FLS vs IR: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of October 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.

Reading it: FLS is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

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. FLS and IR 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 FLS and IR 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.

Flowserve Corporation is one of the world's largest suppliers of flow-control equipment. It designs, makes, and services pumps, valves, actuators, and mechanical seals used to move and control liquids and gases in demanding industrial settings. The business runs through two segments: Flowserve Pumps and Engineered Solutions (its larger unit, including seals) and Flow Control (valves and automation). A defining feature is its large installed base, which drives a high-margin aftermarket business of spare parts, repairs, and service that generates recurring revenue even when new-project orders slow. Its end markets skew to oil and gas, chemicals, general industries, power generation, and increasingly water.

Full FLS guide

Ingersoll Rand is a global industrial-technology company built around mission-critical air, fluid, gas, and medical technologies. It operates through two segments: Industrial Technologies and Services, which sells air compressors, vacuum and blower systems, air treatment, power tools, and lifting equipment; and Precision and Science Technologies, which makes highly engineered pumps and fluid-management systems for medical, life-science, and specialty industrial uses. The company was formed in 2020 when Gardner Denver merged with the Industrial segment of the old Ingersoll-Rand, and it sells under brands such as Ingersoll Rand, Gardner Denver, Nash, and many acquired niche names. A large share of revenue comes from aftermarket parts, consumables, and service on a big installed base, which makes results steadier than a pure equipment maker. Ingersoll Rand is headquartered in Davidson, North Carolina.

Full IR guide

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

• FLS drivers: Aftermarket and installed base; 3D growth strategy and new end markets.
• IR drivers: IRX operating system and margins; Disciplined bolt-on M&A.

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: Flowserve's orders are cyclical and tied to capital spending in oil and gas, chemicals, and power, which can fall sharply when commodity prices or industrial demand weaken. For IR, ingersoll Rand's end markets are cyclical and tied to global industrial capital spending, manufacturing activity, and specific verticals like energy and semiconductors, so downturns can slow orders and short-cycle revenue.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick FLS if you believe its drivers more; IR 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 FLS and IR guides.

FLS. At about 25 times trailing and 15 times forward earnings and roughly 2 times sales, Flowserve is priced for the margin gains and back-half growth that analysts expect, and the 10 covering analysts have a mean target near $88. The stock is up about 40% over one year but flat in 2026, so the October 28 report (consensus EPS $0.98 on $1.24 billion of revenue) will test whether that growth arrives.

IR. At $78.60 on October 16, 2026, Ingersoll Rand traded near 20 times forward earnings and about 17 times EV/EBITDA, a premium to the average industrial that reflects its aftermarket mix and IRX execution but is lower than earlier in the year after the shares fell from a 52-week high near $101. Analysts expect adjusted EPS of about $3.55 for 2026 (inside the $3.45-3.57 range management set at the start of the year) and about $3.91 for 2027. Third-quarter results on October 29, 2026 carry consensus of about $0.90 a share on $2.05 billion of revenue.

Headline figures (approximate, October 2026): FLS shows revenue (ttm) ~$4.6 billion (Q2 2026 down ~1.6% yoy), operating margin ~14% (gross margin ~35%), net income (ttm) ~$371 million, p/e (trailing / forward) ~25x / ~15x; IR shows revenue (ttm) ~$7.9 billion, revenue growth (q2 2026, yoy) ~8.5% (Q2 revenue ~$2.05 billion), margins (ttm) Gross ~43%; operating ~17%; net ~12%, adjusted eps (q2 2026) $0.86 vs $0.83 estimate.

FLS and IR 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 FLS and IR exposure against your real portfolio. It is not an investment adviser.