Dollar averaging down or up

It seems to me that so many SXY investors are still underwater. Why haven't you guys dollar averaged down? If you have confidence in a company and you're under water, dollar averaging down is a winning strategy. (That's if you have the cash).

In the same way, if you have confidence in a company and are above water, then dollar averaging up is also a logical strategy. Again if you have confidence in a company like SXY which is in the sweet spot of the gas business, it makes logical sense to buy more, as in the long run it doesn't matter that your overall average price was because as the SP goes up as you'll just be making more money as she rises.

I used to play multiple stocks in a sector and learnt my lesson the hard way, as some stocks go up and some go down, so overall your portfolio goes nowhere fast.

If you're going to place a bet in a sector, pick the one that has solid management, a vision that you agree with and just stay focused with the one.

Think about it.