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Compare · AMKR vs ARM

AMKR vs ARM

Side-by-side comparison of Amkor Technology Inc. (AMKR) and Arm Holdings plc (ARM): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both AMKR and ARM operate in Semiconductors (Technology), so they compete in similar markets.
  • ARM is the larger of the two at $364.90B, about 22.7x AMKR ($16.10B).
  • Over the past year, AMKR is up 227.0% and ARM is up 147.5% - AMKR leads by 79.5 points.
  • ARM has been more active in the news (28 items in the past 4 weeks vs 7 for AMKR).
  • ARM has more recent analyst coverage (25 ratings vs 17 for AMKR).
PerformanceAMKR+226.97%ARM+147.47%
2025-06-09+0.00%2026-06-05
MetricAMKRARM
Company
Amkor Technology Inc.
Arm Holdings plc
Price
$64.61-12.45%
$343.04-12.79%
Market cap
$16.10B
$364.90B
1M return
-15.93%
+44.54%
1Y return
+226.97%
+147.47%
Industry
Semiconductors
Semiconductors
Exchange
NASDAQ
NASDAQ
IPO
1998
2023
News (4w)
7
28
Recent ratings
17
25
AMKR

Amkor Technology Inc.

Amkor Technology, Inc. provides outsourced semiconductor packaging and test services in the United States, Japan, Europe, the Middle East, Africa, and rest of the Asia Pacific. It offers turnkey packaging and test services, including semiconductor wafer bump, wafer probe, wafer back-grind, package design, packaging, and test and drop shipment services. The company also provides flip chip scale package products for use in smartphones, tablets, and other mobile consumer electronic devices; flip chip stacked chip scale packages that are used to stack memory, and as applications processors in mobile devices; and flip chip ball grid array products for various networking, storage, computing, and consumer applications. In addition, it offers wafer-level CSP packages that are used in power management, transceivers, sensors, wireless charging, codecs, and specialty silicon; wafer-level fan-out packages for use in ICs; and silicon wafer integrated fan-out technology, which replaces a laminate substrate with a thinner structure. Further, the company provides lead frame packages that are used in electronic devices for low to medium pin count applications; substrate-based wirebond packages, which are used to connect a die to a substrate; micro-electro-mechanical systems (MEMS) packages that are miniaturized mechanical and electro-mechanical devices; and advanced system-in-package modules, which are used in radio frequency and front end modules, basebands, connectivity, fingerprint sensors, display and touch screen drivers, sensors and MEMS, and NAND memory and solid state drives. It primarily serves integrated device manufacturers, fabless semiconductor companies, original equipment manufacturers, and contract foundries. Amkor Technology, Inc. was founded in 1968 and is headquartered in Tempe, Arizona.

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