Protection against market volatility
Your losses hurt you more than your gains help you.

Reverse Compounding

After 10 Year Bull Market Return of 10%
If the Market Crashes 20% in 11th Year
After 10 Year Bull Market Return of 10%
After 10 Year Bull Market Return of 10%
With just 20% down in the 11th Year, the average return of 11 years has come down to 4%