%0 Journal Article %T Comparative analysis of the effectiveness of artificial intelligence chat interfaces in forming an investment portfolio based on stock market data %A Golovan', S.A. %A Teten'kina, V.V. %K artificial intelligence, chat interfaces, Deep Seek, Giga Chat, ChatGPT, investment portfolio, stock market, Moscow Exchange, derivatives, comparative analysis, portfolio theory, hedging, futures, options, diversification, risk management, digital transformation, financial technology, algorithmic trading, investment efficiency %J JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT %D 2026 %N 0 %P 8 %I ITBO University