TROY, Mich., June 20, 2024 /PRNewswire/ -- Altair (Nasdaq: ALTR), a global leader in computational intelligence, was added to the S&P MidCap 400 by S&P Dow Jones Indices effective prior to the open of trading on Monday, June 24."Being added to the S&P 400 represents a significant milestone in Altair's journey as a public company," said James R. Scapa, founder and chief executive officer, Altair. "It is a testament to our strong and steady growth and our demonstrated leadership in simulation and design, data ...