CleanSpark Releases September 2026 Operational Update

The financing adds secured debt due 2031, while CleanSpark says its Sandersville project is fully funded through completion.

Rhea-AI Summary

CleanSpark (CLSK) released its September 2026 operational update, reporting 529 bitcoin produced and the closing of previously announced secured financing.

Subsidiary CSDC Finance I closed $2.276 billion of 7.875% senior secured notes due 2031. CleanSpark said Sandersville is fully funded through completion; its lease is expected to generate approximately $6.6 billion in contracted revenue over the initial term.

Unaudited September figures included 36.0 EH/s average operating hashrate, 50 EH/s operational hashrate, 16.07 J/Th peak fleet efficiency and 199,745 deployed miners. Contracted power was 1.8 GW, with 808 MW utilized. Bitcoin holdings fell from 13,703 on August 31 to 13,530 on September 30; 3,475 were posted as collateral or held as receivables related to derivatives. Sales comprised 2 bitcoin at spot and 700 through call exercises. Monthly updates will end as reporting shifts to quarterly.

4 points · 2 major

MixediHow this balance works

How this balance works

Rhea-AI gives every point it takes from this document a weight. Minor counts 1, Moderate 3 and Major 9, so one Major point outweighs several Minor ones. The bar adds up the weights on each side, and when neither side holds more than 65% of the total the balance reads Mixed.

It reads the document as published, with the same rules for every company, and it does not look at what the market expected or at how the stock traded, so a point can be objectively good on a day the stock falls.

Rhea-AI Sentiment measures something else, the tone of the wording.

How the balance worksHow Sentiment works

1 major · 4 points

Hollow bars mark forward-looking points. How the balance works

Positive

• Major pointClosed $2.276 billion in financing to fund the data center build-out. 83% of market cap
• Major point. Forward-looking: it has not happened yet and may not happen.Data center lease is expected to generate approximately $6.6 billion in contracted revenue over the initial term. 2.4× market cap
• Moderate pointSeptember bitcoin production totaled 529, bringing CY2026 production to 5,432.
• Minor pointSandersville project is fully funded through completion, CleanSpark said.

Negative

• Major pointFinancing adds $2.276 billion of senior secured debt at 7.875%, due 2031. 83% of market cap
• Moderate pointBitcoin holdings declined to 13,530 on September 30 from 13,703 on August 31.
• Minor pointBitcoin collateral or derivative-related receivables totaled 3,475 of September 30 holdings.
• Minor point. Forward-looking: it has not happened yet and may not happen.Monthly operational updates will be discontinued as CleanSpark transitions to quarterly reporting.

Key Figures

Senior secured notes principal: $2.276 billion Notes interest rate: 7.875% Bitcoin produced: 529 bitcoin +5 more

Senior secured notes principal

$2.276 billion

Closed financing

Notes interest rate

7.875%

Senior secured notes due 2031

Bitcoin produced

529 bitcoin

September 2026

Calendar-year bitcoin production

5,432 bitcoin

CY2026

Operational hashrate

50 EH/s

September 2026

Average operating hashrate

36.0 EH/s

September 2026

Power under contract

1.8 GW

Power portfolio

Utilized power

808 MW

Power portfolio

Key Terms

senior secured notes, call exercises, derivative transactions

3 terms

senior secured notes financial

"closed on its $2.276 billion aggregate principal amount of 7.875% senior secured notes"

Senior secured notes are loans a company sells to investors that are backed by specific assets and given first priority for repayment if the company defaults. Because they have a claim on collateral and are paid before other debts, they usually offer lower risk and correspondingly lower interest than unsecured debt; investors use them to judge how safe repayment and recovery of principal might be, like holding a mortgage instead of an unsecured credit card balance.

call exercises financial

"Bitcoin sold pursuant to call exercises | (700)"

Call exercises occur when the holder of a call option chooses to buy the underlying shares at the agreed strike price, similar to using a voucher to purchase an item at a fixed discount. For investors, call exercises matter because they can change the number of shares available, dilute existing ownership if new shares are issued, and create cash inflows for the seller or company, all of which can influence stock price and earnings per share.

derivative transactions financial

"3,475 was posted as collateral or as receivable and all related to derivative transactions"

Derivative transactions are contracts whose value depends on the price or performance of something else—like stocks, bonds, currencies, interest rates or commodities. Think of them as insurance or bets about a future price: investors use them to protect against losses, lock in prices, or try to amplify returns, but they can also magnify losses, create cash demands and expose a firm to the risk that the other party won’t meet its obligation, so they can materially affect a company’s financial stability and volatility.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Closed previously announced $2.276 billion of senior secured notes

LAS VEGAS, Oct. 9, 2026 /PRNewswire/ -- CleanSpark, Inc. (Nasdaq: CLSK) ("CleanSpark" or the "Company"), a market-leading data center developer, today released its unaudited Bitcoin mining and operations update for the month ended September 30, 2026.

As previously announced in our press release dated September 25, 2026, CleanSpark's wholly owned subsidiary, CSDC Finance I, LLC, closed on its $2.276 billion aggregate principal amount of 7.875% senior secured notes due 2031, funding our data center build-out for the lease that is expected to generate approximately $6.6 billion dollar of contracted revenue over the initial term.

