Wall Street’s most closely guarded and lucrative secrets may finally become public, if New York Democratic lawmakers pass a new bill requiring financial firms to show what they are doing with hundreds of billions of dollars of Americans’ retirement savings.

The groundbreaking legislation, sponsored by New York assemblyman Ron Kim, would require state officials to disclose the contracts governing how private equity firms, real estate companies, and hedge funds manage money from New York’s pension system.

In the two decades since public pension systems began funneling workers’ money into those high-risk, high-fee investments, states and cities have concealed the contracts governing the investments of the retirement savings of millions of teachers, firefighters, first responders, and other government workers. If the New York legislature’s Democratic supermajority passes Kim’s bill, for the first time it would open up those contracts to public scrutiny.