Sigmastocks

Sigmastocks AB, a Gothenburg-based financial technology firm, provides a digital asset management service that focuses on direct stock investments. Founded in July 2014, the company was established with the goal of challenging the traditional fund industry by offering a transparent, low-fee alternative. The founders, Nanna Stranne, Mai Thai, and Carl Lindberg, met while studying at Chalmers University of Technology. The idea for the company emerged from Stranne and Thai's master thesis on entrepreneurship. Stranne, the current CEO, has a background as an elite figure skater, while Thai has experience with startups in the US. Lindberg holds a doctorate in mathematics and has worked as a quantitative analyst.

The firm's core offering is a robo-advisor service that creates and manages personalized stock portfolios. This service uses mathematical algorithms and quantitative analysis, based on factors like cash flow and profit margins, to select stocks from a pool of approximately 900 companies in Sweden, Europe, and the US. It aims to simplify the investment process for individuals, particularly those new to stock investing, by automating portfolio construction and diversification. Clients can customize their portfolios based on risk level, geographic focus, and sustainability preferences, such as excluding specific industries. The business model generates revenue through management and transaction fees. The annual management fee ranges from 0.40% to 0.59%, with an additional 0.25% transaction fee for buying and selling securities.

Sigmastocks caters to both individual savers and businesses, offering automated portfolio management for corporate capital. A key differentiator is its direct investment in individual stocks rather than funds, which it argues eliminates intermediary costs and allows for greater personalization. The platform requires a minimum monthly saving amount of 500 SEK. In December 2024, an agreement was made for Avanza Bank Holding to acquire Sigmastocks for SEK 21.1 million. The acquisition, expected to close in May 2025 pending regulatory approval, will allow Avanza to integrate Sigmastocks' technology to offer digital discretionary portfolio management to its private banking clients.

Keywords: digital asset management, stock portfolio, robo-advisor, quantitative investing, fintech, direct stock investing, low-fee investing, personalized portfolio, automated investing, financial technology, investment management, wealth management, factor investing, corporate capital management, sustainable investing, Avanza acquisition, Swedish fintech, Chalmers ventures, Nanna Stranne, Mai Thai, Carl Lindberg