How to Screen for Ben Graham Net Current Asset Value Bargains

In Brief
NCAV investing is a bargain investing strategy involving buying stocks when they are selling for less than you’re likely to receive even in the harshest firesale of its assets. 
Background
Benjamin Graham was the tutor of Warren Buffett and the father of security analysis. He was a very successful investor and left behind a ream of literature for both professional and private investors. One of his most famous strategies was to buy well diversified portfolios of companies that were selling at bargain basement prices. His definition of what was a bargain would vary, but in his book “Security Analysis” he defined one such methodology as follows.
He reasoned that a company must be worth more than what equity investors would receive in a firesale of its most easily sellable assets. In a firesale of assets it may not be possible to sell fixed assets such as property or equipment quickly so he excluded them from his calculation. He added up all the current assets (cash, stocks and debtors) and subtracted from them everything that the company owed (i.e. all debts as they will need to be reimbursed first). The leftover value he called the…