We often hear market analysts or experienced traders talking about an equity price nearing a certain support or resistance level, each of which is important because it represents a point at which a major price movement is expected to occur. But how do these analysts and professional traders come up with these so-called levels? One of the most common methods is using pivot points, and here we take a look at how to calculate and interpret these technical tools.

How to Calculate Pivot Points
There are several different methods for calculating pivot points, the most common of which is the five-point system. This system uses the previous day's high, low and close, along with two support levels and two resistance levels (totaling five price points) to derive a pivot point. The equations are as follows:

R2 = P + (H - L) = P + (R1 - S1)
R1 = (P x 2) - L
P = (H + L + C) / 3
S1 = (P x 2) - H
S2 = P - (H - L) = P - (R1 - S1)

Here, "S" represents the support levels, "R" the resistance levels and "P" the pivot point. High, low and close are represented by the "H", "L" and "C" respectively. Note that the high, low and close in 24-hour markets (such as forex) are often calculated using New York closing time (4pm EST) on a 24-hour cycle. Limited markets (such as the NYSE) simply use the high, low and close from the day's standard trading hours.

Take a look at the following example of the five-point system, which illustrates a projection of Microsoft's (Nasdaq:MSFT) stock movement. Note the pivot point and the support and resistance levels.

Source: Yahoo! Finance