stockNASDAQ: ARM • 28 Days Updates

Arm Holdings plc (ARM)

Showing Closing Date Range from Sep 11 to Oct 9, 2026.

Arm Holdings (ARM) designs and licenses CPU architectures used across virtually all global smartphones and data center chips, trading on Nasdaq. Shares last closed at $266.28, moving -13.40% over the past week and +0.56% across 28 days. The stock is -10.94% over 3 months, +68.98% over 6 months and +56.03% over 12 months. Chipmakers INTC (Intel) (+1.71%), NVDA (NVIDIA) (+5.03%), MU (Micron Technology) (+5.51%), AMD (Advanced Micro Devices) (+17.82%) and MRVL (Marvell Technology) (+16.59%) moved over the same 28-day period.
Price & Performance Trajectory

Arm Holdings plcNASDAQ: ARM

Latest Close
$266.28
+0.56%
28 Days Updates Trajectory
Showing Closing Date Range from Sep 11 to Oct 9, 2026.
Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesARM session performance
✓ Latest Close USD
$266.28
Latest session close
+$1.49vs period start
Period Return % % GAIN
+0.56%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$336.98 / $238.03
Period range envelope
$98.95channel spread
Total Volume SHARES
112.90M
Period turnover
Avg: 5.64M/dLiquidity

Historical Session Ledger

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

Historical Quotes & Breakdown(20 dates)
DateClose (USD)Return %HighLowVolume
Oct 09, 2026$266.28-3.27% $281.50$265.674.23M
Oct 08, 2026$275.29-6.48% $286.73$270.276.06M
Oct 07, 2026$294.37-2.71% $300.60$290.573.11M
Oct 06, 2026$302.56-0.11% $308.50$301.073.39M
Oct 05, 2026$302.90-1.49% $311.00$299.802.91M
Oct 02, 2026$307.49+5.18% $318.36$303.125.90M
Oct 01, 2026$292.34+0.93% $297.14$287.503.28M
Sep 30, 2026$289.66-1.37% $295.99$283.504.17M
Sep 29, 2026$293.67+3.65% $301.00$287.066.02M
Sep 28, 2026$283.33-8.70% $307.17$279.209.10M
Sep 25, 2026$310.32+1.30% $325.48$310.086.99M
Sep 23, 2026$332.56-0.19% $336.98$324.566.96M
Sep 22, 2026$333.20+3.19% $334.66$318.697.41M
Sep 21, 2026$322.90+17.16% $324.16$293.0813.01M
Sep 18, 2026$275.61+4.04% $275.78$261.666.96M
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