bond investor

Piotroski Formula Yields 14 Promising Investments

Since this was written, PPD (PrePaid Legal) has become subject of an SEC inquiry into its membership statistical information, marketing practices, and stock repurchase program. I thought the 9 Piotroski test screened *out* potential accounting oddities! I guess no screen is perfect, and one example doesn't invalidate the Piotroski method.