Stock Of The Day: New S&P 600 Firm, Old S&P 500 Parent Near Buy Points

U.S. stocks pushed higher with the S&P 500 and Nasdaq at new highs, fueling broad-market strength that lifted smaller names. The story highlights Atmus Filtration Technologies’ inclusion in the S&P 600 (effective April 9), which helped the stock jump and reclaim its 50‑day moving average. Atmus traded around $63.93 (up 0.8% intraday) and surged 9.7% the prior week amid the index inclusion and broader market rally. The piece notes potential upside from a historical ~8.8% boost after index inclusion and cites Atmus’ acquisition of Koch Filter ($450M) and analyst expectations for ~7% EPS growth and ~13% revenue growth this year. The market context (earnings from large caps like Apple and Alphabet) is presented as supportive of the rally, reinforcing a bullish backdrop for index constituents and some smaller stocks benefiting from index reweighting.