Hello, Just as a general note (I have not looked at this indicator), the last 18 months has had some very unusual volatility in the markets. I had a hard time showing anything but very large gains in backtesting over that period from multiple strategies using S&P eminies. However, all the gains were made in 2 months with the rest of the time being poor performance. The poor performance periods were actually more in line with typical trading periods.
For my backtesting, I mask out the great two months and concentrate on the rest of the times. Pay close attention to the equity curve over the whole period, not just the end result. Best regards, Dennis On Jan 1, 2010, at 8:23 PM, Bob Waits wrote: > > > Thanks. This does make it more clear. It would be good to continue discussing > performance of this indicator. > > Most systems discussed in the magazine used the indicator with some other > indicator or trading system. > > Using ATR and Vortex on S&P eminis, Wealthlab strategy generated around > $33,000 in profits trading two contracts and StrataSearch said the indicator > when combined with other indicators yielded more than 35% annual return with > more than 65% profitable trades. > > > > > > From: Richard <[email protected]> > To: [email protected] > Sent: Fri, January 1, 2010 7:18:06 PM > Subject: [amibroker] Re: Vortex Indicator > > Thanks soni67c, this makes things clearer. > I just noticed that we have hijacked another thread. We are posting inside > "IB Backfill" thread. Perhaps we should stop or start another one if people > want to continue discussing performance results of this system. > > Regards > Richard > > --- In amibro...@yahoogrou ps.com, "soni67c" <soni...@... > wrote: > > > > > > > > Hello Richard , > > please check this. > > //========== ========= ========= ========= ========= ========= ==== > > //The AB code is defined as: > > // Vortex Indicator > > // S&C Traders Tips Jan 2010 > > > > //The system is defined as: > > //- Go long when the VI (OR Dmi) goes from less than zero to greater //than > > zero. > > //- Go Short when the VI (OR Dmi) goes from above zero to less than //zero. > > //- All trades are placed "next day market on open." > > //That would translate to: > > period = Param("Period" , 14, 2 ); > > > > VMP = Sum( abs( H - Ref( L, -1 ) ), period ); > > VMM = Sum( abs( L - Ref( H, -1 ) ), period ); > > STR = Sum( ATR( 1 ), period ); > > > > VIP = VMP / STR; > > VIM = VMM / STR; > > > > Oscill = Param("oscil" ,1,0,1,1) ; > > if( Oscill == 0 ) > > { > > Plot( VIP , "VIP", IIf(VIP>VIM, colorPaleGreen, colorPaleGreen) , 4 ); > > Plot( VIM , "VIM", IIf(VIP<VIM, colorRed, 4), 4 ); > > Buy=Cross(VIP, VIM ); > > Sell = Cross(VIM,VIP ); > > BuyPrice = ValueWhen(Buy, C);//Open; > > SellPrice = ValueWhen(Sell, C);//Open; > > PlotShapes( shapeUpArrow * Buy ,colorBlue); > > PlotShapes( shapeDownArrow * Sell ,colorRed); > > Plot( Flip( Buy, Sell ), "Trade", colorPaleGreen, styleArea | > > styleOwnScale, 0, 1 ); > > } > > else > > if( Oscill == 1 ) > > { > > diff=VIP-VIM; > > vcol= IIf(diff > 0,30,32); > > Plot( diff , "Diff" ,vcol , 6 ); > > Buy = diff > 0 AND Ref(diff,-1) < 0; > > Sell = diff < 0 AND Ref(diff,-1) > 0; > > BuyPrice = ValueWhen(Buy, C);//Open; > > SellPrice = ValueWhen(Sell, C);//Open; > > PlotShapes( shapeUpArrow * Buy ,colorBlue,0, -0.1,0); > > PlotShapes( shapeDownArrow * Sell ,4,0,0.1,0); > > Plot(Flip(Buy, Sell), "Trade", colorPaleGreen, styleArea | styleOwnScale, > > 0, 1); > > } > > Title = EncodeColor( colorWhite) + "Vortex Indicator-0110" + " - " + Name() > > + " - " + EncodeColor( colorRed) + Interval(2) + EncodeColor( colorWhite) + > > " - " + Date() +" - "+"\n" +EncodeColor( colorYellow) +"Op-"+O+" > > "+"Hi-"+H+" "+"Lo-"+L+" "+ > > "Cl-"+C+" "+ "Vol= "+ WriteVal(V); > > //========== ========= ========= ========= ========= ========= ========= > > ==== > > Thank you > > --- In amibro...