Fractal AMA (Adaptive Moving Average) is a powerful VertexFX client side trend following VTL indicator that gives excellent entry and exit signals typically on higher (H4 and Daily) time-frames.

There are two components in the indicator – main Fractal AMA indicator (Blue), and the signal indicator which is Red. We calculate the range which is the Highest High minus Lowest Low, over the R_PERIOD, and half of R_PERIOD. Then digital filter is applied to calculate the difference between the logarithms of the ranges for the different periods. Finally it is smoothed using the MULTIPLIER to calculate the main BLUE signal. Likewise, the difference is smoothed using the SIGNAL_MULTIPLIER to derive the signal Red line.

ForexOffTrend indicator is a powerful VertexFX client side VTL indicator for trend following trading systems and markets. It is based on the concept that markets make Higher Highs in up trends and Lower Lows in downtrends.

The indicator uses SSP as the look back period to determine the highest highs and lowest lows. The Highest High and Lowest Low over the specified SSP period are calculated. The indicator is calculated by dividing the difference between the Highest High and Lowest Low by the K_MAX filter threshold.

Zero Lag MACD indicator is a VertexFX client side VTL indicator based upon the MACD. It attempts to eliminate the lag that is inherent in MACD indicator by using two levels of filtering. It comprises of two components, the MACD component (MAGENTA histogram), and the Signal component (ORANGE line).

To calculate the MACD component, we first calculate the fast and slow EMA based on FAST_EMA and SLOW_EMA periods. We once again calculate the fast EMA of the calculated fast EMA using the FAST_EMA period, and the slow EMA of the calculated slow EMA using the SLOW_EMA period. The fast EMA lag is calculated as,

The William Histogram Waller Test is a VertexFX client side VTL indicator which is a variant of the Larry Williams %R method and is used to find trending markets.

To calculate the indicator value, we find the Highest High and the Lowest Low of the recent 40 bars. We calculate the ratio by dividing the difference between the Highest High and the current close, by the difference between the Highest High and the Lowest Low. This value is multiplied by 100, and scaled in the range of -50 to +50. When the markets are rising, the difference between the Highest High and the Close increases as the market makes new Highs, whereas the difference between the Highest High and Lowest Low remains more or less constant as the trend upwards. Hence the indicator value rises and responds quickly to rising and falling markets. It requires at least 40 bars of data for calculations.

Schaff Trend Cycle is a VertexFX client side VTL indicator used to determine the two important characteristics of a trend – mainly its strength, and its cycle.

SATL (Slow Adaptive Trend Line) is a VertexFX client side VTL indicator used to determine trending markets and specifically for trend following systems.

It employs digital filter, mainly the low frequency FLF-2 filter. In Digital Signal Processing theory, prices are considered to be based of two components – the signal component – which is the main trend, and the noise component – which is the whipsaws and sideways movements. The SATL indicator attempts to eliminate the noise component and refine the main trend component.

LWMA Crossover Signal indicator is a VertexFX client side VTL indicator based on a fast moving and slow moving Linear Weighted Moving Average indicator (LWMA).

Least Square MA is a moving average based VertexFX client side VTL indicator that employs least-square’s, best-fit model. In the least squares best-fit methodology, given a number of points, we find an ideal line which is close to all points.

Flat Trend RSI indicator is a VertexFX client side VTL indicator based on the RSI indicator, that provides trading signals when specific RSI thresholds are crossed.

The concept behind the Flat Trend RSI is that a strong bullishness continues when the RSI rises above 70, till it leads to exhaustion of that trend. Similarly, a strong bearishness continues when the RSI falls below 30, and till exhaustion of this bearish trend, at which time it starts rising again. To calculate the Flat Trend RSI, we first calculate the RSI over RSI_PERIOD.

I4_DRF is a VertexFX client side VTL indicator that determines the start of new trends. Also it can be used to determine the end of the trend.

It calculates the number of occurrences of up closes and down closes of the current close compared to the close between the last 11 to 21 candles ago. Whenever the current candle closes above the candle 11 bars ago,