The potential union represents the most significant restructuring in Japan’s electronics sector since 2012. By forming a joint holding company, the retailers intend to leverage increased scale to expand private-label offerings and streamline product lineups. Investors reacted sharply to the news, sending Edion shares up 11% in Tokyo trading, while Yamada saw a 3.5% gain.

Financial performance across the two firms has been divergent. Yamada, currently the sector leader with a market capitalization of $3.7 billion, reported a 45% slump in net profit to 14.8 billion yen during the last fiscal year. Conversely, Edion saw its profit rise 9.5% to 15.5 billion yen. Despite the scale of the proposed deal, the companies may encounter antitrust scrutiny, particularly in western Japan where their physical store networks overlap significantly.