For May 2015 the sales numbers are still heavily dominated by the mega-events from DC and Marvel, though Marvel is heavily outweighing DC with its first issues of Secret Wars.  Loot Crate is making a huge difference making small books like Bravest Warriors go into huge half a million numbers.  Star Wars is still among the top selling books, a trend that should continue until well after the new movie is released.  The numbers are dramatically increased for this month because of the tie-ins for the events, but this also drove indie books down.  We see that Walking Dead, Fight Club 2, Saga, Descender, and Wytches are leading up the indie books for the month.

Estimated Comics Sold to North American Comics Shops
as Reported by Diamond Comic Distributors
This list includes all items on Diamond’s Top 300 charts, plus any post-#300 items from its Top 50 Indy and Small Publisher charts. If you don’t see a book, Diamond released no data for it.

Items marked with asterisks [*] had their reported orders slightly reduced due to returnability.
Items marked with daggers [†] include orders of nearly 500,000 copies from Loot Crate, all of which were distributed outside the comic-shop market.