Atomera Incorporated (ATOM) Stock Price & How to Invest
Last updated October 2026
Short answer
You can invest in Atomera Incorporated (ATOM) by buying shares or fractional shares at any major broker, through an ETF that holds it, or as one holding in a thematic basket. Atomera is a pre-revenue, micro-cap semiconductor IP company licensing Mears Silicon Technology (MST), an insertable thin-film material that improves transistor performance. With roughly $230,000 of trailing revenue, about $22 million of annual losses and a market cap near $123 million as of October 16, 2026, ATOM behaves as a speculative, option-value technology-adoption bet whose outcome hinges on customers like TSMC, Samsung, or Intel deploying MST in production.
ATOM stock price
As of 2026-10-23, Atomera Incorporated (ATOM) last closed at $2.94, down 6.7% over the past year. Over the past 52 weeks it has traded between $1.99 and $12.11.
Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Atomera Incorporated's investor relations page. Walnut is informational, not investment advice.
What does Atomera Incorporated (ATOM) do?
Atomera Incorporated is a small-cap semiconductor materials and intellectual property company. The company has developed Mears Silicon Technology (MST), a thin-film material that can be inserted into semiconductor manufacturing processes to improve transistor performance (lower leakage, higher drive current, better mobility). Atomera licenses MST technology to semiconductor manufacturers and integrated device manufacturers; the business model relies on customer adoption of MST in production semiconductor processes.
Atomera has been working through a multi-year customer engagement process with semiconductor manufacturers. Engagement typically progresses through R&D evaluation, integration in customer development environments, qualification, and eventually production deployment with associated royalty revenue. The company has not yet reached substantial production licensing revenue; the investment is primarily a technology adoption thesis rather than a current-earnings story. Headquartered in Los Gatos, California. Scott Bibaud has been CEO since 2015.
In the second quarter of 2026 Atomera reported revenue of about $158,000 and a net loss of about $6.3 million, or $0.12 per share, a cent better than the consensus estimate of $0.13. Management used the quarter's call to point to a gate-all-around (GAA) milestone, a new addressable market in NAND flash, and work on gallium nitride (GaN) devices, and in September the company said it would present results on 4F2 DRAM transistors and GaN devices at the SISPAD 2026 conference. None of that has yet turned into production royalties. Cash stood at about $38 million against roughly $1 million of debt at the end of June. The third-quarter report is scheduled for October 27, 2026, with consensus at a loss of $0.12 per share on about $100,000 of revenue.
What's driving Atomera Incorporated (ATOM)?
1. Customer engagement progression.
Atomera regularly reports on customer engagement progression through its Customer Activity Report. Engagement metrics (number of customers, stage of evaluation, integration in customer processes) are leading indicators of eventual production adoption. The pace of progression has been slower than initial expectations across multi-year periods. The second-quarter 2026 update added new application areas (a GAA milestone, NAND flash and GaN), which widens the list of places MST could land but does not by itself shorten the path to a production license.
2. MST integration value proposition.
MST provides transistor performance improvements that are increasingly difficult to achieve through traditional scaling. Customer integration efforts evaluate whether MST's value justifies the process changes and licensing costs. The value proposition is technical; commercial deployment requires both technical validation and commercial agreement.
3. Operating expense burn rate.
Atomera operates with minimal revenue (about $230,000 over the trailing twelve months) and a net loss of about $22 million. Operating cash outflow ran about $15 million over the same period. With roughly $38 million of cash and $1 million of debt at June 30, 2026, the company has runway measured in a couple of years at the current pace, and periodic equity raises remain part of the funding model. The cash position and burn rate determine runway.
4. Path to production licensing.
Reaching substantial production licensing revenue requires customers to deploy MST in production semiconductor processes. The transition from evaluation to production has been slower than expected; the eventual transition would meaningfully change Atomera's financial profile.
What are the risks to Atomera Incorporated (ATOM)?
Production adoption has been slower than expected across multi-year periods, and quarterly revenue in 2025-2026 has ranged from about $11,000 to $158,000. Cash burn (net loss of about $22 million over the trailing twelve months) requires ongoing capital raising or eventual production licensing revenue, so dilution is a standing risk. Customer concentration when (if) production adoption occurs. Small-cap volatility is meaningful: the share price fell about 46% in the three months to October 16, 2026 after an earlier run toward $12.
Is ATOM a buy or a sell?
We give no verdict on Atomera Incorporated. Both cases are real, which is why the question is contested at all, so here is the strongest version of each.
The case for buying. Customer engagement progression. Atomera regularly reports on customer engagement progression through its Customer Activity Report.
The case against. Production adoption has been slower than expected across multi-year periods, and quarterly revenue in 2025-2026 has ranged from about $11,000 to $158,000.
Read the full bull and bear case on ATOM, including what would have to change to break either one. Walnut is not an investment adviser.
