Meritz Securities launches AI-powered global investment platform MOUM

Meritz Securities officially launched MOUM, a new financial platform that combines share trading, investment information, a global investment community and AI services, on Tuesday.

The platform lets investors monitor real-time market sentiment from both domestic and overseas participants, use a finance-specialized AI to analyze corporate earnings, news and research notes, and execute trades — all without leaving the app.

MOUM is the product of roughly 18 months of development at Meritz Securities. It builds on the share-trading functions of a conventional mobile trading system (MTS) by layering in investment information, a global community and AI services.

Users can access core features without logging in, and a social login grants associate membership with access to community functions.

Linking Meritz Securities' online-only comprehensive investment account, Super365, upgrades users to full membership, giving them share-trading capability alongside portfolio data and AI analysis on a single screen.

An investor holding Nvidia shares, for example, can use MOUM to track the company's earnings releases, AI semiconductor demand and new product news, while also checking how investors at home and abroad are reacting.

AI summarizes key earnings figures, major news and research notes, and users can dig deeper through an AI chat function — asking, for instance, how the data center business performed in the latest quarter — before placing a trade on the same platform.

MOUM's core differentiator is a global investment community that lets domestic and overseas investors communicate directly, cutting across language and geographic barriers.

Meritz Securities has integrated the community feeds of Stocktwits, a US social investment platform, and Webull, an international financial technology company, into MOUM's own stock-specific community.

Through this integration, domestic investors can check the views and market reactions of overseas investors in real time and get a faster read on global investment trends and new investment ideas.

The platform also strengthens investment information services powered by a finance-specialized AI. Customers who link their accounts can see news, community posts and alerts related to their holdings and watchlist stocks — information previously scattered across multiple sources — consolidated in one place alongside AI analysis.

The AI quickly distills the key points from corporate earnings reports, news and research notes, and users can explore further through the AI chat function.

MOUM is built as a cloud-based open platform. Meritz Securities worked with Amazon Web Services to maximize the scalability and flexibility of its cloud environment, and that technical achievement earned it a spot in AWS's global best-practice showcase "Win-Wires" — a first for a domestic financial firm.

Lee Jang-wook, executive vice president and head of the Inno Biz division that led the platform's development, said MOUM was designed to go beyond the standard trading app offered by conventional brokerages. "Our direction is not simply to add one more AI feature, but to evolve into a next-generation open platform where diverse services are organically connected," he said.

Meritz Securities CEO Jang Won-jae said the firm had long built expertise and competitiveness in corporate finance but lacked sufficient touchpoints to deliver that value effectively to retail investors. "MOUM is the platform built to close that gap," he said. "Our goal is to make the financial expertise and diverse investment information the company has accumulated more accessible and convenient for retail investors."

MOUM will be the first domestic brokerage platform to exclusively feature Vega, the finance-specialized AI engine developed by Webull. Webull, a global online brokerage platform, built Vega as a large language model-based investment engine.