A simple trend based market timing system

Use 3 month EMA and 5 month EMA cross over as signal to enter or exit market.

Monitoring - once every month at last trading day of the month.
Buy - when 3M EMA crosses above 5M EMA
Sell - when 3M EMA crosses below 5M EMA

Since 2000, this system needs only 10 trades, avoids most of losses and captures most of the gains.

According to this system, if you are a long term investor, you should keep investing now until 3M EMA crosses below 5M EMA.