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Historical Volatility for Amibroker (AFL)
Rating:
5 / 5 (Votes 1)
Tags:
amibroker, oscillator
The Rules
Summary of rules as in the article.
Keep track of the daily returns Calculate the 20-day historical volatility of your returns When volatility exceeds 30% and the return over the last three days is negative, exit all positions Restart the strategy when volatility falls below 30% and the return over the last three days is positive.Each strategy will have a different volatility threshold which one must test for. He also suggests possible using different volatility values in steps 3 & 4 to reduce whipsaws.
Indicator / Formula
Copy & Paste Friendly
1 2 3 4 5 6 | // Provided by Cesar Alvarez www.AlvarezQuantTrading.com// Historical Volatility lenPeriod = Param("Periods",100,10,1000,1);HV = 100 * StDev(log(C/Ref(C,-1)),lenPeriod) * sqrt(252);Plot(HV, "HV("+lenPeriod+")", ParamColor( "Color", colorRed ), ParamStyle("Style") ); |
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