ARM's Stock Doubled: What Happened Since the 2023 IPO?

ARM's stock has risen from its September 2023 IPO price of $51 to $120+.

Why It's Rising

1. All AI chips are based on ARM: Apple's M-series, Nvidia's Grace, and AWS Graviton are all ARM architectures
2. Energy efficiency: Data centers are increasingly focused on power consumption, and ARM's energy efficiency far surpasses x86
3. Edge AI: AI inference on phones, IoT devices, and cars all require ARM
4. Microsoft's push: Windows on ARM is finally becoming viable

ARM vs x86

• Before: ARM = phones, x86 = servers
• Now: ARM is moving up from phones to conquer data centers, penetrating from the edge into servers
• AWS's Graviton processors have already proven ARM's strength on the server side

SoftBank's Big Bet

Masayoshi Son spent $32 billion to acquire ARM in 2016 and was ridiculed for overpaying. Now ARM's market cap exceeds $150 billion, with SoftBank holding about 90% of shares—this investment has earned 4-5x returns.

Risks

• RISC-V (open-source architecture) is on the rise and could divert market share
• x86 won't sit idly by; Intel and AMD are aggressively chasing energy efficiency
• ARM's licensing model is highly profitable but also fragile—if major customers develop their own architectures, that's lost revenue

In the AI chip war, ARM has become the pick-and-shovel seller.

References:

• Arm Newsroom