After declining in the first quarter of 2025, the FIN Fastener Stock Index rose 9% in the second quarter, besting a 7.9% gain by an index of related industrial stocks.
Specialty alloys supplier Carpenter Technology achieved the highest gain, growing 52.5% in stock value during Q2.
Other FINdex companies recording double-digit gains included Howmet Aerospace (up 43.4%), TriMas (up 22%), Chicago Rivet (up 12.3%), Fastenal (up 11%), and Dorman Products (up 10%).
Park-Ohio lost the highest percentage of stock value during Q2, dropping 17.3%. Other fastener companies recording losses included Stanley Black & Decker (down 11.9%), Simpson Manufacturing (down 1.1%), and Tree Island Steel (down 1.1%).
During the first six months of 2025, the FINdex grew 6.1% compared to 4.9% growth by an index of related industrial stocks.
Howmet Aerospace showed the strongest first-half growth, gaining 70% in share value.
Chicago Rivet recorded the largest decline, falling 22.8%.
