NEW YORK ( TheStreet) -- Crisis at home. Crisis abroad. In other words, business as usual at the markets.Another reminder that successful investors do look at stock markets. They look at a market of stocks. No matter what is happening with Syria, the debt ceiling and the Fed taper, some stocks are going to thrive. Some not. That is why it is important every day to watch your individual holdings whatever they may be. During this past week I have continued to check my holdings on a daily basis and buy and sell stocks as I see fit. I have sold a few weak links that weren't doing well in spite of a strong market because why would they do well in a weak market? At the same time, this week I have seen some stocks that made my eyeballs pop out of my head and I added them to my portfolio. Something else wild happened this past week -- oil is now trading at $108 per barrel! It's been a long time since I've seen oil trade at this price, and, as a result, the oil-related asset class is thriving. You could buy Chevron ( CVX) or Exxon Mobil ( XOM) but their respective performance pales in comparison to a much younger, more aggressive, oil-related company.