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The video below shows a 10 year simulation run of the Precision stop on 70 UK stocks.

  • Start capital         £10,000
  • End capital   £176,755,656


  • Maximum drawdown 24.29%
  • Max Underwater days 260
  • Maximum gearing used 4.71
  • Risk fraction used 25%
  • Number of stocks 70
  • Start date January 4th 2000
  • End date October 12th 2010
  • Total number of trades 17,270
  • Commissions applied 3% per trade
  • Slippage factor applied 50%

View full report details here



Note If you have trouble viewing all the numbers when watching the video, try adjusting the resolution to 720 HD which is found on the video toolbar HD.


17 Years of statistics demonstrating the robustness of the Precision stop system

The ratios are important


The chart on the right shows the risk reward ratio of the Precision stop system on the constituents of the FT-SE250 index simultaneously.


Achieving a high risk reward ratio is a vital part to any trading system, the chart on the right demonstrates the robustness of the system, over 17 years of historical testing it maintained a risk reward ratio always greater than 1.7:1 and overall it averaged a very healthy (black line) 2.26:1 over this period.

Operating at 1.7 RR, a system is profitable with any  win /lose ratio that exceeds 36.5%.

As the odds of winning on any trade come out at around 47-49.7% one can see easily that the maths work nicely.


The system sweet spot is between 15-20% of Equity risked  with 17% being optimal

Equity % risked


Knowing how much risk to stop losses on your portfolio is a frequently overlooked topic.

But this factor alone makes a STAGGERING difference to overall profits, draw downs and also the most important of the over looked subjects, HUMAN EMOTION.


If one builds a system with huge profits but has potential for huge 50% draw downs in equity, one would have a heart attack on most bad days!

The chart on the right shows the average draw downs of the Precision stop system produced by varying overall risk to stops.


More about how much to risk



17 Years of statistics showing the win to loss ratio of the of the Precision stop system

The ratios matter...


System win to loss ratio is another important factor to consider when testing.

If one of the two ratios is poor, the other must be higher to compensate this.

If you remove commissions and market spreads from the equations, you arrive at a 50-50 chance of winning on any trade.

When we allow for costs, this is reduced slightly as the chart on the right illustrates. 

As winning trades are left to grow, and losers are cut fast, the combined effect of these 2 ratios is PROFIT



The essence of trend following is to "let go of control" and go with the flow of events

Patience is the key


Having faith in your system counts, or you will be unable to stick to it. The chart shows 2 small losing trades (page centre) which lasted 1 and 2 months each, Sticking with the system paid off in multiples on the 2 later trades. The dead dull markets of 1995, didn't make much for trend following systems.  Sooner of later the market always makes its mind up where it wants to go..... The Russian crisis of 1998 and the Tech boom and bust of 1999,2000 paid out huge gains for trend followers.




                              Is the trend up or dowm? Its irrelevant, just follow it without asking "why?"

Why trend following?

  • It allows huge potential gains that are missed when profit taking at "target levels"

  • Improves risk reward ratios

  • The only logical method of trading

  • Cuts out the hard work

  • Ensures you will catch all the large moves

  • Keeps losing trades small

  • Relaxed stress free trading

  • Makes superior gains compared to other systems

Read more about the system




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Customer Comments



Expert  traders know the power of a well designed system in following a major trend


  1. A large trend up from 16 to 310 is caught with ease using the Mach-Trend Platinum pro system.

  2. The movements that the experts are predicting are expected to be much more dramatic than the examples shown

  3. Regardless of whether your trade tracks the short moves or the long moves, you need a good system to help you survive the financial meltdown.

