🔴 Sandisk is trading 3.7% down today as OpenAI’s training pause revives memory-chip concerns

Sandisk is trading 3.7% down at $1,711.97 on September 28, 2026, as OpenAI’s pause renewed concerns about AI development and memory-chip demand.

• OpenAI paused training and some evaluation of its most capable models for a safeguards review; Micron earnings added caution.
• Higher yields, rising oil and profit-taking after the AI rally weighed on risk sentiment; major U.S. indexes fell less than 0.5%.
• No Sandisk-specific announcement was identified; memory-sector concerns appear more relevant than broad-index weakness.