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ATI Inc (ATI) stock

ATINYSESteel Pipe & TubesFiscal year ends December 28
Financials through Q3 FY2026, quarter ended Sep 27, 2026Last filing: 10-Q on Oct 29, 2026Score 12/3081% above fair value
$165.59−9.41 (-5.38%)

Close on Oct 30, 2026Market cap $22.55BP/E 41.4Yield –

Price history

ATI share prices for every week, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$165.59
-5.38% on the day
52-week range
$93.11 – $243.57
-32.0% from the high
Change over 52 weeks
+63.7%
From $101.18 on Oct 30, 2025
Average volume
1.69M
Shares a day, last 90 sessions
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$157.81$184.02$153.51$165.59+5.55%11,771,814
Oct 19, 2026$188.84$190.73$154.24$156.88-15.47%9,769,438
Oct 12, 2026$190.74$193.82$177.01$185.59-3.26%6,054,607
Oct 5, 2026$192.32$196.09$184.49$191.84-0.30%5,423,476
Sep 28, 2026$182.77$194.31$178.26$192.42+3.74%7,654,763
Sep 21, 2026$191.82$193.17$181.51$185.48-3.21%6,733,908
Sep 14, 2026$193.06$197.00$179.59$191.63-3.59%10,869,340
Sep 8, 2026$207.57$210.31$196.60$198.77-5.64%5,280,395
Aug 31, 2026$210.01$212.29$198.46$210.65-0.05%16,729,494
Aug 24, 2026$206.92$217.84$202.25$210.76+1.81%7,302,329
Aug 17, 2026$230.36$232.86$206.30$207.01-9.40%6,318,722
Aug 10, 2026$231.26$243.57$224.00$228.48+0.28%6,618,608
Aug 3, 2026$184.88$236.98$183.54$227.84+21.55%10,423,013
Jul 27, 2026$199.36$200.89$174.77$187.44-5.24%8,182,050
Jul 20, 2026$188.96$204.30$184.12$197.80+6.25%6,525,839
Jul 13, 2026$185.05$195.00$177.00$186.17-0.47%7,799,504
Jul 6, 2026$189.40$194.40$178.71$187.04-0.56%5,696,083
Jun 29, 2026$195.06$200.73$184.50$188.10-4.71%5,484,083
Jun 22, 2026$202.48$205.31$193.29$197.40-1.96%12,366,978
Jun 15, 2026$202.81$202.85$194.71$201.34+1.44%8,120,095
Jun 8, 2026$178.70$203.60$176.54$198.48+11.84%10,773,479
Jun 1, 2026$172.15$183.30$170.79$177.47+1.32%7,383,332
May 26, 2026$165.00$177.27$164.00$175.16+7.93%7,582,232
May 18, 2026$156.53$164.37$146.34$162.29+5.23%8,352,702
May 11, 2026$156.00$167.40$153.03$154.22-2.63%7,125,477
May 4, 2026$154.85$171.11$152.37$158.39+2.02%11,327,027
Apr 27, 2026$154.80$158.31$142.35$155.26+0.65%9,077,046
Apr 20, 2026$162.89$166.61$148.04$154.26-6.32%9,883,896
Apr 13, 2026$162.10$165.28$154.39$164.66+1.51%7,547,564
Apr 6, 2026$147.47$163.30$145.45$162.21+10.63%7,853,129
Mar 30, 2026$142.41$155.41$135.48$146.63+4.42%10,404,173
Mar 23, 2026$146.00$152.12$139.94$140.43-0.97%10,183,780
Mar 16, 2026$144.90$152.00$139.83$141.80-0.12%9,725,106
Mar 9, 2026$150.17$162.54$139.89$141.97-5.41%10,665,656
Mar 2, 2026$163.30$168.14$148.10$150.09-8.25%12,216,846
Feb 23, 2026$157.30$164.26$156.50$163.59+2.97%11,846,102
Feb 17, 2026$143.46$158.99$143.12$158.87+10.38%9,743,315
Feb 9, 2026$134.91$144.50$133.20$143.93+7.76%10,272,116
Feb 2, 2026$119.44$137.00$119.12$133.57+11.03%17,315,049
Jan 26, 2026$123.56$125.90$117.19$120.30-2.63%8,710,216
Jan 20, 2026$124.04$126.01$122.03$123.55-0.64%5,552,116
Jan 12, 2026$123.90$127.11$120.68$124.35+1.68%6,459,761
Jan 5, 2026$120.00$124.92$115.80$122.30+2.60%7,744,452
Dec 29, 2025$116.16$119.43$114.62$119.20+1.92%3,129,175
Dec 22, 2025$114.80$117.48$114.00$116.95+3.24%3,509,128
Dec 15, 2025$109.00$113.57$107.10$113.28+3.96%8,881,829
Dec 8, 2025$99.50$111.22$98.10$108.96+8.52%11,739,780
Dec 1, 2025$99.51$101.26$97.14$100.41-0.39%5,011,280
Nov 24, 2025$96.42$101.81$95.14$100.80+4.49%4,351,594
Nov 17, 2025$99.64$101.51$93.11$96.47-2.92%6,502,075
Nov 10, 2025$98.79$101.11$95.20$99.37+1.76%5,379,165
Nov 3, 2025$99.07$99.92$93.87$97.65-1.33%6,328,349

Seasonality

ATI return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average9.4%11.4%-8.5%3.8%5.1%4.0%1.6%0.0%0.6%-0.9%7.9%2.4%
Months up8 of 107 of 103 of 107 of 107 of 106 of 105 of 104 of 106 of 105 of 107 of 95 of 9
20264.8%36.0%-11.1%6.9%12.7%12.5%-4.9%8.9%-7.2%-12.6%
20253.7%1.9%-10.5%4.5%46.5%8.4%-10.9%0.8%4.9%21.7%1.8%13.8%
2024-10.1%20.3%4.0%16.7%2.7%-9.6%22.1%-5.7%4.7%-21.2%14.2%-8.5%
202321.9%11.7%-2.9%-2.1%-10.5%27.9%7.8%-4.9%-9.2%-8.2%16.4%3.5%
202214.8%40.7%4.3%1.3%1.2%-17.4%9.6%20.2%-11.1%11.8%2.5%-2.1%
20211.4%15.6%7.1%10.4%5.3%-14.9%-1.5%-13.0%-6.9%-3.2%-11.6%11.9%
2020-16.5%-0.9%-50.3%-11.6%15.6%17.4%-14.7%-4.1%4.7%5.6%46.5%24.3%
201925.8%4.5%-10.7%-2.5%-14.1%17.7%-13.6%-9.0%2.2%3.8%9.8%-10.4%
201811.7%-3.9%-8.6%12.2%7.3%-11.9%10.7%-2.8%9.3%-12.4%1.4%-17.1%
201736.4%-11.6%-6.5%2.2%-15.9%10.2%11.3%10.0%14.7%5.4%-9.6%6.0%