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Guardant Health (GH) Q1 FY26 earnings call: guidance and Q&A

Earnings call· Mar 2026 (Q1 FY26)· Health Care· May 7, 2026

Source: earnings call transcript

Executive summary

Guardant Health Q1 FY26 — Strong Revenue Growth and Shield Momentum

Guardant Health delivered a strong Q1 FY26, driven by accelerated growth across its Oncology, Biopharma & Data, and Screening segments, surpassing $1 billion in trailing 12-month revenue. The company raised its full-year revenue guidance, reflecting significant momentum in Shield testing and continued strength in oncology, while strategically reinvesting in commercial expansion and product development.

Highlights

5
  • Total revenue of $302 million, up 48% year-over-year, marking the fastest growth in the last 5 years.

  • Oncology revenue accelerated to $205 million, growing 36% year-over-year, with test volumes rising 47%.

  • Shield testing revenue reached $42 million, a significant increase from $6 million in Q1 FY25, driven by 44,000 tests.

  • Non-GAAP gross margin improved to 66% in Q1 FY26, up from 65% in the prior year period.

  • Full-year 2026 revenue guidance was raised to a range of $1.30 billion to $1.32 billion, representing 32% to 34% growth.

Concerns

3
  • Adjusted EBITDA loss remained at $59 million in Q1 FY26, consistent with the prior year period.

  • Free cash flow burn increased to $71 million in Q1 FY26, up from $67 million in the prior year period.

  • Sales and marketing expense rose significantly to $154 million in Q1 FY26, a 64% increase year-over-year.

Guidance & targets

CategoryTargetConfidence
Full-year 2026 Revenue
$1.30B-$1.32B
high materiality
High
Full-year 2026 Oncology Revenue Growth
28%-29%
medium materiality
High
Full-year 2026 Biopharma & Data Revenue Growth
low double-digit range
medium materiality
High
Full-year 2026 Screening Revenue
$186M-$198M
high materiality
High
Full-year 2026 Non-GAAP Gross Margin
64%-65%
medium materiality
High
Full-year 2026 Non-GAAP Operating Expenses
$1.05B-$1.07B
medium materiality
High
Full-year 2026 Free Cash Flow Burn
$185M-$195M
high materiality
High
Company-wide Cash Flow Breakeven
achieve by end of 2027
high materiality
High

Segment performance

SegmentRevenueYoYQoQMargin
Oncology
Oncology test volumes rose from 59,000 in the prior year period. Strength across all products, with Guardant360 Liquid benefiting from Smart App adoption and Reveal from MRD and therapy response monitoring.
86,000 tests47% volume growthGuardant360 Liquid volumes: 30% growthGuardant360 Tissue: second fastest-growing productReveal: >100% volume growth
$205M36%——
Biopharma & Data
Reflecting sustained demand and continued strength across sample testing, companion diagnostic projects, and data products.
$53M17%——
Screening
Increase primarily driven by higher Shield test volumes. Volume tracked in line with expectations through January and February, with momentum building through March following Quest partnership launch and successful marketing programs.
44,000 testsQ1 FY25 revenue: $6MQ1 FY25 tests: 9,000
$42M———

GH operating KPIs by quarter

GH operating KPIs stated on its earnings calls, by fiscal quarter
KPIThis call Mar 2026 Q1 FY26 Jun 2026 Q2 FY26Change vs prior quarter
Oncology test volumes
~86K Oncology test volumes rose 47% to approximately 86,000 tests, up from 59,000 in the prior year period. Source: earnings call transcript
~104K Oncology test volumes rose 63% to approximately 104,000 tests, up from 64,000 in the prior year period with strength across all products. Source: earnings call transcript
—
Shield tests Screening
~44K We delivered $42 million of Shield testing revenue driven by approximately 44,000 tests compared to $6 million revenue and approximately 9,000 tests in Q1 of 2025. Source: earnings call transcript
~66K We delivered $53 million of Shield testing revenue, driven by approximately 66,000 tests compared to $15 million of revenue and approximately 16,000 tests in Q2 of 2025. Source: earnings call transcript
—

Operating figures the company stated on at least two of the calls shown, checked against each call's transcript. Click a figure to read the sentence. A dash means it was not stated that quarter.

Product announcements

ProductTypeDetails
Shield blood collectionupdate
Guardant360 Tissue RNA testingexpansion
Shield Multi-Cancer Detection (MCD) reportlaunch

Deals & partnerships

Merck Develop companion diagnostics and commercialize novel therapies multiyear

Multiyear agreement with Merck to develop companion diagnostics and commercialize novel therapies.

