Key Highlights

● OPAL Fuels shares fell roughly 6% to about $2.46 on August 11, 2026 following second-quarter 2026 results released August 10.

● Adjusted EBITDA jumped 40% year over year to $23.1 million, a strong headline profitability metric.

● GAAP results swung to a net loss even as the adjusted EBITDA figure improved, highlighting reliance on Section 45Z clean-fuel production tax credits.

● RNG production volumes came in below some internal targets, adding to investor caution about the underlying Business trajectory.

OPAL Fuels Inc. (Nasdaq: OPAL), the vertically integrated renewable Natural Gas (RNG) producer and fuel-dispensing company, saw its shares decline in the days following second-quarter 2026 results released August 10. The stock fell roughly 6% to about $2.46 on August 11, and traded near $2.15–$2.21 by mid-August, according to multiple market data sources. The drop came even as OPAL reported adjusted EBITDA up 40% year-over-year to $23.1 million, underscoring a familiar tension for the company: strong headline profitability metrics leaning heavily on Section 45Z clean-fuel production tax credits, while GAAP results swung to a net loss and RNG production volumes came in below some internal targets.

Latest Development

OPAL Fuels reported second-quarter 2026 results on August 10. Revenue was $83.4 million, up about 4% from $80.5 million a year earlier, while adjusted EBITDA rose 40% to $23.1 million from $16.5 million. Despite that adjusted-metric strength, the company posted a GAAP net loss of $4.1 million versus Net Income of $7.6 million in the prior-year quarter, driven partly by a $4.1 million Impairment charge, higher interest expense ($8.6 million versus $6.6 million), and weaker results from equity-method investments. Diluted Class A EPS was a loss of $0.05, compared with a $0.03 profit a year earlier. Following the report, shares declined, with coverage attributing the move to investor skepticism that adjusted-EBITDA growth was driven substantially by 45Z tax credits and lower G&A rather than by underlying operating strength, alongside RNG production volumes that landed below expectations. No single additional company-specific announcement beyond the Earnings release itself could be independently verified as driving the subsequent price action.

What the Numbers Show

RNG production totaled 1.3 million MMBtu in the quarter, up about 4–8% year-over-year depending on the source cited, and 2.4 million MMBtu for the first half of 2026. Fuel Station Services volumes dispensed were 39.0 million gasoline gallon equivalents (GGEs), down about 4% year-over-year, while RNG dispensed as transportation fuel was roughly 20.9 million GGEs. By segment, RNG Fuel adjusted EBITDA improved to $18.6 million from $13.3 million, aided directly by 45Z credits, which management said contributed $4.1 million to quarterly adjusted EBITDA. The company's Renewable Power segment was a drag, with revenue down roughly 22% and segment adjusted EBITDA down roughly 88%. RIN inventory stood at 278,000 D3 credits valued at about $745,000 (roughly $2.68 per RIN), reflecting what management described as a "flat RIN environment", pricing that has not provided the tailwind it once did for RNG producers. On the balance sheet, OPAL held $91.4 million in cash and total Liquidity of $162.3 million (including an undrawn revolver and preferred Equity facility), against total Debt of $431.7 million, up from $352.1 million at year-end 2025. First-half capital expenditures were $52.7 million, up from $33.4 million a year earlier, reflecting continued buildout of RNG projects and fueling infrastructure. Management said it maintained full-year 2026 guidance, though specific numeric targets were not detailed in available reporting.

Why Investors Are Paying Attention

OPAL sits at the intersection of two policy-sensitive revenue streams: RIN credits under the EPA's Renewable Fuel Standard and the newer Section 45Z Clean Fuel Production Credit, which took over as a key incentive mechanism as older credits phased down. The company's April 2026 establishment of a $100 million Master Agreement to monetize 45Z credits highlights how central that program has become to near-term profitability, a reliance that cuts both ways. When credits and cost-cutting are doing more of the EBITDA lifting than Volume growth, investors reasonably ask how durable the earnings power is if policy support shifts. At the same time, OPAL's story includes a multi-year buildout: management pointed to more than 2 million MMBtu of additional annual design capacity expected online over the next 12 months (including the Cottonwood, Burlington, and CMS RNG projects) and roughly 3 million MMBtu within 24 months, plus a landfill-RNG expansion Partnership with waste operator GFL and identification of three to five renewable power sites as potential RNG conversion candidates. That pipeline, funded against $162.3 million of liquidity, is the crux of the long-term bull case even as near-term Credit dependency weighs on sentiment.

Bull Case

Supporters point to OPAL's vertically integrated model, owning RNG production from landfill and dairy gas sources through to fuel dispensing, as a structural advantage versus pure-play producers, giving it multiple ways to capture value across the RNG chain. The near-term project pipeline (Cottonwood, Burlington, CMS) offers a visible path to volume growth over the next one to two years, and Fuel Station Services revenue reportedly grew even as GGE volumes dipped. Management argues natural gas retains a durable cost advantage over diesel for heavy-duty fleets, a structural tailwind independent of credit markets. Adequate liquidity ($162.3 million) provides runway to fund growth capex without immediate dilution.

Bear Case

Bears note that adjusted EBITDA growth has leaned heavily on 45Z credits and G&A cuts rather than volume or Margin expansion, and that GAAP profitability has deteriorated, with a net loss replacing prior-year net income. RNG production missed some internal expectations, raising execution-risk questions about the scaling narrative. Total debt has risen meaningfully (to $431.7 million from $352.1 million at year-end 2025) while capex intensified, and the Renewable Power segment's steep decline signals uneven segment performance. RIN prices remain flat, limiting a historically important profit lever, and the company's dependence on federal tax-credit policy (45Z) exposes it to legislative or regulatory change. The sole analyst identified in recent coverage, Goldman Sachs' Adam Bubes, carries a Sell rating with a $2.20 price target as of mid-July 2026, reflecting cautious Street sentiment; other model-based forecasts show a wide range, underscoring low analyst coverage and consensus uncertainty.

What Could Move the Stock Next?

Investors should watch: further EPA guidance or Renewable Fuel Standard rulemaking affecting RIN pricing; U.S. Treasury/IRS guidance clarifying 45Z credit mechanics and duration; progress updates on the Cottonwood, Burlington, and CMS RNG projects reaching commercial operation; any changes to the $100 million 45Z monetization Master Agreement; quarterly production volumes relative to design capacity; debt covenant or refinancing developments given rising leverage; and any shift in Fortistar's ownership position, since the founder and controlling stockholder's dual-class Class A/Class B structure concentrates governance influence.

Profitability Metrics That Lean on Tax Credits

OPAL Fuels' second quarter captures the central debate around the stock: adjusted EBITDA is growing briskly, but a meaningful share of that growth traces to policy-linked tax credits and cost discipline rather than volume or margin expansion, while GAAP profitability has weakened and Leverage has increased. The company's RNG project pipeline offers a credible growth runway over the next one to two years, backed by adequate liquidity, but execution against design-capacity targets and the durability of 45Z and RIN-driven Economics remain open questions. With limited analyst coverage and a wide range of published price targets, investors weighing OPAL are essentially Underwriting both an infrastructure buildout story and a policy-dependent earnings model simultaneously, a combination that helps explain the stock's Volatility around each quarterly print.