Yes, Public is a member of SIPC. The investments and cash in your Public account are protected (up to $500,000, which includes a $250,000 limit for cash) in the off chance Public goes under.[4] As of March 2022, it has 2.84 out of 5-star rating after 45 reviews on the Better Business Bureau.[5]\r Note: SIPC does not protect against the decline in value of your securities.[6]