Key Highlights

● Stem Inc fell roughly 7.5% after reporting second-quarter 2026 results pairing a double-digit Revenue decline with continued profitability progress.

● Revenue slipped 12% year over year to $33.7 million, even as adjusted EBITDA rose to $6.2 million, up about 63%.

● The company posted a GAAP net loss of $14.4 million, with GAAP gross Margin of 41% and non-GAAP gross margin of 55%.

● Stem Inc is an energy-software company whose profitability trajectory is improving even as its top-line growth has stalled.

Stem, Inc. (NYSE: STEM) fell roughly 7.5% after the energy-software company reported second-quarter 2026 results that paired a double-digit revenue decline with continued progress on profitability. Revenue slipped 12% year over year to $33.7 million, even as adjusted EBITDA rose to $6.2 million, the company's fifth straight quarter in positive territory. The split-screen quarter, strong on margins but soft on top-line growth, left investors weighing Stem's transition from a hardware-heavy reseller into a higher-margin software Business against the reality that reported sales are still shrinking.

What Happened?

On August 12, 2026, Stem announced its second-quarter results. Revenue of $33.7 million was down 12% from $38.4 million a year earlier. The company swung to a GAAP net loss of $14.4 million, compared with Net Income of $202.5 million in the year-ago quarter, a prior-period figure that reflected large non-operating items and is not comparable to underlying operations.

The more encouraging line items were on profitability and pipeline. Adjusted EBITDA improved to $6.2 million from $3.8 million a year earlier, up roughly 63%, marking a fifth consecutive positive quarter. GAAP gross margin expanded to 41% from 33%, and non-GAAP gross margin rose to 55% from 49%. Bookings jumped to $36.8 million, up 39% from the first quarter, and contracted Backlog grew to $27.1 million. Management reaffirmed full-year 2026 guidance. Despite the operational progress, the stock fell as the market focused on the shrinking revenue base.

Why Is STEM Stock Falling?

The decline came as investors zeroed in on the 12% revenue drop rather than the margin gains. Stem is deliberately de-emphasizing lower-margin hardware resale in favor of recurring software and services, a strategy that lifts profitability but compresses reported revenue in the near term. For a stock that many holders still value on growth, a double-digit sales decline, even a partly engineered one, is a difficult headline.

A second Factor is the quality-of-earnings optics. The year-earlier quarter's $202.5 million net income sets up an unfavorable-looking swing to a $14.4 million net loss, and while adjusted EBITDA is positive, GAAP profitability remains elusive. Investors in a turnaround story tend to want evidence that improving margins will eventually translate into a growing, GAAP-profitable business, and this quarter did not resolve that question. It is worth noting that Stem shares have been highly volatile around recent Earnings dates, so the roughly 7.5% move should be read as part of an ongoing repricing of a business in transition rather than a reaction to a single surprise.

The Numbers Investors Are Watching

The headline figures: Q2 2026 revenue of $33.7 million (down 12% year over year); adjusted EBITDA of $6.2 million (up about 63%); a GAAP net loss of $14.4 million; GAAP gross margin of 41% and non-GAAP gross margin of 55%.

Operationally, the metrics that speak to Stem's software pivot improved. Bookings of $36.8 million were up 39% sequentially, contracted backlog of $27.1 million rose 18% from the first quarter, annual Recurring Revenue (ARR) reached $62.4 million, and contracted ARR (CARR) hit $69.0 million. Cash and equivalents stood at $38.4 million, a figure investors will monitor closely given the company's history of cash burn.

For full-year 2026, Stem reaffirmed guidance of $140 million to $190 million in revenue, non-GAAP gross margin of 40% to 50%, adjusted EBITDA of $10 million to $15 million, and year-end ARR of $65 million to $70 million. Hitting the ARR target would confirm that the recurring-revenue base is compounding even as legacy hardware revenue rolls off.

The Bigger Picture

Stem provides AI-driven software and services for clean-energy assets, helping owners of battery storage and solar portfolios optimize dispatch, trading and performance through its Athena and PowerTrack platforms. The company went public via SPAC in 2021 and, like many clean-energy names from that vintage, has spent the past two years restructuring toward a leaner, software-centric model after early growth was dominated by low-margin hardware sales.

That transition is the throughline of recent quarters. Earlier in 2026, Stem's first-quarter report also showed a revenue dip alongside margin expansion, and the stock has been sharply reactive to each print. The Q2 results extend the pattern: profitability metrics are moving in the right direction, five straight positive adjusted-EBITDA quarters, higher gross margins, growing ARR and bookings, while reported revenue continues to contract as the company sheds its hardware legacy. The market's challenge is valuing a business whose margins and recurring revenue are improving even as its Top Line shrinks.

What Could Happen Next?

The next scheduled catalyst is Stem's third-quarter 2026 report, expected in the autumn, where investors will look for continued positive adjusted EBITDA, further ARR growth toward the $65 million–$70 million year-end target, and evidence that revenue is stabilizing. Progress on bookings and backlog conversion will signal whether the software pipeline is translating into recognized revenue.

Beyond earnings, watch the cash trajectory against the $38.4 million balance, any commentary on Capital needs, and management's execution on the reaffirmed full-year guidance. Updates on new software contracts, partnerships or additions to the contracted backlog could also move the stock. Given the shares' Volatility around recent reports, each of these data points has the potential to drive outsized reactions in either direction.

Bottom Line

Stem's roughly 7.5% drop reflects a market that rewarded margins but punished shrinking revenue. The quarter was genuinely mixed: a 12% revenue decline and a GAAP net loss on one side, and a fifth consecutive positive adjusted-EBITDA quarter, expanding gross margins, and growing ARR, bookings and backlog on the other. The core question is whether Stem's deliberate shift away from hardware toward recurring software can eventually deliver both growth and GAAP profitability. Until reported revenue stabilizes, investors are likely to stay cautious. Key things to monitor: the Q3 print, ARR progress toward year-end guidance, and the $38.4 million cash balance.