Shares of Sherwin-Williams ($SHW) Co. were up more than 4% on Monday afternoon after the company’s inclusion in the Dow Jones Industrial Average, or DJIA, went into effect, lifting retail sentiment. SHW has replaced Dow Inc. in the DJIA, a price-weighted index that includes technology, financial, health care, and consumer stocks. The move signals Sherwin-Williams’ growing importance in the paint and coatings industry, reflecting broader market trends in the housing sector. Another major inclusion in the index was Nvidia Corp. ($NVDA), which has replaced Intel Corp. ($INTC). The move is a valid…