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Friday, April 3, 2009, 5:40PM ET - U.S. Markets Closed. Dow Up 0.50% Nasdaq Up 1.20%
Arena Pharmaceuticals, Inc. (ARNA)At 4:00PM ET: 2.72  Down 0.24 (8.11%)  
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Key StatisticsGet Key Statistics for:
Data provided by Capital IQ, except where noted.
VALUATION MEASURES 
Market Cap (intraday)5:201.81M
Enterprise Value (3-Apr-09)3:189.28M
Trailing P/E (ttm, intraday):N/A
Forward P/E (fye 31-Dec-10) 1:N/A
PEG Ratio (5 yr expected):N/A
Price/Sales (ttm):22.39
Price/Book (mrq):1.87
Enterprise Value/Revenue (ttm)3:19.30
Enterprise Value/EBITDA (ttm)3:-0.85
FINANCIAL HIGHLIGHTS 
Fiscal Year
Fiscal Year Ends:31-Dec
Most Recent Quarter (mrq):31-Dec-08
Profitability
Profit Margin (ttm): N/A
Operating Margin (ttm):-2405.23%
Management Effectiveness
Return on Assets (ttm):-40.46%
Return on Equity (ttm):-93.55%
Income Statement
Revenue (ttm):9.81M
Revenue Per Share (ttm):0.133
Qtrly Revenue Growth (yoy):-40.90%
Gross Profit (ttm):1.29M
EBITDA (ttm):-222.75M
Net Income Avl to Common (ttm):-239.49M
Diluted EPS (ttm):-3.24
Qtrly Earnings Growth (yoy): N/A
Balance Sheet
Total Cash (mrq):110.13M
Total Cash Per Share (mrq):1.484
Total Debt (mrq):71.63M
Total Debt/Equity (mrq):N/A
Current Ratio (mrq):2.479
Book Value Per Share (mrq):1.587
Cash Flow Statement
Operating Cash Flow (ttm):-191.44M
Levered Free Cash Flow (ttm):-159.34M
View Financials (provided by EDGAR Online):
Income Statement - Balance Sheet
Cash Flow


TRADING INFORMATION 
Stock Price History
Beta:0.29
52-Week Change3:-57.47%
S&P500 52-Week Change3:-39.07%
52-Week High (12-Feb-09)3:7.42
52-Week Low (24-Oct-08)3:2.70
50-Day Moving Average3:4.58
200-Day Moving Average3:4.17
Share Statistics
Average Volume (3 month)3:2,794,650
Average Volume (10 day)3:7,101,140
Shares Outstanding5:74.19M
Float:63.93M
% Held by Insiders1:13.61%
% Held by Institutions1:85.10%
Shares Short (as of 10-Mar-09)3:14.97M
Short Ratio (as of 10-Mar-09)3:7.2
Short % of Float (as of 10-Mar-09)3:20.50%
Shares Short (prior month)3:12.47M
Dividends & Splits
Forward Annual Dividend Rate4:N/A
Forward Annual Dividend Yield4: N/A
Trailing Annual Dividend Rate3:N/A
Trailing Annual Dividend Yield3:NaN%
5 Year Average Dividend Yield4: N/A
Payout Ratio4: N/A
Dividend Date3:N/A
Ex-Dividend Date4:N/A
Last Split Factor (new per old)2:N/A
Last Split Date3:N/A


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See Key Statistics Help for definitions of terms used.
Abbreviation Guide: K = Thousands; M = Millions; B = Billions
mrq = Most Recent Quarter (as of 31-Dec-08)
ttm = Trailing Twelve Months (as of 31-Dec-08)
yoy = Year Over Year (as of 31-Dec-08)
lfy = Last Fiscal Year (as of 31-Dec-08)
fye = Fiscal Year Ending
1 = Data provided by Thomson; 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.