Russell 1000 Index

One of the indices of the stock market used by investors as benchmarks is the Russell 1000 Index. It reflects the top 1000 American firms by market capitalization and is a subgroup of the wider Russell 3000 Index. The UK-based FTSE Russell Group, which owns and runs the Russell 1000, is a publicly traded company. The Russell 1000 is regarded as a large-cap investing benchmark index.