Madrid Train Bombings — March 11, 2004
Al-Qaeda attacks test post-9/11 market resilience
Coordinated bombings on Madrid commuter trains killed 193 people. European markets fell 2-3% on the day. The S&P 500 declined approximately 1.5% over the following sessions but stood at roughly the same level by March 31 — full recovery within three weeks.
What history says
Editorial commentary written by ALAN analysts. Figures cited below are analyst-authored context — they are not derived from the chart above and may reflect different windows or sources.
Unlike 9/11, the Madrid bombings affected a foreign market. The S&P 500's 1.5% dip and three-week recovery confirmed that non-US terrorism is a volatility event, not a valuation event.
By 2004, investors had internalized the lesson: terrorism creates a sharp shock followed by rapid mean-reversion.
The bombings toppled Spain's government three days later. The political consequences persisted for years; the market consequences lasted days.
Treated with the sobriety the event deserves, the market lesson is narrow: terrorism abroad has historically produced a shallow, short-lived US equity dip because it leaves earnings, credit, and policy untouched. A written plan that classifies such volatility as noise spares you from selling into a recovery measured in weeks.