Walter Schloss was a direct student of Benjamin Graham, and is one of the "Super Investors" mentioned by Warren Buffett in his famous essay, The Super Investors of Graham-And-Doddsville. Schloss was born in 1916 and passed away in 2012 at the age of 95. Schloss never went to college and at 18 years old, he worked as a runner for on Wall Street at Carl M. Loeb & Co. One day, a partner of the company, Armand Erpf, recommended that Schloss read "Security Analysis" by Graham and David Dodd, which had been published a year earlier. The firm then paid for Schloss to take two courses with Graham.

Schloss eventually went to work for the Graham-Newton Partnership and in 1955 Schloss launched his own value fund. Schloss stopped actively managing other people's money in 2003. He then became a treasurer for the Freedom House, a non-profit group devoted to furthering democracy and human rights. From 1955 to 2002, by Schloss' estimate, his investments returned 16% per annum on average after fees, compared with 10% for the S&P 500 over the period.

Upon Schloss' death, Buffett, who was a close friend for more than 60 years released the following statement: "He had an extraordinary investment record, but even more important, he set an example for integrity in investment management. Walter never made a dime off of his investors unless they themselves made significant money. He charged no fixed fee at all and merely shared in their profits. His fiduciary sense was every bit the equal of his investment skills.".