It was quite an achievement for an unknown newcomer".[54] In May 2010, it was reported that A Certain Magical Index became Dengeki Bunko's No. 1 bestseller and it became the first Dengeki Bunko series to sell over 10 million copies.[55] Later that year, it became the fifth best selling light novel in Japan, beating other popular series such as Full Metal Panic!, Shakugan no Shana, and Haruhi Suzumiya.[56] It was reported in October 2014 that the entire franchise including the light novels and manga had sold over 28 million copies.[57] It was reported in August 2017 that the light novels have sold over 16.35 million copies in Japan.[58] As of July 2018, the series was reported to have sold over 30 million copies.[59]