I always tell people that paying too much for a stock is the cardinal sin.
I don't normally trade stocks. I buy them and hold them 5, 10 or more years. The key to long-term stock ownership is owning QUALITY stocks at low prices. This approach has worked extremely well for me.
JP Morgan came out with good numbers today, much better than the market expected. The stock was up about 6% in pre-market trading. I'm skeptical about this short-term “showing”. JPM is as subject as any bank to the inversion of interest rates. They may have gained as depositors fled from regi