Liner launches AI finance research tool for retail investors

Liner has launched Liner Finance, an AI research agent for public company and market research. The service covers US and Korean listed companies, as well as exchange-traded funds.

The product is built into Liner's web and mobile platform and combines public filings, company announcements, market data and recent news into structured reports. It is aimed at users who would otherwise need to search across multiple sources to build a picture of a business.

Liner is positioning the service around accessibility for individuals without access to professional research teams. The platform organises information on share prices, historical performance, analyst consensus targets, recent developments and financial metrics for each company it covers.

It also links news coverage with corporate disclosures and broader market activity to highlight events that may be affecting performance. The service also surfaces macroeconomic indicators, industry developments and sector news relevant to a business under review.

Information is refreshed about every 20 minutes rather than streamed continuously in real time. The design is intended to steer users towards longer-form research rather than short-term trading reactions.

Research model

Liner said the product is built around retrieval-augmented generation, a method that grounds responses in source material rather than relying only on a model's internal training. In practice, the tool synthesises information from public documents and news while maintaining visibility into the underlying sources.

The launch extends Liner's broader push into AI tools for research, writing and knowledge discovery. Finance is one of the more sensitive use cases for AI products, and providers have generally tried to distinguish research support from investment advice as regulators and users scrutinise how such tools present information.

Liner said the product does not provide personalised investment advice, recommend securities or facilitate transactions. Instead, it is framed as an information and research tool for users conducting their own analysis.

Guru Mode

One feature, called Guru Mode, lets users review companies through the lens of well-known investment philosophies. Liner said it draws on publicly available interviews, books, shareholder letters and educational materials to show how investors including Warren Buffett and Peter Lynch have historically assessed businesses.

Liner described the feature as educational rather than predictive. It does not attempt to forecast what those investors would do now or suggest a particular investment course.

The approach may appeal to retail investors seeking frameworks for analysing businesses without having to read large volumes of source material unaided. It also reflects a broader trend in consumer AI products towards packaging domain knowledge into guided workflows rather than leaving users with only open-ended prompts.

The service is now available globally within the Liner platform. Launch coverage spans US and Korean public companies and ETFs, giving the company a footprint across two active equity markets with significant retail investor participation.

Luke Kim, Chief Executive Officer at Liner, set out the company's rationale for the launch.

"The ability to understand financial information should not be limited to professional investors. Liner Finance helps organize complex public information into a format that makes company research more accessible, allowing more people to better understand the businesses and markets they are studying. Our goal is to reduce the time it takes to understand a company by bringing together relevant public information in one place. We believe AI can help people navigate complexity, compare multiple perspectives and conduct more informed research while leaving the ultimate decisions entirely in their hands," said Kim.