Compare · D vs FISN

D vs FISN

Side-by-side comparison of Dominion Energy Inc. (D) and Deep Fission Inc. (FISN): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both D and FISN operate in Electric Utilities: Central (Utilities), so they compete in similar markets.
  • D is the larger of the two at $60.33B, about 553.6x FISN ($109.0M).
  • Over the past year, D is up 11.4% and FISN is down 87.8% - D leads by 99.2 points.
  • D has been more active in the news (11 items in the past 4 weeks vs 2 for FISN).
  • D has more recent analyst coverage (25 ratings vs 0 for FISN).
PerformanceD+0.33%FISN-87.80%
2026-06-18+0.00%2026-11-06
MetricDFISN
Company
Dominion Energy Inc.
Deep Fission Inc.
Price
-
-
Market cap
$60.33B
$109.0M
1M return
+11.08%
-60.62%
1Y return
+11.37%
-87.80%
Industry
Electric Utilities: Central
Electric Utilities: Central
Exchange
NYSE
NASDAQ
IPO
2026
News (4w)
11
2
Recent ratings
25
0
D

Dominion Energy Inc.

Dominion Energy, Inc. produces and distributes energy. The company operates through four segments: Dominion Energy Virginia, Gas Distribution, Dominion Energy South Carolina, and Contracted Assets. The Dominion Energy Virginia segment generates, transmits, and distributes regulated electricity to residential, commercial, industrial, and governmental customers in Virginia and North Carolina. The Gas Distribution segment engages in the regulated natural gas gathering, transportation, distribution, and sales activities, as well as distributes nonregulated renewable natural gas. This segment serves residential, commercial, and industrial customers. The Dominion Energy South Carolina segment generates, transmits, and distributes electricity and natural gas to residential, commercial, and industrial customers in South Carolina. The Contracted Assets segment is involved in the energy marketing and price risk activities. As of December 31, 2020, the company's portfolio of assets included approximately 30.2 gigawatt of electric generating capacity; 10,500 miles of electric transmission lines; 85,600 miles of electric distribution lines; and 94,200 miles of gas distribution lines. It serves approximately 7 million customers. The company sells electricity at wholesale prices to rural electric cooperatives and municipalities, as well as into wholesale electricity markets. The company was formerly known as Dominion Resources, Inc. and changed its name to Dominion Energy, Inc. in May 2017. Dominion Energy, Inc. was incorporated in 1983 and is headquartered in Richmond, Virginia.

FISN

Deep Fission Inc.

Deep Fission is developing technology that places a small modular pressurized water reactor in a borehole approximately one mile underground. The Company's Gravity Nuclear Reactor approach combines established pressurized water reactor technology with a novel underground deployment model designed to simplify construction, enhance safety, and support scalable commercial deployment. Deep Fission is focused on delivering reliable, low-carbon baseload power to meet growing electricity demand from utilities, industrial customers, and data centers. The Company is currently advancing the development of its first reactor project in Parsons, Kansas, and was selected for the U.S. Department of Energy's Reactor Pilot Program.