Buying and Selling Pressure is swayed by what side (Bullish
) the majority of traders are on in regards to a specific security or trading instrument.
When the majority of traders are attempting to buy a specific security or instrument, buying pressure increases.
When the majority of traders are attempting to sell a specific security or instrument, selling pressure increases.
See also: http://investorplace.com/2009/08/cha.../#.VsGsevkrLIU