Al-Quds day is not a Shia gathering, its strictly non-sectarian. Whist no studies have been carried out, as it would run counter to the spirit of unity that embodies Al-Quds Day, when we look at the rallies held around the world on Al-Quds day from South Africa, Nigeria, Egypt, Palestine to Indonesia, then consider the demographic breakdown of schools of thought in Islam its probably true that more Sunnis than Shias participate in Al Quds Day.
This is also reflected in the list of speakers addressing this years London rally and the organisations giving their support to it.
.png)
