Investment-Focused Media 'OPENBOOK' Launches 5-Day Weekly YouTube Program Starting June 15

OPENBOOK Inc. (Headquarters: Nakano-ku, Tokyo; President & CEO: Keiko Yamaguchi) will begin broadcasting a 5-day weekly program on its YouTube channel 'OPENBOOK' (https://www.youtube.com/@openbookjp), which specializes in finance and investment, starting Monday, June 15, 2026. Eiji Horiko, representative of Horiko Capital Management, is scheduled to appear on the first Monday episode, and Ryohei Kobayashi, who runs the YouTube channel 'BANK ACADEMY' with over 900,000 subscribers, will appear on the first Tuesday episode. In July, BlackRock Japan, the Japanese subsidiary of the world's largest asset management company BlackRock, is also scheduled to appear as the Tuesday monthly guest.

■ Background of the Program Launch

OPENBOOK was established as a media outlet that delivers the information investors truly need, with the mission of eliminating 'information asymmetry' in the financial industry.

The launch of this weekly program broadcast is the core of the media business that embodies OPENBOOK's mission. In today's era of information overload, while knowledge is required to select high-quality information, the side disseminating information also bears the responsibility of having sufficient 'discernment.' We will provide investment information from diverse perspectives by balancing primary information gathering, dialogue with fund managers, and exchanging opinions with independent investors. Furthermore, by setting a theme for each day of the week, the program is structured so that viewers can easily choose information according to their needs. We aim to be an open media trusted by individual investors by providing unbiased content that gets to the 'essence' in a way that is easy for anyone to understand, completely free of charge.

■ Program Lineup (5 days a week, weekly broadcast)

Monday 'OPENBOOK INSIGHT': A program that delves into intriguing market topics through coverage.
Tuesday 'OPENBOOK TALK': A talk show that gets up close to the real faces of 'insiders' in the financial industry.
Wednesday 'OPENBOOK FUND DIG': An interview program that thoroughly analyzes noteworthy funds.
Thursday 'OPENBOOK TREND': A trend explanation program introducing new funds and rankings.
Saturday 'OPENBOOK BASICS': A program that deepens the basics of investment from the perspective of industry insiders.

■ Featured Guests

[Monday OPENBOOK INSIGHT First Guest (Appearing June 15 & 22)]
Eiji Horiko (President & CEO, Horiko Capital Management LLC)
Theme: 'AI Market - Overheated, or Just the Beginning?'
Mr. Horiko, known as a leading expert in US stock investment, discusses the current market environment and future investment strategies.

[Tuesday OPENBOOK TALK First Guest (Appearing June 16 & 23)]
Ryohei Kobayashi (Operator of YouTube channel 'BANK ACADEMY')
Theme: 'Why Ex-Finance Professionals Go Independent'
Mr. Kobayashi, who left a major financial institution to carve his own path, and Ms. Yamaguchi, get up close to the inside of the industry and the reality of their careers.

■ Comment from Keiko Yamaguchi, President & CEO and Program MC

In an era where many individual investors are unsure 'what to learn and from whom,' OPENBOOK wants to be a place that delivers 'reliable, authentic voices.' Eiji Horiko, Ryohei Kobayashi, and the people at BlackRock who will be appearing this time all have things they must convey to individual investors in Japan from their respective standpoints. We will continue to deliver high-quality content so that OPENBOOK can be the answer the moment you feel 'I want to know the truth.'