SI
STEM, INC. (STEM)·Q3 2025 Earnings Summary
Executive Summary
- Revenue of $38.2M, up 31% YoY, with GAAP gross margin at 35% and non-GAAP gross margin at 47%; adjusted EBITDA was $2.0M and operating cash flow was $11.4M . ARR reached $60.2M (+3% QoQ, +17% YoY) and cash/equivalents rose to $43.1M .
- Guidance tightened: FY25 revenue $135–$160M (raised low end), non-GAAP GM 40–50% (raised), adjusted EBITDA -$5M to $5M (raised low end), operating cash flow -$5M to $5M (lowered from $0–$15M), year-end ARR unchanged at $55–$65M .
- Sequential bookings/backlog declined (bookings $30.3M; backlog $22.2M) on deliberate de-emphasis of low-margin battery hardware resales; storage AUM up 6% QoQ to 1.8 GWh and solar AUM up 4% QoQ to 33.9 GW .
- Near-term stock catalysts: visibility and margin credibility from raised gross margin guidance, second consecutive positive adjusted EBITDA, and international expansion/product launches (PowerTrack EMS; Sage) offset by expected Q4 gross margin mix compression from edge deliveries .
What Went Well and What Went Wrong
What Went Well
- Second consecutive quarter of positive adjusted EBITDA ($2.0M) and strong gross margins (GAAP 35%; non-GAAP 47%) demonstrating software-centric operating leverage . “We have reduced the historical volatility… de-risked the low end of nearly all guidance ranges” — CEO Arun Narayanan .
- Positive operating cash flow ($11.4M) and sequentially higher cash/equivalents ($43.1M), underpinning improved liquidity and sustainability of the model — “underlying quality and sustainability” — CFO Brian Musfeldt .
- Strategic execution: launch of PowerTrack EMS to expand TAM into utility-scale/hybrid internationally and rebrand Athena to PowerTrack Optimizer; initial bookings within 8 weeks across three countries; continued ARR growth (+17% YoY to $60.2M) .
What Went Wrong
- Sequential softness in bookings ($30.3M vs. $34.3M in Q2) and backlog ($22.2M vs. $26.8M in Q2) due to de-emphasis of low-margin battery hardware and higher quarterly revenue recognition pulling backlog lower .
- Managed services revenue down YoY given one-time overperformance in Q3’24; project/professional services down YoY (prior-year dev co revenue boost) — press release and call commentary .
- FY25 operating cash flow guidance lowered to -$5M to $5M (from $0–$15M), acknowledging working capital timing risk; management flagged macro/policy headwinds (tariffs/OBBB/geopolitics) as ongoing external risks .
Financial Results
Segment breakdown (current quarter):
Key KPIs:
Estimate comparisons (S&P Global):
Values retrieved from S&P Global. Note: Q2 2025 S&P “Primary EPS actual” differs from GAAP EPS per 8-K (basic $24.31; diluted $(1.79)), reflecting methodology differences around “Primary EPS” and extraordinary items (debt extinguishment) .
Guidance Changes
Earnings Call Themes & Trends
Management Commentary
- CEO: “Our diversified AI-driven platform continues to capitalize on rising energy demand… we have reduced the historical volatility… de-risked the low end of nearly all guidance ranges” .
- CFO: “Operating cash flow generation and stabilization of cash reflect the underlying quality and sustainability of our business model… raising gross margin and adjusted EBITDA ranges” .
- Strategy: Unification under PowerTrack suite; launch of PowerTrack EMS and rebrand of Athena to PowerTrack Optimizer; expansion in Berlin as European competence center .
Q&A Highlights
- Guidance precision: Management reiterated tracking to midpoint/high end across metrics with lower battery resale range, while tightening ranges overall .
- Gross margin outlook: Q4 compression due to edge hardware mix; medium-term continued margin improvement as OEM hardware is de-emphasized .
- Bookings and EMS demand: Early enthusiasm and bookings for PowerTrack EMS in small utility-scale hybrid sites (20–100MW), with ~6–9 month lead times .
- Macro/customer engagement: Despite policy uncertainty (tariffs/IRS guidance), customer engagement momentum maintained; diversified software-centric model offsets domestic headwinds .
- Operating expense run-rate: Cash OPEX down ~47% YoY; expect current trend to be a reasonable indicator with continued efficiency focus; exit of India facility cited .
Estimates Context
- Q3 2025 revenue modestly above consensus ($38.24M actual vs. $37.93M estimate)* and EPS beat (Primary EPS $(1.93) actual vs. $(2.37) estimate)*. Q1 beat on both metrics; Q2 revenue beat but EPS miss on S&P “Primary EPS” due to methodology/extraordinary items; GAAP 8‑K shows positive basic EPS in Q2 . Values retrieved from S&P Global.
- FY25 estimates likely to adjust: upward for non-GAAP gross margin given range raised to 40–50%, and for adjusted EBITDA (higher low end), while battery resale lowered and operating cash flow range reduced to reflect working capital timing .
Key Takeaways for Investors
- Margin credibility is improving: non-GAAP GM raised to 40–50% and two straight quarters of positive adjusted EBITDA, supporting a higher-quality earnings profile .
- Mix pivot is working: deliberate de-emphasis of low-margin battery hardware is compressing backlog/bookings short term but enhancing blended gross margins and profitability .
- Cash discipline: Q3 operating cash flow positive and cash stable; watch for working capital timing in Q4 per guidance discussion .
- Product catalysts: PowerTrack EMS expands TAM into utility-scale/hybrid internationally; PowerTrack Sage (AI assistant) enters beta in December — potential narrative tailwinds .
- International strategy: Berlin hub and multi-country EMS bookings diversify exposure away from U.S. policy risk and support growth in EMEA markets .
- Estimate trajectory: Street likely to lift margin and EBITDA assumptions; monitor Q4 edge hardware deliveries for mix-driven gross margin compression .
- Risk monitor: Policy/tariff headwinds persist; however, elimination of PCGs reduces legacy risk; focus on recurring ARR growth provides stability .