Actually, you do buy oil stocks when the price of oil is low and you anticipate that demand will increase and cause oil prices to rise in the future. I don't think Warren Buffett made his billions by buying companies when there were at their peak, but rather when they were distressed due to market conditions or other conditions, yet were still structurally sound and good long term values.
Energy should definately be a segment of your total portfolio. Of course you don't put all your eggs in one basket.
Also, I'm not saying that any stock having an extremely low price is a good buy. Some stocks are low because they are managed poorly and not structurally sound. Those are bad buys no matter what the market does.
Agreed. Unless you're a very short term / day trader type who is a pure momentum player, it's generally buy low, sell high. I greatly reduced the $ I had in energy in Oct 2014, when oil was very high and was just starting to come down sharply and suddenly. I treaded very lightly for a while in energy, then started to build my energy positions back up in late '15 - early '16... I again took quite a bit of my energy $ off the table in late '16 when they shot up big post-election.
Commodities and investments linked directly to commodities tend to be very volatile, and should be handled more carefully than most other investments IMO... Smaller tech companies and especially small cap biotech companies are also highly volatile - better to buy them cheap, be patient, and sell most or all of a position if / when it eventually shoots up big in a short time period on earnings news, M&A, drug trials, rising commodities prices, or whatever.
WLL was in the upper 30's when this thread started in early 2015 - it's now below $10. I actually bought a fair amount of it throughout much of 2016 as it continued to fall, and was actually able to sell most of it for a bit of a profit several months ago.
As for STTX, it's worthless - which doesn't surprise me.