BandWidth depicts how wide the Bollinger Bands are as a function of the moving average. The formula is (upper band - lower band) / middle band. BandWidth is most useful for identifying the Squeeze, and the beginning and ending of trends.

In addition to the BandWidth line, two reference lines are drawn to give a sense of where the current BandWidth stands in relation to its history.
The upper line represents the highest bandwidth in past 150 bars (bulge).
The lower line represents the lowest bandwidth in past 150 bars (squeeze).

CCI is a sophisticated overbought/oversold tool that uses volatility as its gauge. A 20-bar period is the default.

CMO is Tushar Chande's attempt to capture Pure Momentum. You may specify the lookback period; 14 is the default.

The most basic overbought/oversold tool. It expresses how far prices are from an n-bar average as a percent of the average. A 50-bar average is the default.

Created by Wells Wilder, it parses the price structure into + and - components, DMI+ and DMI-. However, the most interesting feature is a derivative of the DMI indices, called ADX. ADX indicates whether the data is trending or not. Values above 18 are considered to indicate trends while values below 18 are associated with trading range markets. You may select the lookback period. A 14-bar calculation period is most common.

George Lane's Stochastics, an indicator that depicts where we are in the price range of the past n-bars. You may select the fast or slow version, the number of bars in the basic calculation and the length of the smoothing for %d. Fast or Slow sets whether %k is presented as a raw calculation (fast) or a 3-bar smoothed value (slow). The second parameter is the lookback period for %k. The third parameter is the smoothing period for %d. Fast, 10, and 3 is the most common set of parameters. Slow, 10, and 3 is also popular.

Gerald Appel created MACD, a variation on a departure chart with an average added that acts as a signal line.
The MACD line is the difference between a 12-bar and a 26-bar exponential average.
The signal line is a 9-bar moving average of the MACD.
The histogram is the difference between the MACD and the signal.

Momentum is the percentage change of price over a specified time period. Stock traders usually prefer this to Rate of Change. You may choose the number of periods. 12 is the default.

See RSI below. Plotting 50-bar, 2.1 standard deviation Bollinger Bands on RSI allows the analyst to dispense with fixed levels and focus on indicator action. The upper band serves the same role as 70 did and the lower band serves the same role as 30 did.

We go one step further and create a Normalized RSI by plotting %b of RSI and 50-bar Bollinger Bands. The formula is

Normalized RSI =
(RSI - LowerBB(RSI))
 % 
(upperBB(RSI) - lowerBB(RSI))

This is one of the two indicators derived from Bollinger Bands. %b depicts the location of the most recent close within the Bollinger Bands. At 1.0, the close is at the upper band, at 0.0 it is at the lower band and at 0.5 it is at the middle band. A %b reading of 1.1 means that you are above the upper band by 10% of the bandwidth. -0.2 means that you are below the lower band by 20% of the bandwidth.

One of the oldest technical tools and perhaps the most basic of the trend identification tools, the departure chart measures the difference between two moving averages, one short and one long. 10 and 20 are the default periods.

Qstick is a moving average of the bodies of Japanese candlesticks. Qstick is negative when the closes have been less than the opens for the lookback period and is positive when the closes have been greater than the opens for the same period. Thus it is a look at the internal trend of the price structure. 5-10 periods are the most commonly used parameters.

This is Roger Altman's momentum variation on Welles Wilder's Relative Strength Index, RSI. Instead of accumulating +/- price changes, RMI accumulates changes in momentum.

The first parameter is the period for RMI, default is 14.
The second parameter is the number of bars for calculating Momentum, the default is four.

Rate of Change is the point difference of price over a specified period. The price_currently - the price_{n-bars ago}. Futures traders may prefer this to Momentum.

Welles Wilder's Relative Strength Index, RSI, is a classic technical analysis tool that compares strength on up ticks to weakness on down ticks. The fixed values of 70 and 30 are most often used as signal levels. However, in a bullish environment 80 and 40 may be better suited and 60 and 20 are often used in bear markets. In fact many analysts use the swings of RSI through various levels to define bull and bear markets.

This is Larry Williams' weighted momentum oscillator. The Ultimate Oscillator is a combination of three different individual oscillators of varying time frames. For most parameters this should be the smoothest of our momentum tools. You may specify the time frames for the three underlying oscillators; 5, 10, and 20 are the defaults.

VHF is not a television designation; it is Tushar Chande's trend analysis tool. VHF compares highs with highs and lows with lows over a lookback period to arrive at its depiction of the trendiness of the data. A 14-bar period is the default.

This is a variation on Stochastics that some prefer. %R depicts where you are in the range of the past n-bars without smoothing. Note that the scale is reversed from that for Stochastics. A 20-bar period is the default.