Serve Robotics Adds 1,500 Merchants: Will the Margins Follow?

Serve Robotics (SERV) is demonstrating rapid expansion, with its merchant base growing fivefold year-over-year to 1,500 and Q1 gross margins improving 40% sequentially, alongside projected 60-75% QoQ delivery growth in Q2. While shares have surged 116.6% in three months, the company's aggressive investments are pressuring near-term profitability, leading to expected EPS losses and a high forward P/S ratio of 27.11x, significantly above peers. The outlook hinges on successful scaling and utilization improvements to justify its premium valuation and achieve long-term profitability.

Analysis

Serve Robotics (SERV) is in a phase of aggressive operational expansion, demonstrated by a fivefold year-over-year increase in its merchant base to 1,500 and a projected 60-75% sequential growth in delivery volume for Q2 2025. This top-line momentum, driven by fleet expansion to 2,000 robots by year-end and entry into new markets, is coupled with early signs of improving unit economics, including a 40% sequential improvement in Q1 gross margin. However, this growth comes at a significant cost, with scale-up expenses pressuring the bottom line, leading to widening loss-per-share estimates for 2025 to -$0.93, a 38.8% year-over-year decline. The market has priced in substantial future success, evidenced by the stock's 116.6% surge over the past three months and a premium forward price-to-sales multiple of 27.11x, which is significantly above peers like C3.ai (7.48x) and Cognex (5.8x). This valuation creates a high-stakes scenario where the company must translate its rapid scaling into sustained margin expansion and a clear path to profitability to justify investor optimism.

Key Decisions for Investors

• Given the stock's high forward P/S ratio of 27.11x, investors should recognize that current growth expectations are already priced in, making the stock highly sensitive to any shortfalls in execution.
• Monitor upcoming quarterly reports for two key metrics: continued sequential gross margin improvement above the 40% seen in Q1 and progress toward the 2,000-robot deployment goal, as these are critical for validating the long-term profitability thesis.
• For those holding or considering a position, the widening EPS loss estimates for 2025 highlight significant near-term risk, suggesting that any new capital allocation should be weighed against the uncertainty of achieving positive earnings comparisons starting in 2026.