Cepheid (CPHD)

Company. "applying breakthrough microfluidics and microelectronics technologies to revolutionary test systems for DNA analysis applications." (company website)

Buy. This was my second attempt to make some money from Cepheid; the first ended in mid-October when I sold at for little more than break-even. This attempt began one month later.

I bought Cepheid after three days of heavier than average volume that brought CPHD stock above $6. It soon made another 50¢ jump to $6.50 before taking a giant-sized leap above $8.00.

Sell. I decided to sell today because of a sharp rise in selling pressure over the last two weeks (red -DI line) and corresponding fall in buying pressure (green +DI line). This chart pattern looked similar to the one for GCOM, which I also sold today after watching nice potential gains drop back to nothing. Since the stock is up so much since a low around $3 in May, it seems reasonable that a pull-back is in order.

If I'm wrong, I can always buy back in for a third time!