CleanSpark (CLSK)
Efficient Bitcoin miner with growing power portfolio, emerging AI/HPC colocation strategy.
1. Core Product / Service
CleanSpark is a Bitcoin mining company that operates some of the most energy-efficient mining fleets in the industry. The company owns and operates data center infrastructure primarily in Georgia, New York, and Texas, with total power capacity approaching ~1 GW.
CleanSpark's AI/HPC pivot is in early-to-mid stages. The company has signaled interest in converting portions of its mining infrastructure to AI compute hosting. Unlike core-scientific which has a signed anchor tenant, CleanSpark is still exploring potential partnerships and evaluating site suitability for GPU workloads.
The company's key differentiator is operational efficiency: CleanSpark has historically managed the lowest all-in mining costs among public Bitcoin miners. This cost discipline could translate to competitive AI hosting pricing — if the company can execute the operational shift from ASICs to GPUs. CleanSpark also benefits from its diversified site locations, including access to hydroelectric and nuclear power in various regions.
CleanSpark offers (potential):
- AI colocation hosting — GPU-ready space and power
- Behind-the-meter compute — direct power off-take from renewable sources
- Modular data center deployment — leveraging the company's rapid-deployment approach
2. Target Users & Pain Points
- Mid-tier AI companies needing regional GPU hosting near population centers
- AI inference providers seeking distributed compute locations (CleanSpark's Georgia sites are near the Southeastern US population base)
- Enterprise AI teams wanting predictable, low-cost compute
Pain point solved: CleanSpark's existing sites already have power, cooling, and connectivity. The company can offer AI hosting at lower capital intensity than greenfield data center construction because the infrastructure is partially in place.
3. Competitive Landscape
| Company | AI Pivot Stage | Power Capacity | Efficiency Advantage |
|---|---|---|---|
| core-scientific | Active (deal signed) | ~1.2 GW | Medium |
| iris-energy | Active (GPU deployment) | ~500 MW | High |
| riot-platforms | Exploratory | ~1.6 GW | Low (Whinstone is older) |
| CleanSpark | Emerging | ~1 GW | Highest (lowest mining cost) |
| bitfarms-keel | Restructuring | ~500 MW | Medium |
4. Unique Observations
CleanSpark's efficiency-first culture makes it an interesting AI pivot candidate — but efficiency in Bitcoin mining (running ASICs at optimal hash rates) does not directly translate to efficiency in AI colocation (managing GPU thermal profiles, network latency, and SLAs). The company will need to build entirely new operational capabilities.
The 13F Q1 2026 filing confirms: Aschenbrenner's fund holds LONG $104.47M in CLSK (12,276,139 shares, 0.76% of book) with a +ADD 648.36% QoQ — the biggest percentage add of the quarter. From 1.64M to 12.28M shares (added 10.64M). Implied entry ~$8.51/share. This massive conviction signal marks CLSK as the highest-signal miner-pivot bet in the portfolio. CleanSpark may be the least-discussed miner in the AI pivot narrative, which could mean asymmetric upside if the company executes.
CleanSpark's Georgia locations are strategically interesting for AI inference: Georgia has relatively low power costs, good fiber connectivity, and proximity to the growing Atlanta-Austin tech corridor. Inference workloads need to be closer to users than training workloads, making CleanSpark's distributed site footprint potentially more valuable than centralized Texas facilities.
5. Financials / Funding
- Market cap: ~$2-4B (correlated with Bitcoin)
- Revenue: Predominantly Bitcoin mining (~95%+)
- AI revenue: Negligible as of early 2026
- Stock: Trades on NASDAQ under CLSK
- Operating cost: Industry-lowest mining cost per Bitcoin (~$20-25K/BTC at scale)
- Capital position: Strong balance sheet; funded through mining profits and at-the-market equity offerings
- 13F Q1 2026: LONG $104.47M, 12,276,139 shares, 0.76% of book, +ADD 648.36% QoQ (from 1.64M to 12.28M shares, added 10.64M, implied ~$8.51/share). Biggest percentage add across all miner positions.
6. People & Relationships
- Zach Bradford — CEO (led the company through rapid expansion and efficiency optimization)
- Gary Vecchiarelli — CFO
- Key Partners: Local utilities in Georgia, New York, and Texas; ASIC manufacturers (MicroBT, Bitmain)
- Competitors/Peers: core-scientific, iris-energy, riot-platforms, bitfarms-keel, hive-digital