Tech & Science
Martin Weber, Finance Researcher: His Advice to Avoid Common Investment Mistakes
Martin Weber, a finance researcher who has studied investor behavior for decades, shares practical investment advice in a Handelsblatt interview published on July 31, 2026. He recommends a beginner portfolio of two-thirds stocks and one-third bonds, and warns against relying solely on a MSCI World ETF. Weber emphasizes the need for broad diversification across nearly all investors and advises choosing fee-only financial advisers over traditional bank advisers for greater independence.