A small company that builds, and runs, what it makes.

Kiyari G.K. (合同会社きやり) is a Japanese limited liability company headquartered in Tokyo. We design, develop and operate software: our own products, and systems for the clients we work with.

Why we build

Our products start with problems we had ourselves. AI Broker, our largest, began after years of trying to become successful investors with the tools available to retail traders: opinion-based newsletters, social media tips and analyst consensus ratings, most of them impossible to verify after the fact.

Systematic momentum, by contrast, has decades of academic research behind it, from Jegadeesh and Titman (1993) to Asness, Moskowitz and Pedersen (2013). The problem was never the strategy; it was the tooling. So we built the tooling, and then made it available to everyone.

We believe every investor deserves access to the same analytical tools and methods used by quantitative funds. AI Broker publishes daily momentum rankings across U.S., Japanese, European and Asia-Pacific equity markets, released before the market opens so that every ranking stands as a time-stamped record.

How we work

One rule runs through everything we make: data, not hype. Claims should be checkable, results reproducible, and a product should do what it says.

  • Accuracy first. Our data products are built to be correct and reproducible before they are fast.
  • Private by default. Our everyday apps need no account, and what you record in them stays on your device.
  • We run what we ship. Design, engineering, hosting and support sit with the same small team, so the people who answer your question are the people who built the product.

Working with clients

Alongside our own products we take on consulting and development work: architecture reviews, technology choices and delivery plans; web products from first prototype to launch; data pipelines and quantitative research systems; and practical applications of language models, voice and image recognition. Everything we recommend is grounded in systems we operate ourselves.

会社概要

Company profile

Company name商号
Kiyari GK合同会社きやり
Legal form法人形態
Godo kaisha (Japanese limited liability company)合同会社
Headquarters本社所在地
Tokyo, Japan東京都
Business事業内容
Software design, development and operation; technology consulting; quantitative market research publishingソフトウェアの企画・開発・運営、技術コンサルティング、定量的市場調査情報の提供
Products運営サービス
AI Broker, Cellar Book, Gym Bot, Recipe Book, Yuki, Learn Japanese
Contactお問い合わせ
[email protected]
Websiteウェブサイト
kiyari-group.com