S&P Dow Jones Indices announces that Honeywell Aerospace Inc. will be added to the S&P 500 and the S&P 100 effective Monday, June 29, 2026. The PR Newswire release states that the company is scheduled to be included in both indexes on that date, following the index provider’s standard rebalancing process. The announcement also indicates that S&P Dow Jones Indices will make additional changes to other related benchmarks, including the S&P MidCap 400 and the S&P SmallCap 600, though the provided excerpt focuses primarily on the S&P 500 and S&P 100 additions. Investing.com similarly reports that Honeywell Aerospace is set to join the S&P 500 and S&P 100 on June 29. While the full list of replacements is referenced in the PR Newswire text (“replace…”), the specific companies being removed are not included in the supplied excerpt. Overall, the sources agree on the key timing and the indexes involved: Honeywell Aerospace’s planned entry into the S&P 500 and S&P 100 on June 29, 2026.