| Russell Top 50 Mega Cap | |
| Operator: | FTSE Russell |
| Exchanges: | New York Stock Exchange |
| Symbol: | ^RU50 |
| Constituents: | 50 |
| Cap Level: | Large cap |
| Weighting: | Capitalization-weighted |
| Related: | Russell 3000 Index |
The Russell Top 50 Index also known as the Russell Top 50 Mega Cap is a stock market index that measures the performance of the largest companies in the Russell 3000 Index. It includes approximately 50 of the largest securities based on a combination of their market cap and current index membership and represents approximately 40% of the total market capitalization of the Russell 3000.
The index, which was launched on January 1, 2005, is maintained by FTSE Russell, a subsidiary of the London Stock Exchange Group. Its ticker symbol is ^RU50.
Prior to January 27, 2016, the index was tracked by an exchange-traded fund, the Guggenheim Russell Top 50 Mega Cap ETF .[1] The ETF switched to the S&P 500 Top 50 Index.
(as of October 31, 2020)[2]