stockNYSE: AMTM • 12 Months Updates

Amentum Holdings Inc. (AMTM) 12 Months

Showing Closing Date Range from Oct 20, 2025 to Oct 20, 2026.

Price & Performance Trajectory

Amentum Holdings Inc.NYSE: AMTM

Latest Close
$19.87
-13.16%
12 Months Updates Trajectory
Showing Closing Date Range from Oct 20, 2025 to Oct 20, 2026.
Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesAMTM session performance
✓ Latest Close USD
$19.87
Latest session close
$-3.01vs period start
Period Return % % GAIN
-13.16%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$38.11 / $17.72
Period range envelope
$20.39channel spread
Total Volume SHARES
516.70M
Period turnover
Avg: 2.06M/dLiquidity

Historical Session Ledger

Daily open, high, low, and close prices with volume and period returns.

Historical Quotes & Breakdown(251 dates)
DateClose (USD)Return %HighLowVolume
Oct 20, 2026$19.87+2.00% $19.94$19.421.38M
Oct 19, 2026$19.48-0.20% $19.60$19.271.22M
Oct 16, 2026$19.52+2.25% $19.59$18.972.09M
Oct 15, 2026$19.09+5.30% $19.12$18.231.48M
Oct 14, 2026$18.13-2.11% $18.67$18.001.07M
Oct 13, 2026$18.52-2.11% $18.97$18.471.22M
Oct 12, 2026$18.92-1.92% $19.47$18.911.61M
Oct 09, 2026$19.29+1.69% $19.40$18.961.27M
Oct 08, 2026$18.97+2.49% $18.97$18.103.41M
Oct 07, 2026$18.51-1.39% $18.69$18.091.78M
Oct 06, 2026$18.77+2.91% $18.93$18.361.89M
Oct 05, 2026$18.24+0.55% $18.62$18.022.00M
Oct 02, 2026$18.14-1.84% $18.59$17.722.31M
Sep 30, 2026$18.12-0.17% $18.41$18.061.63M
Sep 29, 2026$18.15-1.84% $18.58$17.892.95M
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