CleanSpark (CLSK) vs Riot Platforms (RIOT) Bitcoin mining comparison for 2026 — hash rate, energy strategy, financials, and which is the better investment.
CleanSpark and Riot Platforms are two of the largest publicly traded Bitcoin mining companies in the United States. Both trade on Nasdaq, both hold significant Bitcoin on their balance sheets, and both compete for the same thing: cheap electricity and efficient hash power.
But they have very different approaches. Here's a detailed comparison to help investors understand what they're buying.
Founded: 1987 (reincorporated as Bitcoin miner ~2020)
HQ: Las Vegas, NV
Ticker: CLSK (Nasdaq)
Strategy: Bitcoin-only mining, geographic diversification, efficiency focus
Tagline: "Americas' Bitcoin Miner"
CleanSpark has focused exclusively on Bitcoin mining since pivoting from energy management software. It has built a reputation for operational efficiency, acquiring mining sites and upgrading hardware aggressively.
Founded: 2000 (formerly BioOptio, rebranded to crypto ~2017)
HQ: Castle Rock, CO
Ticker: RIOT (Nasdaq)
Strategy: Large-scale mining, power credits, Texas ERCOT strategy
Notable: Largest Bitcoin mining facility in North America at Rockdale, TX
Riot has pursued a Texas-centric strategy, building the industry's largest single mining site (Rockdale) and leveraging the ERCOT grid's structure to monetize power credits by curtailing mining during peak demand.
| Metric | CleanSpark | Riot Platforms |
|---|---|---|
| Hash rate capacity (installed) | ~40–50 EH/s | ~30–40 EH/s |
| Hash rate target (2025 guidance) | 50+ EH/s | 40+ EH/s |
| Operating sites | 10+ (multi-state) | ~3 (Texas-focused) |
| Miners owned | ~250,000+ ASIC units | ~200,000+ ASIC units |
Figures are approximate based on 2025–2026 reports; verify current filings.
| Metric | CleanSpark | Riot Platforms |
|---|---|---|
| Revenue model | Bitcoin mined | Bitcoin mined + power credits |
| Bitcoin on balance sheet | Large holding | Large holding |
| Sell strategy | Periodic sales | Mix of holding and sales |
| Cost per BTC mined | ~$25,000–$35,000 | ~$20,000–$30,000 (lower due to power credits) |
| Debt level | Moderate | Moderate-higher |
Riot's power credit advantage: In Texas, grid operators pay miners to shut off during peak demand events. Riot has earned tens of millions in annual power curtailment credits, dramatically reducing its effective cost of mining. This is a unique financial feature that benefits large Texas miners during high-demand periods (heat waves, winter storms).
CleanSpark operates mining facilities in:
This diversification reduces exposure to any single grid's reliability or pricing. A Texas grid event that forces Riot to curtail doesn't affect CleanSpark's other facilities.
Riot's primary assets are in Texas:
Texas offers advantages: cheap natural gas power, deregulated ERCOT grid, Bitcoin-friendly legislation, and large land availability. But concentration means exposure to Texas-specific risks (ERCOT volatility, political risk).
Both companies aggressively upgrade ASICs to stay competitive:
Both companies' average fleet efficiency is roughly 20–25 J/TH — significantly better than older S19-generation hardware still in service elsewhere.
Both CLSK and RIOT are highly correlated with Bitcoin price and serve as leveraged Bitcoin proxies:
Investors should understand: These are not pure Bitcoin proxies. They carry operational risk (equipment failure, energy costs, management execution), equity dilution risk (both have raised capital by selling shares), and regulatory risk.
This is not investment advice. But key considerations:
Choose CleanSpark if: You prefer geographic diversification, cleaner energy mix, and simpler revenue model (just Bitcoin mining revenue, no complex power credit dynamics)
Choose Riot if: You believe in the Texas ERCOT strategy, appreciate the power curtailment income as a hedge against low Bitcoin prices, and are comfortable with more geographic concentration
For most investors: Both stocks are highly speculative leveraged Bitcoin bets. For straightforward Bitcoin exposure, buying Bitcoin directly or a spot Bitcoin ETF (IBIT, FBTC) is simpler and avoids operational and dilution risk.
Are CleanSpark and Riot good investments? Both are highly speculative. They provide leveraged Bitcoin exposure but add operational risk. They are not appropriate for risk-averse investors.
Which has a lower cost per Bitcoin mined? Riot generally achieves lower all-in cost per Bitcoin mined due to power curtailment credits. CleanSpark's cost is more predictable but typically somewhat higher.
Do these companies pay dividends? No. Neither CleanSpark nor Riot pay dividends. Revenue is reinvested in hash rate expansion.
Which company mines more Bitcoin? CleanSpark has been growing faster and mines more monthly in most recent periods, but both are significant miners in the global top 10.
Can I buy Bitcoin mining stocks in my IRA? Yes. CLSK and RIOT trade on Nasdaq like regular stocks and can be bought in any brokerage account, including IRAs and 401(k)s that allow stock trading.
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