TABLE LIKE
A (DT) B(NAME) C(BUY) D(SELL) E(FUNCTION
REQUIRE ? LIKE) THISH)
1 1/1/08 AA 25 0 4TH
TERM(BUY IN 1ST TERM BUT SELL IN 4TH TERM
2 4/1/08 AB 10 10 TRADE
3 9/1/08 AC 25 0 HOLD
4 12/1/08 AA 0 25 4TH
TERM(SELL IN 4TH TERM)

SIR , GIDE FORMULA FOR COL E