Infrastructure mega-funds — those funds raising $2 billion or more — have been responsible for most of the capital raised each year since 2012 — and this trend shows no sign of ending. In fact, it might even be accelerating. In the past three-plus years ending March 15, 2018, 88 funds closed with an aggregate total of $171.2 billion raised. Of that total, 30 mega-funds, or 34 percent of the total number of closed funds, have raised $127.1 billion, or 74 percent of the capital.