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Data I/O Corp (DAIO)Ownership Data

Short Interest History (%)

This is the historical short interest of Data I/O Corp, as measured by the Short Percentage Of Float.

Date Short Interest
January 30, 20150.11
January 15, 20150.13
December 31, 20140.15
December 15, 20140.15
November 28, 20140.28
November 14, 20140.1
October 31, 20140.11
October 15, 20140.12
September 30, 20140.1
September 15, 20140.22
August 29, 20140.14
August 15, 20140.14
July 31, 20140.11
July 15, 20140.1
June 30, 20140.1
June 13, 20140.1
May 30, 20140.12
May 15, 20140.28
April 30, 20140.17
April 15, 20140.1
March 31, 20140.11
March 14, 20140.15
February 28, 20140.15
February 14, 20140.22
January 31, 20140.2
January 15, 20140.14
December 31, 20130.22
December 13, 20130.13
November 29, 20130.14
November 15, 20130.11
October 31, 20130.12
October 15, 20130.1
September 30, 20130.12
September 13, 20130.21
August 30, 20130.1
August 15, 20130.1
July 31, 20130.12
July 15, 20130.12
June 28, 20130.14
June 14, 20130.15
May 31, 20130.12
May 15, 20130.11
April 30, 20130.11
April 15, 20130.01
March 28, 20130.02
March 15, 20130.03
February 28, 20130.09
February 15, 20130.08
January 31, 20130.04
January 15, 20130.08
December 31, 20120.07
December 14, 20120.05
November 30, 20120.06
November 15, 20120.07
October 31, 20120.08
October 15, 20120.04
September 28, 20120.11
September 14, 20120.1
August 31, 20120.09
August 15, 20120.04
July 31, 20120.05
July 13, 20120.06
June 29, 20120.3
June 15, 20120.32
May 31, 20120.07
May 15, 20120.04
April 30, 20120.08
April 13, 20120.09
March 30, 20120.09
March 15, 20120.13
February 29, 20120.03
February 15, 20120.03
January 31, 20120.04
January 13, 20120.03
December 30, 20110.03
December 15, 20110.05
November 30, 20110.03
November 15, 20110.02
October 31, 20110.05
October 14, 20110.04
September 30, 20110.06
September 15, 20110.09
August 31, 20110.11
August 15, 20110.12
July 29, 20110.11
July 15, 20110.05
June 30, 20110.05
June 15, 20110.06
May 31, 20110.05
May 13, 20110.06
April 29, 20110.09
April 15, 20110.06
March 31, 20110.07
March 15, 20110.04
February 28, 20110.03
February 15, 20110.04
January 31, 20110.11
January 14, 20110.06
December 31, 20100.06
December 15, 20100.05
November 30, 20100.08
November 15, 20100.09
October 29, 20100.09
October 15, 20100.05
September 30, 20100.05
September 15, 20100.07
August 31, 20100.05
August 13, 20100.04
July 30, 20100.06
July 15, 20100.09
June 30, 20100.08
June 15, 20100.04
May 28, 20100.02
May 14, 20100.03
April 30, 20100.03
April 15, 20100.05
March 31, 20100.04
March 15, 20100.01
February 26, 20100.01
February 12, 20100.01
January 15, 20100.02
December 31, 20090.03
December 15, 20090.01
November 13, 20090.01
October 30, 20090.07
October 15, 20090.02
September 30, 20090.03
September 15, 20090.04
July 31, 20090.02
July 15, 20090.01
June 30, 20090.03
April 15, 20090.01
March 31, 20090.01
March 13, 20090.13
February 27, 20090.04
February 13, 20090.05
January 30, 20090.05
January 15, 20090.05
December 31, 20080.16
December 15, 20080.05
November 28, 20080.05
November 14, 20080.07
October 31, 20080.12
October 15, 20080.05
September 30, 20080.02
September 15, 20080.11
August 29, 20080.08
August 15, 20080.11
July 31, 20080.07
July 15, 20080.18
June 30, 20080.19
June 13, 20080.18
May 30, 20080.2
May 15, 20080.2
April 30, 20080.08
April 15, 20080.26
March 31, 20080.12
March 14, 20080.08
February 29, 20080.3
February 15, 20080.19
January 31, 20080.25
January 15, 20080.35
December 31, 20070.35
December 11, 20070.11
November 27, 20070.42
November 9, 20070.4
October 26, 20070.77
October 10, 20070.11
September 25, 20070.07
September 11, 20070.08
August 10, 20070.07
July 10, 20070.02
June 12, 20070.03
May 10, 20070.04
April 10, 20070.02
March 12, 20070.01
February 12, 20070.01
December 12, 20060.05
November 10, 20060.01
October 10, 20060.01
August 10, 20060.08
July 11, 20060.17
June 12, 20060.12
May 10, 20061.24
April 10, 20060.19
March 10, 20060.17
February 10, 20060.38
January 10, 20060.33
December 12, 20050.86
November 10, 20050.03
October 11, 20050.01
September 12, 20050.02
August 10, 20050.06
July 12, 20050.02
June 10, 20050.04
May 10, 20050.05
April 12, 20050.01
March 10, 20050.01
February 10, 20050.01
January 11, 20050.05
December 10, 20040.09
November 10, 20040.01
October 12, 20040.01
September 10, 20040.04
July 12, 20040.01
June 9, 20040.03
April 12, 20040.02
March 10, 20040.05
February 10, 20040.05
January 12, 20040.02
December 10, 20030.02
November 11, 20030.14
October 10, 20030.06
August 12, 20030.01
July 10, 20030.01
May 12, 20030.02
April 10, 20030.02
March 11, 20030.1
January 10, 20030.02
August 12, 20020.04
June 11, 20020.02
May 10, 20020.01
March 12, 20020.01
January 10, 20020.01
November 12, 20010.01
July 10, 20010.01
April 9, 20010.01
March 12, 20010.04
February 12, 20010.05
January 9, 20010.04
December 12, 20000.04
November 10, 20000.04
October 10, 20000.05
September 12, 20000.04
August 10, 20000.05
July 11, 20000.04
June 12, 20000.07
May 10, 20000.04
April 11, 20000.06
March 10, 20000.06
February 10, 20000.31
January 11, 20000.06
December 10, 19990.04
November 10, 19990.03
October 12, 19990.02
September 10, 19990.01
July 12, 19990.05
February 9, 19990.01
January 8, 19990.02
December 8, 19980.05
November 6, 19980.07
September 8, 19980.02
August 7, 19980.07
July 8, 19980.06
June 8, 19980.18
May 8, 19980.05
April 7, 19980.04
March 6, 19980.06
February 6, 19980.07
January 8, 19980.05
December 8, 19970.09
November 7, 19970.08
October 8, 19970.08
September 8, 19970.07
August 8, 19970.05
July 8, 19970.06
June 6, 19970.12
May 8, 19970.12
April 8, 19970.09
March 7, 19970.14
February 7, 19970.07
January 8, 19970.08
December 6, 19960.11
November 8, 19960.07
October 8, 19960.12
September 6, 19960.08
August 8, 19960.15
July 8, 19960.18
June 7, 19960.11
May 8, 19960.16
April 8, 19960.19
March 8, 19960.28
February 8, 19960.25
January 8, 19960.36
December 8, 19950.35
November 8, 19950.39
October 6, 19950.39
September 8, 19950.53
August 8, 19950.43
July 7, 19950.6
June 8, 19950.4
May 8, 19950.18
April 6, 19950.09
March 8, 19950.05
February 8, 19950.04
January 6, 19950.08

