If You Invested in Stem Inc (STEM)
Looking for the live price? See the STEM quote & overviewWhat $1,000 or $10,000 in STEM Would Be Worth Today
Real historical value by amount invested and how long ago| If you invested | 1 year ago | 5 years ago | 10 years ago | Since Jul 9, 2015 |
|---|---|---|---|---|
| $1,000 | $794 -21% | $11 -99% | $2,004 +100% | $1,564 +56% |
| $10,000 | $7,942 -21% | $110 -99% | $20,040 +100% | $15,643 +56% |
Based on real historical closing prices through the latest market close. Past performance does not guarantee future results.
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Choose your own date and amount for STEM$1,000 Investment Over Time
STEM vs S&P 500Year-by-Year Returns
STEM annual performance| Year | Start Price | End Price | Annual Return | Cumulative |
|---|---|---|---|---|
| 2015 | $4.59 | $3.75 | -18.3% | -18.3% |
| 2016 | $3.69 | $11.52 | +212.2% | +151.0% |
| 2020 | $9.76 | $20.46 | +109.6% | +345.8% |
| 2021 | $17.90 | $379.40 | +2019.6% | +8165.8% |
| 2022 | $384.80 | $178.80 | -53.5% | +3795.4% |
| 2023 | $169.00 | $77.60 | -54.1% | +1590.6% |
| 2024 | $74.80 | $12.06 | -83.9% | +162.7% |
| 2025 | $15.51 | $15.05 | -3.0% | +227.9% |
| 2026 | $16.96 | $7.18 | -57.7% | +56.4% |
About Stem Inc
Services-computer Integrated Systems Design · NYSE
Stem, Inc. (NYSE: STEM) is a technology-focused clean energy company that uses software and services to help asset owners, operators, and other stakeholders plan, deploy, and operate solar, energy storage, and hybrid clean energy assets. According to the company’s public statements, Stem is "reimagining technology to support the energy transition," with a focus on turning operational complexity into clear, data-driven decisions across large clean energy portfolios.
Stem describes itself as a global leader in AI-enabled clean energy software and services. Its integrated software suite, branded as PowerTrack, is characterized by the company as an industry standard for asset monitoring and portfolio management. Stem reports that it manages global projects in 55 countries and that customers have relied on the company for nearly 20 years to maximize the value of their clean energy projects. The company’s common stock is listed on the New York Stock Exchange under the ticker symbol STEM.
Business model and solutions
Stem’s business centers on software, edge hardware, and managed and professional services that support the full lifecycle of clean energy assets. The company states that it offers a "complete set of solutions" that transform how solar and energy storage projects are developed, built, and operated. These solutions include an integrated suite of software and edge products, along with lifecycle services delivered by technical and engineering teams.
Historically, Stem has been known for energy storage systems that bundle third-party hardware with proprietary software. More recent disclosures emphasize a strategic realignment toward a software-centric model, with recurring revenue from subscription contracts for solar software, storage software, and managed services. The company tracks metrics such as annual recurring revenue (ARR) and contracted annual recurring revenue (CARR) to reflect the scale of its subscription-based business.
PowerTrack software platform
PowerTrack is at the core of Stem’s offering. The company describes PowerTrack as an integrated software suite that supports asset monitoring, control, and optimization for solar, storage, and hybrid solar-plus-storage projects. PowerTrack is used for centralized portfolio management and is paired with edge products such as the PowerTrack Power Plant Controller (PPC) and PowerTrack SCADA capabilities.
Stem has also introduced PowerTrack Energy Management System (EMS), which it describes as an intelligent control system that manages battery charging and discharging while coordinating grid services and enabling revenue streams for energy storage projects. PowerTrack EMS integrates modular hardware and software architecture, including centralized portfolio management, PPC, SCADA, and an edge user interface, and is designed to support diverse equipment configurations.
