Keith Speights, The Motley Fool
Mon, June 8, 2026 astatine 4:45 AM CDT 4 min read
Ask immoderate radical astir Grail (NASDAQ: GRAL), and a Monty Python movie volition astir apt travel to mind. The innovative pioneer of liquid biopsies (blood tests that tin observe cancer) continues to alert nether the radar surface for galore investors.
That's understandable to immoderate extent. After all, Grail is astir a small-cap stock, with a marketplace headdress hovering astir $2.6 billion. It's casual to disregard oregon overlook. But could Grail beryllium a sleeper banal everyone's astir to notice?
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A person successful a perchance tremendous marketplace
One occupation for Grail is that immoderate lump it into the aforesaid class arsenic different genomics stocks that absorption connected prenatal screening. This radical has go progressively crowded. However, Grail is antithetic -- and it has a monolithic opportunity.
Originally a portion of DNA sequencing elephantine Illumina (NASDAQ: ILMN), Grail is laser-focused connected aboriginal crab detection. The institution markets Galleri, a multi-cancer aboriginal detection (MCED) trial that screens for much than 50 crab types. Some of those cancers don't presently person screening options, specified arsenic ovarian, pancreatic, and liver/bile duct cancers.
So far, Galleri is the lone MCED trial clinically proven to summation aboriginal signifier crab detection and trim late-stage diagnoses. It has a debased false-positive complaint of 0.4% and a precocious crab awesome root (CSO) accuracy of implicit 90%.
The quality to observe aggregate types of crab adjacent earlier symptoms look could prevention lives -- and trim wide healthcare costs. Unsurprisingly, the marketplace for liquid biopsy tests could detonate implicit the adjacent fewer years. One estimation pegs the imaginable marketplace size astatine astir $50 billion.
Why Grail is poised to pull investors' attraction
Grail's shares person soared astir 340% implicit the past 5 years. However, it's been a highly volatile ride, and the banal inactive hasn't been a breakout prima for galore investors. That could alteration successful the not-too-distant future.
One crushed wherefore is Grail's results from 2 large objective studies presented astatine the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting past month. The NHS Galleri 2 proceedings is the archetypal randomized controlled survey of an MCED test. The Pathfinder 2 proceedings is the largest interventional MCED survey ever conducted successful North America.

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