5 Geopolitical Events with Highest Impact on S&P 500

2. US Bombs Cambodia (4/29/1970)

Initial Impact: -15.3%

30-days Impact: -6.43%

90-days Impact: -4.94%

Average impact: -8.89%

The US bombing of Cambodia was one of the biggest geopolitical events with the highest impact on the S&P 500. The ‘Operation Menu’ was a covert US Strategic Air Command tactical bombing campaign conducted as part of both the Vietnam War and the Cambodian Civil War.