CleanSpark, Inc. (CLSK) Company Overview

CleanSpark, Inc. is a Nasdaq-listed digital infrastructure company. Its current earnings engine is large-scale Bitcoin mining; its emerging second platform is long-duration data-center leasing for artificial-intelligence and high-performance-computing workloads. The official investor overview presents the company as an owner and operator of power-intensive compute infrastructure across the United States.

The company is becoming a two-engine infrastructure platform

At March 31, 2026, all reported revenue still came from Bitcoin mining, and the company reported no external data-center revenue. That makes CleanSpark a transition story: mining funds the platform today, while the July 2026 Sandersville lease introduces a future contracted-revenue model.

Its physical portfolio spans operating data centers in Georgia, Tennessee, Mississippi, and Wyoming, with development properties in South Dakota and Texas as of March 31, 2026. Customers are indirect in mining—Bitcoin network participants and mining pools—but direct in AI infrastructure, where tenant credit quality and lease terms become central.

Bitcoin mining converts electricity and specialized computing into bitcoin block rewards and transaction fees. CleanSpark earns a proportional share through mining pools and records mined bitcoin at fair value as revenue. Power is the dominant direct cash cost; miner depreciation, network difficulty, fleet efficiency, Bitcoin price, and treasury policy determine the gap between revenue, accounting profit, and cash generation.

The present engine is variable-price production

The Sandersville lease introduces contracted infrastructure economics

The July 2026 Sandersville announcement describes a 20-year triple-net lease with annual escalators, two five-year extension options, 175 MW of critical IT load, and initial contracted revenue of approximately $6.6 billion. Management estimated average annual net operating income of about $330 million at nearly 100% cumulative NOI contribution margin, before corporate costs, financing, taxes, and landlord construction spending.

Fiscal Q2 2026 shows weaker mining revenue and large fair-value losses

For the quarter ended March 31, 2026, CleanSpark reported revenue of $136.4 million, down 24.9% from $181.7 million a year earlier. Direct cost of revenue was $81.7 million. Depreciation and amortization reached $115.9 million, while a $224.1 million Bitcoin fair-value loss drove operating loss to $345.7 million and net loss to $378.3 million, or $1.52 per basic share. The fiscal Q2 2026 results release and Form 10-Q show why mining earnings must be separated into operating economics and mark-to-market effects.

June 2026 operations show scale, efficiency, and treasury accumulation

The June 2026 operating update reported 614 bitcoin produced, 50 EH/s of operational hashrate, 42.6 EH/s average hashrate, 16.07 J/Th fleet efficiency, and 225,137 deployed miners. Holdings rose to 13,924 bitcoin. CleanSpark sold 429 bitcoin through spot and call transactions, while 1,719 bitcoin were associated with collateral or receivables.

CleanSpark has changed economic identity twice: from energy technology to Bitcoin mining, then toward a broader compute-infrastructure model. The relevant history is the sequence of asset and operating decisions that produced its present power portfolio.

1. 2016
   CleanSpark adopted its current name around an energy-software and microgrid strategy, establishing expertise in power controls and distributed energy.
2. December 2020
   CleanSpark agreed to buy ATL Data Centers, entering Bitcoin mining and shifting from selling energy technology toward owning compute infrastructure.
3. 2022
   Legacy energy operations were discontinued as the company concentrated capital on mining; Washington and Sandersville sites expanded owned power and operating capacity.
4. October 2024
   The GRIID acquisition added Tennessee operations, personnel, and a development pipeline in the TVA service territory.
5. June 2025
   CleanSpark reached 50 EH/s through self-operated infrastructure, demonstrating national-scale site integration and fleet management.
6. October 2025-February 2026
   Austin County and Brazoria County acquisitions added Texas land and planned power for next-generation AI and HPC campuses.
7. July 2026
   The 175 MW Sandersville lease introduced long-term contracted infrastructure revenue and placed the Texas portfolio under tenant exclusivity.

The strategic thread is control of the critical path

CleanSpark's data-center platform description emphasizes site control, energization, engineering, and operations. Those capabilities form the common thread: the company seeks to control power, land, interconnection, and execution rather than merely own computing equipment.

Scale and low-cost power improve mining resilience

In March 2026, CleanSpark's average hashrate represented about 4.66% of global network hashrate. Scale spreads corporate overhead, supports miner and electrical-equipment purchasing, and gives the company more operating data across sites. Its disclosed energy expense was $81.65 million, or $0.052 per kWh, in fiscal Q2 2026.

