Apple posted record revenues for the last three months of 2012 but still managed to fall short of market expectations.
The computer giant's rocket-like growth stalled with earnings of £8.2 billion remaining flat compared to the year before - marking the first time the technology company had not boasted double-digit increases in earnings for years.
Revenue from October 1 to December 31 last year came in at a record £34.4 billion ($54.5 billion) but fell short of the $55 billion forecast by Wall Street.
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Accompanied by the Duke of Edinburgh, the Queen will attend the opening ceremony of the fifth session in the Holyrood chamber.
Ms Leadsom has received the backing of Ian Duncan Smith, the former work and pensions secretary.
The former shadow work and pensions secretary is considered a more viable candidate than Angela Eagle, a Labour source has told ITV News.