William Blair upgrades Karat Packaging stock rating on margin outlook By Investing.com

William Blair upgraded Karat Packaging to Outperform, citing expected market share gains, accelerating online sales, and gross margin recovery that could reach 38%-39% in 2H 2026 from 35.94% LTM. The firm also pointed to tariff policy benefits, including a potential tariff rate cut to 10% from 20% and an IEEPA reversal. Recent Q1 2026 results topped expectations, with EPS of $0.34 versus $0.26 consensus and revenue of $116.9 million versus $115.97 million.

Analysis

KRT’s setup is less about a one-quarter beat and more about operating leverage finally turning the right way. If tariff-related input relief holds, incremental margin should flow disproportionately because the business appears to have already rebuilt volume momentum; that creates a classic “double kicker” where mix improves exactly as cost pressure eases. The key second-order effect is that national-account wins and online acceleration likely compound each other: larger accounts validate the brand while e-commerce expands higher-margin repeat demand, reducing dependence on lower-quality wholesale growth.

The market is likely underappreciating how much of the upside is timing-sensitive. The valuation case is not that KRT is permanently cheap, but that a step-up in gross margin over the next 2-4 quarters could force estimate revisions before the full policy benefit is visible in reported numbers. That creates a window where the stock can re-rate on forward numbers even if the earnings inflection is only partially realized.

The main risk is that the thesis is crowded into macro policy rather than self-help. If tariff assumptions slip, or if customers absorb recent price reductions without restoring mix, the margin recovery can stall and the stock’s momentum could unwind quickly given the already strong run. A second-order downside is that competitors may respond with price aggression if KRT’s online channel gains become too visible, limiting the sustainability of market-share wins.

Consensus may be too linear in treating this as a simple multiple expansion story. The more interesting trade is that KRT could look like a near-term earnings revision candidate with asymmetric upside into the next two reporting cycles, while the fundamental debate on tariffs and gross margin can remain unresolved. In that setup, the stock can work even if the policy narrative is only partially correct, provided operating leverage keeps showing through.

Key Decisions for Investors

• Long KRT on pullbacks toward the 20-day moving average; target a 3-6 month horizon for estimate revisions to drive re-rating, with a stop if gross margin fails to expand sequentially next quarter.
• Buy KRT call spreads 3-6 months out to express upside from margin recovery while limiting premium at risk; this is the cleanest way to monetize policy-driven convexity.
• Pair long KRT / short a lower-quality packaging or foodservice peer with weaker margin trajectory over the next 1-2 quarters; the relative trade isolates policy and mix upside from sector beta.
• If KRT rallies another 10-15% before the next print, trim into strength: much of the easy momentum may already be in the price, and the thesis then depends on clean follow-through in online sales and gross margin.