The IPO market in Sweden has been on the rise and has had years of record in number of companies that has gone public. The phenomenon of underpricing has been analyzed for years in different markets as well as in different time periods. This thesis analyzes the factors affecting underpricing during the years 2017 to 2022 on the markets: Nasdaq Stockholm, First North Stockholm and Spotlight. Additionally, an investigation of the underpricing between the industries have been done by using several control variables to determine the differences in underpricing between the industries. Various tests use a sample size of 366 companies to determine if the variables have a statistical significance. The results show that the average IPO during the time period is underpriced by approximately 9%.

In recent decades, many investors have abandoned hopes of achieving above market returns through active management, and consigned themselves to passive investing in the form of market capitalization based portfolios. Using Swedish stock exchange data from 2002-2016, this thesis investigates if there is a way to harmonize the strengths of active management, yielding potential above market returns, and passive index investing, implying lower fees and transparency. Based on observations from 275 companies, analysed through market model regressions, the results suggest that fundamentally invested value and quality portfolios create an alpha of 1-2 percent quarterly relative the market capitalization benchmark portfolio. Moreover, the results constitute basis for performing real investments, as they take into consideration the transaction costs implied by portfolio turnover. Furthermore, the findings of greater risk-adjusted returns through fundamentally weighted portfolios stand in opposition to the efficient market hypothesis.