IP vs SW: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. IP and SW share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined IP and SW exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

International Paper is a leading global producer of fiber-based packaging, pulp, and related products, best known for corrugated containers and the containerboard that goes into them. Its boxes carry everything from food and beverages to e-commerce shipments and industrial goods, so demand broadly tracks consumer and industrial activity. The company sells mainly to businesses rather than consumers, and its economics turn on containerboard pricing, box volumes, input costs like fiber and energy, and mill utilization. As a large, capital-intensive manufacturer, it competes on cost, scale, and its distribution and converting network.

Full IP guide

Smurfit WestRock (NYSE: SW) makes containerboard, corrugated boxes, and consumer packaging at industrial scale, operating roughly 500 converting plants and around 60 paper mills across some 40 countries with about 23 million tons of mill capacity. The company was created in July 2024 when Smurfit Kappa and WestRock combined to form the largest listed global packaging partner, pairing Smurfit's European operating discipline with WestRock's North American footprint and consumer-packaging lines. Its products serve food, beverage, e-commerce, industrial, and consumer-goods customers, and the business is closely tied to global trade volumes, retail demand, and the price of recovered fiber and energy.

Full SW guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• IP drivers: DS Smith integration and global scale; Cost cuts and footprint optimization.
• SW drivers: Merger synergies and capacity rationalization; Global scale and integrated fiber network.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: The main risk is cyclicality: box volumes and containerboard pricing move with consumer and industrial activity, so an economic slowdown can reduce demand and pressure pricing and margins, as recent low-single-digit volume softness showed. For SW, sW is deeply cyclical: containerboard pricing, box volumes, and recovered-fiber costs swing with the global economy and can compress margins quickly.

Pick IP if you believe its drivers more; SW if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the IP and SW guides.

IP. Figures are approximate and tied to the asOf date; verify live numbers before acting. Packaging producers like International Paper are cyclical, so trailing earnings can be distorted by restructuring charges and where box volumes and containerboard prices sit in the cycle. That makes forward margins, synergy capture, and the value the market assigns to the two separated companies more important to the thesis than a single point-in-time earnings multiple.

SW. SW trades as a large-cap cyclical value and income name, with a market cap near ~$24 billion against a revenue base of roughly ~$31 billion. Reported earnings have been depressed by merger-related costs and a tough cost environment, so headline P/E figures look elevated while forward estimates assume margin recovery. The ~4 percent dividend yield is a central part of the total-return case.

Headline figures (approximate, Jul 2026): IP shows transformation Completed DS Smith acquisition (Jan 2025); planned geographic split announced early 2026, synergy target At least several hundred million dollars from the DS Smith combination, 2025 segment strength North American packaging adjusted EBITDA grew sharply with margin expansion, 2026 earnings Expected to absorb substantial restructuring charges from footprint actions; SW shows revenue (ttm) ~$31B, q1 2026 net sales ~$7.7B, q1 2026 adj. ebitda ~$1.08B (~14% margin), market cap ~$24B.

IP and SW are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined IP and SW exposure against your real portfolio. It is not an investment adviser.