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 Dow Down 0.35% Nasdaq Up 0.18%
Merck & Co. Inc. (MRK)At 9:41AM EST: 38.57  Down 0.21 (0.54%)  

Key StatisticsGet Key Statistics for:
Data provided by Capital IQ, except where noted.
Valuation Measures 
Market Cap (intraday)5:117.56B
Enterprise Value (Jan 27, 2012)3:120.76B
Trailing P/E (ttm, intraday):28.19
Forward P/E (fye Dec 31, 2012)1:10.07
PEG Ratio (5 yr expected)1:2.29
Price/Sales (ttm):2.47
Price/Book (mrq):2.15
Enterprise Value/Revenue (ttm)3:2.52
Enterprise Value/EBITDA (ttm)6:6.37
Financial Highlights 
Fiscal Year
Fiscal Year Ends:Dec 31
Most Recent Quarter (mrq):Sep 30, 2011
Profitability
Profit Margin (ttm):8.84%
Operating Margin (ttm):25.87%
Management Effectiveness
Return on Assets (ttm):7.22%
Return on Equity (ttm):7.52%
Income Statement
Revenue (ttm):47.85B
Revenue Per Share (ttm):15.54
Qtrly Revenue Growth (yoy):8.10%
Gross Profit (ttm):27.59B
EBITDA (ttm)6:18.96B
Net Income Avl to Common (ttm):4.22B
Diluted EPS (ttm):1.37
Qtrly Earnings Growth (yoy):394.70%
Balance Sheet
Total Cash (mrq):15.58B
Total Cash Per Share (mrq):5.11
Total Debt (mrq):18.15B
Total Debt/Equity (mrq):31.51
Current Ratio (mrq):2.06
Book Value Per Share (mrq):18.07
Cash Flow Statement
Operating Cash Flow (ttm):12.69B
Levered Free Cash Flow (ttm):11.83B
View Financials
Income Statement - Balance Sheet - Cash Flow

Trading Information 
Stock Price History
Beta:0.54
52-Week Change3:17.27%
S&P500 52-Week Change3:3.30%
52-Week High (Jan 19, 2012)3:39.43
52-Week Low (Aug 9, 2011)3:29.47
50-Day Moving Average3:37.69
200-Day Moving Average3:34.37
Share Statistics
Avg Vol (3 month)3:16,302,300
Avg Vol (10 day)3:14,581,800
Shares Outstanding5:3.05B
Float:3.05B
% Held by Insiders1:0.03%
% Held by Institutions1:74.80%
Shares Short (as of Jan 13, 2012)3:31.80M
Short Ratio (as of Jan 13, 2012)3:2.10
Short % of Float (as of Jan 13, 2012)3:1.20%
Shares Short (prior month)3:27.35M
Dividends & Splits
Forward Annual Dividend Rate4:1.68
Forward Annual Dividend Yield4:4.30%
Trailing Annual Dividend Yield3:1.56
Trailing Annual Dividend Yield3:4.00%
5 Year Average Dividend Yield4:3.90%
Payout Ratio4:110.00%
Dividend Date3:Jan 8, 2012
Ex-Dividend Date4:Dec 13, 2011
Last Split Factor (new per old)2:2:1
Last Split Date3:Feb 17, 1999

See Key Statistics Help for definitions of terms used.
Abbreviation Guide: K = Thousands; M = Millions; B = Billions
mrq = Most Recent Quarter (as of Sep 30, 2011)
ttm = Trailing Twelve Months (as of Sep 30, 2011)
yoy = Year Over Year (as of Sep 30, 2011)
lfy = Last Fiscal Year (as of Dec 31, 2010)
fye = Fiscal Year Ending
1 Data provided by Thomson Reuters
2 Data provided by EDGAR Online
3 Data derived from multiple sources or calculated by Yahoo! Finance
4 Data provided by Morningstar, Inc.
5 Shares outstanding is taken from the most recently filed quarterly or annual report and Market Cap is calculated using shares outstanding.
6 EBITDA is calculated by Capital IQ using methodology that may differ from that used by a company in its reporting

Currency in USD.