Nuvalent Develop companion diagnostics with an initial focus on Guardant360 Tissue

Collaboration with Nuvalent to develop companion diagnostics with an initial focus on Guardant360 Tissue.

Quest Diagnostics Nationwide collaboration for Shield colorectal cancer screening

Quest collaboration launched nationwide in late Q1, opening doors for Guardant in health systems and physician practices and fast-tracking EMR connectivity to more than 650,000 HCPs.

Manulife Expansion of Shield multi-cancer detection in Asia

Expansion of Shield multi-cancer detection in Asia through a partnership with Manulife, serving over 13 million customers. Initially launched in Hong Kong, the Philippines, and Singapore.

Risks & headwinds

Camizestrant FDA approval uncertainty coming months

Oncologic Drugs Advisory Committee voted [ 6 to 3 ] against the claim that camizestrant demonstrated clinically meaningful benefit in HR-positive HER2-negative metastatic breast cancer.

Mitigation:FDA retains full discretion over its final decision; broader consensus that ctDNA companion diagnostic therapy monitoring represents the future of precision oncology care.

What to watch in Q2 FY26

Shield Volume Trajectory

next quarter
Current 44,000 tests in Q1 FY26, strong momentum in March
Target continued sequential growth of ~10,000 tests per quarter

Why it matters

Sustained Shield volume growth is critical for achieving full-year guidance and demonstrating market adoption of the screening product.

our guide for this year now for Shield, when you do the calculation, it kind of implies an average of about maybe a little bit over 10,000 sequential growth like Q-over-Q.

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Q&A highlights

What is the confidence level for April Shield volumes, and how much of the raised guidance is attributable to the Quest collaboration versus other drivers?

Management expressed high confidence in the new guidance, noting strong momentum in March driven by DTC campaigns, influencer campaigns, and the Quest launch. Early indications from Quest are positive and factored into the guide, but the company will continue to monitor its incremental contribution.

“Based on the trends that we've seen in March, and it's -- we don't want to get into Q2 commentary, but based on everything that we've seen, gives us a lot of good confidence of what we can deliver in this year.”

asked by Mark Massaro · answered by AmirAli Talasaz

2 min read 6 chapters

Detailed narrative

Q1 FY26 Performance Highlights

Guardant Health reported a robust Q1 FY26, with total revenue reaching $302 million, marking a 48% year-over-year increase and the fastest growth in five years. This performance was broad-based across Oncology, Biopharma & Data, and Screening segments, pushing the company past the $1 billion trailing 12-month revenue milestone. The strong results validate the strategic vision of delivering actionable insights across the care continuum.

Oncology Segment Strength

The oncology business saw accelerated growth of 36% year-over-year, generating $205 million in revenue. Oncology test volumes surged 47% to approximately 86,000 tests, up from 59,000 in the prior year period. This growth was driven by Guardant360 Liquid (30% volume growth) and Reveal (over 100% volume growth), reflecting expanding clinical utility, smart platform innovation, and strong adoption across the cancer care continuum.

Shield Screening Momentum

Shield testing revenue reached $42 million from approximately 44,000 tests in Q1 FY26, a significant increase from $6 million and 9,000 tests in Q1 FY25. This growth was fueled by improved sales rep productivity, successful direct-to-consumer (DTC) and influencer campaigns (generating over 1 billion impressions), and the nationwide launch of the Quest collaboration, which contributed to strong momentum exiting March.

Operational Efficiency and Financial Outlook

Non-GAAP gross margin improved to 66% in Q1 FY26, primarily due to lower Guardant360 Liquid cost per test (reduced by nearly $200 YoY) and improved screening gross margins. The company raised its full-year 2026 revenue guidance to $1.30 billion to $1.32 billion and reiterated its commitment to achieving company-wide cash flow breakeven by the end of 2027, while strategically reinvesting in commercial expansion.

Strategic Product Developments

Guardant Health continues to advance its product pipeline, with Guardant360 Liquid's FDA review on track to become the most comprehensive FDA-approved liquid biopsy for therapy selection. Guardant360 Tissue received a second major platform upgrade, expanding RNA testing to whole transcriptome. Reveal is expanding its utility with new therapy response monitoring and MolDx submissions for breast cancer surveillance and immuno-oncology monitoring.

Multi-Cancer Detection and Patient Experience

The company received FDA approval to reduce Shield blood collection to two tubes from four, enhancing patient experience. Shield Multi-Cancer Detection (MCD) was launched in Asia via a partnership with Manulife and is being offered to US Shield CRC patients who opt-in, establishing a scalable platform for clinical data generation. The MCD report covers findings across 9 additional cancer types.

Summary of the company's earnings call; see how call summaries are prepared. Not investment advice.