Opko Health, Inc. (OPK) Stock Price & How to Invest

Last updated July 2026

Short answer

You can invest in OPKO Health (OPK) by buying shares or fractional shares at any major US broker, through a small-cap healthcare or biotech ETF that holds it, or as one position in a thematic basket. OPKO Health is a diversified healthcare company that combines a diagnostics business (BioReference Laboratories, including the 4Kscore prostate test), a pharmaceutical business (products like Rayaldee and its profit share on Pfizer's NGENLA growth-hormone drug), and a clinical-stage biotech engine called ModeX Therapeutics developing multispecific antibodies and vaccines. The core thesis is a turnaround-plus-pipeline bet: the legacy diagnostics and pharma segments fund operations while ModeX, backed by partnerships with Merck and Regeneron, provides the higher-risk, higher-reward upside.

OPK stock price

As of 2026-07-14, Opko Health, Inc. (OPK) last closed at $1.23, down 8.5% over the past year. Over the past 52 weeks it has traded between $1.10 and $1.58.

OPK last close
$1.23
1 day
-0.37%
1 month
-13.70%
1 year
-8.54%
52-week range
$1.10 to $1.58
Last close
2026-07-14

Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Opko Health, Inc.'s investor relations page. Walnut is informational, not investment advice.

What does Opko Health, Inc. (OPK) do?

OPKO Health, Inc. is a diversified healthcare company that operates across three areas. Its diagnostics business is anchored by BioReference Laboratories, a clinical lab whose revenue has been shrinking after the company sold certain assets (including oncology testing assets to Labcorp) and narrowed its geographic footprint to cut losses; its 4Kscore prostate-cancer test is a growth focus. Its pharmaceutical segment sells products such as Rayaldee (for secondary hyperparathyroidism) and earns a profit share on NGENLA, a long-acting growth-hormone product commercialized globally by Pfizer. Its third and most speculative piece is ModeX Therapeutics, a clinical-stage biotech developing multispecific antibodies and vaccines, including MDX2001, a tetraspecific T-cell engager for solid tumors that has advanced through early-stage dosing.

The investment picture in 2026 is a classic small-cap turnaround-plus-optionality story. Consolidated revenue has been declining, largely because of the BioReference asset sales and lower test volumes, and the company has continued to post net losses while working to reduce its operating loss through cost cuts and a more focused lab footprint. Management guided to a total-revenue range for 2026 alongside substantial continued R&D investment, signaling that it is spending to advance the ModeX pipeline. The bigger long-term value driver is ModeX's partnerships: collaborations with Merck (including a vaccine program) and Regeneron carry the potential for large milestone payments (Regeneron's deal was framed as potentially exceeding $200 million per program and over $1 billion in total if multiple products succeed). Because those milestones are contingent on clinical and commercial success, OPKO is best understood as a speculative, catalyst-driven stock rather than a steady earner.

What's driving Opko Health, Inc. (OPK)?

1. ModeX pipeline and partnerships

ModeX Therapeutics is the main source of long-term upside. It is advancing multispecific antibodies and vaccines, including MDX2001 (a tetraspecific T-cell engager for solid tumors) in early clinical testing, and has partnerships with Merck and Regeneron. The Regeneron collaboration was framed as potentially worth over $200 million per program and more than $1 billion in total if multiple products succeed, though those payments are contingent on hitting milestones.

2. Pharmaceutical royalties and products

The pharma segment provides more stable cash flow than the pipeline. OPKO earns a growing profit share on NGENLA, a long-acting growth-hormone product Pfizer commercializes globally, and sells products like Rayaldee, including through international expansion. Growth in these royalty and product streams helps fund operations while the ModeX pipeline matures.

3. BioReference restructuring

The diagnostics arm has been shrinking on purpose. After selling assets (including oncology testing to Labcorp) and narrowing its footprint, revenue is lower but the operating loss has been improving. The bet is that a smaller, more focused BioReference, plus growth tests like the 4Kscore prostate assay, can move toward breakeven. Execution on this turnaround is a key swing factor.

