Each financial ratio benchmark in RMA Anniual Studies has three points (Median Upper, Median, Median Lower) that divide an array of values into four equal groups called quartiles. So if a company’s value is equal or above the median upper, then it falls into the upper quartile. If it falls between the median upper and the median, then the company ranks in the upper middle quartile. This helps you analyze how a company compares to others of similar size.
D&B Industry Norms & Key Business Ratios
Ref HF 5681 .R25 .I525
MORNINGSTAR Mutual Funds
Ref HG 4530 .M8 (through Dec. 2012)
RMA Annual Statement Studies
Ref HF 5681 .B2 .R6