Shares of Chicago Rivet & Machine Co. Climb Despite Ongoing Volatility Chicago Rivet & Machine Co. stock rose 3.93% to $9.25 on April 17, 2025, though it remains down 32% year-to-date. The stock’s technical outlook is mixed, with recent gains contrasted by a negative short-term trend, low trading volume, and high volatility, suggesting ongoing caution for investors.34