Institutional Ownership History (%)

This the Institutional Ownership History of Data I/O CorpPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership
January 31, 201519
December 31, 201419
November 30, 201424
October 31, 201424
September 30, 201424
August 31, 201424
July 31, 201424
June 30, 201431
May 31, 201431
April 30, 201431
March 31, 201423
February 28, 201418
January 31, 201418
December 31, 201323
November 30, 201318
October 31, 201318
September 30, 201318
August 31, 201317
July 31, 201317
June 30, 201318
May 31, 201317
April 30, 201317
March 31, 20137
February 28, 201317
January 31, 201317
December 31, 201217
November 30, 201226
October 31, 201224
September 30, 201223
August 31, 201232
July 31, 201232
June 30, 201232
May 31, 201230
April 30, 201230
March 31, 201253
February 29, 201251
January 31, 201250
December 31, 201150
November 30, 201150
October 31, 201150
September 30, 201146
August 31, 201146
July 31, 201147
June 30, 201144
May 31, 201144
April 30, 201144
March 31, 201144
February 28, 201144
January 31, 201136
December 31, 201037
November 30, 201037
October 31, 201039
September 30, 201040
August 31, 201041
July 31, 201041
June 30, 201041
May 31, 201045
April 30, 201045
March 31, 201045
February 28, 201027
January 31, 201027
December 31, 200927
November 30, 200927
October 31, 200926
September 30, 200946
August 31, 200946
July 31, 200947
June 30, 200947
May 31, 200947
April 30, 200947
March 31, 200947
February 28, 200948
January 31, 200945
December 31, 200845
November 30, 200845
October 31, 200841
September 30, 200830
August 31, 200830
July 31, 200830
June 30, 200831
May 31, 200831
April 30, 200831
March 31, 200831
February 29, 200831
January 31, 200831

