Hi pmathew,
Your desire to learn is most appreciated.....I am not sure if I can explain it without drawing a chart,but to put it simply,in a weekly chart,if a stock takes out the previous week's high,we say that it is making ahigher high .If it takes out the previous week's low,we say it's making a lower low .
A series of higher highs and then the stock turns downwards to produce a series of lower lows,we say that the stock has formed a pivot at the top.Then when the stock continues its upward journey forming higher highs and producing apivot that is lower than the previous pivot,we say that the stock is making alower pivot high .
Taking out the pivot high is a continuation of the upward trend.Taking out the pivot low is a continuation of the downward trend.Making a lower pivot high smacks of a possibility in a change of trend.
How do we know for sure?We never do,my friend,for nothing is sure in life and the markets.Therefore we have a Trading Plan,Risk n Money Management and stop losses.
Educate yourself.....and Happy Trading!!
Saint