Has Atomera Incorporated (ATOM) split its stock?
No. Atomera Incorporated (ATOM) has not split its stock in the last 10 years. That is a statement about the window we check rather than about the company’s entire history, so an older split is possible. It also matters less than it once did: fractional shares mean a high price per share no longer keeps smaller investors out, which removed most of the practical reason to split.
How is Atomera Incorporated (ATOM) valued? (approximate, October 2026)
A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Atomera Incorporated's investor relations page or your broker.
- Revenue (TTM): ~$230,000 (early-stage licensing and engineering)
- Net income (TTM): ~-$22.4 million
- EPS (TTM): -$0.65; 2026 consensus ~-$0.48
- P/E (forward): Not meaningful (operating losses)
- Price to sales: ~530x trailing revenue
- Market cap: ~$123 million
- Cash / debt: ~$38 million / ~$1 million (June 30, 2026)
- Dividend yield: None
At $3.15 a share and about $123 million of market value, Atomera is priced on the option value of MST rather than on any earnings stream; the price-to-sales multiple above 500x says the market is not valuing today's revenue at all. Roughly a third of the market cap is cash, so the remaining value is the market's estimate of the odds that a foundry or memory maker signs a production license. The October 27, 2026 third-quarter report is the next data point on customer progress and burn.
What themes does Atomera Incorporated (ATOM) fit?
These are the investment theses ATOM naturally fits into. Each links to a full theme guide listing every other stock that belongs and the ETFs commonly used as a passive proxy.
Who competes with Atomera Incorporated (ATOM)?
Semiconductor process IP licensing
Few direct competitors operate the same business model (insertable thin-film process IP licensing). Adjacent semiconductor IP licensors (Rambus, Tessera/Xperi/Adeia, various smaller IP licensors) operate different IP models. Process technology improvements typically come from internal R&D at TSMC, Intel, Samsung, or from process tool vendors.
Alternative transistor performance enhancement
Various alternative materials and process approaches (strained silicon, FinFET architecture, gate-all-around) developed internally by leading foundries provide transistor performance improvements without external licensing. MST competes for relevance against these established approaches.
What stocks are similar to Atomera Incorporated (ATOM)?
Other names that sit close to ATOM: same theme, named as a direct competitor, or held beside it in the same funds. Each entry says which. Worth a look if you are thinking about diversification within a thesis rather than concentration on one ticker.
How to invest in Atomera Incorporated (ATOM)
There are three common ways to get ATOM 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 portfolio, so ATOM sits alongside other stocks that express the same thesis.
Walnut takes the portfolio route. Describe a thesis where ATOM 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.
New to this? Start with how to invest in stocks, see how to analyze a stock with AI, or compare the best AI stock analyzers.
The bottom line on Atomera Incorporated (ATOM)
Atomera Incorporated (ATOM) is a binary, option-value micro-cap whose worth rests entirely on whether semiconductor manufacturers move MST from multi-year evaluation into production royalties. The stock closed at $3.15 on October 16, 2026, up about 34% for the year but down about 46% over three months and 34% over twelve, a range of roughly $1.89 to $12.37 in a single year. In a portfolio it behaves as a highly volatile, speculative satellite position with a cash-burn-driven funding need and risk of total loss, not an earnings-based holding, appropriate only in small size for high risk tolerance.
More on Atomera Incorporated (ATOM)
Whether ATOM is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, what would have to go right, and the risks in is ATOM a buy or a sell?, and where the stock could go from here in the ATOM stock forecast.
For income investors, whether ATOM pays a dividend and how the payout looks is covered in does ATOM pay a dividend? And to weigh ATOM against a peer, read the full side-by-side comparisons: ATOM vs NVDA and ATOM vs AMD.
Wondering how ATOM fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.
Investing in Atomera Incorporated with AI
Connect the broker you already use and ask Walnut's AI how ATOM fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is Atomera's ticker symbol?
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ATOM, listed on Nasdaq. Officially Atomera Incorporated. Headquartered in Los Gatos, California. Trades during US market hours, available at every major US brokerage. Small-capitalization company with substantial price volatility.
Who are Atomera's competitors?
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Few direct competitors operate the same business model (insertable thin-film process IP licensing). Adjacent semiconductor IP licensors (Rambus, Tessera/Xperi/Adeia) operate different IP models. Internal process R&D at TSMC, Intel, and Samsung represents the most meaningful alternative to external licensing. Alternative transistor enhancements (strained silicon, FinFET, gate-all-around) compete for relevance.
What is Mears Silicon Technology (MST), Atomera's (ATOM) core product?
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MST is a thin-film material developed by Atomera that can be inserted into semiconductor manufacturing processes to improve transistor performance: lower leakage, higher drive current, better mobility. Atomera licenses MST technology to semiconductor manufacturers; the business model relies on customer adoption of MST in production semiconductor processes.
