Unity Stock on Fire, Surges 64% in 3 Months: Still Time to Buy?

Unity Software (U) stock surged 64% in the last three months, significantly outpacing the S&P 500 and peers, driven by the strong performance of its AI-driven Vector ad engine and robust adoption of Unity 6. The company reported better-than-expected Q2 2025 results, including 21% adjusted EBITDA margins and record $127 million free cash flow, alongside expanding strategic partnerships and 10 consecutive quarters of non-gaming subscription growth. This operational momentum and financial discipline have led to sharp upward revisions in 2025 and 2026 earnings estimates, indicating sustained positive outlook despite a premium valuation.

Analysis

Unity Software has demonstrated significant fundamental and market momentum, with its stock surging 64% over the past three months, vastly outperforming the S&P 500. This rally is underpinned by tangible operational successes, primarily the new AI-driven Vector ad engine, which drove 15% sequential revenue growth within the Unity Ad Network in Q2 2025 and is projected to support mid-single-digit sequential growth for the entire ad segment in Q3. Concurrently, the Create segment is showing strength with over 6.6 million downloads for Unity 6 and double-digit growth in subscription revenues. The company's strategic position is reinforced by key partnerships with industry leaders like Tencent, Scopely, and Nintendo, and diversification is evidenced by 10 consecutive quarters of growth in non-gaming verticals. Financially, Unity's execution is robust, delivering a 21% adjusted EBITDA margin, a record $127 million in free cash flow in Q2, and maintaining a strong balance sheet with $1.7 billion in cash. This performance has prompted sharp upward revisions to 2025 earnings estimates, which are now projected to grow 146.4% year-over-year. While the stock trades at a premium forward price-to-sales ratio of 7.9, this valuation is supported by superior growth prospects compared to peers and a clear, multi-faceted growth strategy centered on AI, ecosystem dominance, and enterprise expansion.

Key Decisions for Investors

• Given the strong momentum in both the Create and Grow segments, coupled with improving profitability and record free cash flow, the recent stock appreciation appears fundamentally justified, warranting a bullish outlook.
• Investors should monitor the sequential growth of the ad segment in the upcoming quarter to confirm the sustained impact of the Vector engine and track subscription rates for Unity 6 as a key indicator of its long-term platform stickiness.
• While the forward P/S ratio of 7.9 is at a premium, it should be weighed against the company's projected 146.4% EPS growth in 2025 and its strategic expansion into non-gaming industries, which could support a higher valuation.
• Consider the company's robust financial discipline and $1.7 billion cash position as a significant de-risking factor, providing flexibility to fund AI-driven growth initiatives without immediate reliance on capital markets.