Horizon Technology Finance Corp (HRZN) stock intrinsic value fair value estimate & owner earnings analysis

Horizon Technology Finance is a publicly traded lender (a business development company) that makes secured loans to venture-capital-backed technology, life science and healthcare companies. It earns interest and end-of-term payments on those loans, pays interest on its own borrowings and fees to its external manager, and distributes most of what is left to shareholders. How we measured earnings. A lender's operating cash flow is dominated by loans made and repaid, so it says little about what shareholders earn. We instead used net investment income (interest and fees, less interest expense, management fees and other costs) plus net realized gains and losses on loans. Realized losses are counted because they are real, recurring credit costs for a venture lender; unrealized mark-to-market swings are not counted. This earnings measure per diluted share was $1.23 in 2021, $1.08 in 2022, $1.02 in 2023, $0.36 in 2024 and a loss of $0.32 in 2025. Net investment income itself held up (about $44.4 million in 2025, or $1.05 per share), but realized losses grew from $3.6 million in 2021 to $34.6 million in 2024 and $57.9 million in 2025. The 2025 figure includes a $25.1 million loss on investments in controlled affiliates. Net asset value per share fell from $11.56 at the end of 2021 to $6.98 at the end of 2025, which confirms these losses were real. A changed company. In August 2025 Horizon agreed to merge with Monroe Capital Corporation, issuing roughly 23 million shares (about 34% of the combined company on the illustrative figures in the 10-K). The filings for the quarter ended June 30, 2026 show net assets of $417.5 million, net asset value of $6.23 per share (implying about 67 million shares), and $4.4 million of merger costs, so the merger appears to have completed. Because the share count has grown from about 42 million to about 67 million, per-share history overstates what each share now earns, and we value on the current share base. Monroe's loan portfolio was to be sold for cash as part of the deal, so Horizon's investment portfolio of $677 million at fair value (June 2026) is only modestly larger than the $647 million at year-end 2025. We could not reconcile the post-merger earnings run-rate in detail from the full text of the latest quarterly report, so the second-quarter figures were used only as a sanity check. Base case. We assume yearly net investment income of about $45 million (in line with the $44.4 million earned in 2025, with no credit for redeploying the cash received in the merger, since that has not yet happened) and realized losses of about $32 million a year (2024 losses were $34.6 million; 2025 losses excluding the single $25.1 million controlled-affiliate loss were about $32.8 million). That leaves about $13 million, or roughly $0.19 per share on 67 million shares. This is higher than the 2025 result of a loss of $0.32 per share, but the difference is normalization of one identified loss, not growth. We credit no growth: earnings per share have fallen for three straight years, dividends per share ($1.32 in 2025) have exceeded earnings on this measure, and portfolio growth has depended on issuing new shares, which is not self-funded growth. We therefore let the stream drift down about 2% a year, giving about $2.40 per share. The lending franchise has operated since 2010 and repeatedly replaces repaid loans, which is why value does not fade to zero. Bear case. Net investment income slips to about $38 million as the prime rate, the base for most of the variable-rate loans, has already lowered yields (total investment income fell 3.9% in 2025 after falling 11.9% in 2024), while realized losses stay near $35 million. That leaves only about $3 million, or roughly $0.045 per share, declining about 5% a year. Value is about $0.40 per share. Leverage worsens this case: interest expense was $32.8 million in 2025, about 65% of total expenses of $50.5 million, and it is paid before shareholders earn anything. Bull case. The cash from the merger is put to work at yields near the 14.6% portfolio yield reported for 2025, lifting net investment income to about $47 million, and realized losses ease to about $21 million (still well above the $3.6 million and $9.5 million of 2021 and 2022). That leaves about $26 million, or $0.39 per share, drifting down about 1% a year, for about $5.60 per share, below the $6.23 reported net asset value. We did not credit a return to the low loss levels of 2021 and 2022 because nothing in the recent record shows that is happening. What would make this wrong. If realized losses prove to be a one-time cleanup rather than a recurring cost, the stream is worth more than our base case. If the newly merged portfolio contains further problem loans, the bear case applies. The bear and base cases are worth far less than reported book value because losses have been consistent and this measure of earnings has been well below the dividend. Following our valuation method, we do not subtract debt or add cash on top of these values; debt costs are already reflected in earnings through interest expense, and the cash received in the merger is credited only through the earnings it can produce. The margin-of-safety price is about $1.20, which sits well above the bear case and well below the base case. It applies once there have been two consecutive quarters where realized losses are clearly below net investment income, indicating the portfolio has stabilized.