Editing Russell 1000 Index (section)

{{Short description|Stock index}}
{{Infobox index
| name         = Russell 1000 Index
| logo         =
| image        = 
| caption      = 
| foundation   = {{Start date and age|1984|01|01}}
| operator     = [[FTSE Russell]]
| exchanges    = {{ubl|[[New York Stock Exchange|NYSE]]|[[Nasdaq]]|[[Cboe Global Markets|Cboe BZX Exchange]]}}
| constituents = {{approx.|1,000}}
| cap_level    = [[Market capitalization#Market cap terms|Large cap]]
| mcap         = 
| weighting    = [[Capitalization-weighted index|Free-float capitalization-weighted]]
| related      = [[Russell 3000 Index]]
| symbol       = {{UBL |RUI |.RUI |^RUI }}
| homepage     = {{URL|ftse.com/products/indices/russell-us}}
| reuters      =
| bloomberg    = RIY:IND
}}

The '''Russell 1000 Index''' is a U.S. [[stock market index]] that tracks the highest-ranking 1,000 stocks in the [[Russell 3000 Index]], which represent about 93% of the total [[market capitalization]] of that index. 

{{as of|2024|12|31}}, the stocks of the Russell 1000 Index had a [[weighted average]] market capitalization of $1.013 trillion and a [[median]] market capitalization of $15.7 billion. {{as of|2020|05|08}}, components ranged in market capitalization from $1.8 billion to $1.4 trillion.<ref>{{cite web | url=https://www.ftserussell.com/research-insights/russell-reconstitution/market-capitalization-ranges | title=Market capitalization Ranges | publisher=[[FTSE Russell]]}}</ref> 

The index, which was launched on January 1, 1984, is maintained by [[FTSE Russell]], a subsidiary of the United Kingdom-based [[London Stock Exchange Group]]. The [[ticker symbol]] is typically RUI, .RUI or ^RUI. There are several [[exchange-traded funds]] and [[mutual fund]]s that track the index.