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This valuation method assumes that the stock valuation will revert to its historical mean in terms of Price/Sales Ratio. The reason we use P/S Ratio instead of P/E Ratio or P/B Ratio is because Price/Sales Ratio is independent of profit margin, and can be applied to a broader range of situations.
Median P/S Value is calculated as trailing twelve months (TTM) revenue per share times 10-Year median P/S ratio. Westlake Chemical Corp's revenue per share for the trailing twelve months (TTM) ended in Mar. 2014 was $29.33. Westlake Chemical Corp's 10-Year median P/S ratio is 0.80. Therefore, the Median P/S Value for today is $23.46.
As of today, Westlake Chemical Corp's share price is $89.78. Westlake Chemical Corp's median P/S value is $23.46. Therefore, Westlake Chemical Corp's Price to Median P/S Value Ratio for today is 3.80.
During the past 13 years, the highest Price to Median P/S Value Ratio of Westlake Chemical Corp was 2.82. The lowest was 0.31. And the median was 0.96.
Westlake Chemical Corp's Median P/S Value for today is calculated as
|Median P/S Value||=||Total Annual Sales / Shares Outstanding||*||10-Year Median P/S Ratio|
|=||Revenue per Share (TTM)||*||10-Year Median P/S Ratio|
10-Year Median P/S Ratio is 0.80.
Westlake Chemical Corp's revenue per share for the trailing twelve months (TTM) ended in Mar. 2014 was 7.02 (Jun. 2013 ) + 7.5 (Sep. 2013 ) + 7.12 (Dec. 2013 ) + 7.69 (Mar. 2014 ) = $29.33.
It also assumes that over time the profit margin is constant. If a company increases its profit margin to a sustainable level, this value might under-estimate its value. If it has permanent declined profit margins, this may over-estimate the companys value.
Westlake Chemical Corp's Price to Median P/S Value Ratio for today is calculated as
|Price to Median P/S Value||=||Share Price||/||Median P/S Value|
Westlake Chemical Corp Annual Data
Westlake Chemical Corp Quarterly Data