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Arch Coal Inc (ACI)Ownership Data

Short Interest History (%)

This is the historical short interest of Arch Coal Inc, as measured by the Short Percentage Of Float.

Date Short Interest
March 13, 201527.36
February 27, 201528.24
February 13, 201527.37
January 30, 201526.83
January 15, 201524.23
December 31, 201424.21
December 15, 201422.37
November 28, 201422.21
November 14, 201422.23
October 31, 201421.75
October 15, 201425.14
September 30, 201422.7
September 15, 201420.75
August 29, 201420.22
August 15, 201418.46
July 31, 201417.13
July 15, 201418.36
June 30, 201418.07
June 13, 201416.73
May 30, 201415.01
May 15, 201415.52
April 30, 201415.55
April 15, 201416.72
March 31, 201417.9
March 14, 201416.75
February 28, 201420.37
February 14, 201419.83
January 31, 201418.35
January 15, 201418.67
December 31, 201320.35
December 13, 201320.5
November 29, 201322.49
November 15, 201322.47
October 31, 201318.58
October 15, 201317.7
September 30, 201315.88
September 13, 201317.24
August 30, 201318.87
August 15, 201319.94
July 31, 201319.4
July 15, 201318.64
June 28, 201318.37
June 14, 201316.37
May 31, 201314.44
May 15, 201313.93
April 30, 201314.71
April 15, 201316.37
March 28, 201314.27
March 15, 201314.54
February 28, 201321.26
February 15, 201320.44
January 31, 201316.93
January 15, 201320.07
December 31, 201220.2
December 14, 201220.78
November 30, 201223.55
November 15, 201224.12
October 31, 201227.8
October 15, 201231.29
September 28, 201228.08
September 14, 201232.23
August 31, 201227.12
August 15, 201228.65
July 31, 201229.42
July 13, 201231.16
June 29, 201226.65
June 15, 201219.25
May 31, 201224.44
May 15, 201224.43
April 30, 201226.1
April 13, 201221.98
March 30, 201217.4
March 15, 201217.55
February 29, 201220.3
February 15, 201216.49
January 31, 201213.44
January 13, 20129.66
December 30, 20119.63
December 15, 20119.23
November 30, 201110.3
November 15, 20117.95
October 31, 20119.04
October 14, 201110.36
September 30, 20119.23
September 15, 20117.29
August 31, 20115.01
August 15, 20114.97
July 29, 20114.96
July 15, 20116.15
June 30, 20115.48
June 15, 20116.05
May 31, 20118.87
May 13, 20117.23
April 29, 20116.37
April 15, 20117.14
March 31, 20117.72
March 15, 20116.12
February 28, 20117.35
February 15, 20117.84
January 31, 20118.19
January 14, 20119.58
December 31, 20108.44
December 15, 20109.31
November 30, 20107.75
November 15, 20108.3
October 29, 20106.45
October 15, 20106.17
September 30, 20106.22
September 15, 20106.64
August 31, 20107.14
August 13, 20106.73
July 30, 20105.77
July 15, 20105.63
June 30, 20105.61
June 15, 20106.23
May 28, 20106.41
May 14, 201010.02
April 30, 201011.75
April 15, 201012.98
March 31, 201013.08
March 15, 201013.2
February 26, 201012.02
February 12, 201010.16
January 29, 20109.71
January 15, 201011.12
December 31, 200911.13
December 15, 20099.82
November 30, 20099.78
November 13, 20099.36
October 30, 20099.38
October 15, 200912.1
September 30, 200913.48
September 15, 200913.72
August 31, 200912.97
August 14, 200912.58
July 31, 200913.46
July 15, 200913.32
June 30, 200912.12
June 15, 200910.32
May 29, 200911.04
May 15, 200910.97
April 30, 20099.89
April 15, 20098.21
March 31, 20097.38
March 13, 20098.45
February 27, 20097.09
February 13, 20094.33
January 30, 20094.73
January 15, 20094.89
December 31, 20085
December 15, 20084.54
November 28, 20084.87
November 14, 20085.51
