~30,000 new miners deployed; fleet at 18.3 J/TH
Company: Marathon Digital
The claim, verbatim
MARA deployed approximately 30,000 new miners, with fleet energy efficiency of 18.3 J/TH as of June 2025.
Source (primary)
marathon-digital 8-K exhibit (q225shareholderletter.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-10-09)Live source ↗
Quote: “Deployed approximately 30,000 new miners with current energy efficiency of 18.3 joules per terahash”
How we checked this
Checked on October 13, 2026. The cited source supports part of this claim, but not all of it.
The letter confirms about 30,000 new miners and an 18.3 J/TH efficiency figure as of June 2025. However, the sentence ties that figure to the new miners and does not clearly state it as whole-fleet efficiency.
Confirmed in the source:
- MARA deployed approximately 30,000 new miners
- An energy efficiency figure of 18.3 J/TH is reported as of June 2025
We could not confirm this from the cited source:
- The 18.3 J/TH figure describes the efficiency of MARA's entire fleet rather than the newly deployed miners
That does not mean it is false — only that this source does not establish it, as of the date above. If we find a source that settles it, we will re-check and update this page.
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1507605/000150760525000016/q225shareholderletter.htm) in full (41,389 characters, retrieved October 9, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms marathon-digital 8-K exhibit (q225shareholderletter.htm)
Quote: “Deployed approximately 30,000 new miners with current energy efficiency of 18.3 joules per terahash”