We in India have been looking to find ways to Mark Last Thursday of Month (Futures Expire on this day)
The Latest Beta seems to make life very much easy for this purpose:
1. We may know when Next or Next or Next (etc. etc. ) Expiry will normally fall.
2. Mark correct past Expiries even when Last Thursday happens to be an holiday.
The following is a Quick Try :
Your views and comments are welcome
Regards
Sanjiv Bansal
/*************/
Plot( Close, "Price", colorYellow, styleBar );
Curr_Month_Beg = DateTimeAdd( DateTime(), -(Day() -1), inDaily );
Next_Month_Beg1 = DateTimeAdd( Curr_Month_Beg, 1, inMonthly );
Next_Month_DoW1 = DateTimeConvert( 9, Next_Month_Beg1 );
Month_LstThu1 = DateTimeAdd( Next_Month_Beg1,IIf( Next_Month_DoW1 == 5, -1,
IIf( Next_Month_DoW1 == 6, -2,IIf( Next_Month_DoW1 == 0, -3,
IIf( Next_Month_DoW1 == 1, -4,IIf( Next_Month_DoW1 == 2, -5,
IIf( Next_Month_DoW1 == 3, -6, -7 ) ) ) ) ) ), inDaily );
Next_Month_Beg2 = DateTimeAdd( Curr_Month_Beg, 2, inMonthly );
Next_Month_DoW2 = DateTimeConvert( 9, Next_Month_Beg2 );
Month_LstThu2 = DateTimeAdd( Next_Month_Beg2,IIf( Next_Month_DoW2 == 5, -1,
IIf( Next_Month_DoW2 == 6, -2,IIf( Next_Month_DoW2 == 0, -3,
IIf( Next_Month_DoW2 == 1, -4,IIf( Next_Month_DoW2 == 2, -5,
IIf( Next_Month_DoW2 == 3, -6, -7 ) ) ) ) ) ), inDaily );
Fnl_Thurs = IIf(DateTimeConvert( 0, Month_LstThu1 )>=DateNum(),DateTimeConvert( 0, Month_LstThu1 ),DateTimeConvert( 0, Month_LstThu2 ));
Plot( Fnl_Thurs, "Month_LstThurs", colorRed, styleLeftAxisScale );
Plot( DateNum(), "DateNum()", colorWhite, styleLeftAxisScale );
PlotShapes( shapeUpArrow * Ref(Cross(Fnl_Thurs - 0.5 , DateNum() ),1), colorLime, 0, Low, 0 );
Posted by: sumangalam@vsnl.com
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