Moody's Investors Service raised Spain's sovereign debt rating one notch to Baa2 with a "positive" outlook on Friday, praising the country's progress in rebalancing the economy, structural reforms and improved market access.

The move comes as Spain emerges from one of its deepest recessions in decades, struggles with record high unemployment where one on four of the workforce are out of a job and fights to narrow one of the euro zone's widest public sector deficits.