NYSE:ATI | Historical Stock Price | ATI INC

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1999-11-29 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$2.63$6.95$18.34$48.42$127.82$337.431999-11-292026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$16.77$24.95929,600
2020-12-30$16.83$25.041,250,700
2020-12-29$16.32$24.281,300,600
2020-12-28$16.42$24.431,059,800
2020-12-24$16.69$24.83609,700
2020-12-23$16.78$24.971,345,600
2020-12-22$16.27$24.211,011,800
2020-12-21$16.16$24.041,546,600
2020-12-18$16.04$23.874,316,700
2020-12-17$16.69$24.831,297,800
2020-12-16$16.46$24.491,217,000
2020-12-15$17.00$25.292,411,500
2020-12-14$16.30$24.252,347,500
2020-12-11$16.54$24.611,160,800
2020-12-10$16.70$24.851,620,500
2020-12-09$16.62$24.731,867,700
2020-12-08$17.14$25.501,693,400
2020-12-07$17.32$25.774,165,700
2020-12-04$16.91$25.164,239,300
2020-12-03$15.49$23.052,432,700
2020-12-02$15.20$22.622,935,500
2020-12-01$14.05$20.901,874,500
2020-11-30$13.49$20.071,491,700
2020-11-27$14.29$21.26485,700
2020-11-25$14.37$21.38999,500
2020-11-24$14.51$21.592,864,100
2020-11-23$14.36$21.374,127,400
2020-11-20$13.98$20.801,758,200
2020-11-19$13.40$19.942,402,700
2020-11-18$13.54$20.152,071,300
2020-11-17$13.56$20.182,440,000
2020-11-16$13.30$19.792,074,800
2020-11-13$12.58$18.722,219,100
2020-11-12$11.62$17.291,430,100
2020-11-11$11.88$17.681,456,300
2020-11-10$12.24$18.212,181,500
2020-11-09$11.63$17.302,991,400
2020-11-06$10.08$15.001,478,200
2020-11-05$10.15$15.102,484,200
2020-11-04$9.42$14.022,259,200
2020-11-03$10.02$14.911,979,400
2020-11-02$9.68$14.402,539,600
2020-10-30$9.21$13.703,044,800
2020-10-29$9.44$14.053,863,100
2020-10-28$8.27$12.302,608,400
2020-10-27$8.87$13.201,715,500
2020-10-26$9.20$13.691,121,100
2020-10-23$9.65$14.361,415,000
2020-10-22$9.45$14.062,051,400
2020-10-21$9.01$13.411,300,900
2020-10-20$9.14$13.601,488,700
2020-10-19$9.41$14.001,403,800
2020-10-16$9.46$14.082,112,600
2020-10-15$9.28$13.811,140,400
2020-10-14$9.12$13.571,304,400
2020-10-13$8.93$13.291,793,400
2020-10-12$9.21$13.701,091,900
2020-10-09$9.40$13.991,200,500
2020-10-08$9.78$14.552,346,900
2020-10-07$9.59$14.271,914,800
2020-10-06$9.14$13.602,561,800
2020-10-05$9.75$14.511,505,400
2020-10-02$9.59$14.272,382,200
2020-10-01$9.22$13.721,937,800
2020-09-30$8.72$12.972,591,100
2020-09-29$8.74$13.003,655,200
2020-09-28$9.29$13.822,006,300
2020-09-25$9.36$13.933,288,900
2020-09-24$9.08$13.513,143,800
2020-09-23$8.97$13.353,276,900
2020-09-22$9.22$13.722,784,800
2020-09-21$9.38$13.963,163,100
2020-09-18$9.59$14.2724,623,700
2020-09-17$9.74$14.492,601,300
2020-09-16$9.65$14.363,243,000
2020-09-15$9.10$13.542,385,100
2020-09-14$8.88$13.211,584,100
2020-09-11$8.69$12.931,725,300
2020-09-10$8.52$12.681,688,600
