APP — S&P 500 index addition

AppLovin (APP) entered the S&P 500 at the close on Sep 22, 2025, replacing MarketAxess Holdings. The recorded announcement came 17 calendar days before the effective close, on Sep 5, 2025. The company is classified in Information Technology in this dataset. The same ticker also appears in the tracked Nasdaq-100 addition register. That record alone does not establish a transfer between indexes.

In the 30 calendar days leading into the effective close, APP moved +55.7%. 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 38.8 percentage points above that median. Measured from the effective close, APP returned 1W: +2.8% versus +0.3% for the 28-entry index median; 1M: +10.1% versus +2.2% for the 28-entry index median; 3M: +17.4% versus +5.2% for the 28-entry index median. These figures do not measure movement from the announcement price.

At 1M, it ranks 6th of 28 measured S&P 500 additions and beat the benchmark by 7.6 percentage points. At 3M, it ranks 7th of 28 measured S&P 500 additions and beat the benchmark by 12.5 percentage points. The 1Y window ends on Sep 22, 2026; a result needs a usable close. The other 7 Information Technology additions with a measured 1M return averaged -4.8%. This is historical context, not a projection.