India, Oct. 28 -- Smurfit Westrock Plc (SW), a paper-based packaging company, Wednesday slashed its full-year 2026 earnings outlook and reported lower third-quarter profit, citing persistent cost inflation and weaker-than-expected converting volumes. Shares fell nearly 9% in premarket trading.

The company now expects full-year adjusted EBITDA of approximately $4.7 billion, down from its previous forecast of $4.9 billion to $5.1 billion. The revised outlook reflects continued cost pressures, including about $700 million in additional freight and energy costs, as well as weaker converting volumes.

Third-quarter profit fell to $222 million, or $0.42 per share, from $246 million, or $0.47 per share, a year earlier. Adjusted earnings were $0.4...