The FTSE 350 Index, managed by FTSE Russell, is a major UK stock market index. It combines the FTSE 100 and FTSE 250 indices, covering the largest 350 companies listed on the London Stock Exchange. This index serves as a benchmark for assessing the performance of the UK’s top companies and is widely used by investors and analysts. https://kalkinemedia.com/uk/ftse-350-nmx