Power and land create strategic optionality

Bitcoin mining equipment can be curtailed, upgraded, or redeployed as power availability and economics change. That flexibility lets CleanSpark monetize a site before a longer-duration data-center build is complete, although mining equipment and AI infrastructure require different designs and customer commitments.

The moat is execution-based rather than permanent

CleanSpark has no legal monopoly on power, miners, or data centers. MARA, Riot Platforms, IREN, Core Scientific, and Cipher Mining also compete for power, equipment, financing, and AI tenants. CleanSpark's advantage therefore depends on repeatable site acquisition, low-cost energization, fleet operations, tenant execution, and disciplined financing.

Mining revenue rises with Bitcoin price and CleanSpark's share of global hashrate, but falls when network difficulty grows faster than its own computing power. Power cost and fleet efficiency determine cash cost, while periodic halvings reduce the block subsidy. Because miners depreciate rapidly, EBITDA can overstate the economics if sustaining hardware replacement is ignored.

Which operating KPIs matter most?

The treasury can amplify both liquidity and reported volatility

At March 31, 2026, CleanSpark held about 11,920 bitcoin plus 1,641 bitcoin receivable from collateralized loans. A 10% Bitcoin price change would have moved fair value by roughly $104 million, according to the 10-Q sensitivity. The treasury supports liquidity and financing, but it also makes earnings, collateral value, and asset value highly correlated with Bitcoin.

Liquidity is substantial, but the balance sheet has become more leveraged

At March 31, 2026, CleanSpark reported $1.10 billion of current assets, $133.1 million of current liabilities, and $966.0 million of working capital. It also had approximately $1.77 billion of zero-coupon convertible notes and $400 million of unused credit lines. Liquidity is large, but so are mining capex, treasury volatility, and the future Sandersville funding requirement.

FY2025 profit quality requires careful interpretation

For FY2025, CleanSpark reported $766.3 million of revenue, $318.9 million of operating income, and $364.5 million of net income. Yet the FY2025 results included a $425.6 million Bitcoin fair-value gain and a $92.2 million collateral-related gain. The FY2025 Form 10-K therefore supports separating recurring mining margin from asset remeasurement.

CleanSpark has a broad institutional common-stock base, but preferred shares give legacy holders additional influence. The 2026 proxy statement disclosed BlackRock at 17.06% of common stock, Vanguard at 10.05%, and the Susquehanna reporting group at 5.41%. Current directors and executive officers as a group owned 2.08% as of January 9, 2026.

Preferred shares create outsized voting influence

Each common share carried one vote; each Series A preferred share carried 45 votes. The 1.75 million preferred shares therefore represented 78.75 million votes. Against 255.75 million outstanding common shares at the record date, the preferred class represented about 23.5% of combined voting power.

Board structure offers independence, but leadership is concentrated

The board had five members, four classified as independent under Nasdaq standards. CEO Matt Schultz also served as Chairman, with Larry McNeill as lead independent director. That structure makes independent oversight especially important during project financing, construction, and potential dilution.

The opportunity is to monetize the same megawatt twice

Mining can monetize power while sites are developed; long-term leases can later convert selected campuses into contracted infrastructure. The Sandersville tenant also received exclusivity over CleanSpark's 718-acre Texas portfolio, with up to 885 MW of secured and planned capacity. A definitive Texas lease would turn a single-project relationship into a multi-campus platform.

The risk set is now broader than Bitcoin price

The July 2026 Form 8-K states that missed milestones may produce rent abatements or termination. Sandersville also introduces construction, procurement, utility, financing, and tenant-concentration risk. Mining remains exposed to Bitcoin price, network difficulty, future halvings, curtailment, hardware obsolescence, and power cost. Separately, the 10-Q disclosed a disputed potential U.S. tariff liability of up to approximately $130 million on previously purchased miners, with no provision recorded at March 31, 2026.

A single-stage DCF is a poor fit because CleanSpark now combines assets with different lives and risks. Mining is cyclical and equipment-intensive; the Bitcoin treasury is marked to market; Sandersville is a long-duration infrastructure development; and Texas remains option value until exclusivity becomes a definitive lease.

A sum-of-the-parts framework is more informative

For students, CleanSpark is a case study in strategic asset migration: energy technology became Bitcoin mining, then a platform for contracted AI infrastructure. For investors, the tension is whether valuable power and land can be converted into durable lease cash flow without excessive construction risk, leverage, or dilution.