What is Russell 1000 Index?

The Russell 1000 Index, is a stock market index tracking 1,000 largest stocks in the Russell 3000 Index. It is maintained by FTSE Russell, a subsidiary of the London Stock Exchange Group.

The value of Russell 1000 index is calculated using the capitalization-weighted method, which can be described as:

Index Value = (1/Divisor) ∑ (Stock Weight) * (Stock Price)

where: 
  Index Value = 100.00, originally in 1984; 3,357.35, now in 2025 
  Stock Weight = (Market Cap) / ∑ (Market Cap)

The Russell 1000 index was launched on Jan 1, 1984, with a fixed value of 100, by adjusting the divisor.

On Feb 14, 2025, the index value reached 3,357.35, representing approximately 93% of the US equity market. Example stocks in the index are:

Stock Name          Ticker  Exchange
------------------  ------  --------
Apple               AAPL    Nasdaq
Nvidia              NVDA    Nasdaq
Microsoft           MSFT    Nasdaq
Amazon              AMZN    Nasdaq
Meta                META    Nasdaq
Tesla               TSLA    Nasdaq
Alphabet (Class A)  GOOGL   Nasdaq
Broadcom            AVGO    Nasdaq
Alphabet (Class C)  GOOG    Nasdaq
Berkshire Hathaway  BRK.B   NYSE
...

For the current value of the Russell 1000 Index, see the ^RUI quote chart on Yahoo Finance.

⇒ Chicago Options: ^RUI - Russell 1000

⇐ Chicago Options: ^RUA - Russell 3000

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