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Biodesix (BDSX) Stock Price, News & Analysis

BDSX NASDAQ
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Why is BDSX Stock Up Today?

9.95% after hours
77 alerts
23.5x vol
15m delay

Shares are trading on Biodesix, Inc. (BDSX)’s third-quarter results, which showed revenue growth and narrower losses, while management said growth was below expectations. The company also provided 2026 revenue guidance of $101 million to $103 million. A separate filing says Chief Commercial Officer Kieran O’Kane’s employment ended effective November 2.

AI-generated explanation by Rhea-AI, written on at . How Rhea-AI works. Not financial advice.

Price Move History

Daily moves over 5%
80 252 sessions, November 6, 2025 to November 6, 2026
Largest daily move
-57% close of November 6, 2026
1-year change
+9.5% closing prices, November 6, 2025 to November 6, 2026
1-month change
-69.5% closing prices, October 6, 2026 to November 6, 2026

Company Description

Biodesix, Inc. (BDSX) is a diagnostic solutions company that focuses on improving clinical care and outcomes for patients with lung disease and other cancers. The company’s primary activities center on diagnostic testing services and development services that support healthcare professionals and biopharmaceutical partners. Biodesix common stock trades on The Nasdaq Stock Market under the symbol BDSX.

According to company disclosures, Biodesix operates a single overall business focused on diagnostic testing, with revenue derived from diagnostic tests and from services provided to biopharmaceutical and life sciences organizations. The company emphasizes blood-based testing and molecular diagnostic approaches, and it reports that its diagnostic offerings and services are intended to support more personalized care decisions, particularly in lung disease and oncology.

Core diagnostic testing business

Biodesix states that its Biodesix Diagnostic Tests are marketed under the brands Nodify Lung® Nodule Risk Assessment and IQLung® Cancer Treatment Guidance. These tests are described as tools that support clinical decisions to expedite personalized care and improve outcomes for patients with lung disease. Company communications highlight the use of these tests in lung nodule risk assessment and in guiding treatment decisions for lung cancer.

In its public updates, Biodesix reports that Lung Diagnostics revenue is a major component of its business. The company attributes growth in this area to increases in test volumes, improvements in average revenue per test, and reimbursement dynamics. It also notes activities to expand adoption of its lung diagnostic tests, including use in pulmonology and primary care settings, as well as evidence-generation efforts such as real-world studies and clinical and health economic research related to its Nodify Lung tests.

Development services for biopharmaceutical and research partners

Beyond clinical testing, Biodesix provides Development Services to biopharmaceutical companies, life sciences organizations, and research institutions. The company describes these services as enabling partners with scientific, technological, and operational capabilities that support the development of diagnostic tests, tools, and therapeutics. Public announcements reference development services related to clinical trial testing, diagnostic research, and the discovery, development, and commercialization of companion diagnostics.

Biodesix also reports collaborations around Droplet Digital PCR (ddPCR™) technology. For example, the company has disclosed an expanded partnership under which it will conduct development, clinical validation, and regulatory submissions of in vitro diagnostic assays for oncology applications using Bio-Rad’s Droplet Digital PCR technology. Under this type of arrangement, Biodesix has indicated that, following regulatory clearance, it expects to manufacture and distribute specimen collection kits for the developed assays and to offer certain assays as test services through its accredited laboratory for biopharma and clinical customers.

Focus on lung disease and oncology

Biodesix describes itself as being driven to improve care for patients with lung disease, and it highlights lung cancer and lung nodule management as central application areas for its tests. Company materials reference on-market Nodify Lung tests, including Nodify CDT® and Nodify XL2®, and describe real-world and clinical studies designed to characterize their performance and clinical utility in diverse patient populations.

In addition to lung disease, Biodesix has announced development work in breast cancer, including an ultra-sensitive ESR1 assay for monitoring treatment resistance in hormone receptor-positive, HER2-negative advanced breast cancers. The company has indicated that this assay is available to biopharmaceutical customers as part of its Development Services offering and that it is working with partners to clinically validate and potentially seek reimbursement for such assays.

Research, evidence generation, and scientific engagement

Biodesix regularly reports participation in scientific and medical conferences, including meetings focused on lung cancer, breast cancer, pharmacoeconomics, and molecular pathology. The company highlights poster presentations and workshops that address topics such as:

  • Clinical utility data for Nodify Lung tests and their role in early lung cancer diagnosis.
  • Health economic analyses of pulmonary nodule-related workup costs and resource utilization.
  • Development of ultra-sensitive assays for monitoring cancer-related mutations in liquid biopsies.
  • Molecular diagnostic approaches that incorporate technologies such as next-generation sequencing (NGS), droplet digital PCR, and mass spectrometry.

These activities are presented by the company as part of its efforts to expand the evidence base for its diagnostic tests and to collaborate with academic and industry partners on new diagnostic applications.

Financial reporting and business scale indicators

Biodesix provides regular financial updates through press releases and SEC filings. In its communications regarding 2025 results, the company reports revenue contributions from Lung Diagnostics and Development Services and discusses metrics such as test volumes, gross margins, and cash and cash equivalents. It also discloses use of non-GAAP measures such as Adjusted EBITDA as internal performance indicators, explaining that these measures are used by management to evaluate operating performance and to compare results across periods.

The company has also disclosed corporate actions related to its capital structure and stock listing, including a one-for-twenty reverse stock split of its common stock and subsequent confirmation from Nasdaq that it regained compliance with the minimum bid price requirement for continued listing on The Nasdaq Global Market. These events are documented in Biodesix’s press releases and Form 8-K filings.