2020-09-09$8.77$13.052,307,400
2020-09-08$9.02$13.423,124,300
2020-09-04$8.99$13.382,215,500
2020-09-03$8.79$13.082,294,100
2020-09-02$8.72$12.971,500,500
2020-09-01$8.43$12.541,419,400
2020-08-31$8.33$12.392,051,700
2020-08-28$8.65$12.871,111,500
2020-08-27$8.47$12.601,862,100
2020-08-26$8.29$12.331,256,200
2020-08-25$8.64$12.861,143,100
2020-08-24$8.64$12.861,997,500
2020-08-21$8.28$12.322,048,000
2020-08-20$8.63$12.84980,600
2020-08-19$8.65$12.871,405,800
2020-08-18$8.76$13.031,953,500
2020-08-17$9.08$13.511,784,900
2020-08-14$9.19$13.672,643,300
2020-08-13$8.89$13.233,877,900
2020-08-12$9.32$13.871,839,900
2020-08-11$9.60$14.283,108,500
2020-08-10$9.64$14.344,253,800
2020-08-07$9.14$13.602,594,700
2020-08-06$9.15$13.612,375,700
2020-08-05$9.20$13.693,569,200
2020-08-04$9.14$13.605,989,100
2020-08-03$8.88$13.212,642,200
2020-07-31$8.69$12.932,083,000
2020-07-30$9.06$13.481,884,400
2020-07-29$9.17$13.642,281,500
2020-07-28$9.06$13.48908,300
2020-07-27$9.25$13.761,514,000
2020-07-24$9.38$13.961,361,800
2020-07-23$9.46$14.083,086,200
2020-07-22$9.60$14.282,003,000
2020-07-21$9.64$14.342,656,900
2020-07-20$9.47$14.094,795,700
2020-07-17$9.78$14.555,386,400
2020-07-16$10.03$14.923,014,100
2020-07-15$10.81$16.083,380,600
2020-07-14$10.39$15.461,842,800
2020-07-13$10.15$15.102,938,000
2020-07-10$9.67$14.391,579,000
2020-07-09$9.15$13.611,641,000
2020-07-08$9.61$14.301,533,700
2020-07-07$9.84$14.641,458,000
2020-07-06$10.41$15.491,371,300
2020-07-02$10.19$15.161,702,300
2020-07-01$10.01$14.891,810,900
2020-06-30$10.19$15.163,463,800
2020-06-29$10.28$15.302,603,200
2020-06-26$9.39$13.973,490,600
2020-06-25$9.43$14.032,929,100
2020-06-24$9.25$13.762,544,900
2020-06-23$10.09$15.012,273,800
2020-06-22$10.25$15.253,543,200
2020-06-19$9.91$14.746,077,700
2020-06-18$10.48$15.599,382,000
2020-06-17$10.68$15.895,560,100
2020-06-16$10.72$15.952,491,000
2020-06-15$9.92$14.762,846,200
2020-06-12$9.75$14.512,038,900
2020-06-11$9.10$13.543,341,400
2020-06-10$10.44$15.533,140,800
2020-06-09$11.27$16.772,943,800
2020-06-08$11.84$17.623,563,500
2020-06-05$12.13$18.053,992,500
2020-06-04$11.09$16.504,448,100
2020-06-03$10.48$15.593,838,100
2020-06-02$9.32$13.872,308,200
2020-06-01$9.11$13.552,239,400
2020-05-29$8.68$12.912,038,100
2020-05-28$8.75$13.022,393,000
2020-05-27$9.18$13.662,574,300
2020-05-26$8.62$12.832,443,600
2020-05-22$7.85$11.681,118,700
2020-05-21$7.81$11.622,457,500
2020-05-20$7.84$11.662,645,500
2020-05-19$7.69$11.443,822,700
2020-05-18$7.66$11.403,012,800
2020-05-15$6.90$10.271,339,200
2020-05-14$6.87$10.222,518,400
2020-05-13$6.60$9.823,397,700
2020-05-12$6.97$10.372,814,200
2020-05-11$7.50$11.163,408,700
2020-05-08$8.29$12.333,055,900
2020-05-07$7.97$11.862,107,300
