Apple closed at $23 on the Nasdaq on Friday, as analysts reacted favourably to Mac OS X.

Apple will peak at $24 in the short term, according to Nasdaq.

Friday's six per cent rise follows optimistic announcements from three major analysts regarding the company's long-term outlook. Apple shares were traded in twice the normal volume.

IdeaAdvisor.com analyst Elyssa Jaffe expects the company to enjoy increased hardware sales on account of Mac OS X.

Analysts interviewed by US financial Web site, ON24 also voiced positive expectations for Apple. Kevin McCarthy of Credit Suisse First Boston, said: "The company has a strong outlook and I expect it to outperform the rest of the industry."