Gevo, Inc. (GEVO) stock intrinsic value fair value estimate & owner earnings analysis

What the business is. Gevo spent more than a decade as a development-stage renewable-fuels company. From 2016 through 2024 it never produced positive cash earnings. Owner earnings, meaning the cash left for shareholders after running and maintaining the business and paying stock-based pay, ranged from about -$19 million to -$145 million a year. The company paid for this by issuing new shares repeatedly, and the share count rose more than a thousandfold after adjusting for reverse splits. In January 2025 Gevo acquired the Red Trail Energy ethanol plant in Richardton, North Dakota, for about $198 million in cash. The plant is now called Gevo North Dakota. It can make about 67 million gallons of ethanol a year plus distillers grains and corn oil. It also has an operating, permitted underground well that captures and stores about 165,000 tons of CO2 a year. Gevo also runs a dairy-manure renewable natural gas project in northwest Iowa and a small carbon-accounting software business. In the second quarter of 2026 it abandoned its planned jet-fuel plant at Lake Preston, South Dakota, and wrote off $176 million: $136 million of project assets and a $40 million allowance against development deposits. Where the money actually comes from. Because of the carbon capture, the North Dakota ethanol has a very low carbon score. That qualifies it for the federal Section 45Z clean-fuel production credit, which Gevo sells to third parties for about 93.5 cents per dollar of credit. Gevo recognized $52.0 million of these credits in the 11 months it owned the plant in 2025 and $32.0 million in the first half of 2026. The credits are essentially the whole profit. In 2025 the North Dakota plant earned about $42 million in operating income including the credits, but only about $7.5 million a year before depreciation without them. Company-wide owner earnings in 2025 were about -$12 million (-$0.05 a share). In the first half of 2026 they were roughly break-even. Holding-company overhead and project development still cost about $40-50 million a year in cash. Interest on the $175 million term loan runs at 10-12%, about $20 million a year. Two dates matter. Under the July 2025 federal tax law, the 45Z credit ends after December 31, 2029. The term loan secured by the North Dakota assets matures on January 31, 2030. We value the business only on what exists and is legally in place, so we give no credit for the tax credit being extended again, for the planned jet-fuel plant in North Dakota, or for new carbon-removal contracts. None of these is signed or under way. How we treated the accounting. We counted the full 45Z credit as earnings in the year it is generated, even when the sale happens a few months later. We treated the unsold portion as a timing item, not lost value. We did not count the one-time write-offs as costs, but we left the abandoned project out of every case. Before 2025 the company was a different, pre-revenue business, so our starting point is the post-acquisition period only: fiscal 2025, backed up by the first half of 2026. Base case ($0.26 a share). Through 2029, the business earns roughly break-even to slightly positive owner earnings, about -$3 million in 2026 and about +$4 million a year in 2027-2029. That includes a 10-15% output increase at North Dakota from equipment work that is already paid for and in progress. After 2029 the tax credit ends, and the company as it is structured today would lose money. Our base case assumes the operating assets are worth what they can earn on their own. For North Dakota, that means ordinary ethanol margins plus the federal Section 45Q carbon-storage credit, which the plant can claim once it stops using 45Z, until about mid-2034. For the Iowa gas project, it means its own cash flow. From that value we subtract the $175 million loan and the cost of winding down the holding company. That leaves roughly $60 million of equity value in today's money. Bear case (-$0.40 a share). Owner earnings stay at the 2025 level of about -$12 million a year through 2029. Ethanol margins without the credit match 2025's thin level. The holding company keeps burning cash and has to raise money by issuing more shares, as it has done throughout its history. By early 2030 the plant and gas project would be worth roughly $95 million less than the debt against them plus wind-down costs. In this case the company owes more than it is worth, and shareholders would likely be wiped out in a refinancing. Bull case ($0.90 a share). Credits keep coming in at the first-half-2026 pace of about $64 million a year, plus the North Dakota output increase. Ethanol margins hold near first-half-2026 levels. Leaving the Lake Preston project saves about $10 million a year in development spending. Part of the $40 million in written-off deposits is recovered, since they were contractually refundable. Owner earnings reach about $20 million a year in 2027-2029, and the assets are worth well above the debt in 2030. Even this case assumes the credit ends in 2029. What would make this wrong. The main upside risk to our estimate is Congress extending 45Z beyond 2029, or Gevo actually financing and building its North Dakota jet-fuel plant. The main downside risks are refinancing the loan in January 2030, the holding company's cash costs, and further share issuance. We could not break the North Dakota plant's first-half 2026 results into credit and non-credit earnings as precisely as for 2025, so the ethanol margin used after 2029 is an estimate drawn from the 2025 segment figures.