2020-05-06$7.48$11.132,298,500
2020-05-05$7.79$11.596,073,700
2020-05-04$7.20$10.712,596,800
2020-05-01$7.18$10.682,523,400
2020-04-30$7.51$11.173,402,300
2020-04-29$8.32$12.383,750,400
2020-04-28$7.51$11.173,149,900
2020-04-27$7.47$11.113,500,800
2020-04-24$6.49$9.664,050,600
2020-04-23$7.00$10.412,271,100
2020-04-22$6.72$10.002,540,800
2020-04-21$6.99$10.402,726,700
2020-04-20$7.19$10.703,534,700
2020-04-17$7.96$11.843,729,900
2020-04-16$7.59$11.292,235,000
2020-04-15$7.49$11.144,209,200
2020-04-14$8.46$12.592,811,300
2020-04-13$8.66$12.882,888,300
2020-04-09$9.83$14.632,382,400
2020-04-08$9.51$14.152,119,700
2020-04-07$8.93$13.292,605,200
2020-04-06$8.87$13.203,045,900
2020-04-03$7.98$11.873,441,000
2020-04-02$7.93$11.801,796,900
2020-04-01$7.80$11.612,800,700
2020-03-31$8.50$12.653,503,100
2020-03-30$8.75$13.023,546,900
2020-03-27$9.01$13.413,765,100
2020-03-26$8.54$12.715,508,800
2020-03-25$7.31$10.886,310,200
2020-03-24$5.60$8.336,815,800
2020-03-23$5.23$7.785,940,400
2020-03-20$6.25$9.304,015,400
2020-03-19$7.53$11.203,253,000
2020-03-18$7.00$10.413,122,000
2020-03-17$8.58$12.774,043,400
2020-03-16$8.01$11.923,946,900
2020-03-13$10.00$14.883,341,800
2020-03-12$10.00$14.882,864,000
2020-03-11$11.59$17.243,510,300
2020-03-10$13.66$20.323,173,200
2020-03-09$13.27$19.743,083,300
2020-03-06$15.49$23.052,229,500
2020-03-05$16.27$24.211,569,300
2020-03-04$17.07$25.402,117,100
2020-03-03$16.90$25.141,796,500
2020-03-02$16.93$25.192,268,400
2020-02-28$17.09$25.432,731,600
2020-02-27$17.72$26.362,066,500
2020-02-26$18.20$27.082,049,800
2020-02-25$18.59$27.661,491,500
2020-02-24$19.45$28.941,128,300
2020-02-21$20.41$30.371,210,900
2020-02-20$20.26$30.141,098,100
2020-02-19$20.36$30.291,195,700
2020-02-18$19.87$29.561,511,500
2020-02-14$20.01$29.771,168,900
2020-02-13$20.03$29.801,707,000
2020-02-12$20.15$29.981,127,600
2020-02-11$19.57$29.12888,200
2020-02-10$19.57$29.12739,600
2020-02-07$19.50$29.011,386,300
2020-02-06$19.62$29.191,509,000
2020-02-05$19.40$28.862,410,000
2020-02-04$19.78$29.434,362,900
2020-02-03$17.09$25.431,871,700
2020-01-31$17.25$25.671,273,500
2020-01-30$17.81$26.50903,200
2020-01-29$17.53$26.081,293,200
2020-01-28$17.43$25.931,682,200
2020-01-27$17.35$25.811,909,300
2020-01-24$18.16$27.022,284,000
2020-01-23$18.55$27.603,129,000
2020-01-22$17.68$26.313,106,200
2020-01-21$17.89$26.621,540,600
2020-01-17$18.67$27.781,471,500
2020-01-16$18.78$27.941,417,800
2020-01-15$18.88$28.092,410,100
2020-01-14$19.06$28.361,587,200
2020-01-13$18.48$27.502,782,900
2020-01-10$18.18$27.053,000,900
2020-01-09$19.11$28.432,179,400
2020-01-08$19.68$29.281,875,100
2020-01-07$20.32$30.231,072,400
2020-01-06$20.10$29.911,176,200
2020-01-03$20.51$30.521,445,500
2020-01-02$20.60$30.651,531,500