Grail Stock: Buy the Pullback After NHS Trial Setback?

Grail's stock soared to a record high of $116 in January, marking a massive 732% gain from its spin-off price in mid-2024. This incredible rally was fueled by immense optimism for its Galleri blood test, a multi-cancer early detection technology.

However, the stock has since plummeted, now trading around $68. The primary catalyst for this sharp decline was news in February that its large NHS England trial for Galleri failed to meet its main goal.

The trial, involving about 142,000 people, aimed to show that Galleri users had fewer late-stage (Stage III and IV) cancers detected compared to non-users. While it did not achieve a statistically significant reduction in those late-stage cancers overall, the results weren't a complete failure.

The data showed Galleri users had fewer Stage IV cancers detected and enabled earlier (Stage I and II) detection of some of the deadliest cancers. Despite this setback, Grail continues to sell its test directly to consumers and through other channels without full FDA approval.

This trial failure is a significant near-term setback because it was seen as a crucial step toward full FDA approval. Regulatory approval is key to unlocking massive growth, as it would allow private insurers and Medicare to cover the test, dramatically expanding its patient reach.

The delay means it could take years longer for Galleri to achieve its full market potential. This directly impacts the stock's valuation, which had priced in a faster path to widespread adoption and profitability.

Despite the clinical hiccup, Grail's underlying business fundamentals remain strong. The company is still growing revenue rapidly, from $93 million in 2023 to $147 million in 2025, and it sold over 56,000 tests last quarter alone.

Furthermore, Grail is narrowing its net losses significantly and has integrated its orders into Epic's Aura healthcare network, which could streamline future adoption. The company has other trial data coming later this year, which could provide new catalysts.

For investors, the core question is whether the current stock price now adequately reflects the increased regulatory risk and timeline, or if it overcorrects, creating a buying opportunity for those with a long-term view.