They were named after Maurice "Rocket" Richard of the Montreal Canadiens, and their team crest depicted his number, 9.

[3] President and governor Serge Savard Jr. confirmed on April 17, 2013, that the QMJHL had contacted the Rocket two days earlier with a proposal to buy the struggling franchise.

[4] However, an ownership group led by Geoff Boyle agreed to purchase the team, ensuring its future in Charlottetown for 2013–14 and beyond.

[7] On March 29, 2016, the Islanders set a new QMJHL record for most shots on goal in one period of a playoff game with 32.

[2] On May 30, 2022, the Islanders won their third round series to make their first-ever appearance in the President's Cup Final.