Fastly (FSLY) Plunges 38% Despite Record Q1 Results
💡 Key Takeaway
Fastly's stock crashed because investors are more worried about slowing growth in its main business than they are impressed by its strong quarterly earnings.
What Happened to Fastly?
Fastly's stock price collapsed by over 38% in a single day, closing at $19.50. This dramatic sell-off came immediately after the company reported record first-quarter financial results. The company beat Wall Street's expectations, grew sales by 20%, and delivered a profit on an adjusted basis.
Adding to the positive news, Fastly's management team raised their long-term financial guidance for 2026. They now project the company can achieve 15% sales growth by that year. Despite these seemingly strong reports, the market reacted with a massive wave of selling.
The extreme reaction is highlighted by trading volume, which surged to 47.1 million shares. This is more than triple the stock's normal three-month average, indicating a flood of investors rushing for the exits. The drop erased a significant portion of the stock's gains from the past year.
While the broader market was mixed, the reaction among Fastly's peers was telling. Akamai Technologies saw its stock fall over 4%, while Cloudflare's shares rose more than 3%. This split shows investors are making nuanced decisions within the content delivery and security sector, not just fleeing the entire industry.
Why This Sell-Off Matters for Investors
The core issue for investors is a major shift in growth trajectory. While Fastly's overall revenue grew 20%, the growth rate of its primary Network Services business slowed sharply to just 11%. This segment is the company's historical foundation, so its deceleration raises red flags about the durability of Fastly's expansion.
Investors are essentially paying a premium for future growth, and signs of a slowdown in the main business make that premium look expensive. Fastly's stock was trading at a lofty 71 times its estimated forward earnings before the crash, a valuation that demands exceptional growth to justify.
The market is signaling that strong results from newer segments like Security and Compute, which grew 67% and 47% respectively, aren't enough to offset concerns about the core business. These newer units currently make up only about a quarter of total sales.
Furthermore, management's forecast that infrastructure spending will more than double as a percentage of revenue in 2026 adds another layer of concern. This implies future profits could be pressured by heavy reinvestment, making the current high earnings multiple even harder to sustain. The sell-off reflects a recalibration of risk versus reward.
Source: The Motley Fool
Analysis generated by Bobby AI quantitative model, reviewed and edited by our research team. This is not financial advice. Always do your own research before making investment decisions.
Bobby Insight

Avoid Fastly for now; the growth concerns and high valuation create too much risk.
The market has clearly lost confidence in the core business's growth story, and a valuation of 71x earnings is excessive for a company facing a growth deceleration. While the newer Security and Compute segments are promising, they are not yet large enough to carry the company, and rising capital expenditure forecasts add further uncertainty.
What This Means for Me


