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Commodity Channel Index Description : The CCI is a price momentum indicator that works well for commodities,stocks, and mutual funds. Usage: CCI( Period1 ) Returns: Array where: Period1 = number of periods in the CCI calculation as shown below. Mathematically: CCI = (M - A)/(X * D) percent where: i(nput,periods) =The user defined periods. M(ean,Price) =Mean price of the current-day sample period. A(verage,Mov.) =The p-period simple moving average of M. D(eviation) =Mean deviation ofabsolute values of the numerator over p periods. X(known,unkown)=An adjusting factor, 0.15, which normalizes the excursions to a trading range of +/- 100. percent(%result) =The full formula's Return value The CCI is a sort of "noise" filter, for which the random fluctuationsshould fall inside the +/- 100 percent range. Excursions outside this range tend to be nonrandom and indicatetrading opportunities. Suggested trading rules are: 1. Buy long when CCI goes above +100%. 2. Sell long when CCI subsequently returns below 100%. 3. Sell short when CCI goes below -100%. 4. Cover shorts when CCI subsequently returns above -100%. - Selection of a large number of periods (p) will filter out much of the noise, but can mask trading opportunities and trends. - A smaller number of periods can create false signals. 90 and 53 weeks as tentative starting periods for your analysis are suggested. Another way of using the CCI is to note when the security beinganalyzed rises dramatically, but the rise is not reflected by theoverall momentum represented by the CCI. Such a divergence isusually followed by a price correction for the security. [17853] ----- Original Message ----- From: "M. Robb" <robb@xxxxxxxxxxxx> To: <metastock@xxxxxxxxxxxxx> Sent: zaterdag 18 maart 2000 6:54 Subject: Re: CCI > The appearance of MS CCI standard, and CCI-Equis diffe from the formula you > sent. > > ((MP()-Mov(MP(),14,S))/ > (1.5*Stdev(Abs(MP()),14)))*100 > > The "CCI -equis" seems a little closer to yours. > > Strangely, the MS "CCI -standard" is less smooth, but less useful at > turning points. > > M.R. Re: CCI To: "Metastock-List" <metastock@xxxxxxxxxxxxx> Subject: Re: CCI From: "A.J. Maas" <anthmaas@xxxxxxxxx> Date: Sun, 19 Mar 2000 02:54:09 +0100 Organization: Ms-IRB References: <24FA77225FA5D111869F0000C025B6F20122E380@xxxxxxxxxxxxxxxxx> Reply-To: metastock@xxxxxxxxxxxxx Sender: owner-metastock@xxxxxxxxxxxxx The appearance of theMSK's "CCI-Standard" and "CCI-Equis" indicators differs full stop. My mail'sCCI indicator is close to the CCI-standard.Andto topit off, the Achelis'TA from A to Z weblink version also "totaly differs". Also note that in the CCI formula that I had send, a "large typo" mighthave been made, if the in the MSK's Help+Manual interpretation (see furtherbelow) explained "Equis formula developing for CCI" was to be used. Original: ((MP()-Mov(MP(),14,S)) /(1.5*Stdev(Abs( MP()) ,14)))*100 Then the correct(ed) formula would be: ((MP()-Mov(MP(),14,S)) /(1.5*Stdev(Abs(Mov( MP()-Mov(MP() ,14,S),14,S)),14)))*100 here the adjusted large typo is than in the extra average: "Mean deviation of absolute values of the average numerator over p periods." where in the previous formula the "Mean deviation of absolute values of the numerator over p periods." was used. Please correct me, if I am wrong in the "interpretation" of this line. Also correct me if you're being confused, as well as that perhaps Equis and its President are also being confused. Regards, Ton Maas ms-irb@xxxxxxxxxxxxxxxx Dismiss the ".nospam" bit (including the dot) when replying. Homepage http://home.planet.nl/~anthmaas ===========MSK Help+Manual================== CCI according to Equis The Commodity Channel Index (CCI) is calculated byfirst determining the difference between the mean price of a commodityand the average of the means over the time period chosen(where Mean is the exact middle between 2 extremes, egMidPrice). ///////////section1: MidPri:=((H-L)/2); Diff:=MidPri-Mov(MidPri,14,S); This difference is then compared to the average difference over the timeperiod (this factors in the commodity's own inherent volatility). ///////////section2: AveDiff:=Mov(Abs(Diff),14,S); EquationComp:=Diff/AveDiff; The result is then multiplied by a constant that is designed to adjust the CCI so that it fits into a "normal" trading range of +/-100. ///////////section3: AdjCon:=66.66667{equivelant=2/3tds}; PercResult:=EquationComp*AdjCon; Further details on the contents and interpretation of the CCI can be found inthe October 1980 issue of Commodities magazine (now known as Futures).The article was written by Donald Lambert. CCI-Equis custom MidPri:=((H+L+C)/3); Diff:=MidPri-Mov(MidPri,14,S); AveDiff:=Mov(Abs(Diff),14,S); EquationComp:=Diff/AveDiff; AdjCon:=66.66667{equivelant=2/3tds}; PercResult:=EquationComp*AdjCon; PercResult Name: CCI-Standard custom (Typ()-Mov(Typ(),14,S))/ (1.75*Stdev(Abs(Typ()),14))*125 {Note: this is the closest 'equal' to the build-in version} Note1: The CCI indicator used in older versions of MetaStock is called "CCI (EQUIS)." Note2: "CCI (Standard)" is the recently modified version that is consistent with the author's current calculation method. Note3: The interpretation of both methods is identical. CCI according to Steve Achelis TA from A to Z book. For Metastock v6.5+ |
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CCI - Donald Lambert
{CCI according to Steve Achelis' TA from A to Zbook, of which an electronic version can be found http://www.equis.com/free/taaz/cci.html}
step1:=(H+L+C)/3;
step2:=Mov(step1,14,S);
step3:=Ref(step1,-1)-step2 AND
Ref(step1,-2)-step2 AND
Ref(step1,-3)-step2 AND
Ref(step1,-4)-step2 AND
Ref(step1,-5)-step2 AND
Ref(step1,-6)-step2 AND
Ref(step1,-7)-step2 AND
Ref(step1,-8)-step2 AND
Ref(step1,-9)-step2 AND
Ref(step1,-10)-step2 AND
Ref(step1,-11)-step2 AND
Ref(step1,-12)-step2 AND
Ref(step1,-13)-step2 AND
Ref(step1,-14)-step2;
step4:=Mov(Abs(step3),14,S);
step5:=step4*0.015;
step6:=step1-step2;
step7:=step6/step5;
step8:=step7/20;{for the +100, -100 scale}
step8
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