Market Timing

Asset allocation in which the investment in the equity market is increased if one forecasts that the equity market will outperform T-bills and decrease when market is anticipated to underpreform.

Attempting to buy and sell securities to ride up trends and avoid down trends in the stock, bond, currency, or commodity markets. In theory, this can dramatically increase your rate of return, but practically, it is extremely difficult or impossible to consistently make the right decisions at the right time over the long term.