Institutional ticker directory tracking stock mentions, long/short ideas, and high-conviction pitches extracted from quarterly hedge fund letters.
| Ticker | Company | Sector | Industry | Pitches | Stance |
|---|---|---|---|---|---|
| Fund / Manager | Thesis Excerpt | Stance | Period / Date | Action |
|---|---|---|---|---|
Liberty Park Capital Management Charles P. Murphy | “ARQ shares fell after third-quarter results disappointed. Ongoing delays in granular activated carbon (GAC) production ramp-up led to downward revisions to guidance. Management acknowledged operational challenges that pushed out expected revenue contributions. Investor confidence weakened as timelines slipped and execution risk increased. BSD Analysis: Arq is a transition story moving from legacy activated carbon into cleaner, specialty materials. Execution risk is high, and the market prices it accordingly. Demand for environmental solutions provides real relevance, not just ESG marketing. Near-term financials remain messy as the business reshapes itself. Investors assume permanent dysfunction too quickly. If new products scale, margin structure improves materially. Capital discipline will decide the outcome. This is not a compounder yet. It's industrial optionality with asymmetric payoff.” | BULL | Q4 2025 Jan 21, 2026 | View Pitch |
Minot Light Capital Partners Tom Wetherald and Eddie Reilly | “Two examples of what we would consider to be “gray area” losses that adversely affected us in 4Q25 were Arq (ARQ) and Lakeland Industries. ARQ suffered very expensive delays in its efforts to bring on the GAC capacity we were counting on to drive growth going forward. These issues now appear to go beyond simple delays and into a potential questioning of their core underlying production methodology. This has led to a significant reduction in cash flow expectations, which has also brought the company's balance sheet into play. While not viewed as a terminal situation, execution risk increased materially. BSD Analysis: Arq is transitioning from legacy activated carbon into cleaner, specialty materials. Execution risk is high during business transformation. Demand for environmental solutions provides long-term relevance. Near-term financials remain messy. Investors price skepticism appropriately. If new products scale, margins improve materially. Capital discipline will decide survival. This is industrial reinvention under pressure. Optionality outweighs comfort.” | BULL | Q4 2025 Jan 15, 2026 | View Pitch |
Minot Light Capital Partners Tom Wetherald and Eddie Reilly | “Arq is one of the largest producers of activated carbons in the United States. Activated carbons are used by a wide variety of industries with the end goal of purifying and removing contaminants in water, air, and soil. Arq owns the Five Forks Mine in Saline, LA, which primarily produces lignite coal, the principal input into the company's powdered activated carbon (PAC) products. In 2023, the company purchased feedstock in Corbin, KY giving it access to high quality recovered bituminous coal reserves, the principal input into the company's granulated activated carbon (GAC) products. We find that Arq is extremely well positioned in the current environment given that it is the only domestic activated carbon producer with a fully vertically integrated supply chain. Historically, the company's primary revenue source has been the slow-growing PAC business. We have been impressed with CEO Robert Rasmus's management of the more mature PAC business since his arrival in July 2023. Rasmus's focus has been on eliminating negative margin PAC contracts and cutting operating expenses, which has resulted in gross margins expanding from 28% to over 39% in the last twelve months, leading the company to generate positive operating cash flow in FY24. However, our bull-case is centered around growth prospects for the emerging GAC segment. Arq has spent over $80M on the construction of a granulated activated carbon (GAC) plant at its Red River Facility in Louisiana. The company recently announced that it has commissioned its first GAC line at the facility and expects to ramp up production to its nameplate capacity of 25M lbs (all incremental) in 6 months. Importantly, GAC is higher quality than PAC due to its longer contact time, mechanical strength, and more uniform absorption control – as such, it demands a higher price in the market and exposes the company to large new market opportunities. Arq has also fully permitted a second line that will produce an additional 25M lbs of GAC that has yet to break ground. The industry outlook for the GAC market is currently shaped by supply shortages with minimal capacity entering the market. However, there is reason to believe demand for GAC could accelerate meaningfully. One of the largest opportunities for GAC is in managing contaminant levels of PFAS in municipal drinking water. The EPA, under the Safe Drinking Water Act, recently proposed maximum contaminant levels for PFAS within municipal drinking water, and while the compliance deadline is likely to be extended from 2029 to 2031, we foresee increased GAC demand from institutions looking to get ahead of this regulatory change. Arq anticipates the demand for GAC could increase 3-5x for the water market as a result of this regulation. With strong demand for GAC expected going forward and minimal capacity (which would require a long lead time) being brought online, we anticipate revenue growth acceleration and non-linear profitability growth for Arq in the coming years. We initiated a small position in ARQ in March but started aggressively accumulating shares in May after the company reported its 1Q25 earnings, where gross margins came in lower than consensus as a result of start-up costs associated with its new GAC line. We viewed the margin miss as temporary, as the company had been incurring overhead costs related to the GAC line while producing little to no GAC revenue. At $3.66 per share, we found that there to be very little downside, based solely on the company's legacy PAC operations with no value being placed on the company's future earnings from the significant GAC growth opportunity. Arq remains a top 5 position for the fund today. BSD Analysis: Arq is an environmental-tech microcap attempting to commercialize cleaner carbon-based products using waste-conversion IP. The science is intriguing, the TAM is large, and early commercial interest is legit — but scaling risk is extreme. The balance sheet is tight, making execution the difference between a home run and a wipeout. The stock trades like a distressed option, which is exactly what it is. Bears dismiss the tech; bulls see a misunderstood industrial innovator. If Arq lands a major commercial contract, everything changes quickly. High-risk, binary, asymmetric.” | BULL | Q3 2025 Oct 1, 2025 | View Pitch |
Each excerpt above is the manager's commentary on this ticker specifically. The full letter has the rest of their portfolio thinking, risk discussion, and broader institutional context.
