Swing Trading

The volatility that exists in the tennis markets can be seen
when the price of a certain player undergoes rapid changes
in value. These sharp shifts are often referred to as a swing.
For example, it is not uncommon to see a major swing from
1.01-1.15 territory to 1.5-2.5 territory before the market
close. swing traders try to capture those movement in prices
rather than scalp a few ticks some of them use profits secured
in advance by scalping this is called a "free option".