October 31, 20086.46
October 15, 20086.93
September 30, 20086.09
September 15, 20087.33
August 29, 20087.86
August 15, 20088.71
July 31, 20086.19
July 15, 20087.84
June 30, 20087.97
June 13, 20088.08
May 30, 20088.28
May 15, 20089.53
April 30, 20088.13
April 15, 20089.02
March 31, 20089.36
March 14, 20089.93
February 29, 20088.15
February 15, 20086.5
January 31, 20087.67
January 15, 20088.79
December 31, 20078.99
December 11, 20077.99
November 27, 20077.2
November 9, 20078.01
October 26, 20079.08
October 10, 20078.43
September 25, 20078.87
September 11, 20079.21
August 10, 200711.09
July 10, 200712.8
June 12, 200711.09
May 10, 200711.95
April 10, 200711.24
March 12, 20079.81
February 12, 20078.75
January 9, 20078.91
December 12, 20068.14
November 10, 20068.65
October 10, 20067.56
September 12, 20066.31
August 10, 20065.66
July 11, 20065.76
June 12, 20066.37
May 10, 20067.84
April 10, 20069.21
March 10, 20069.56
February 10, 20068.39
January 10, 20069.66
December 12, 200513.03
November 10, 200510.4
October 11, 200511.63
September 12, 200511.39
August 10, 200512.87
July 12, 200513.36
June 10, 200513.37
May 10, 200513.88
April 12, 200513.63
March 10, 200512.34
February 10, 200511.09
January 11, 200511.28
December 10, 20048.81
November 10, 20047.65
October 12, 20047.67
September 10, 20049.88
August 10, 200411.71
July 12, 200410.55
June 9, 20048.77
May 11, 20047.67
April 12, 20048.05
March 10, 20047.9
February 10, 20045.78
January 12, 20044.51
December 10, 20035.14
November 11, 20036.84
October 10, 20036.58
September 10, 20036.53
August 12, 20036.63
July 10, 20037.64
June 10, 20038.56
May 12, 20039.82
April 10, 20038.8
March 11, 20039.79
February 11, 20038.44
January 10, 20035.24
December 10, 20025.52
November 12, 20024.91
October 10, 20025.39
September 10, 20025.68
August 12, 20026.84
July 10, 20026.87
June 11, 20025.58
May 10, 20023.96
April 10, 20023.61
March 12, 20023.25
February 12, 20023.29
January 10, 20022.66
December 11, 20012.46
November 12, 20013.36
October 10, 20013.36
September 5, 20012.94
August 10, 20012.8
July 10, 20012.62
June 12, 20013.45
May 10, 20013.34
April 9, 20012.48
March 12, 20011
February 12, 20010.86
January 9, 20010.5
December 12, 20000.25
November 10, 20000.25
October 10, 20000.17
September 12, 20000.19
August 10, 20000.07
July 11, 20000.19
June 12, 20000.23
May 10, 20000.2
April 11, 20000.2
March 10, 20000.06
February 10, 20000.06
January 11, 20000.03
December 10, 19990.04
November 10, 19990.03
October 12, 19990.05
September 10, 19990.08
August 10, 19990.07
July 12, 19990.07
June 10, 19990.11
May 11, 19990.11
April 12, 19990.21
March 10, 19990.17
February 9, 19990.1
January 8, 19990.08
December 8, 19980.09
November 6, 19980.09
October 8, 19980.07
September 8, 19980.03
August 7, 19980.03
July 8, 19980.03
April 7, 19980.01
March 6, 19980.01
February 6, 19980.01
January 8, 19980.1
August 8, 19970.01
July 8, 19970.02
June 6, 19970.17
May 8, 19970.04
April 8, 19970.17
March 7, 19970.09
February 7, 19970.09
January 8, 19970.1
December 6, 19960.11
November 8, 19960.16
October 8, 19960.19
September 6, 19960.21
August 8, 19960.59
July 8, 19960.97
June 7, 19960.26
May 8, 19960.27
April 8, 19960.28
March 8, 19960.27
February 8, 19960.04
January 8, 19960.08
December 8, 19950.12
November 8, 19950.11
October 6, 19950.09
September 8, 19950.1
August 8, 19950.11
May 8, 19950.05
April 6, 19950.09
March 8, 19950.09
February 8, 19950.08
January 6, 19950.08

