What does P/OCF mean?
A valuation metric that compares a company's market price to its level of annual operating cash flow. This is similar to the valuation measure of price-to-free cash flow but uses a looser measure of cash flow, by not deducting capital expenditures.
Operating cash flow, aka. "cash inflow from operating activities", is the amount of actual cash made by a company's business. It is similar to operating profit but without the accruals.
Stockopedia explains P/OCF...
In general, the higher this measure, the more expensive the company. There are several advantages that the P/CF holds over other investment multiples - most notably the fact that, in contrast to earnings, sales or even book value, companies have a harder time manipulating cash flow.