Tokyo Electric Power (9501) outlook revised to Stable by S&P Global Ratings
Tokyo Electric Power Company Holdings (9501) shares rose after S&P Global Ratings upgraded its outlook on the company to 'Stable' and following the restart of Kashiwazaki-Kariwa Nuclear Power Plant Unit 6. The stock is trading at ¥530, up 4.1% from its previous close of ¥509.
S&P revised its outlook from 'Negative' to 'Stable' on May 20. This followed the April 16 restart of Kashiwazaki-Kariwa Unit 6, which is expected to improve power supply stability and profitability, leading to an anticipated annual profit increase of ¥100 billion. Reports of capital alliance negotiations, involving five groups including SoftBank and foreign investors, for a ¥1 trillion investment or delisting, are also being considered a positive factor.
These developments are expected to strengthen the company's financial position and stabilise its business foundation. The restart of nuclear power plants, in particular, significantly impacts the revenue structure of utility companies. Although the share price recently fell to ¥477.50 on June 22, it recovered to ¥530 today.
Why a Ratings Outlook Upgrade Signals a New Chapter for Tokyo Electric Power
Tokyo Electric Power Company Holdings is a cornerstone of Japan's electricity supply. The company generates electricity by operating power plants and earns revenue by supplying power to homes and businesses through its transmission networks. In particular, its diverse energy sources, including nuclear power plants, help establish a stable electricity supply and revenue base.
The primary catalyst behind today's share price movement is S&P Global Ratings' decision on 20 May to upgrade its outlook to "Stable". This positive revision followed the reactivation of Unit 6 at the Kashiwazaki-Kariwa Nuclear Power Plant on 16 April. This is expected to enhance the stability of the power supply and is projected to boost annual profits by ¥100 billion. Reports of capital tie-up negotiations on the scale of ¥1 trillion by SoftBank and others have also heightened investor expectations.
This improved outlook and the anticipation of nuclear plant reactivation have encouraged investors, pushing Tokyo Electric Power Company Holdings' shares up 4.1% from yesterday's close of ¥509, now trading at ¥530.
This is akin to a restaurant that was losing trust, but after thoroughly implementing hygiene management and introducing new menu items, it once again received a high rating from a rating agency and saw customers return. For a power company, the reactivation of a nuclear power plant is precisely that "new menu item" which paves the way for improved earnings and a strengthened financial position, and the market is clearly evaluating this change.

Tokyo Electric Power Company Holdings
Tokyo Electric Power Company Holdings, Incorporated (9501) operates as a diversified utility, generating, transmitting, distributing, and retailing electricity across Japan and internationally. Its power generation capabilities span a broad portfolio, encompassing thermal, nuclear, solar, wind, hydro, and geothermal sources. Beyond electricity, the company is active in gas sales and provides consulting services to other electricity firms. Established in 1951, it adopted its current name in April 2016, having previously been known as Tokyo Electric Power Company, Incorporated. The firm is headquartered in Tokyo, Japan, and functions as a subsidiary of the Nuclear Damage Compensation and Decommissioning Facilitation Corporation.