4. Balance sheet and funding runway

OPKO holds a meaningful cash position alongside debt, giving it some runway to fund R&D, but continued net losses mean funding discipline matters. Non-dilutive milestone payments from partners, asset sales, and pharma royalties reduce reliance on issuing new shares. Watching how the company balances pipeline spending against cash burn is central to the investment case.

What are the risks to Opko Health, Inc. (OPK)?

The dominant risk is that OPKO has been unprofitable at the consolidated level, with declining revenue as BioReference shrinks, so the base business is not yet self-sustaining. The pipeline upside is highly speculative: ModeX's programs are early-stage, and clinical trials frequently fail, meaning the large partnership milestones may never be earned. Because it is a small-cap with ongoing losses, OPKO may need to raise capital, which could dilute existing shareholders, and the stock is volatile and sensitive to trial news and sentiment. The company's multi-segment structure (diagnostics, pharma, biotech) makes it harder to value and can obscure how each piece is really performing. Diagnostics faces reimbursement pressure and competition from much larger labs, while pharma revenue depends on a partner (Pfizer) for a key royalty. Litigation and regulatory history around the company and its founder have been a recurring overhang.

How is Opko Health, Inc. (OPK) valued? (approximate, Jul 2026)

A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Opko Health, Inc.'s investor relations page or your broker.

  • Revenue trend: Declining, largely due to BioReference asset sales and lower test volumes; management guided 2026 total revenue to a range (roughly the low-to-mid-$500 millions). Figures are approximate, verify live.
  • Profitability: Unprofitable at the consolidated level, posting net losses, though the operating loss has been narrowing on cost cuts and a more focused lab footprint.
  • Balance sheet: Holds a meaningful cash position alongside debt (roughly balanced net cash/net debt in recent reporting). Confirm current cash and debt on the latest filing.
  • Market cap tier: Small-cap. Approximate market value has been under roughly $1 billion. Verify the live number.
  • Valuation note: Hard to value on earnings because the company loses money; the market prices it largely on pipeline optionality (ModeX) plus the diagnostics/pharma base. Multiples like P/E are not meaningful while losses persist.
  • Analyst coverage: Followed by a modest number of analysts, with views split between pipeline optimists and turnaround skeptics. Check current ratings and targets live.

All figures here are approximate and tied to the asOf date; verify live numbers on a current quote page or the latest SEC filing before acting. Because OPKO is unprofitable, standard earnings multiples are not meaningful, and much of the stock's value rests on speculative, milestone-contingent pipeline outcomes at ModeX. Treat any partnership-value figures (such as the over-$1-billion Regeneron framing) as potential future milestones that require clinical and commercial success, not current revenue.

Who competes with Opko Health, Inc. (OPK)?

Diagnostics and clinical labs

BioReference competes with much larger clinical-laboratory operators such as Labcorp (which bought certain OPKO oncology testing assets) and Quest Diagnostics, plus specialized molecular-diagnostics firms. These rivals have far greater scale, payer relationships, and testing volume, which is a core reason OPKO narrowed BioReference's footprint to focus on where it can compete, like the 4Kscore prostate test.

Multispecific-antibody and immuno-oncology biotech

Through ModeX, OPKO competes in the crowded field of multispecific antibodies, T-cell engagers, and cancer immunotherapy, against both large players (Regeneron, Amgen, Roche/Genentech, Merck) and many clinical-stage biotechs. It partners with some of these same companies (Merck, Regeneron), so they are both collaborators and competitors depending on the program.

Specialty and endocrine pharmaceuticals

OPKO's pharma products compete in niche endocrine and renal markets. Rayaldee competes with other treatments for secondary hyperparathyroidism, and its NGENLA growth-hormone economics depend on Pfizer competing against other long-acting and daily growth-hormone products from firms like Novo Nordisk and Ascendis Pharma. These are specialized markets where clinical differentiation and payer coverage matter.

How to invest in Opko Health, Inc. (OPK)

There are three common ways to get OPK exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic basket, so OPK sits alongside other stocks that express the same thesis.

Walnut takes the basket route. Describe a thesis where OPK fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.

The bottom line on Opko Health, Inc. (OPK)

OPKO Health is a small-cap, multi-part healthcare company: a restructuring diagnostics arm, a modest pharma franchise, and a clinical-stage antibody platform (ModeX) with Merck and Regeneron partnerships. The upside is pipeline-driven and speculative; the base business has been loss-making, so it suits higher-risk, patient investors.

