Packaging Corporation of America (PKG) Q3 2026 earnings review
PCA's profit rises on box prices, but existing shipments dip
Packaging Corporation of America, the North American box maker, raised profit through higher prices while shipments from its existing plants slipped. Third-quarter revenue rose 12%, and profit per share excluding one-offs climbed 11% to $3.04, beating the company's own plan. Chief executive Mark Kowlzan credited earlier price increases and better output at the acquired Greif mills, and set a fourth-quarter profit outlook that implies 21% growth from a year ago by our math.
| Box shipments from plants owned a year ago | -0.5% per day from a year ago (total shipments +10.6%) |
|---|---|
| Revenue | $2,601.7M +12.5% from a year ago |
| Profit per share, excluding one-offs | $3.04 +11.4% from a year ago (planned $2.91) |
| Q4 profit per share outlook | $2.81 +21.1% from a year ago by our math |
⚖️ Verdict: 🟢 Bullish
The story got better because the first-half containerboard price increases and the acquired Greif mills are now lifting earnings past ongoing cost inflation. Greif added $0.13 per share after losing money a year ago, and higher box prices added $0.79 per share. One caution: in the plants owned a year ago, rising labor, freight and fiber bills ate $0.90 per share by our math, while daily box shipments fell instead of growing as planned.
The question now is whether the final piece of the summer price increase can outrun winter cost inflation and weak box volume from existing plants. Bulls see full mills and contract repricing lifting profit next year, while bears see freight, fiber and fuel costs taking almost all of the gain. Fourth-quarter packaging margins and daily shipments will settle it.
🐂 Bull Case
Higher Box Prices Drove the Profit Beat
Packaging Corporation of America (PCA), the third-largest maker of containerboard and corrugated boxes in North America, links most customer contracts to industry containerboard prices. After benchmark prices rose in the first half of 2026, higher prices and product mix in the packaging division added $0.79 per share to third-quarter profit compared with a year ago.
Those price gains lifted profit per share, excluding one-offs, by 11.4% to $3.04, beating the company's $2.91 plan. PCA attributed the $0.13 beat to "favorable price and mix in the Packaging segment and favorable earnings from the acquired Greif operations". Chief executive Mark Kowlzan said prices will rise again in the fourth quarter as the box maker continues to "implement earlier price increases".
What to watch: packaging price and mix per share in the fourth quarter. A positive sequential step would show that the June industry price increase is still flowing through customer contracts despite higher seasonal online retail volume, which carries lower margins.
Acquired Greif Mills Added Profit
PCA bought the Greif containerboard business in September 2025, adding two mills and eight box plants. Critics noted the acquired plants lost money for three quarters and warned that management planned to stop reporting their results separately after the third quarter, before investors can verify the deal's cost-saving targets.
In the third quarter, the acquired Greif operations earned $0.13 per share, reversing a $0.11 loss a year ago and beating the $0.08 to $0.09 range management indicated last quarter. Existing PCA mills also earned more by supplying extra containerboard to the acquired plants, which helped lift packaging volume profit by $0.12 per share.
What to watch: whether management discloses the annual cost-saving run rate on the conference call. Because this quarter is the last one before Greif laps its September 2025 close, investors need that figure to judge the return on the acquisition.
Full Mills Rebuilt Box Inventory
PCA spent the first half of 2026 running its containerboard mills at full capacity while its box inventory fell. Kowlzan said the company is now "realizing production benefits from projects at our Jackson mill as well as improved operating performance at the acquired Greif mills".
Mill output reached 1,489,000 tons in the third quarter, up 14.4% from a year ago by our math. That allowed the box maker to add 34,000 tons to its containerboard inventory since the second quarter "to efficiently supply our corrugated operations in the fourth quarter and help us continue to mitigate escalating freight costs", Kowlzan said.
What to watch: containerboard inventory change at year-end. Holding inventory steady through the fourth quarter's three scheduled mill maintenance shutdowns would show the upgraded Jackson and Greif mills can cover seasonal demand without costly extra rail or truck shipments.
🐻 Bear Case
Operating Costs Ate Most of the Price Gains
Kowlzan highlighted strong earnings "despite continued cost headwinds from freight, recycled fiber and chemicals". While the cost of making products fell 1.4 percentage points of revenue to 76.8% thanks to higher box prices, selling and overhead expenses rose 0.4 percentage points to 7.0%, and operating margin excluding one-offs barely budged, up 0.1 percentage points to 15.3%.
- Packaging price and mix in businesses owned a year ago: +$0.79 per share
- Labor and operating expenses: -$0.28 per share
- Freight expenses: -$0.26 per share
- Corporate and overhead expenses: -$0.13 per share
- Wood and recycled fiber costs: -$0.12 per share
Across the business PCA owned a year ago, higher costs took away $0.90 per share by our math, leaving just $0.07 of net earnings growth out of $0.96 in price, volume and paper gains. That means inflation is absorbing almost all of the pricing cycle inside the existing plants.
What to watch: the per-share cost bridge in the fourth quarter. If freight, labor and fiber keep taking more than $0.80 per share once the June price increase finishes rolling in, margins will shrink next year.
