AGIO vs CRSP: 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. AGIO and CRSP 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 AGIO and CRSP 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.

Agios Pharmaceuticals develops medicines for rare hematologic (blood) diseases. Its lead product, mitapivat, is an oral pyruvate kinase (PK) activator sold as PYRUKYND for PK deficiency and, following a 2026 approval, as AQVESME for thalassemia. The company is pursuing accelerated approval of mitapivat in sickle cell disease and, as of July 2026, the FDA granted Priority Review to that application. Agios previously sold its oncology business to Servier in 2021, which left it focused purely on hematology and entitled to a royalty on US net sales of Servier's brain-cancer drug Voranigo (vorasidenib).

Full AGIO guide

CRISPR Therapeutics AG is a Swiss-American biopharmaceutical company headquartered in Zug, Switzerland, with principal research operations in Boston, Massachusetts. The company uses its proprietary CRISPR/Cas9 platform to develop gene-based medicines across hemoglobinopathies, oncology, cardiovascular disease, autoimmune conditions, and regenerative medicine. Its first and only commercialized product, Casgevy, is co-developed and co-commercialized with Vertex Pharmaceuticals under a 40/60 profit-sharing structure in which CRISPR retains 40 percent of profits. Revenue has historically been driven by collaboration milestone payments from Vertex rather than product sales, making the financial profile highly lumpy. Beyond Casgevy, the company generates no meaningful product revenue today and funds operations through its cash reserves.

Full CRSP guide

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

• AGIO drivers: Mitapivat franchise expansion; Sickle cell Priority Review.
• CRSP drivers: First-Mover Advantage in Commercial Gene Editing; Casgevy's Long-Term Revenue Potential.

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: Agios remains deeply unprofitable, reporting quarterly GAAP losses well above a dollar per share while product revenue is still modest. For CRSP, the commercial ramp of Casgevy has been far slower than early projections, with the therapy generating only approximately $3.5 million in revenue in all of 2025, down sharply from prior years that were boosted by one-time milestone payments.

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 AGIO if you believe its drivers more; CRSP 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 AGIO and CRSP guides.

AGIO. Agios trades at a large multiple of its small product revenue, reflecting a valuation driven by pipeline potential rather than current earnings. The company is unprofitable, with R&D (~$81M) and SG&A (~$48M) in Q1 2026 far exceeding revenue. The roughly $1 billion cash balance represents a large share of the market capitalization, which cushions financing risk but also signals that the market is paying primarily for future indications like sickle cell disease.

CRSP. Because CRISPR Therapeutics has no meaningful product profits yet, traditional earnings-based valuation multiples like P/E are negative and not analytically useful. The company is better evaluated on its cash runway, the pace of Casgevy's commercial adoption, and the risk-adjusted value of its pipeline. Enterprise value of roughly $2.8 billion (market cap less net cash) reflects the market pricing in significant execution uncertainty around both the Casgevy ramp and the broader pipeline, while a wide spread exists between bearish analyst targets near $33 and optimistic targets above $80.

Headline figures (approximate, JUNE 2026): AGIO shows revenue (ttm) ~$66M, fy2025 revenue ~$54M, q1 2026 revenue ~$20.7M (up ~138% YoY), q1 2026 gaap eps ~-$1.69; CRSP shows revenue (full year 2025, product only) ~$3.5 million, revenue (full year 2024) ~$37.3 million (primarily collaboration revenue), net loss (ttm through q3 2025) ~$488 million, operating loss (full year 2025) ~$665 million.

AGIO and CRSP 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 AGIO and CRSP exposure against your real portfolio. It is not an investment adviser.