PRLB vs SSYS: How Protolabs manufactures custom parts on demand and Stratasys Compare (2026)

Same yardstick, side by side (as of July 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: PRLB 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. PRLB and SSYS 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 PRLB and SSYS 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.

Protolabs manufactures custom parts on demand, using injection moulding, CNC machining, sheet metal and 3D printing, with an automated quoting system that turns an uploaded CAD file into a price and a lead time.

Full PRLB guide

Stratasys designs and sells industrial 3D printers and the materials that run on them, focused on polymer additive manufacturing for prototyping, tooling and end-use parts.

Full SSYS guide

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

• PRLB drivers: Digital quoting is the actual moat; Multiple processes under one supplier.
• SSYS drivers: Shift from prototyping toward production parts; Recurring materials revenue.

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: Growth has slowed considerably from the company's earlier trajectory, and Xometry has competed aggressively with an asset-light marketplace model that carries lower fixed costs. For SSYS, the additive manufacturing industry has repeatedly grown more slowly than forecast, and Stratasys has faced years of flat or declining revenue as a result.

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 PRLB if you believe its drivers more; SSYS 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 PRLB and SSYS guides.

PRLB. Protolabs sits between a manufacturer and a software company, and the market has debated which multiple applies. Verify current revenue growth, margins and the mix between owned and network capacity.

SSYS. Stratasys is best understood as a company whose addressable market is real but has arrived far more slowly than the sector's early enthusiasm implied. Verify current revenue, margin and cash position before drawing conclusions.

Headline figures (approximate, July 2026): PRLB shows business model On-demand custom manufacturing with automated quoting, processes Injection moulding, CNC machining, sheet metal, 3D printing, cost structure Owns factories, so fixed costs are meaningful, competitive pressure Asset-light marketplace rivals; verify current growth; SSYS shows business model Industrial 3D printers plus recurring proprietary materials, primary markets Aerospace, medical, dental, automotive prototyping and tooling, revenue trend Broadly flat to declining in recent years; verify current figures, profitability Has operated around or below breakeven; verify the latest quarter.

PRLB and SSYS 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 PRLB and SSYS exposure against your real portfolio. It is not an investment adviser.