Key insights
- A Samsung strike could disrupt the supply of HBM and DRAM crucial for Nvidia and AMD's AI data centers, potentially leading to missed earnings and valuation declines. Apple's iPhone production may also face component shortages and shipping delays due to Samsung's supply disruption of OLED screens and NAND flash memory.

Nvidia and AMD are entirely dependent on South Korean high-bandwidth memory (HBM) and enterprise DRAM to build their AI data centers and GPU servers. The market is already tightly constrained. If Samsung's supply drops by even 3%, the bottleneck will paralyze their shipment schedules. No chips shipped = missed earnings = a 20% valuation haircut overnight
Apple Samsung is the primary supplier for the OLED screens and NAND flash memory used in iPhones. The Impact: Apple relies heavily on "just-in-time" manufacturing, meaning they don't store months of extra parts. A major disruption right before Apple ramps up production for their next-generation iPhone cycle threatens to trigger component shortages and shipping delays.