Some good points above. Totally agree it all depends on the...

Some good points above.
Totally agree it all depends on the stock and why you are buying it.
If it is a trade on an already moving stock then i will buy a small package ( up to 5% of portfolio, keep emotion out of it) and be pretty ruthless should it not work out.
If i am buying a stock cause i want it longer term. then I pilot and add to within its trading range to get a goodish average ( hopefully, although there always seems to be a range below).
I am wary of buying more on price movement break outs without FA support. Have ruined many a price average doing that. Was one of my first lessons on small caps in PSY (an old Fib pump for those that remember.) Although I had to learn it a few more times.Turned a big profit into a bigger loss , blinded my my billiance in being up 300%. Now I tend to sell into such moves.
I am also wary of averaging down once the stock falls below that range. Will wait for signs of a clear change in trend.
And as you geussed from that Kanga, I conglomerate the stocks into a price ave ( except for tax purposes).
Anyway just my madness, not sure there is method in it.

Amazing how such a small island has dominated popular music over the years.



One of my favourite contemporary English groups are the Mods.