Massachusetts Financial Services Company has reduced its voting rights in IG Group Holdings PLC to 4.99% from 5.017%, effective December 9, 2024. This minor stake adjustment may influence the company's decision-making and indicates a potential shift in investment strategy.IG Group Holdings, a UK-based financial services firm, specializes in online trading for retail and institutional clients, providing access to various financial markets. The company currently has a market cap of £3.41B and a year-to-date price performance of 32.61%.