S&P 500 register

UAL — S&P 500 index addition

United Airlines Holdings joined the S&P 500 at the close on Oct 1, 2024, replacing Bio-Techne.

Register
S&P 500
Date announced
27 SEPT 2024
Date effective
01 OCT 2024
Replaces
Bio-Techne
Sector
Industrials

Carried to each window

Measured from the effective-date close, and against the S&P 500

UAL returns at each window after inclusion, absolute and relative to the index
WindowRun-up 30d1W1M3M6M1Y
UAL+22.2%+9.1%+34.5%+81.8%+41.8%+74.5%
vs S&P 500Not yet elapsed+9.2%+34.9%+79.1%+43.7%+58.0%

Losses are entered in red. A blank cell means that window hasn't elapsed yet.

Analysis

Recorded outcomes for UAL and comparable S&P 500 additions

United Airlines Holdings (UAL) entered the S&P 500 at the close on Oct 1, 2024, replacing Bio-Techne. The recorded announcement came 4 calendar days before the effective close, on Sep 27, 2024. The company is classified in Industrials in this dataset.

In the 30 calendar days leading into the effective close, UAL moved +22.2%. The median 30-day run-up among the 25 S&P 500 entries with a recorded announcement and prices for that interval was +16.9%; this stock was 5.3 percentage points above that median. Measured from the effective close, UAL returned 1W: +9.1% versus +0.3% for the 28-entry index median; 1M: +34.5% versus +2.2% for the 28-entry index median; 3M: +81.8% versus +5.2% for the 28-entry index median; 1Y: +74.5% versus +11.6% for the 24-entry index median. These figures do not measure movement from the announcement price.

At 1M, it ranks 1st of 28 measured S&P 500 additions and beat the benchmark by 34.9 percentage points. At 3M, it ranks 2nd of 28 measured S&P 500 additions and beat the benchmark by 79.1 percentage points. At 1Y, it ranks 3rd of 24 measured S&P 500 additions and beat the benchmark by 58.0 percentage points. The other 3 Industrials additions with a measured 1M return averaged -0.4%. This is historical context, not a projection.

Around the effective date

Indexed performance, effective close = 100

Prices last updated: unknown

Other entries in the S&P 500 register

Same sector first, then the most recent

  • EMEEMCOR GroupSep 22, 2025
  • AMTMAmentum HoldingsNov 15, 2024
  • LIILennox InternationalOct 1, 2024
  • HOODRobinhood MarketsSep 22, 2025
  • APPAppLovinSep 22, 2025
  • IBKRInteractive Brokers GroupAug 28, 2025

See every entry in the S&P 500 additions log or the index review calendar.