 NEW YORK, Aug. 24, 2021 PRNewswire -- SP Dow Jones Indices will make the following changes to the SP 500, SP MidCap 400, and SP SmallCap 600 effective prior to the opening of trading on Monday, August 30: SP MidCap 400 constituent Bio-Techne Corp. NASD:TECH will replace Maxim Integrated Products Inc. NASD:MXIM in the SP 500, SP SmallCap 600 constituent Saia Inc. NASD:SAIA will replace Bio-Techne in the SP MidCap 400, and BioLife Solutions Inc. NASD:BLFS will replace Saia in the SP SmallCap 600. SP 500 constituent Analog Devices Inc. NASD:ADI is acquiring Maxim Integrated Products in a deal pending final conditions. 