No. 1 Selling Monthly Money Magazine 'Diamond ZAi' Launches Digital Subscription!

Diamond, Inc. (Shibuya-ku, Tokyo) will launch a subscription service for its monthly money magazine, 'Diamond ZAi,' as 'Diamond ZAi (Digital Edition),' starting July 1, 2026.

Click here for the Diamond ZAi (Digital Edition) page.

What is 'Diamond ZAi'?

'Diamond ZAi' is a brand of comprehensive money information website and magazine operated by Diamond, Inc.

Since its first issue in 2000, the magazine has been loved by readers from students to retirees as 'a comprehensive money magazine for all generations, covering both offense and defense.'

With an editorial policy of 'packed with manga, illustrations, and diagrams on every page! Yet, the content is serious,' it covers a wide range of 'articles related to money,' from the basics of money and investment know-how to market forecasts and stock recommendations by rising analysts. In addition to stock investment information, it focuses on articles about long-term asset building using investment trusts. It also thoroughly covers information you want to know, such as how to use NISA, retirement money, inheritance, and saving. It is currently the best-selling monthly money magazine in Japan (*).

'Diamond ZAi (Digital Edition),' brought to you by 'Diamond ZAi,' is a comprehensive digital subscription-based money site that directly solves each individual's 'money worries.'

No knowledge is required! You can easily understand topics that concern you, such as Japanese stocks, US stocks, investment trusts, savings accounts, NISA, iDeCo, Furusato Nozei, saving, retirement funds, and housing loans, with abundant manga and diagrams.

Increase! Save!! Earn!!! Acquire lifelong money knowledge with ZAi

'Diamond ZAi (Digital Edition)' offers know-how in various forms for individual investors of all ages to learn about money in a fun and easy way.

• Steadily acquire money knowledge

ZAi's strength lies in making difficult 'money talk' easy to understand with manga and diagrams, yet keeping the content serious!

• Trustworthy because it's from money professionals

In its 27th year since its founding, it boasts exceptional trust as the best-selling monthly money magazine in Japan. It is a reliable information site from money professionals. Stock analysts are also on staff, providing the latest stock information.

• Find truly profitable stocks!

Packed with hints for making money through stocks and investment trusts! ZAi's unique data, including rankings and ratings for Japanese stocks, US stocks, and investment trusts, as well as the latest theoretical stock prices, are a must-see. You can find stocks and investment trusts worth buying.

Exclusive content only available here! 'Diamond ZAi (Digital Edition)' - 6 Benefits for Paid Members

1 Master the basics of asset building with the 'Introductory Series'!

Thoroughly explains the essential money basics that cannot be avoided, such as NISA, stock investment, and retirement funds. With ZAi's unique abundant diagrams, beginners can absorb knowledge while having fun.

2 Make investing more accessible! Over 100 ZAi exclusive videos available for viewing

A superb lineup of over 100 videos. All learning videos about money, including interviews with 'Orikun' (people who have built assets of 100 million yen), stock investment introductions, and explanations of noteworthy recommended stocks, are available for unlimited viewing.

3 Read the latest issue of the magazine and best-selling introductory books!

The latest issue of 'Diamond ZAi,' released on the 21st of every month, is published in full. Additionally, you can freely browse ZAi's popular books that have received overwhelming support from individual investors.

4 View dividend and distribution rankings!

Features exclusive data such as rankings of 'dividend capacity' and 'stocks that do not reduce dividends,' and 'true yields of monthly distribution investment trusts.'

5 Instantly know which stocks & investment trusts to buy!

ZAi rates 500 Japanese stocks, 150 US stocks, and approximately 220 NISA-eligible investment trusts! Furthermore, information on stocks to invest in right now is delivered daily on weekdays.

6 Know the latest theoretical stock price for all listed stocks!

For over 3,700 listed domestic stocks, its unique theoretical stock price is updated weekly. You can instantly judge whether stocks are undervalued or overvalued in the market.

Subscription Service Launch Campaign: 73% Off for the First Year

To commemorate the launch of the service, a campaign is underway offering contracts from 1,320 yen (tax included) per month, a 73% discount from the regular price for the first year.

Gold Plan Monthly: Regular price 4,950 yen/month (tax included) offered at 1,320 yen (tax included).

Gold Plan Annually: Regular price 49,500 yen/year (tax included) offered at 13,200 yen (tax included).

*Discount prices will be applied to payments made during the first year of service (July 1, 2026 - June 30, 2027). If the contract continues, it will automatically renew and be charged at the regular price from July 1, 2027, after the first year.

Profile of 'Diamond ZAi' Editor-in-Chief: Kumiko Kumagai

Joined in 2000 at the time of 'Diamond ZAi's' launch. Became deputy editor-in-chief in 2015 and editor-in-chief in 2024.

In addition to 'Diamond ZAi,' she has been involved in the separate volume 'Diamond 'Stock' Databook,' which features a harsh diagnosis of popular stocks that has become a standard feature, and the money magazine for seniors 'Diamond money!' (merged with ZAi). She has also been in charge of books such as '50 Traps & 50 Truths of Investment Trusts Created by Japan's Best-Selling Monthly Money Magazine ZAi' and 'Introduction to New NISA Created by Japan's Best-Selling Monthly Money Magazine ZAi.'

Certified Analyst by the Certified Public Analysts Association of Japan.

'Diamond ZAi (Digital Edition)' Service Overview

Gold Plan Monthly: Regular price 4,950 yen/month (tax included) offered at 1,320 yen (tax included) for the first year.

Gold Plan Annually: Regular price 49,500 yen/year (tax included) offered at 13,200 yen (tax included) for the first year.

Service Start Date: July 1, 2026

Click here for the Diamond ZAi (Digital Edition) page.

(*) No. 1 Selling [Monthly] Money Magazine

Magazines > Monthly Magazines > Business Magazines Annual Cumulative Sales April 2025 - March 2026 (Source: CDP CANTERA)

*Images and photos in this release may only be used for reporting purposes related to this service.