Hi All- Being new to metastock formulas, I wanted to make sure that the correct formula for 52 wk high is HHV(H,255); and, that for the 52 wk low is LLV(L,255). I have seen some software use 250 periods, others 255 or 260. By my own calculation there will be 252 trading days in 2005. Is there a standard number of periods that should be used? Thanks!

A 252-period HHV/LLV on a chart with only 100 bars of data for the past year, will result in approximately a 2.5 year High/Low instead. So, for a true 52-week High & Low, regardless of missing chart data: [code:1:93cfdec1fe] { True 52-week Highs & Lows } { http://www.metastocktools.com } { User input } plot:=Input("plot: [1]52Week Hi/Lo, [2]Signals",1,2,1); { Last available data date } day:=LastValue(DayOfMonth()); mth:=LastValue(Month()); yr:=LastValue(Year()); { True last 52-week period } active:=Year()>yr-1 OR (Year()=yr-1 AND (Month()>mth OR Month()=mth AND DayOfMonth()>=day)); start:=active AND Alert(active=0,2); { 52-week Highs } YearHi:=HighestSince(1,start,H); YearHiSignals:=H>Ref(YearHi,-1); { 52-week Lows } YearLo:=LowestSince(1,start,L); YearLoSignals:=L<Ref(YearLo,-1); { Plot on price chart } If(plot=1,YearHi,YearHiSignals); If(plot=1,YearLo,-YearLoSignals) [/code:1:93cfdec1fe] jose '-) http://www.metastocktools.com