Shares of Apple Computer (AAPL, news, chart) hit a high of $157.90 early, but are now trading down $2.97 to $153.69 after Doug Kass wrote a piece for The Street.com that mentioned chatter about a massive product recall due to problems with batteries. Trading in Apple options is picking up, with 79,000 AAPL puts and 73,000 calls trading on the day.