Smurfit Westrock is two years into the combination of Smurfit Kappa and WestRock, and the second-quarter print tests whether a sold-out mill system can outrun a freight shock that management now treats as the defining cost of the year. Paper demand is tight enough that brown grades are booked and commercial downtime has largely left the story. What has not left is the lag between announced containerboard increases and the converting contracts that still carry last cycle's freight bill. The investment debate is whether North American owner-operator work and the posted paper-price stack close that lag in the second half, or whether a mid-teens adjusted earnings before interest, taxes, depreciation and amortization margin is the new run-rate while the Medium-Term Plan still points at a much larger destination later in the decade.
Net sales edged higher to $8031 million as currency helped and price mix did not. Adjusted EBITDA slipped to $1140 million as the margin compressed from the mid-fifteens a year earlier. Freight is now a full-year headwind near $300 million, a multiple of the earlier internal estimate, and energy adds another large cost stack. North America still produces most of group profit, yet days-adjusted corrugated volume fell and the converting system only recently moved from a field of loss-making plants toward a thin positive margin. Europe held its margin and Latin America remains the high-return pocket. Cash from operations covered a still-heavy capital program in the quarter, but the first half left free cash flow negative after dividends.
Management now guides third-quarter adjusted EBITDA near $1300 million. Full-year adjusted EBITDA sits between $4900 million and $5100 million. That range is a cut from the April guide and sits close to last year's outcome. The newly posted North American containerboard increase of $100 a ton is framed as a platform for next year rather than a current-year rescue. Ordinary shares last changed hands near $44 on the byline date, inside a fifty-two-week range that still remembers both the post-combination optimism and the freight scare. The question the next two prints resolve is simple: does converting price catch freight, or does the market keep paying a packaging multiple for a plan that only works if North America finally behaves like the European system that bought it?