Regulatory and public company status

Biodesix, Inc. is incorporated in Delaware and files reports with the U.S. Securities and Exchange Commission. The company’s common stock, with a par value of $0.001 per share, is listed on The Nasdaq Stock Market under the trading symbol BDSX. SEC filings describe Biodesix as a public company subject to ongoing reporting obligations, and recent Form 8-K filings reference its principal executive offices in Louisville, Colorado.

As a diagnostics-focused business operating in the health care sector, Biodesix’s public communications emphasize its role in providing diagnostic tests and development services that support clinical decision-making, research, and therapeutic development, particularly in lung disease and oncology.

Stock Performance

$9.38
+9.95%
+0.85
After hoursChange vs the $8.53 closeLast updated: November 6, 2026 at 17:29
+9.5%
Performance 1 year
$99.0M

Biodesix (BDSX) closed at $8.53 on November 6, 2026. Over the past 12 months, the price has gained 9.5%.

See what a $1,000 investment in BDSX would be worth today

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BDSX Metrics & Rankings

Price returns through November 6, 2026. Month and year figures include the first trading day. Ranking links may use different dates.

Insider Radar

Net Buyers
90-Day Summary
42,600
Shares Bought
0
Shares Sold
3
Transactions
Most Recent Transaction
SCHULER JACK W (10% Owner) bought 15,000 shares held indirectly @ $24.47 on August 12, 2026

Insider buying activity at Biodesix over the past 90 days may reflect management confidence in the company's direction. Institutional investors and analysts often monitor insider purchases as a potential bullish indicator for the stock.

Based on SEC Form 4 filings over the last 90 days.

Financial Highlights

Biodesix generated $88.5M in revenue in FY2025, operating income reached -$27.9M (-31.5% operating margin), and net income was -$35.3M, reflecting a -39.9% net profit margin. Diluted earnings per share stood at -$4.67. The company generated -$23.3M in operating cash flow. The current ratio was 1.86, measuring current assets divided by current liabilities.

$88.5M
Revenue (FY2025)
-$35.3M
Net Income (FY2025)
-$23.3M
Operating Cash Flow

Upcoming Events

NOV
05
November 5, 2026 Earnings

Q3 2026 Earnings Call

Management will host a conference call and webcast at 4:30 p.m. Eastern on Nov 5, 2026 to discuss Q3 2026 results and business update.
NOV
10
November 10, 2026 Marketing

UBS fireside chat

Fireside chat at UBS Global Healthcare Conference on Nov 10 at 2:45 PM ET; webcast and replay at Biodesix.com Investors News & Events.
NOV
17
November 17, 2026 Marketing

Craig-Hallum meetings

One-on-one investor meetings at Craig-Hallum Alpha Select Conference in New York on Nov 17; presentation webcast and replay at Biodesix.com.
DEC
03
December 3, 2026 Clinical

RSNA data presentation

Initial performance data presented at RSNA on Dec 3, 2026, covering radiomics and blood biomarker integration.
YEAR
2028
2028 Product

Digital Diagnostics availability

Biodesix anticipates commercial availability of its first Digital Diagnostics test during 2028; no specific launch date provided.
YEAR
2028
2028 Product

Commercial availability

Anticipated commercial availability in 2028 through Biodesix's established commercial channels for the lung nodule test.
NOV
2028
November 2028 Financial

Term loan maturity

Amended term loan matures November 2028; relevant for debt/ liquidity planning.

Biodesix has 7 upcoming scheduled events. 1 of them is an earnings release or call. 1 of them is a financing or capital event, such as a dividend or a debt maturity. Investors can track these dates to stay informed about potential catalysts that may affect the BDSX stock price.

Short Interest History

Last 12 Months

Short interest in Biodesix (BDSX) currently stands at 209.5 thousand shares, up 3.8% from the previous reporting period, representing 3.7% of the float. Since November 2025, short interest has increased by 56.9%.

Days to Cover History

Last 12 Months

Days to cover for Biodesix (BDSX) currently stands at 2.4 days, up 27.7% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since November 2025, the figure has increased by 104.3%. Across the settlements charted above, it has ranged from 1.0 to 3.3 days.

BDSX Company Profile & Sector Positioning

Biodesix (BDSX) operates in the Diagnostics & Research industry within the broader Healthcare sector and is listed on the NASDAQ.

Investors comparing BDSX often look at related companies in the same sector, including Exagen Inc. (XGN), Burning Rock Biotech Limited (BNR), Insight Molecular Diagnostics Inc. (IMDX), Quantum Cyber N.V. (QUCY), and Myriad Genetics Inc (MYGN). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate BDSX's relative position within its industry.

Frequently Asked Questions

The current stock price of Biodesix (BDSX) is $9.38 in after-hours trading as of November 6, 2026.

The market cap of Biodesix (BDSX) is approximately $99.0M. Learn more about what market capitalization means .

The FY2025 revenue of Biodesix (BDSX) is $88.5M, from its most recent completed fiscal year.

The FY2025 net income of Biodesix (BDSX) is -$35.3M, from its most recent completed fiscal year.

The diluted earnings per share (EPS) of Biodesix (BDSX) is -$4.67 for FY2025, its most recent completed fiscal year. Learn more about EPS .

The operating cash flow of Biodesix (BDSX) is -$23.3M for FY2025, its most recent completed fiscal year. Learn about cash flow.

The net profit margin of Biodesix (BDSX) is -39.9% for FY2025, its most recent completed fiscal year. Learn about profit margins.

The operating profit margin of Biodesix (BDSX) is -31.5% for FY2025, its most recent completed fiscal year. Learn about operating margins.

The current ratio of Biodesix (BDSX), current assets divided by current liabilities, was 1.86 at the end of FY2025, its most recent completed fiscal year. Learn about liquidity ratios.

The operating income of Biodesix (BDSX) is -$27.9M for FY2025, its most recent completed fiscal year. Learn about operating income.