ACO (ACO) has the following price history information. Looking back at ACO historical stock prices for the last five trading days, on May 05, 2014, ACO opened at $45.75, traded as high as $45.79 and as low as $45.73, and closed at $45.73. Trading volume was a total of 237.90K shares. On May 06, 2014, ACO opened at $45.74, traded as high as $45.75 and as low as $45.73, and closed at $45.73. Trading volume was a total of 175.90K shares. On May 07, 2014, ACO opened at $45.74, traded as high as $45.78 and as low as $45.73, and closed at $45.74. Trading volume was a total of 196.10K shares. On May 08, 2014, ACO opened at $45.75, traded as high as $45.77 and as low as $45.73, and closed at $45.73. Trading volume was a total of 195.90K shares. On May 09, 2014, ACO opened at $45.75, traded as high as $45.75 and as low as $45.74, and closed at $45.74. Trading volume was a total of 1.65M shares.

ACO Historical Stock Prices By Date:

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014201520162017201820192020202120222023

Below, we examine the compound annual growth rate — CAGR for short — of an investment into ACO shares, starting with a $10,000 purchase of ACO, and working forward through the historical stock price information to today.

Growth of $10,000.00 With Dividends Reinvested
Start date:	12/02/2013
End date:	05/09/2014
Start price/share:	$30.68
End price/share:	$45.74
Starting shares:	325.95
Ending shares:	329.55
Dividends reinvested/share:	$0.40
Total return:	50.74%
Annualized Gain:	117.95%
Starting investment:	$10,000.00
Ending investment:	$15,074.00
Years:	0.43
Growth of $10,000.00 Without Dividends Reinvested
Start date:	12/02/2013
End date:	05/09/2014
Start price/share:	$30.68
End price/share:	$45.74
Dividends collected/share:	$0.40
Total return:	50.39%
Annualized Gain:	117.15%
Starting investment:	$10,000.00
Ending investment:	$15,039.00
Years:	0.43

ACO Historical Price Range
Date	Open	High	Low	Close	Volume
05/05/2014	$45.75	$45.79	$45.73	$45.73	237.90K
05/06/2014	$45.74	$45.75	$45.73	$45.73	175.90K
05/07/2014	$45.74	$45.78	$45.73	$45.74	196.10K
05/08/2014	$45.75	$45.77	$45.73	$45.73	195.90K
05/09/2014	$45.75	$45.75	$45.74	$45.74	1.65M

About ACO

AMCOL International is focused on the development and application of minerals and technology products and services. Co. operates the following segments: performance materials, which mines, processes and distributes minerals and products for use in various markets, including metalcasting, pet care, laundry care, and drilling industries; construction technologies, which provides services relating to and processes and distributes clay-based and other products; energy services, which provides services and equipment rentals for onshore and offshore applications in the oil and natural gas industry; and transportation, which includes a long-haul trucking business and a freight brokerage business.

ACO Historical Closing Prices
Date	Close
05/05/2014	$45.73
05/06/2014	$45.73
05/07/2014	$45.74
05/08/2014	$45.73
05/09/2014	$45.74

Materials Historical Prices

ACO is categorized under the Materials sector; below are some other companies in the same sector: ACS Historical Stock Prices ADD Historical Stock Prices ADE Historical Stock Prices ADES Historical Stock Prices ADG Historical Stock Prices ADN Historical Stock Prices ADV Historical Stock Prices AEM Historical Stock Prices AEPI Historical Stock Prices AFA Historical Stock Prices Free ACO Email Alerts: Get Dividend Alerts Get SEC Filing Alerts

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