ATI ×2.3. NWPX Infrastructure +88.2%, Huadi International −51.8%, Luda Technology −60.6%. 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 ATI’s SEC industry (Steel Pipe & Tubes) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.