@yahoogrou ps.com, "Richard" <richpach2@> wrote: > > > > > > Hi "droskill", > > > > > > I am a little confused by the rules as well. Sum(abs(.... )..) will never > > > go below 0 and you can see it if you plot VIP or VIM. > > > As the result, he rules do not generate any Buy or Sell signals. > > > Buy=Cross(VIP, 1); seems to create some reasonable entries but this is > > > not what the rules say. > > > > > > Regards > > > Richard > > > > > > --- In amibro...@yahoogrou ps.com, "droskill" <droskill@> wrote: > > > > > > > > The AB code is defined as: > > > > // Vortex Indicator > > > > // S&C Traders Tips Jan 2010 > > > > period = Param("Period" , 14, 2 ); > > > > > > > > VMP = Sum( abs( H - Ref( L, -1 ) ), period ); > > > > VMM = Sum( abs( L - Ref( H, -1 ) ), period ); > > > > STR = Sum( ATR( 1 ), period ); > > > > > > > > VIP = VMP / STR; > > > > VIM = VMM / STR; > > > > > > > > Plot( VIP, "VI"+period+ "+", colorBlue); > > > > Plot( VIM, "VI"+period+ "-", colorRed ); > > > > > > > > The system is defined as: > > > > > > > > - Go long when the VI (or Dmi) goes from less than zero to greater than > > > > zero. > > > > - Go short when the VI (or Dmi) goes from above zero to less than zero. > > > > - All trades are placed "next day market on open." > > > > > > > > That would translate to: > > > > > > > > SetTradeDelays( 1,1,1,1); // everything delayed 1 day > > > > Buy = VIP > 0 AND Ref(VIP,-1) < 0; > > > > BuyPrice = Open; > > > > Sell = VIP < 0 and Ref(VIP,-1) > 0; > > > > SellPrice = Open; > > > > Short = Sell; > > > > Cover = Buy; > > > > > > > > That should do it - I've not tested this but it should be close. > > > > > > > > > > > > > > > > --- In amibro...@yahoogrou ps.com, Bob Waits <bobwaits2@> wrote: > > > > > > > > > > I have the magazine and the formula, but it is only for the > > > > > oscillator and not for a trading system, which Tradestation and > > > > > Nuroshell have provided. I was wondering if anybody has used this as > > > > > a system and tested the validity of this indicator. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ____________ _________ _________ __ > > > > > From: droskill <droskill@> > > > > > To: amibro...@yahoogrou ps.com > > > > > Sent: Wed, December 30, 2009 8:15:57 PM > > > > > Subject: [amibroker] Re: Vortex Indicator > > > > > > > > > > > > > > > Here: > > > > > > > > > > http://www.traders. com/Documentatio n/FEEDbk_ docs/2010/ > > > > > 01/TradersTips. html#TT4 > > > > > > > > > > --- In amibro...@yahoogrou ps.com, Bob Waits <bobwaits2@ ..> wrote: > > > > > > > > > > > > In the latest S&C magazine, there is a nice article on Vortex > > > > > > Indicator. While the formula for the indicator is listed in the > > > > > > magazine, I was wondering if anyone has written a code for turning > > > > > > this into a system and testing the validity of this indicator. The > > > > > > Tradestation and Nuroshell has code for an entry, exit and shorting > > > > > > strategies. > > > > > > > > > > > > Thanks. > > > > > > > > > > > > > > > > > > > > > > > > > >
