Crypto Miner Stronghold Digital Soars in Trading Debut
The environmentally friendly bitcoin miner that’s using coal waste for energy opened 42% higher than its $19 IPO price.

Stronghold Digital, the bitcoin mining company that converts coal waste into power for its operations, surged in its first day of trading on Wednesday after raising $127 million in its initial public offering (IPO).
The Kennerdell, Pennsylvania-based miner’s IPO was upsized to $19 per share, after previously pricing its IPO at the range of $16 to $18 a share. The shares opened up 42% at $27 on Nasdaq under the ticker “SDIG.” They were recently trading up 65% to $31.37.
Stronghold converts “coal refuse,” a material left over from coal mining, into power used to mine bitcoin at its wholly owned Scrubgrass power plant in Pennsylvania. The company is led by Greg Beard, who is the co-chairman and CEO, and Bill Spence, who is also the co-chairman of the company.
Beard was previously a senior partner and head of natural resources at private equity firm Apollo Global Management. Spence, on the other hand, brings in 40 years of energy-related experience, and formerly owned and operated Coal Valley/Dark Diamond, a coal refuse power generation facility, from 1993 to 2007.
Environmentally beneficial operations
With conversation focused around crypto miners’ ability to use more environmentally friendly power sources, Stronghold is billing its ability to turn coal waste into bitcoin power as an advantage over its peers. “We are committed to generating our energy and managing our assets sustainably, and we believe that we are one of the first vertically integrated crypto asset mining companies with a focus on environmentally beneficial operations,” the company said in its S1 filing.
The miner is essentially taking an age-old traditional mining problem and turning it into a more environmentally friendly business model of the future by mining bitcoin. “Simply put, we employ 21st century crypto mining techniques to remediate the impacts of 19th and 20th century coal mining in some of the most environmentally neglected regions of the United States,” the company said in the filing.
Moreover, Stronghold’s reclamation efforts allow the company to earn tax credits in the form of Coal Refuse Energy and Reclamation Tax Credits, as well as Pennsylvania Tier II Alternative Credits, according to the company’s website.
Lower-cost operations
Stronghold calls itself a “vertically integrated” miner, as its mining rigs are powered by its own power plant, enabling the company to mine bitcoin at a lower cost than its rivals. “Owning our own source of power helps us to produce Bitcoin at one of the lowest prices among our publicly traded peers,” the company said in its filing.
For crypto miners, the biggest operating expense is the cost of power, according to a research note by Jefferies’ analyst Jonathan Petersen. “This is why professional BTC miners spend considerable effort finding locations with the lowest power rates,’’ he wrote.
The net cost of power for Stronghold is about $18 per megawatt-hour (MWh) at its Scrubgrass plant, which is lower than for most other crypto mining companies, according to the company’s data. This helps the company to be profitable when the price of bitcoin is above $3,000, according to a statement Stronghold emailed to CoinDesk. Currently the cryptocurrency is trading at all-time-high of more than $65,000.

“Given that the price of electricity has a significant impact on the ultimate economics and profitability of crypto asset mining, we believe long-term value is enabled primarily by the reduction of power costs and securing environmentally beneficial power generation assets,” Stronghold said in its filing.
Growth strategy
The company plans to grow by acquiring additional environmentally beneficial power generation assets and miners. It is currently in the process of closing on two coal refuse power-generation facilities deals, and intends to use the proceeds of the IPO for acquisitions, according to its filings.
The miner currently operates 3,000 miners with a hashrate capacity of about 185 petahash per second (PH/s). It plans to bring its total hashrate capacity to more than 2,100 PH/s by December and to more than 8,000 PH/s by December 2022.
Stronghold has entered the public market at a very opportune time, as cryptocurrency mining has been very profitable amid the continued rally in the price of bitcoin. In a recent research report, Wall Street firm D.A. Davidson said that the miners are “literally printing money” in the current market.
More For You
Protocol Research: GoPlus Security

What to know:
- As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
- GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
- Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.
More For You
Pye Finance Raises $5M Seed Round Led by Variant and Coinbase Ventures

The platform aims to make locked Solana staking positions tradable via an onchain marketplace.
What to know:
- Pye Finance raised a $5 million seed round led by Variant and Coinbase Ventures, with participation from Solana Labs, Nascent and Gemini.
- The startup is building an onchain marketplace on Solana for time-locked staking positions that can be traded.
- Pye says the product targets Solana’s large pool of staked SOL, worth roughly $75 billion, and aims to give validators and stakers more flexibility over terms and reward flows.












