First let us get the March market split out of the way. For March 2006 the NPD market share was as follows:
Sirius – 56%
XM – 44%
For the entire first quarter the NPD share split was as follows:
Sirius - 59%
XM - 41%
Sirius Satellite Radio has led XM Satellite Radio in the last seven consecutive months, and 8 out of the last 10 months. Some have attributed this to the Howard Stern Effect, and certainly that would appear to have had an impact.
What is clear from this data is that Sirius Satellite Radio is performing very well at the retail channel, and it would appear that the brand recognition of Sirius remains to be strong.
via The Inside Sirius Alliance partner Satellite Standard