Build a basket around OPK with Walnut

Use Opko Health, Inc. as one constituent in a thematic basket Walnut's AI helps you assemble. Describe a thesis you believe in, the AI proposes the holdings and weights, and you approve before any broker order.

FAQ

Is OPK a good stock to buy right now?

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That depends on your goals, time horizon, and risk tolerance, and this is not investment advice. The bull case is that ModeX's antibody pipeline, backed by Merck and Regeneron partnerships worth potentially over $1 billion in milestones, offers large upside, while diagnostics and pharma fund operations. The bear case is that the company loses money, revenue is shrinking, the pipeline is early-stage and could fail, and it may need to raise capital and dilute shareholders. OPK is speculative and volatile, so weigh it carefully against your portfolio.

What does OPKO Health actually do?

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OPKO Health is a diversified healthcare company with three parts: a diagnostics business (BioReference Laboratories, including the 4Kscore prostate test), a pharmaceutical business (products like Rayaldee plus a profit share on Pfizer's NGENLA growth-hormone drug), and a clinical-stage biotech, ModeX Therapeutics, developing multispecific antibodies and vaccines. The diagnostics and pharma pieces generate revenue today while ModeX provides the speculative upside.

What is ModeX Therapeutics?

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ModeX is OPKO's clinical-stage biotech division developing multispecific antibodies and vaccines using its MSTAR technology. Its lead oncology candidate, MDX2001, is a tetraspecific T-cell engager for solid tumors that has advanced through early dosing, with additional immuno-oncology candidates behind it. ModeX has research collaborations with Merck and Regeneron that carry large potential milestone payments if the programs succeed, making it the main long-term value driver for OPK.

Why is OPKO's revenue declining?

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The main reason is its diagnostics segment. OPKO sold certain BioReference assets (including oncology testing to Labcorp) and narrowed the lab's geographic footprint to cut losses, which lowered revenue but improved the operating loss. Lower test volumes also contributed. Management has been deliberately trading top-line revenue for a smaller, more focused, and less loss-making diagnostics business.

Is OPKO Health profitable?

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No. OPKO has been posting net losses at the consolidated level, though it has been working to narrow its operating loss through cost cuts and a more focused BioReference footprint. Because it is unprofitable and investing heavily in R&D for the ModeX pipeline, standard valuation multiples like P/E are not meaningful, and the stock is priced largely on future pipeline potential. Always check the latest financials.

What is NGENLA and why does it matter to OPKO?

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NGENLA (somatrogon) is a long-acting growth-hormone product that Pfizer commercializes globally, and OPKO earns a profit share on its sales. As NGENLA rolls out in more markets, OPKO's royalty and profit-share income grows, providing a relatively stable revenue stream that helps fund the company's operations and pipeline. However, this income depends on Pfizer's commercial success and competition in the growth-hormone market.

Does OPKO Health pay a dividend?

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OPKO Health does not pay a regular dividend and is not an income stock. As a small-cap company that is still unprofitable and investing in its pipeline, it retains cash to fund operations and R&D. Any return to shareholders would more likely come through share-price appreciation if the pipeline and turnaround succeed, not through dividends. Confirm the current policy before assuming any payout.

How can I get exposure to OPK through an ETF?

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OPK can appear in small-cap, broad healthcare, and biotech ETFs, though as a smaller company its weighting in any diversified fund is typically tiny. ETF exposure spreads single-stock risk but means an OPKO move barely affects your return. Always check a fund's holdings and weightings before assuming meaningful exposure to OPK specifically.

What are the main risks of investing in OPK?

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The biggest risks are ongoing losses and declining revenue, meaning the base business is not self-sustaining, and heavy reliance on a speculative, early-stage pipeline that could fail in clinical trials. As a small-cap with losses, OPKO may raise capital and dilute shareholders, and the stock is volatile and news-driven. Its multi-segment structure is hard to value, diagnostics faces reimbursement and competitive pressure, and litigation and regulatory history have been a recurring overhang.

Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Opko Health, Inc.'s investor relations page or your broker before making investment decisions.