What is Atomera's P/E ratio?
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Not meaningful. Atomera lost about $0.65 per share over the trailing twelve months and analysts expect a loss of about $0.48 per share for 2026, so both trailing and forward P/E ratios are undefined. The valuation is entirely option-value pricing on the eventual production deployment of MST in customer semiconductor processes. Traditional valuation metrics are not informative.
How did Atomera do in its latest quarter?
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In the second quarter of 2026 (reported August 4, 2026) Atomera had revenue of about $158,000, up from about $11,000 in the first quarter, and a net loss of about $6.3 million. The loss of $0.12 per share was a cent better than the $0.13 consensus. Management highlighted a gate-all-around milestone, a new NAND flash opportunity and GaN device work. The third-quarter report is due October 27, 2026, with consensus at a loss of $0.12 per share on about $100,000 of revenue.
How has ATOM stock performed in 2026?
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As of the October 16, 2026 close of $3.15, ATOM was up about 34% year to date but down about 34% over one year. The path has been sharp: the stock traded as high as about $12.37 in the past year and fell about 46% over the last three months and about 24% over the last month. Moves of that size on little change in revenue are typical for a pre-revenue IP licensor whose value turns on customer news.
What does Atomera do?
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Atomera has developed Mears Silicon Technology (MST), a thin-film material that can be inserted into semiconductor manufacturing processes to improve transistor performance. The company licenses MST to semiconductor manufacturers. The business model relies on customer adoption of MST in production processes; revenue is currently minimal and the investment is a technology adoption thesis rather than a current-earnings story.
Who owns the most Atomera stock?
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Major institutional holders include Vanguard and various small-cap and semiconductor IP-focused funds. Insider ownership is meaningful for a company of Atomera's size. The small market capitalization and substantial volatility make Atomera primarily appropriate for investors with high risk tolerance.
Which ETFs have the most Atomera exposure?
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Micro-cap ETFs (IWC iShares Micro-Cap) hold ATOM as part of broader universes. Semiconductor IP and specialty technology ETFs hold ATOM at higher concentrations but those funds have very low AUM. SOXX, SMH, VOO do not hold ATOM given the very small market cap. Direct ownership is essentially the only meaningful exposure path.
Which thematic baskets typically include Atomera?
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One theme on Walnut: Semiconductors (Mears Silicon Technology, an insertable process IP licensing model). ATOM is a speculative semiconductor IP play; it is typically a small satellite position rather than a core holding given the option-value nature and execution uncertainty.
Is Atomera in the S&P 500?
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No. ATOM's market cap (about $123 million as of October 16, 2026) is far below the S&P 500 threshold. It is included in micro-cap indices. Future S&P 500 inclusion would require enormous market cap appreciation; the path forward depends on MST adoption by major semiconductor manufacturers.
What is Atomera's market cap?
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Approximately $123 million as of October 16, 2026, at a share price of $3.15 (highly variable with technology adoption news and speculation; the 52-week range ran from about $1.89 to $12.37). About $38 million of that is cash on the balance sheet. ATOM is a micro-cap stock with substantial price volatility. Position sizing must reflect the small market cap and the binary outcome nature of MST production adoption.
Does Atomera pay a dividend?
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No. Atomera operates at significant operating losses and has no near-term path to dividend payments. Capital is prioritized for technology development, customer engagement programs, and operating runway extension. The investment thesis is entirely on technology adoption rather than current cash returns.
How would Atomera generate meaningful revenue?
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Atomera's revenue would scale meaningfully if semiconductor manufacturers (TSMC, Samsung, Intel, GlobalFoundries) adopt MST in production process flows. Each production deployment would generate royalty revenue on wafers produced using MST. The path from engagement to production adoption is multi-year; revenue scaling depends on commercial agreements following technical evaluation. Customer Activity Reports track engagement progression.
Is Atomera a binary investment?
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Substantially yes. The thesis depends on customer adoption of MST in production semiconductor processes. If adoption scales, revenue can grow dramatically given the high-margin licensing business model. If adoption fails or is delayed indefinitely, current earnings remain negative and the option value dissipates. The binary nature makes ATOM appropriate primarily for speculative satellite positions with risk tolerance for total loss.
Should I own Atomera directly or through a semi ETF?
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Direct ATOM is the only meaningful exposure path. Semiconductor ETFs do not hold ATOM at any meaningful weight given the micro-cap status. For investors interested in the speculative MST adoption thesis, direct ownership is necessary; position sizing should be small (typically 1-3% of portfolio at most) given the binary outcome nature.
Guides that feature ATOM
ATOM is one of the names covered in these guides. Each one puts the stock next to its peers so you can see where it fits rather than judging it alone.
Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Atomera Incorporated's investor relations page or your broker before making investment decisions.