Reddit Has Been One of the Worst Stocks in the S&P 500. Here's Why It's a Buy.

The market is still treating RDDT like a vulnerable ad-cycle story, but the mechanism here is more powerful: improving user scale plus unusually fast U.S. monetization creates operating leverage that can keep EPS compounding even if revenue growth normalizes. The key is not whether growth is high today; it is whether management can preserve a premium growth rate while the business transitions from “growth at any cost” to “high incremental margin,” which is what justifies a premium multiple.

Second-order winners are the ad budgets that need high-intent communities, not broad-reach impressions. If Reddit keeps converting users without squeezing the ad load too hard, it can pull spend from lower-trust social inventory at SNAP and, to a lesser extent, PINS, especially for performance advertisers hunting incremental reach. The hidden risk is dependency on search referrals and platform traffic quality: if that softens for even one or two quarters, the stock can rerate down quickly because the valuation assumes the current engagement slope persists.

The consensus may be underestimating how much of the upside is already in the valuation. At roughly 30x forward earnings, the stock is not expensive if growth stays north of 40% and margins keep expanding, but it becomes fragile if U.S. user growth slows into the mid-single digits or ARPU growth decelerates meaningfully. AI data licensing is optionality, not the thesis; if investors start capitalizing it as durable recurring revenue before disclosure proves it, that is a setup for disappointment over the next 1-3 quarters.