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Index Composition

Who is in each major US index today, and what has joined or left it. Every list is a full-replication tracking fund's own disclosed holdings, taken either from an SEC Form N-PORT filing or from the holdings file the fund publishes daily.

S&P 500

S&P Dow Jones Indices
Daily
504 companies
as of 18 Aug 2026
Held by iShares Core S&P 500 ETF (IVV) daily basket on 18 Aug 2026
  • Added Vertiv Holdings Co 31 Mar 2026
  • Added Ciena Corp 31 Mar 2026
  • Added Lumentum Holdings Inc. 31 Mar 2026
8 clearing every entry rule, 141 members that no longer do, scored 19 Aug 2026

S&P MidCap 400

S&P Dow Jones Indices
Daily
400 companies
as of 18 Aug 2026
Held by iShares Core S&P Mid-Cap ETF (IJH) daily basket on 18 Aug 2026
  • Added DigitalOcean Holdings, Inc. 31 May 2026
  • Added SharkNinja, Inc. 31 May 2026
  • Removed Caseys General Stores Inc 31 May 2026
7 clearing every entry rule, 220 members that no longer do, scored 19 Aug 2026

S&P SmallCap 600

S&P Dow Jones Indices
Daily
604 companies
as of 18 Aug 2026
Held by iShares Core S&P Small-Cap ETF (IJR) daily basket on 18 Aug 2026
  • Added Argan Inc 31 May 2026
  • Added Molina Healthcare, Inc. 31 May 2026
  • Added Match Group, Inc. 31 May 2026
41 clearing every entry rule, 196 members that no longer do, scored 19 Aug 2026

Nasdaq-100

Nasdaq
Quarterly
101 companies
as of 31 Mar 2026
Reported by Invesco QQQ Trust, Series 1 (QQQ) for 31 Mar 2026
  • Added Walmart Inc. 31 Mar 2026
  • Removed AstraZeneca PLC 31 Mar 2026
  • Added Western Digital Corp 31 Dec 2025
2 ranked in, 1 ranked out, scored 19 Aug 2026

Russell 1000

FTSE Russell
Daily
1021 companies
as of 18 Aug 2026
Held by iShares Russell 1000 ETF (IWB) daily basket on 18 Aug 2026
  • Added Carnival Corp Ltd. 31 May 2026
  • Added Versigent PLC 31 May 2026
  • Added Central Bancompany, Inc. 31 May 2026
21 ranked in, 1 ranked out, scored 19 Aug 2026

Russell 2000

FTSE Russell
Daily
1964 companies
as of 18 Aug 2026
Held by iShares Russell 2000 ETF (IWM) daily basket on 18 Aug 2026
  • Added Piper Sandler Companies 31 May 2026
  • Added agilon health, inc. 31 May 2026
  • Added Brookfield Business Corp 31 May 2026
101 ranked in, 19 ranked out, scored 19 Aug 2026

Dow Jones Industrial Average

S&P Dow Jones Indices
Quarterly
30 companies
as of 30 Apr 2026
Reported by SPDR Dow Jones Industrial Average ETF Trust (DIA) for 30 Apr 2026
  • Added Sherwin Williams Co 31 Jan 2025
  • Added Nvidia Corp 31 Jan 2025
  • Removed Dow Inc. 31 Jan 2025

These lists are fund holdings, not official index data. Each list is a full-replication tracking fund's own equity holdings, as the fund disclosed them on the date shown, taken either from its SEC Form N-PORT filing or from the holdings file it publishes on its own site. A fund tracks its index closely but is not identical to it, and weights are the fund's, not the index provider's.

Equibles is not affiliated with, endorsed by or sponsored by S&P Dow Jones Indices, FTSE Russell or Nasdaq. Index names are used only to identify which list is being described and remain the trademarks of their respective owners.