Institutional Ownership History (%)

This the Institutional Ownership History of Arch Coal IncPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership
February 28, 201571
January 31, 201569
December 31, 201464
November 30, 201468
October 31, 201470
September 30, 201470
August 31, 201469
July 31, 201470
June 30, 201476
May 31, 201477
April 30, 201476
March 31, 201469
February 28, 201471
January 31, 201465
December 31, 201369
November 30, 201364
October 31, 201365
September 30, 201369
August 31, 201379
July 31, 201379
June 30, 201377
May 31, 201374
April 30, 201375
March 31, 201329
February 28, 201373
January 31, 201374
December 31, 201285
November 30, 201278
October 31, 201278
September 30, 201279
August 31, 201280
July 31, 201280
June 30, 201290
May 31, 201288
April 30, 201288
March 31, 201278
February 29, 201282
January 31, 201281
December 31, 201185
November 30, 201185
October 31, 201185
September 30, 201190
August 31, 201189
July 31, 2011100
June 30, 201194
May 31, 201192
April 30, 201194
March 31, 201192
February 28, 201192
January 31, 201191
December 31, 201088
November 30, 201088
October 31, 201085
September 30, 201087
August 31, 201090
April 30, 201095
March 31, 201096
February 28, 201094
January 31, 201092
December 31, 200994
November 30, 200994
October 31, 200985
September 30, 200978
August 31, 200978
July 31, 200987
June 30, 200983
May 31, 200983
April 30, 200979
March 31, 200980
February 28, 200981
January 31, 200990
December 31, 200888
November 30, 200888
October 31, 200891
September 30, 200887
August 31, 200887
July 31, 200887
June 30, 200894
May 31, 200894
April 30, 200894
March 31, 200898
February 29, 200898
January 31, 200898

Insider ownership (%)

This is the historical insider ownership of Arch Coal Inc. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.

Date Insider Ownership
April 30, 20081
March 31, 20081
February 29, 20081
January 31, 20081
December 31, 20071
November 30, 20071
October 31, 20071
September 30, 20071
August 31, 20071
July 31, 20071
June 30, 20071
May 31, 20071
April 30, 20071
March 31, 20071
February 28, 20071
January 31, 20071
December 31, 20061
November 30, 20061
October 31, 20061
September 30, 20061
June 30, 20061
May 31, 20061
April 30, 20061
March 31, 20061
February 28, 20061
January 31, 20061
December 31, 20051
November 30, 20051
October 31, 20051
September 30, 20051
August 31, 20051
July 31, 20051
June 30, 20051
May 31, 20051
April 30, 20051
March 31, 20051
February 28, 20051
January 31, 20051
December 31, 20041
November 30, 20041
October 31, 20041
September 30, 20041
August 31, 20041
July 31, 20041
June 30, 20041
May 31, 20041
April 30, 20041
March 31, 20041
February 29, 20041

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
John W. EavesPresident & COO, Director171,757less than 0.1%2015-02-23
James R. BoydDirector102,078less than 0.1%2011-08-08
Paul A. LangSenior VP - Operations99,416less than 0.1%2015-02-23
Robert J. MesseySenior Vice President & CFO60,170less than 0.1%2008-02-25
Douglas H. HuntDirector60,000less than 0.1%2014-12-19
Theodore D. SandsDirector51,000less than 0.1%2014-09-30
John T. DrexlerSr. V.P. and CFO41,217less than 0.1%2015-02-23
Robert G. JonesSr. VP-Law, Gen Counsel & Secy37,659less than 0.1%2015-02-23
Robert G. PotterDirector36,000less than 0.1%2011-08-19
David B. PeughVice President - Bus Dev35,763less than 0.1%2011-02-24

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
BlackRock Inc18,907,5402015-03-148.910.0024,768,877
Vanguard Group, Inc.15,013,5372015-03-147.070.0019,667,733
State Street Corp12,350,7272015-03-145.820.0016,179,452
ALLEGHANY CAPITAL Corp10,000,0002014-12-314.710.7017,800,000
Alleghany Insurance Holdings LLC10,000,0002014-09-304.710.7921,200,000
Schneider Capital Management Corp.8,644,8442015-03-144.070.0011,324,746
iShares Core S&P Small-Cap (AU)5,015,9152015-03-261.790.034,990,334
D.C. Capital Advisors, Ltd5,000,0002014-12-312.364.208,900,000
Vanguard Small Cap Index3,852,5512015-02-281.810.015,046,842
Vanguard Total Stock Mkt Idx3,704,0232015-02-281.740.004,852,270

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