands aiming to enhance customer service through automation.

Strong Financial Performance

Five9 posted impressive figures in its Q1 2025 results, reporting revenues of $279.7 million—an increase of 13.2% year-over-year. Subscription revenue, which represents 80% of total revenue, experienced a 14% growth, while enterprise AI revenue surged by 32%. Notably, the company achieved record free cash flow of $34.9 million, alongside an adjusted EBITDA margin of 18.8%, indicating robust operational execution.

Strategic Partnerships Amplifying Growth

Five9 is not merely resting on its laurels; it is intensifying AI adoption among its client base through its AI Blueprint program, achieving a remarkable 50% conversion rate. Strategic alliances with tech giants like Salesforce, Google Cloud, and IBM Watson further bolster Five9’s market position. The recent launch of Five9 Fusion improves this integration, enhancing customer experience capabilities within Salesforce by leveraging native AI functionalities.

Comparative Stock Performance: A Glance at BBAI and FIVN

Examining stock performance, BigBear.ai has experienced a 13% increase over the last three months, yet it remains down by 10.1% year-to-date. In contrast, Five9’s stock has fluctuated with a decline of about 13% in the last quarter and 34% year-to-date due to concerns regarding growth trajectories and broader market conditions. However, its recent performance resurgence post-Q1 results has prompted a measure of optimism among analysts.

Valuation Considerations

BigBear.ai’s stock is valued around $4.00 per share, corresponding to a 6.59x forward price-to-sales ratio, which stands significantly higher than Five9’s valuation of approximately $26.85 per share and its 1.71x ratio. Considering the software industry’s average metrics, Five9’s lower valuation amidst double-digit growth raises eyebrows, hinting at potential investment opportunities.

Earnings Outlook: A Divergence in Estimates

While Five9’s earning estimates trend positively, buoyed by optimistic analyst revisions, BigBear.ai’s metrics reflect a cautious approach. The earnings projection for FIVN suggests growth of 11.7% from the previous year. In contrast, BBAI faces a projected loss of $0.41 per share, which, while improvement over the previous year’s $1.10 loss, still signals uncertainty in translating growth into profitability.

Evaluating the Investment Landscape: BBAI vs. FIVN

While both BigBear.ai and Five9 are adeptly channeling AI to advance their business models, the two represent noticeably different levels of investment risk. BigBear.ai’s focus on government contracts, despite its potential for remarkable upside through contracts, marks it as speculative. Its current Zacks Rank #4 (Sell) reflects ongoing challenges and uncertainties in translating contracts into reliable revenue streams.

Conversely, Five9’s solid foundation in the AI software segment, showcasing consistent revenue generation and an established market presence, renders it a relatively safer investment option. Currently rated with a Zacks Rank #2 (Buy), Five9 is likely to see earnings revision driven by sustained growth within its customer base. As mentioned, with a notable pricing opportunity based on its previous stock performance, analysts foresee considerable upside potential for the following quarters.

In summary, the contrasting prospects of BigBear.ai and Five9 present investors with valuable insights as they navigate the rapidly evolving AI landscape. With distinct strategies, financial statuses, and market positions, both companies could play significant roles in reshaping industries, each in their unique capacity as leaders in AI innovation.

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