CPSH is trading about 5% up in pre-market at $5.97, extending a 12.9% gain from the previous session. - CPS Technologies Corporation (CPSH) was added to the Russell 3000E Index today, June 29, 2026. - This inclusion is a significant event for the company, often leading to increased institutional interest and trading volume. - During the last trading session, the stock price climbed from $5.03 to $5.68.