ATI Inc. (ATI:NYSE) closed at $156.88 on October 23, 2026, down 3.06% on the day. The stock trades 35.6% below its 52-week high of $243.57 and 75.9% above its 52-week low of $89.20. Over the past year, it gained 75.8%. ATI Inc. is part of the Basic Industries sector (Steel/Iron Ore).
In 252 trading sessions since October 23, 2025, ATI closed higher on 135 days (54%). Its best day was October 23, 2025 (+8.99%) and its worst was October 22, 2026 (-10.43%). The stock moved 10% or more in a single session 1 time. It opened at least 5% above the previous day's high 4 times.
Allegheny Technologies Incorporated produces and sells specialty materials and components worldwide. The company operates through two segments, High Performance Materials & Components; and Flat-Rolled Products. The High Performance Materials & Components segment provides various high performance materials, including titanium and titanium-based alloys; nickel-and cobalt-based alloys and superalloys; zirconium and related alloys, such as hafnium and niobium, advanced powder alloys, and other specialty materials, in long product forms of ingots, billets, bars, rods, wires, shapes and rectangles, and seamless tubes, plus precision forgings, castings, components, and machined parts. This segment serves aerospace and defense, oil and gas/chemical, hydrocarbon processing, electrical energy, and medical markets. The Flat-Rolled Products segment produces, converts, and distributes stainless steel, nickel-based alloys, specialty alloys, and titanium and titanium-based alloys in various forms, including plate, sheet, engineered strip, and Precision Rolled Strip products, as well as grain-oriented electrical steel. This segment serves oil and gas/chemical and hydrocarbon processing industry, e...
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