Stem (STEM) Q4 2025 earnings review
Software Pivot Achieves First Full-Year Positive EBITDA
Stem has successfully executed its strategic pivot away from low-margin battery hardware towards a high-margin, software-centric model. While Q4 revenue declined 15% YoY to $47.2M due to the intentional de-emphasis of hardware sales, core Software, Services, and Edge Hardware revenue surged 62% to $46.5M. This dramatic mix shift drove GAAP gross margins from -4% a year ago to a record 49%. The structural improvements allowed the company to achieve its first-ever full year of positive Adjusted EBITDA ($6.7M) and positive Operating Cash Flow ($6.9M). Guidance for FY26 points to continued, sustainable profitability.
🐂 Bull Case
The company fundamentally altered its margin profile. Software, services, and edge hardware now account for 98.5% of quarterly revenue, completely eliminating the drag of legacy, low-margin battery resale.
Delivering positive operating cash flow and adjusted EBITDA for the full year removes previous liquidity concerns and validates the aggressive cost-cutting measures taken earlier in 2025.
🐻 Bear Case
As the legacy hardware business rolls off, the company is shrinking its total revenue footprint. FY26 guidance implies only modest total revenue growth from the new, smaller baseline.
Contracted Annual Recurring Revenue (CARR) declined sequentially from $70.1M to $67.2M, driven by lower bookings and the cancellation of a $3M managed services engagement.
⚖️ Verdict: 🟢
Bullish. Management promised a difficult but necessary transformation to save the business, and they delivered exactly that. While headline revenue growth is messy, the underlying software growth (+62% in Q4) and cash flow generation provide a stable foundation for the future.
Key Themes
Software & Services Growth Engine Accelerating
The core thesis for Stem's turnaround is working. Core software, services, and edge hardware revenue hit $46.5M in Q4, up an accelerating 62% YoY. For the full year, this segment grew 25% to $141.4M. This growth is highly accretive, directly leading to the structural expansion in gross profitability.
Structurally Lower Cost Base
Stem's 2025 reduction-in-force and pivot away from low-margin business lines successfully realigned the cost structure. Q4 Adjusted EBITDA grew to $5.5M, ensuring that the gross margin gains effectively flowed down to the bottom line without being consumed by bloated operational expenses.
PowerTrack EMS Securing International Wins
The newly introduced PowerTrack Energy Management System (EMS) is demonstrating early traction in utility-scale deployments. The platform was recently selected to support Everyray GmbH's 100 MWh utility-scale battery energy storage systems across two sites in Germany, validating the software's capability in European markets.
CARR Decelerating Due to Cancellations
Despite strong ARR growth, Contracted Annual Recurring Revenue (CARR) experienced a reversing trend, falling 4% sequentially to $67.2M from $70.1M at the end of Q3. Management explicitly attributed this to the cancellation of a managed services engagement representing $3M in CARR and 0.1 GWh in AUM, highlighting the risk of concentrated customer churn.
AI Integration via PowerTrack Sage
Stem continues to heavily promote 'PowerTrack Sage'—an AI-powered assistant for solar and storage data analysis. As the company pushes deeper into the software ecosystem, incorporating AI capabilities is intended to differentiate the platform against basic monitoring tools and increase customer stickiness.
Macroeconomic and Policy Headwinds
Management continues to flag macroeconomic uncertainty, specifically citing the 'One Big Beautiful Bill (OBBB)' and global inflationary pressures as risks that could slow customer deployments or impact hardware availability, even though their primary exposure has shifted to software.
Other KPIs
Reversing trend. This is a massive improvement from the $(36.7) million burn in FY24. Achieving positive operating cash flow validates that the current software-focused business model is self-sustaining and greatly reduces the likelihood of needing dilutive external financing in the near term.
Investors should interpret this headline figure with extreme caution. While the GAAP net income indicates a massive reversal from the $(854.0) million loss in FY24, the FY25 result was heavily inflated by a one-time $220.0 million gain on the extinguishment of debt in Q2. Without this accounting gain, operations would have yielded a net loss.
Stable. The backlog rose slightly YoY (from $20.9M) but fell 4% sequentially from Q3's $22.2M. Under the company's stricter definition adopted earlier in 2025 (only counting fully executed purchase orders for hardware/non-recurring services), this smaller figure accurately reflects the intentional wind-down of legacy hardware bookings.
Guidance
Accelerating. The midpoint of $12.5M implies an ~85% year-over-year increase compared to FY25's $6.7M. This demonstrates that management believes the new software-centric cost structure offers significant operating leverage as recurring revenue scales.
Stable. The midpoint of $165M represents approximately 5% growth over FY25's $156.3M. However, underneath the surface, core software/services are guided to $130-150M while legacy battery hardware will be 'up to $40M', indicating the quality of this revenue will be much higher.
Accelerating. The midpoint of $67.5M implies roughly 10% growth from the Q4 2025 ending ARR of $61.1M. This continued expansion of the recurring revenue base is critical to maintaining the 40-50% gross margins guided for the upcoming year.
Key Questions
Managed Services Cancellations
CARR fell sequentially due to the cancellation of a $3M managed services contract. Was this customer lost to a competitor, an internal project failure, or an asset decommissioning? Are there other legacy contracts at similar risk of churn?
PowerTrack EMS Bookings Conversion
You announced significant initial bookings for PowerTrack EMS in international markets following its launch. What is the typical lag between these software bookings and ARR recognition, and how much of the $65-$70M 2026 ARR guidance depends on EMS scaling?
Hardware Resale Strategy
Guidance leaves room for up to $40M in battery hardware resale in 2026. Is this strictly working through remaining historical backlog obligations, or are you still taking new opportunistic, low-margin hardware orders to pull through software deals?
Sustaining Operating Leverage
With the massive restructuring behind you, how do you view the optimal run-rate for cash operating expenses in 2026? Is the current OpEx footprint sufficient to support the 10%+ ARR growth, or will targeted hiring resume?