Apple is rallying again today up 1.3% in midday action following the release of strong sales numbers for its new Mac operating system, Leopard. Since its Friday release, Leopard has sold more than 2 million titles to easily outpace first-weekend sales of Mac OS X Tiger, which had been the company's most successful operating-system release.

Leopard is priced at $129 and is the sixth major release of the Mac OS X family of operating systems. For $199, you can get a Family Pack, which includes 5 licenses. According to Apple, Leopard features more than 300 changes and enhancements to the previous operating system.

The stock is consolidating right below all-time high levels near the $190 mark but has yet to hit a new high in today's trading. Sentiment is mixed on Apple, which shows a Schaeffer's put/call open interest ratio (SOIR) of 0.98, in the 72nd annual percentile. Short sellers are far more complacent, as evidenced by the equity's short-interest ratio of 0.5 day to cover. Finally, AAPL has earned 9 strong buys, 6 buys, and 4 holds from Wall Street, but given the company's stellar sales and strong price action, bullishness doesn't come as much of a surprise.