"With non-dilutive bond financing now in place, our Sandersville project is fully funded through completion. This represents an important milestone for CleanSpark and reflects the confidence of the institutional capital markets in our strategy and long-term opportunity," said CEO and Chairman Matt Schultz. "In the meantime, we are continuing the commercial process across our entire portfolio and delivering continuous monetization of our contracted power through bitcoin mining. The demand for power and land, with the certainty to build, remains relentless, and I am excited to be kicking off our new fiscal year from a position of strength."

With our continued business evolution progressing, CleanSpark will transition to standard quarterly reporting consistent with peers in the energy and data center sectors, and monthly operational updates will be discontinued.

September 2026 Bitcoin Mining Highlights (Unaudited)

Production Metrics
Bitcoin produced	529
Peak single day bitcoin production	18.99
Average daily bitcoin production	17.64
CY2026 bitcoin produced	5,432

Fleet Metrics
Operational Hashrate1	50 EH/s
Average operating hashrate	36.0 EH/s
Peak efficiency of deployed fleet	16.07 J/Th
Deployed fleet as of September 30	199,745

Power Portfolio Metrics
GW under contract2	1.8 GW
Utilized MW3	808 MW

Bitcoin Treasury Activity
Total bitcoin holdings as of August 31	13,703
Bitcoin produced	529
Bitcoin sold at spot	(2)
Bitcoin sold pursuant to call exercises	(700)
Total bitcoin holdings as of September 304	13,530
Average price per bitcoin sold5	$72,928

1Operational Hashrate refers to the highest hashrate historically achieved concurrently by all installed and functional miners that were: properly racked and configured, supported by energized infrastructure, and capable of actively contributing to our mining pool or directly to the Bitcoin network.

2GW under contract includes all contracted power capacity for wholly owned or leased sites and excludes any other non-binding arrangements.

3Utilized MW represents the maximum megawatts used concurrently in support of the fleet's Operational Hashrate.

4As of September 30, 2026, CleanSpark's Bitcoin holdings were 13,530 in total, of which 3,475 was posted as collateral or as receivable and all related to derivative transactions.

5Average price calculated as net proceeds from bitcoin sold plus net premiums generated divided by total bitcoin sold.

About CleanSpark
CleanSpark (Nasdaq: CLSK), is a market-leading data center developer with a proven track record of success. We control a portfolio of more than 1.8 GW of power, land, and data centers across the United States powered by globally competitive energy prices. Sitting at the intersection of Bitcoin, energy, operational excellence, and capital stewardship, we optimize our infrastructure to deliver superior returns to our shareholders. Monetizing low-cost, high reliability energy by producing a global emerging critical resource – compute – positions us to prosper in an ever-changing world. 

Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. In this press release, forward-looking statements include, but may not be limited to, statements regarding the Company's expectations, beliefs, plans, intentions, and strategies. In some cases, you can identify forward-looking statements by terms such as "may," "will," "should," "expects," "plans," "anticipates," "could," "intends," "targets," "projects," "contemplates," "believes," "estimates," "forecasts," "predicts," "potential" or "continue" or the negative of these terms or other similar expressions. The forward-looking statements are subject to a variety of known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to: scaling towards becoming a multi-gigawatt AI and digital infrastructure platform; the success and performance of the Company's non-bitcoin data center activities and expansion into non-bitcoin infrastructure;  completion of construction, regulatory approvals, and electrical power availability to achieve anticipated growth; the success and performance of the digital asset management and derivatives trading activities; the success of our digital currency mining activities; bitcoin volatility; the dependency on utility rate structures and government incentive programs;  and other risks described in the Company's prior press releases and in its filings with the Securities and Exchange Commission (SEC), including under the heading "Risk Factors" in those filings. Forward-looking statements contained herein are made only as to the date of this press release, and we assume no obligation to update or revise any forward-looking statements as a result of any new information, changed circumstances or future events or otherwise, except as required by applicable law.  

Investor Relations Contact  
Kyle Sourk
702-989-7693
ir@cleanspark.com 

Media Contact 
Eleni Stylianou
702-989-7694
pr@cleanspark.com

View original content to download multimedia:https://www.prnewswire.com/news-releases/cleanspark-releases-september-2026-operational-update-302903249.html

SOURCE CleanSpark, Inc.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What financing did CleanSpark close for its data center build-out?

CleanSpark subsidiary CSDC Finance I closed $2.276 billion in aggregate principal amount of 7.875% senior secured notes due 2031. The financing funds the data center build-out for a lease expected to generate approximately $6.6 billion in contracted revenue over its initial term.

How much bitcoin did CleanSpark produce in September 2026?

CleanSpark produced 529 bitcoin in September 2026, based on unaudited operational figures. Calendar-year 2026 production totaled 5,432 bitcoin.

What were CleanSpark's daily bitcoin production figures for September 2026?

CleanSpark's unaudited September figures showed average daily production of 17.64 bitcoin and peak single-day production of 18.99 bitcoin.

What average price did CleanSpark report for bitcoin sold in September 2026?

CleanSpark reported an average price of $72,928 per bitcoin sold. That metric divides net proceeds from bitcoin sales plus net premiums generated by total bitcoin sold, rather than measuring sale proceeds alone.

How does CleanSpark define operational hashrate in its September 2026 update?

CleanSpark defines operational hashrate, a measure of mining computing power, as the highest rate historically achieved concurrently by installed and functional miners. Those miners must be properly configured, supported by energized infrastructure and capable of contributing to its mining pool or directly to the Bitcoin network.