Wednesday, July 11, 2012 - 11:05am
Clear Channel had the largest percentage month-to-month growth in May amongst the Top 20 webcasters ranked in Triton Digital's Webcast Metrics. However, in terms of raw audience gains, Pandora was once again far-and-away the leader.
Pandora's AAS (Average Active Sessions, essentially equivalent to AQH) grew by more than 51,000 from April to May 2012, according to the Domestic Mon-Sun 6a-12m daypart. That's a monthly growth of 4% and a year-to-year gain of 129%. Pandora had an AAS of 1,241,819 in May 2012.
Meanwhile, #2-ranked Clear Channel grew 7% month-to-month, reaching an AAS of 183,257. Clear Channel's AAS is up 128% year-to-year, just about matching Pandora's yearly gain.
Slacker -- currently ranked #4; also includes AOL Radio -- grew its AAS 4% month-to-month and continues to gain on the #3-ranked CBS Radio, which declined 3% from April. CBS Radio is down 39% year-to-year, while Slacker has climbed 72%.
Most other broadcasters listed in the Top 20 ranker were flat or down month-to-month. Exceptions include Townsquare (up 6%), Univision (up 6%) and Cox (up 4%). As for the pureplays, Digitally Imported grew 2% month-to-month while AccuRadio declined 4%.
Though May had the Memorial Day holiday -- and arguably could be the start of the "summer duldrums," a period in which Internet radio listening traditionally declines slightly -- it actually had about the same number of weekdays as April.
(The chart above shows the growth of Pandora, CBS, Clear Channel, the top 5 terrestrial radio groups and Slacker from September 2009 through May 2012. Note that Pandora's AAS numbers from December 2010 through mid-August 2011 were affected by the omission of tracking code in some of its mobile apps. Click to view in full size.)
You can find the Domestic Mon-Sun 6a-12m ranking below. Find out more from Triton Digital’s Webcast Metrics report here (PDF) and find our coverage of April 2012’s ratings here.