Insider ownership (%)

This is the historical insider ownership of Data I/O Corp. 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
January 31, 201510
December 31, 20149
November 30, 201410
October 31, 201410
September 30, 201411
August 31, 201411
July 31, 201411
June 30, 201411
May 31, 201411
March 31, 20148
February 28, 20148
January 31, 20148
December 31, 20138
November 30, 20138
October 31, 20138
September 30, 20138
August 31, 20138
July 31, 20138
June 30, 20138
May 31, 20138
April 30, 20137
March 31, 20137
January 31, 20137
November 30, 20127
October 31, 20127
September 30, 20126
August 31, 20126
July 31, 20126
June 30, 20126
May 31, 20126
April 30, 20126
March 31, 20125
February 29, 20125
January 31, 20125
December 31, 20115
November 30, 20115
October 31, 20115
September 30, 20115
August 31, 20115
July 31, 20116
June 30, 20116
May 31, 20115
April 30, 20115
March 31, 20115
February 28, 20115
January 31, 20115
December 31, 20105
November 30, 20105
October 31, 20105
September 30, 20105
August 31, 20105
July 31, 20105
June 30, 20105
May 31, 20105
April 30, 20105
March 31, 20105
February 28, 20105
January 31, 20105
December 31, 20095
November 30, 20095
October 31, 20095
September 30, 20094
August 31, 20094
July 31, 20094
June 30, 20094
May 31, 20094
April 30, 20094
March 31, 20094
February 28, 20094
January 31, 20094
December 31, 20084
November 30, 20084
October 31, 20084
September 30, 20084
August 31, 20084
July 31, 20084
June 30, 20084
May 31, 20084
April 30, 20084
March 31, 20084
February 29, 20084
January 31, 20084
December 31, 20073
November 30, 20073
October 31, 200710
September 30, 200710
August 31, 200710
July 31, 200716
June 30, 200716
May 31, 200716
April 30, 200716
March 31, 200716
February 28, 200716
January 31, 200716
December 31, 200616
November 30, 200616
October 31, 200616
September 30, 200616
June 30, 200616
May 31, 200616
April 30, 200616
March 31, 200616
February 28, 200626
January 31, 200626
December 31, 200528
November 30, 200530
October 31, 200531
September 30, 200531
August 31, 200531
July 31, 200532
June 30, 200532
May 31, 200532
April 30, 200532
March 31, 200532
February 28, 200530
January 31, 200531
December 31, 200431
November 30, 200431
October 31, 200423
September 30, 200422
August 31, 200424
July 31, 200424
June 30, 200425
May 31, 200425
April 30, 200425
March 31, 200417
February 29, 200417

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Joel S. HatlenCHIEF FINANCIAL OFFICER196,7882.5%2014-09-10
Frederick R. HumeN/A185,8642.36%2012-07-31
Anthony AmbrosePresident138,1211.76%2014-10-25
Dr. Paul A. GaryDirector69,4610.88%2010-10-19
William R. WalkerN/A34,2000.44%2012-05-10
Mr. Douglas W. BrownDirector27,0000.34%2014-05-19
Harald A. WeigeltVice President World Wide Sale24,8890.32%2008-04-23
Steven M. QuistN/A21,8760.28%2012-05-10
Brian T. CrowleyDirector21,4000.27%2014-05-30
Rajeev GulatiN/A20,0000.25%2014-05-19

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Penbrook Management LLC524,4162014-12-316.671.601,773,000
Dimensional Fund Advisors, Inc.302,8342014-12-313.890.001,033,000
Renaissance Technologies Corp272,6002014-12-313.470.00921,000
Vanguard Group, Inc.256,4092014-12-313.290.00874,000
Vanguard Extended Market Index Fund180,0662015-01-312.290.00567,208
Vanguard Total Stock Mkt Idx78,5432015-01-311.000.00247,410
DFA U.S. Micro Cap Portfolio77,0002014-12-310.990.01262,570
DFA US Small Cap Value II Portfolio74,2902014-12-310.950.00253,329
Royal Bank Of Canada34,7512014-12-310.440.00117,003
California Public Employees Retrmnt Sys27,6002014-12-310.350.0093,288

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