Morgan Stanley’s Michael Wilson warns oil price spike poses biggest risk to US stocks

Michael Wilson, Morgan Stanley’s chief US equity strategist and CIO, has flagged rising oil prices as the single biggest near-term threat to American equities. The warning, issued on August 24, 2026, comes at a time when crude markets have been anything but calm this year, with prices having topped $114 per barrel back in April before settling down. Wilson’s core argument is asymmetric: stocks tend to get hurt more by rising oil prices than they benefit when crude falls. The 75% threshold Wilson’s analysis, building on commentary he first laid out in March 2026, identifies a specific danger zone. Historically, equities face serious trouble only when oil prices surge 75% to 100% year-over-year. That threshold has been crossed in just five out of 23 geopolitical shock events Wilson’s team studied. As of March 2026, oil prices were actually down roughly 10% on a year-over-year basis, which placed the market comfortably outside the danger zone at that time. Geopolitical tensions, particularly those involving Iran, remain a wildcard. Wilson has acknowledged that these flashpoints have the potential to disrupt energy markets, but his historical review suggests they rarely derail equities...