The number of trades and dollar value ;
17 Jan 2013 1,110 / $902,000
23 Jan 2013 254 / $217,000
28 Jan 2013 210 / $156,000
30 Jan 2013 115 / $67,000
31 Jan 2013 88 / $57,000
1 Feb 2013 81 / $37,000
4 Feb 2013 93 / $54,000
6 Feb 2013 39 / $12,800
7 Feb 2013 24 / $ 4,500 Snow storm in Boston?
8 Feb 2013 34 / $15,700
11 Feb 2013 24 / $18,500
12 Feb 2013 47 / $21,700 1,066,746 shares
13 FEB 2013 43 / $19,400 947,100
14 Feb 2013 22 / $ 7,600 inconsistent data
15 Feb 2013 15 / $ 5,400 287,676
21 Feb 2013 64 / $11,800 1,247,304
22 Feb 2013 21 / $ 7,500 840,468
25 Feb 2013 9 / $ 5,800 514,999
26 Feb 2013 25 / $ 8,400 812,350
27 Feb 2013 23 / $ 6,900 703,750
28 Feb 2013 12 / $ 4,400 486,074
1 Mar 2013 33 / $ 8,600 991,595
4 Mar 2013 11 / $ 1,400 156,765
5 Mar 2013 15 / $ 2,900 319,412