DeepSeek's leaner AI model drags Samsung, SK hynix shares down over 4%

Shares of Samsung Electronics and SK hynix each fell more than 4% before paring losses, following news of a leaner AI model from DeepSeek. Investors worry that more efficient models could curb demand for AI memory.

• Samsung and SK hynix dropped more than 4%
• Trigger was DeepSeek's leaner model
• Fears of weaker AI memory demand
• Shares later trimmed losses