The SIPC Fund was established in 1970. The target level of the Fund is set out in SIPC’s Bylaws and has increased from an initial target of $150 million in 1970, to the current target of $5.0 billion as measured in unrestricted net assets.
SIPC member assessments and interest on U.S. Government Securities bought by SIPC are deposited into the Fund. When the Fund falls below a target level, SIPC members are assessed on a percentage of their revenues.
SIPC also has a $2.5 billion line of credit with the U.S. Treasury.