USLM

Analyst Note: USLM (United States Lime & Minerals, Inc.)

Date: 2026-06-19 Event Date: 2026-06-19

1. Structural Readiness

• Conservative Entry: $138.58
• Current Price: $113.60
• Extension: -18.0% vs. conservative entry

2. Thesis Layer

Thesis Classification: Tactical / Setup-Led Secular Thesis: None

As of 2026-06-19, there is no named secular thesis driving this name. This is a tactical, setup-led position. The conviction must be derived strictly from the quality of the structural setup and the underlying business fundamentals, rather than a macroeconomic tailwind or industry-wide secular trend. No macro thesis should be invented to justify the position; the setup itself is the primary driver, and in this instance, the setup has failed.

3. Business Overview

Company: United States Lime & Minerals, Inc. (USLM) Industry: Materials / Lime and Limestone Products Business Model: Manufacturer and supplier of lime and limestone products to a diversified end-market base.

Operational Context (as of 2026-06-19): USLM operates as a manufacturer supplying construction, industrial, environmental, metals, agriculture, and oil & gas sectors.

• Customer Base: Approximately 675 customers accounted for sales in 2025, with no single customer exceeding 10% of sales, indicating a diversified revenue stream (Evidence E11, E10).
• Resource Base: The Love Hollow Quarry holds significant reserves, including 66.8 million tons of proven limestone reserves, estimated to sustain operations for over 80 years at current production levels (Evidence E14).
• Capacity Utilization: In 2025, the company operated at approximately 80% of total annual production capacity (Evidence E13).

Recent Performance & Guidance (Q1 2026):

• Revenue Trend: Revenues decreased 3.7% in Q1 2026 compared to Q1 2025. This was driven by a 3.4% decrease in sales volumes and a 0.2% decrease in average selling prices (Evidence E7).
• Volume Drivers: The volume decline was principally due to decreased demand from construction, oil and gas, and roof shingle customers. This was partially offset by increased demand from steel customers (Evidence E5, E7).
• Profitability: Gross profit decreased due to the aforementioned revenue decline and higher fuel and transportation costs (Evidence E6).
• Management Outlook: Despite the first revenue decline since the 2020 pandemic, management expressed optimism for the balance of the year, specifically regarding demand from construction customers (Evidence E8).

Capital Projects:

• Texas Kiln Project: Management estimates total construction costs at approximately $65 million. As of March 31, 2026, $48.5 million had been incurred ($45.9 million paid in cash), with $5.3 million in open purchase orders (Evidence E2, E3).
• Timeline: Management anticipates the Texas kiln project will start up in the summer of 2026 (Evidence E1).
• Historical Context: Construction on the new vertical kiln began in 2024 (Evidence E12).

4. Archetype and Conviction

Archetype: Quality Compounder (with Cyclical Headwinds) Fit Analysis: USLM fits the "Quality Compounder" archetype due to its long-term resource base (80+ years of reserves), diversified customer base, and history of capital allocation toward capacity expansion (Texas kiln). However, the current operational data reflects a cyclical downturn.

• Fundamental Spine: The business remains structurally sound with strong reserves and a diversified customer mix. The Texas kiln represents a clear growth vector, with management expecting startup in the summer of 2026 (Evidence E1).
• Current Headwinds: The Q1 2026 results show a contraction in volume and price, driven by softness in construction and oil & gas. The company is also facing margin pressure from higher fuel and transportation costs (Evidence E6).
• Conviction Stack:
• *Thesis Strength:* Low (No macro thesis, tactical setup failed).
• *Evidence Quality:* High (Clear SEC filings, specific project costs, and volume data).
• *Setup Readiness:* Invalidated.
• *Rerating Potential:* Dependent on the successful startup of the Texas kiln and a recovery in construction demand, but currently obscured by the setup failure.

5. Invalidating and Strengthening Factors

Invalidating Factors:

• Project Delays: If the Texas kiln startup is delayed beyond the "summer of 2026" window, the growth narrative weakens.
• Margin Compression: Continued increases in fuel and transportation costs without the ability to pass them on to customers would further erode gross profit.

Strengthening Factors:

• Project Completion: Successful startup of the Texas kiln in summer 2026 as guided.
• Demand Recovery: A rebound in construction and oil & gas demand volumes, reversing the Q1 2026 decline.
• Cost Control: Successful mitigation of fuel and transportation cost inflation.

Evidence Gaps:

• Q2 2026 Data: As of June 19, 2026, Q2 2026 results are not yet available. The current view relies on Q1 2026 data and forward-looking statements from April 2026.
• Kiln Startup Confirmation: While management *anticipates* a summer 2026 startup, there is no confirmed operational data yet for the new kiln as of this date.

PRIVATE ANALYST CALL

Judgment: Sell Confidence: high Key risks: Texas kiln startup delay beyond summer 2026; further margin compression from fuel and transportation costs; prolonged cyclical downturn in construction sector. Sizing hint: Position size should be zero; the setup is invalidated. Expected path: Management expects Texas kiln startup in summer 2026; if successful and construction demand recovers, the business fundamentals may support a future re-rating, but the current setup structure is broken. Expected horizon: N/A (Setup invalidated; watch for new setup formation post-recovery).