LONDON--(BUSINESS WIRE)--I Squared Capital, a leading global infrastructure investment manager, has closed its ISQ Global Infrastructure Fund II at the $7 billion legal cap, exceeding an initial target of $5 billion. The fund received commitments from over 100 institutional investors with oversubscribed demand and a re-up rate reaching over 80 percent from the previous fund. “The fund is already 24 percent invested with portfolio companies in the U.S. midstream sector; the leading trailer and t.