Time is running out... Credit availability is drying up...The cost of borrowing is gradually rising....US National debt to be equal to 35% of the entire worlds GDP in 3 years....33% of all USA tax revenues will be required just to make the INTEREST PAYMENTS on the collosal national debt...... Eventually the US will have no option other than to print money or default on their debt repayments...... US Dollars will likely cease to be the reserve currency of the world........Stimulus is running out, the Federal reserve has fired all its bullets and the only options left are to print more money or to default on the debt payments.....The problem is infinitely worse than in 1929 due to the added problem of this huge government debt...... In 1929 the USA still had a positive trade surplus and a manufacturing based economy..... In 2011 the USA will have no such resources to fall back on........The two most likely scenarios are both likely to lead to disaster......Hyper-Inflation at 40%+ or Deflationary implosion....... Either of the two possibilities will lead to huge moves in the worlds financial markets........Trading of these massive moves could be the only way out..........Wise proffessional traders have already started building huge dollar short posistions in anticipation of the debacles to come.....Many people will suffer as a result of the irresponsible un-elected Federal reserve operatives..........Many more people will lose their homes......Millions of jobs will be lost......Those who are unprepared will become impoverished in ways that they could never imagine.....What is your strategy to trade these violent market trends?.........ARE YOU  READY?


Systems, Indicators and user functions for Tradestation and Multicharts.


This collection of user functions and indicators below have been carefully assembled to provide a versatile tool kit for the advanced trader.

None of the items below have lots of flashing lights, bells or buttons as you find in the "Holy grail" type worthless advertisements, and all have been carefully chosen because they actually work as trading tools.


Some have been coded by myself while others are the work of some of the best technicians worldwide.

I have re-coded most of these into Easy language format. (ELA, ELS)


There are some free items here which you can try out by sending me a mail and specifying which ones you wish to try out. Of course if you require something that is not here I would be very pleased to hear from you.


If you need any indicator, functions or systems coded into Easy Language, Metastock, vb.NET or C# format, then feel free request it.


                                                                      Request FREE indicators or ask a question


Please sample my free products before buying so you can assess that my programming is reliable, stable and accurate in its execution. Roger

© Roger Medcalf 2005 - 2017 ... You may not reprint text or images without permission

Compatible with....


Volume flow indicator (VFI)

Designed by Markos Katsanos this oscillator has many excellent qualities. Useful as a trend confirmation indicator, an overbought oversold oscillator, divergences between the price and the VFI are usually very reliable

VFI gets the vote of confidence from Precision trading systems as being a "must have" tool in the discerning traders kit

Please click below to see some more detailed examples of charts with the VFI plotted...More details and examples


FREE   Stocks, Futures, Bonds, Forex (needs volume to run)



Author: Markos Katsanos. (Open EL code)

Compatible with....    Indicator + function + signal

Precision Stop

Trend following system and indicator that self adjusts its distance to suit noise levels and volatility factors, making it more "intelligent" than Parabolic SAR, or ATR type indicators.

Can be adjusted to suit any time frame from day-trading to long term trend following by adjusting MULTI settings, features include a neat max and min percentage distance setting to cater for individual tastes.

Takes the guess work out of knowing when the trend is up or down, based on your own input values.......More details and example videos


Price $125 (Pay-Pal)   Buy this item

Stocks, Futures, Bonds, Forex, Indices etc


Author: Precision Trading Systems. (Protected EL code)

Compatible with....           Indicator + function                       Precision divergence finder

A complex piece of code that observes multiple look backs of Demand Index lengths to hunt out when divergences exist.

Often produces stunning signals at exact market bottoms.

This is not an "always in the market" indicator and only flags up when sets up occur that show a real divergence in a market.

As Demand Index uses volume, to perform at its best this indicator needs real volume enabled..............More details and examples


Price $167  (Pay-Pal)   Buy this item

Stocks, Futures, Bonds  (Unsuitable for Forex)



Author: Precision Trading Systems. (Protected EL code)

Compatible with....              Indicator + function                     Trade Volume Index  ( TVI )

Beautiful piece of work by Steve B Achelis, which I used in some of my early systems. Makes for a smooth analysis of volumes flowing in and out of markets and has always been one of my favourites.

I have altered the code to allow length changes and smoothing.


Adds the "Volume dimension" to your price analysis in a clear and precise manner. This indicator is a valuable addition to system filters to confirm trend direction...........More



Stocks, Futures, Bonds, Forex, Indices etc


Author: Steve B Achelis. ( Protected EL code)

Compatible with....              Indicator + function                                    Q-Stick

A Simple and yet very efficient way of defining if a trend is in a bull or bear phase. Probably the best piece of work that Chande ever turned out, and yet seemingly forgotten by the whole world.

