CW vs MRCY: 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.

Reading it: CW 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. CW and MRCY 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 CW and MRCY 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.

Curtiss-Wright is a diversified industrial company that designs and manufactures highly engineered products for the aerospace and defense, commercial nuclear power, and general industrial markets. The company traces its roots to aviation pioneers Glenn Curtiss and the Wright brothers, but today it makes flow control systems, electronic components, sensors, actuators, and embedded computing for demanding applications. A large share of revenue comes from defense programs, including naval propulsion systems for US Navy submarines and aircraft carriers, where Curtiss-Wright holds entrenched sole-source positions. In commercial nuclear, it supplies pumps, valves, and reactor coolant equipment, and it is positioned for the small modular reactor buildout. The general industrial segment serves sensors, surface technologies, and industrial automation. Curtiss-Wright generates revenue through long-cycle program contracts, aftermarket parts, and service, with much of its defense and nuclear work protected by qualification barriers and multi-year backlogs. It is headquartered in Davidson, North Carolina.

Full CW guide

Mercury Systems, based in Andover, Massachusetts, designs and manufactures hardware, software, and integrated subsystems that sit inside US and allied defense platforms. Its portfolio spans radio-frequency and microwave components, digital signal processing boards, embedded and secure processing modules, and fully integrated sensor-processing subsystems used in radar, electronic warfare, signals intelligence, missiles, and unmanned systems. The company positions itself as a trusted, domestically sourced supplier of open-architecture processing, sitting one layer below the large prime contractors that build the finished aircraft, ships, and weapons.

Full MRCY guide

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

• CW drivers: Naval defense content; Commercial nuclear and SMRs.
• MRCY drivers: Record bookings and backlog; Margin recovery and turnaround execution.

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: Curtiss-Wright depends heavily on US defense budgets and naval shipbuilding schedules, which can slip and are subject to political appropriations risk. For MRCY, mercury is still early in a turnaround and has reported GAAP net losses as recently as fiscal 2025, so profitability remains inconsistent.

Pick CW if you believe its drivers more; MRCY 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 CW and MRCY guides.

CW. Curtiss-Wright trades at a premium multiple relative to broad industrials, reflecting its defense and nuclear backlog, sole-source positions, and consistent margin expansion. The financial profile is steady rather than explosive: durable long-cycle revenue, strong cash conversion, and disciplined capital returns through buybacks and a small but growing dividend.

MRCY. Mercury trades at a rich multiple of revenue for its size, reflecting investor expectations that the turnaround converts a large backlog into higher-margin, cash-generative earnings rather than trailing profits, which have been near breakeven. GAAP results still swing around losses, so traditional price-to-earnings is of limited use and much of the valuation debate centers on adjusted EBITDA and free cash flow. The stock traded roughly in the low-100s per share in mid-July 2026, well above its levels of a year earlier, with a reported beta below the market average near 0.84.

Headline figures (approximate, early 2026): CW shows revenue (ttm) ~$3.2 billion, operating margin ~18%, net income (ttm) ~$0.45 billion, revenue growth High-single-digit to low-double-digit; MRCY shows revenue (ttm) ~$943M, fy2025 revenue ~$912M (vs ~$835M FY2024), q3 fy2026 revenue ~$236M (+11.5% organic YoY), backlog ~$1.6B (record, +18% YoY).

CW and MRCY 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 CW and MRCY exposure against your real portfolio. It is not an investment adviser.