Why Leslie's Stock Is Up 9% Monday

Leslie's Inc LESL shares are trading higher by 9.48% to $14.72 Monday afternoon following an announcement that the company will be included in the S&P SmallCap 600 index.

S&P Dow Jones Indices announced during Friday's after-hours session that Leslie's will replace GCP Applied Technologies Inc. in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, September 28.

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According to data from Benzinga Pro, Leslie's has a 52-week high of $24.40 and a 52-week low of $13.01.