Box Shipments From Existing Plants Turned Negative
Total corrugated box shipments rose 10.6% from a year ago because the quarter included two extra months of the acquired Greif plants. On the previous conference call, management expected box shipments from businesses owned a year ago to grow about 2% in the third quarter.
Instead, shipments per day in the existing packaging business fell 0.5% from a year ago, even against a prior-year quarter when shipments had already dropped 2.7%. Kowlzan cited "some weakness in agricultural end markets in our corrugated business", and PCA noted that weaker box sales volume reduced earnings against its third-quarter plan.
What to watch: fourth-quarter daily shipments against Kowlzan's outlook for volume "at or around last year's fourth quarter level". A second negative reading would show customer box demand is softening while industry prices are high.
Three Mill Outages Will Cut Q4 Profit
After earning $3.04 per share excluding one-offs in the third quarter, Kowlzan set the fourth-quarter outlook at $2.81 per share. That represents an 8% drop from the third quarter by our math, even though total box shipments and containerboard prices are both slated to rise.
Two seasonal drags explain the sequential drop: scheduled maintenance shutdowns at three containerboard mills will lower output and raise repair costs, and winter weather will lift wood fiber, fuel and energy bills. Higher holiday online retail shipments will also shift the product mix toward lower-margin boxes.
What to watch: fourth-quarter maintenance outage cost per share on the conference call. Management previously estimated $0.63 per share for fourth-quarter outages, and any overrun would cut directly into year-end earnings.
Risks this quarter didn't answer
Three standing concerns from prior filings cannot be checked in the earnings release and await the conference call or the quarterly filing.
- Antitrust lawsuit: status of the Artuso Pastry Foods price-fixing suit is reported in the quarterly filing's legal note, not the release.
- Gas turbine power projects: permitting and timelines for the Riverville and DeRidder mill power plants were not mentioned; updates typically come on the call.
- Free cash flow and dividend coverage: operating cash flow is not in the release, while net interest expense jumped 67% from a year ago to $32.3 million; the cash flow statement in the quarterly filing will show whether free cash flow covered the dividend.
💲 Other KPIs
Paper sales grew 1.2% from a year ago, slowing from 7.9% growth in the second quarter as sales volume fell 2.5%. Segment operating profit fell 18.5% to $29.0 million because a scheduled maintenance shutdown at the International Falls mill reduced earnings by $0.04 per share.
Spending on plants and equipment rose 28.7% from a year ago to 9.5% of sales, up from 8.3% in the second quarter. Nine-month capital spending reached $617.9 million, while cash and marketable securities stood at $761.8 million, down 5.5% from a year ago.
Diluted shares fell 0.8% from 89.7 million a year ago and stayed unchanged from the second quarter. The lower share count from late-2025 buybacks added $0.02 per share to third-quarter profit compared with last year.
🔮 Guidance
New. The plan calls for $2.81 per share in the fourth quarter, up 21.1% from $2.32 a year ago but down 7.6% from the third quarter by our math. That puts full-year profit at $10.59 per share by our math, up 7.6% from 2025. PCA beat its quarterly target by an average of 2.8% over the last four quarters; if the pattern holds, fourth-quarter profit would reach $2.89.
New. Kowlzan expects daily box shipments to match last year's fourth quarter, compared with the 0.5% decline in the existing business during the third quarter. Even with two fewer shipping days than in the third quarter, total fourth-quarter shipments are slated to rise sequentially on seasonal demand.
New. The box maker expects average prices to rise again as earlier containerboard price increases finish rolling through customer contracts. However, higher fourth-quarter online shopping shipments will shift the product mix toward lower-priced boxes.
Unchanged. Management scheduled maintenance shutdowns at three containerboard mills in the fourth quarter, which will cut mill output and lift repair expenses compared with the third quarter. On last quarter's call, the finance chief estimated fourth-quarter outage expenses at $0.63 per share.
New. After the back-to-school third quarter, white paper sales volume is slated to drop seasonally in the fourth quarter while realized paper prices edge higher.
New. Kowlzan expects cost inflation to continue across the board in the fourth quarter: higher diesel fuel prices will push up freight bills, recycled fiber prices will keep rising, and colder weather will lift wood fiber, chemical and energy costs.
❓ Key Questions
What is the acquired Greif business's EBITDA and synergy run rate?
The release gave Greif's $0.13 per share earnings contribution for the last time before the acquisition laps its close, but did not update the $240 million base EBITDA or the $30 million year-end cost-saving target.
Did all remaining Greif plants finish moving onto PCA software?
Last quarter management pushed the final plant computer conversions into the fourth quarter and kept the transition services agreement running through year-end. Investors need to know when integration charges will stop.
How much of the June price hike remains for Q4?
Higher box prices added $0.79 per share in the third quarter, but inflation took $0.90. Knowing how much contract repricing is left for the fourth quarter will show whether price gains can still outrun rising winter costs.
Why did existing box shipments miss the 2% growth target?
Shipments per day in businesses owned a year ago fell 0.5% against management's 2% expectation on the July call. Was the miss limited to agricultural customers, or did broader retail and industrial box orders slow in August and September?