Diamond said Marvel remained on top thanks to demand for issues like Fantastic Four No587, which featured the death of the Human Torch, and Ultimate Comics Spider-Man, which saw Miles Morales take up the mantle of the wall crawler after Peter Parker's death.
That helped to give the company a 37 per cent dollar market share and a 41 per cent unit market share.
That, along with DC's New 52, created more interest from new and first-time buyers, and the outlook is set to be similar for 2012.
"Sales of comic books were quite strong in the second half of the year, led by the September launch of DC's New 52 comic books, and that positive trend has continued in the months since," said Diamond president and CEO Steve Geppi. "With a full slate of high-profile new projects scheduled for next year, we are optimistic that comic book sales will increase again in 2012."
Buckley, who joined Marvel in 2003, said the uptick in sales from 2010 to 2011, up 1.2 per cent industrywide was further proof that buyers would be there, whether in the shops or online through digital comics, if compelling stories were written and drawn.
Marvel, for its part, is planning a massive story that sees two of its most famous teams, the X-Men and the Avengers, in a 12-issue mini-series as they brawl over the return of the Phoenix, one of the publisher's most powerful characters. That is set for release starting in April.
"We all want to see the best of the best go against each other - Lakers and Celtics, Ali and Frazier, Yankees and Red Sox. And in comics, it's the Avengers fighting the X-Men," said Axel Alonso, Marvel's editor-in-chief.
"This is the kind of high-octane, action-packed story that fans demand while also having a profound effect on every character involved and reshaping the Marvel Universe in its wake."
- AP