Why Sustainable Investing Is A Win-Win Editor’s Note: This article is by Alison Loat. Alison is the Managing Director, Sustainable Investing and Innovation (SII) at OPTrust, a defined benefit pension plan with over 98,000 members and almost $23 billion in assets under management, based in Toronto, Canada. There are few things in life that are truly win-win. Most decisions involve give-and-take, setting priorities, and making sacrifices – today’s losses traded for tomorrow’s triumphs.