Setting lengths to 80 or more makes for a smooth analysis of trend, and the crossing of zero indicates trend direction.


See how early it signalled a bear move in the example when it crossed zero. Can be used as an short term oscillator with lengths less than 10 and often gives very early signals...More



Stocks, Futures, Bonds, Forex, Indices etc


Author: Tushar Chande. ( Protected EL code)

Compatible with....                Indicator + function Precision Volume (Tick volume for real-time )

An indicator I made for measuring demand-supply imbalances.

This indicator will only work correctly if used on real time data with tick volume enabled.


Early warning indicator ( Requires confirmation )

An oscillator type indicator which measures demand and supply imbalances in an easily understood form


Above zero = Demand > Supply over sampling period


New indicator highs or lows over a chosen long length of (100 bars+) often foretell a strong move is coming..........More



Stocks, Futures, non-traded Indices (Unsuitable for Forex)


Author: Precision Trading Systems. (Protected EL code)

Compatible with....           Indicator + function           Precision Index Oscillator ( Pi-Osc )


Highly sophisticated "consensus" indicator comprised of many different component signals. A real technicians tool that measures everything from divergences to probabilities to unique chart patterns in a single market indicator. 

Best results are given when analysing range bound and choppy markets rather than trending ones.


Some of its components use real volume so for this to perform at its best this indicator needs real volume............More


Price $397  (Pay-Pal)   Buy this item

Stocks, Futures, Bonds  


Author: Precision Trading Systems. (Protected EL code)

Compatible with....

 Indicator + function + Signal

Precision Mach-Trend

Designed to reduce whipsaw trades in trending periods and help the user reduce costly F expenses.

Mach-Trend is superbly simple to use, and is suitable for all ranges of traders. Calculated using advanced mathematics, this indicator will reduce your F and improve your overall performance. Mach-Trend Platinum pro has fully available parameters enabling advanced optimisations for the sophisticated user.........more information.


Price $995  (Pay-Pal)   Buy this item (demo available $197)

Stocks, Futures, Bonds, Forex  


Author: Precision Trading Systems. (Protected EL code)


Compatible with....          Indicator + function                              Precision Gravity System


A complex piece of code that observes multiple phases of planetary orbits, to calculate extreme points of price sets. The relative gravity of the "sun" and "moon" are calculated using advanced physics mathematics.

The first system of its kind to be introduced to stock market trading systems, its is still under developments.........more



Coming soon


Stocks, Futures, Bonds  (Unsuitable for Forex)


Author: Precision Trading Systems. (Protected EL code)

Compatible with....           Indicator + function

  Money flow index MFI


Highly effective volume indicator showing money flowing in and out of securities. Works well as an over bought oversold oscillator and can be used for divergences as well. Ranging between 0 to 100 the MFI crossing above or below 50 can be used to identify a bullish or bearish condition of a trend changing even.....More details and examples



Stocks, Futures, Bonds, Forex, Indices


Author: Unknown. (Open EL code)




Precision Index Oscillator     Site map   Contact    




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  • Futures, Forex and Stock trading contain substantial risk and are not for every investor.

  • An investor could potentially lose all or more of the initial investment.

  • Risk capital is money that can be lost without jeopardizing ones financial security or lifestyle.

  • Only risk capital should be used for trading

  • Only those with sufficient risk capital should consider trading.

  • Past performance is not necessarily indicative of future results.





Hypothetical performance results have many inherent limitations, some of which are described below. no representation is being made that any account will or is likely to achieve profits or losses similar to those shown; in fact, there are frequently sharp differences between hypothetical performance results and the actual results subsequently achieved by any particular trading program. One of the limitations of hypothetical performance results is that they are generally prepared with the benefit of hindsight. In addition, hypothetical trading does not involve financial risk, and no hypothetical trading record can completely account for the impact of financial risk of actual trading. for example, the ability to withstand losses or to adhere to a particular trading program in spite of trading losses are material points which can also adversely affect actual trading results. There are numerous other factors related to the markets in general or to the implementation of any specific trading program which cannot be fully accounted for in the preparation of hypothetical performance results and all which can adversely affect trading results.