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Friday, April 13, 2007, 5:19PM ET - U.S. Markets Closed. Dow Up 0.47% Nasdaq Up 0.47%
American Tower Corp. (AMT)At 4:01PM ET: 39.54  Up 0.08 (0.20%)  
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Key StatisticsGet Key Statistics for:
Data provided by Capital IQ, except where noted.
VALUATION MEASURES 
Market Cap (intraday):16.61B
Enterprise Value (13-Apr-07)3:19.81B
Trailing P/E (ttm, intraday):627.62
Forward P/E (fye 31-Dec-08) 1:69.37
PEG Ratio (5 yr expected):2.96
Price/Sales (ttm):12.58
Price/Book (mrq):3.82
Enterprise Value/Revenue (ttm)3:15.04
Enterprise Value/EBITDA (ttm)3:23.197
FINANCIAL HIGHLIGHTS 
Fiscal Year
Fiscal Year Ends:31-Dec
Most Recent Quarter (mrq):31-Dec-06
Profitability
Profit Margin (ttm):2.09%
Operating Margin (ttm):21.75%
Management Effectiveness
Return on Assets (ttm):2.34%
Return on Equity (ttm):0.64%
Income Statement
Revenue (ttm):1.32B
Revenue Per Share (ttm):3.103
Qtrly Revenue Growth (yoy): N/A
Gross Profit (ttm):973.85M
EBITDA (ttm):854.05M
Net Income Avl to Common (ttm):28.34M
Diluted EPS (ttm):0.06
Qtrly Earnings Growth (yoy): N/A
Balance Sheet
Total Cash (mrq):304.25M
Total Cash Per Share (mrq):0.724
Total Debt (mrq):3.54B
Total Debt/Equity (mrq):0.808
Current Ratio (mrq):0.853
Book Value Per Share (mrq):10.325
Cash Flow Statement
Operating Cash Flow (ttm):620.74M
Levered Free Cash Flow (ttm):431.38M
View Financials (provided by EDGAR Online):
Income Statement - Balance Sheet
Cash Flow


TRADING INFORMATION 
Stock Price History
Beta:1.63
52-Week Change3:23.43%
S&P500 52-Week Change3:12.31%
52-Week High (20-Feb-07)3:41.31
52-Week Low (13-Jun-06)3:27.35
50-Day Moving Average3:38.78
200-Day Moving Average3:38.11
Share Statistics
Average Volume (3 month)3:2,499,500
Average Volume (10 day)3:1,663,750
Shares Outstanding:419.99M
Float:419.44M
% Held by Insiders4:0.13%
% Held by Institutions4:89.20%
Shares Short (as of 12-Mar-07)3:16.70M
Short Ratio (as of 12-Mar-07)3:5.6
Short % of Float (as of 12-Mar-07)3:4.00%
Shares Short (prior month)3:18.61M
Dividends & Splits
Forward Annual Dividend Rate5:N/A
Forward Annual Dividend Yield5: N/A
Trailing Annual Dividend Rate3:N/A
Trailing Annual Dividend Yield3:NaN%
5 Year Average Dividend Yield5: N/A
Payout Ratio5: N/A
Dividend Date3:N/A
Ex-Dividend Date5: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-06)
ttm = Trailing Twelve Months (as of 31-Dec-06)
yoy = Year Over Year (as of 31-Dec-06)
lfy = Last Fiscal Year (as of 31-Dec-06)
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 Computershare; 5 = Data provided by Hemscott Americas