The company has rebranded its long-standing Athena platform as PowerTrack Optimizer, positioning it as the flagship enterprise platform powering managed services. PowerTrack Optimizer is described as the intelligent core of Stem’s managed services, with capabilities that include forecasting, value stacking, real-time dispatch, constraint management, financial optimization, 24/7 monitoring and asset alerts, operational visualization and reporting, and project valuation.
Clean energy asset management focus
Stem’s public materials emphasize its role in helping commercial, industrial, and utility-scale customers manage complex solar and storage portfolios. The company reports that it manages more than 30 gigawatts of solar assets and nearly 2 gigawatt-hours of battery energy storage systems, and that its PowerTrack platform is used by a large number of commercial and industrial players and community solar asset owners in the United States. Stem also highlights projects such as the Camino Solar project in California, where its PowerTrack PPC and data acquisition systems were deployed to meet technical standards for grid interconnection.
In addition to software, Stem provides professional and managed services. These services include project management, engineering advisory and design, configuration, testing, commissioning, real-time monitoring, issue detection and resolution, warranty and field service management, and participation in programs such as demand response. The company positions its integrated lifecycle services and operational expertise as enabling customers to improve financial, operational, and sustainability outcomes from their clean energy assets.
Global footprint and sector positioning
Stem states that it manages global projects in 55 countries and has expanded its presence in regions such as Europe, the Middle East, and Africa (EMEA). For example, the company has described its Berlin office as a European competence center that centralizes engineering, sales, and customer success teams to support utility-scale solar, storage, and hybrid projects across EMEA. Through this hub, Stem aims to address technical challenges such as hybrid solar-plus-storage integration, merchant market risk management, and optimization in complex pricing environments.
While the company is classified under Optical Instrument and Lens Manufacturing in some industry taxonomies, its own descriptions consistently frame its core business as clean energy technology, with a particular emphasis on software-enabled management of solar and energy storage assets. Stem’s disclosures also reference AI-driven and AI-enabled capabilities within its platform, as well as the planned integration of large language model technology into the PowerTrack suite through features such as PowerTrack Sage.
Strategic realignment and capital structure
Stem has communicated a strategic realignment toward a software- and services-centric model, consolidating its offerings under the Stem brand and the PowerTrack product family. The company has unified the legacy AlsoEnergy and Stem offerings into a single platform approach and refreshed its corporate identity and investor materials to reflect this focus.
On the capital side, Stem has reported actions such as a 1-for-20 reverse stock split of its common stock, implemented to regain compliance with NYSE minimum average closing price requirements, and a privately negotiated exchange of portions of its convertible senior notes for new senior secured PIK toggle notes and warrants. These transactions are described in the company’s Form 8-K filings and are presented as steps that adjust the company’s debt profile and liquidity.
Corporate governance and legal matters
Stem’s SEC filings describe ongoing governance and structural changes, including amendments to its bylaws to reduce the quorum requirement for shareholder meetings and board-level appointments. The company has also disclosed the dismissal with prejudice of a putative securities class action in the United States District Court for the Northern District of California, as reported in a Form 8-K.
Through these disclosures, Stem presents itself as a publicly traded clean energy technology company focused on software, edge hardware, and services that support the development, operation, and optimization of solar, storage, and hybrid energy projects across multiple regions and regulatory environments.
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Frequently Asked Questions
Stem Inc investment returns
How much would $1,000 invested in Stem Inc be worth today?
If you invested $1,000 in Stem Inc (STEM) 10 years ago on 2016-07-08, your investment would be worth $2,004 today, representing a +100.4% total return, growing at a compounded rate of 7.2% per year (CAGR).
Has Stem Inc outperformed the S&P 500?
Over the past 10 years, STEM returned +100.4% compared to +251.6% for the S&P 500, underperforming the benchmark by 151.2 percentage points.
What is Stem Inc's average annual return?
The compound annual growth rate (CAGR) of STEM over the past 10 years is 7.2%, growing at a compounded rate each year. Individual years vary significantly — STEM's best recent year was 2021 (+2019.6%) and worst was 2024 (-83.9%).
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