The Newest Stock in the S&P 500 Has Soared 315% Since Its 2019 IPO, and It's a Buy Right Now, According to Wall Street

Datadog (DDOG) is slated to join the S&P 500 on July 9, marking its inclusion as one of only five companies added to the benchmark in 2025, underscoring its robust market position. The cloud monitoring and security leader reported strong Q1 results, with revenue up 25% year-over-year to $762 million and free cash flow increasing 30% to $244 million, fueled by expanding customer relationships and product adoption. Despite a premium valuation, Wall Street maintains a highly bullish outlook, with 38 of 46 analysts rating it a 'Buy' or 'Strong Buy,' citing its significant growth trajectory and an estimated total addressable market of $175 billion by 2034.

Analysis

Datadog's impending inclusion in the S&P 500 index on July 9 marks a significant milestone, solidifying its position as a market leader and one of only five companies to achieve this status in 2025. This event is underpinned by robust financial and operational performance, as evidenced by the first quarter results where revenue grew 25% year-over-year to $762 million and free cash flow increased 30% to $244 million. The growth is fueled by a successful 'land-and-expand' strategy, demonstrated by a 13% increase in customers with over $100,000 in annual recurring revenue and a notable rise in multi-product adoption, with 51% of customers now using four or more products. Despite a premium valuation at 14 times forward sales, the article points to a forward PEG ratio of 0.4, suggesting potential undervaluation relative to its growth prospects. This outlook is strongly supported by Wall Street, with 38 of 46 analysts rating the stock a 'Buy' or 'Strong Buy', citing its leadership in the expanding observability and AIOps markets and a projected total addressable market of $175 billion by 2034.

Key Decisions for Investors

• Consider the imminent S&P 500 inclusion on July 9 as a potential near-term catalyst, which will likely drive demand from index-tracking funds.
• Evaluate the company's premium valuation in the context of its strong growth fundamentals, including 25% revenue growth and a forward PEG ratio of 0.4, which suggests the price may be justified by its expansion rate.
• Monitor key operational metrics such as the growth of customers spending over $100,000 ARR and multi-product adoption rates, as these are primary indicators of the success of its land-and-expand strategy.
• Factor in the overwhelmingly bullish analyst consensus, which provides a strong signal of institutional confidence in Datadog's ability to capture its large and growing total addressable market.