BCC +7.2%. Aspen Aerogels −34.6%, QXO −42.8%, Capstone Holding −91.5%. Weekly closes, Oct 17, 2025 = 100, log scale.

End-of-day closes (Databento EOD), the last close of each week. The three peers are the largest US-listed companies by market value in BCC’s SEC industry (Wholesale-Lumber & Other Construction Materials) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.