Intrinsic Value = Current (Normal) Earnings x (8.5 + (2 x Expected Annual Growth Rate)
- Current (Normal) Earnings = Trailing Twelve Months Earnings Per Share
- 8.5 = P/E base for a no-growth company
- Expected Annual Growth Rate = reasonably expected 7 to 10 year growth rate
以下是1210 大成 為例
以下是從2003到2013年這10年的稅後EPS (Column B) 與 EPS成長 (Column C),如C3 = B3 - B4 = 3.42 - 1.43 = 1.99
EPS成長率 = 每年度成長除以上一年度的稅後EPS,如D3 = C4 / B4 = 1.99 / 1.43 = 1.39 X 100 = 139%,過去10年EPS成長率 (Column D) 如下:
過去十年的平均成長率 = SUM(C3 : C12) / 10 = 0.49
Intrinsic Value (股票內在價值) = 最近一年的EPS X (8.5 + 2 X 平均成長率) = B2 X (8.5 + 2 X D14) = 3.42 X (8.5 + 2 X 0.49 ) = 32.42
但是,Graham還是強調,公式所算出的結果僅供參考,因為還有太多的因素會影響到未來的成長率、EPS與股價,如利率的高低會影響到股價,由於股票市場是不保本的,你的投資有可能會賠錢。當利率提高時,投資人就會開始躊躇,在風險與投資報酬的考量下,最後可能會決定把股票部分或全部賣掉,改放到銀行定存,這時候就會造成股價下跌。
Reference
[1] http://www.grahaminvestor.com/articles/how-to/finding-undervalued-stocks-3-using-intrinsic-value/
[2] http://en.wikipedia.org/wiki/Benjamin_Graham_formula
[3] http://goodinfo.tw/stockinfo/StockBzPerformance.asp?STOCK_ID=1210
[4] https://happyeric1120.wordpress.com/2007/06/12/%E5%88%A9%E7%8E%87%E3%80%81%E5%82%B5%E5%88%B8%E3%80%81%E8%88%87%E8%82%A1%E7%A5%A8%E4%B8%89%E8%80%85%E7%9A%84%E9%97%9C%E4%BF%82/