How Stuff Works | Price history
Price change log
04/17/2021: $13.85
04/15/2021: $12.79
04/13/2021: $13.85
04/12/2021: $14.89
04/05/2021: $15.95
04/04/2021: $16.36
04/02/2021: $16.89
04/01/2021: $17.42
03/30/2021: $17.95
02/05/2021: $17.97
01/27/2021: $13.99
01/22/2021: $13.01
01/11/2021: $13.64
01/10/2021: $13.89
01/09/2021: $14.14
01/08/2021: $14.43
12/22/2020: $14.99
12/16/2020: $18.94
12/12/2020: $18.37
12/11/2020: $18.34
12/10/2020: $18.37
12/09/2020: $18.58
12/08/2020: $18.77
12/07/2020: $18.7
12/06/2020: $18.76
12/05/2020: $18.84
12/04/2020: $19.25
12/03/2020: $19.33
12/02/2020: $19.39
11/20/2020: $19.45
11/17/2020: $23.44
11/16/2020: $24.29
11/13/2020: $20.3
11/04/2020: $21.01
11/01/2020: $19.03
10/30/2020: $21.01
10/29/2020: $19.73
10/28/2020: $19.4
10/06/2020: $21.01
09/28/2020: $15.8
09/25/2020: $25.98
09/18/2020: $26.01
09/17/2020: $24.94
09/15/2020: $25.92
09/13/2020: $25.97
09/11/2020: $30.8
09/10/2020: $32.42
09/09/2020: $32.91
09/07/2020: $32.98
09/05/2020: $33.13
09/04/2020: $33.16
09/03/2020: $33.22
09/02/2020: $33.32
08/30/2020: $33.34
08/16/2020: $23.33
08/14/2020: $22.55
08/13/2020: $23.07
08/09/2020: $24.72
08/08/2020: $25.92
08/07/2020: $20
08/06/2020: $20.24
08/05/2020: $14.44
08/04/2020: $16.27
08/03/2020: $19.24
07/28/2020: $20.74
07/27/2020: $20.76
07/24/2020: $19.67
07/21/2020: $19.72
07/14/2020: $21.01
07/11/2020: $24.99
07/07/2020: $22.78
06/03/2020: $9.98
05/04/2020: $7.37
05/01/2020: $9
04/28/2020: $9.88
04/17/2020: $10
03/31/2020: $9
02/27/2020: $9.21
02/18/2020: $9.47
02/16/2020: $9.58
02/11/2020: $9.68
02/09/2020: $9.76
02/08/2020: $9.79
02/04/2020: $10
02/03/2020: $10.05
02/01/2020: $10.2
01/30/2020: $10.32
01/27/2020: $10.49
01/26/2020: $10.62
01/24/2020: $11.63
01/23/2020: $12.63
01/22/2020: $13.99
01/20/2020: $14.17
01/18/2020: $14.27
01/17/2020: $14.3
01/16/2020: $14.46
01/15/2020: $14.69
01/10/2020: $14.93
01/08/2020: $15.86
01/07/2020: $15.91
01/04/2020: $15.95
11/27/2019: $16
11/02/2019: $10.79
10/25/2019: $25
10/21/2019: $15.54
10/20/2019: $16.7
10/15/2019: $21
10/14/2019: $18.99
09/08/2019: $4.89
08/01/2019: $4.99
07/19/2019: $13
07/14/2019: $4.99
07/04/2019: $13
06/09/2019: $11.79
06/03/2019: $10.8
06/02/2019: $11.79
06/01/2019: $8.39
05/22/2019: $13
05/17/2019: $8.45
04/30/2019: $8.49
04/28/2019: $7.46
04/23/2019: $8.5
04/22/2019: $7.46
04/20/2019: $8.47
04/15/2019: $8.5
03/09/2019: $13
03/08/2019: $8.5
02/18/2019: $13
02/04/2019: $12
01/31/2019: $8.5
01/11/2019: $8.99
01/04/2019: $9.89
01/02/2019: $11.97
12/25/2018: $7.69
11/06/2018: $9.89
10/26/2018: $9.99
09/24/2018: $10.64
09/13/2018: $10.74
09/12/2018: $10.84
09/10/2018: $10.74
09/03/2018: $10.85
08/28/2018: $10.95
08/12/2018: $11.79
08/03/2018: $13.7
08/01/2018: $16.14
07/24/2018: $17.27
07/16/2018: $18.61
07/13/2018: $18.95
07/12/2018: $22.95
06/27/2018: $23.85
06/26/2018: $23.95
06/25/2018: $23.85
06/22/2018: $23.95
06/04/2018: $26.65
06/03/2018: $26.75
05/28/2018: $27.01
04/03/2018: $7.95
03/31/2018: $8.75
03/28/2018: $6.42
03/26/2018: $8.75
03/24/2018: $4.6
03/22/2018: $4.86
03/20/2018: $5.86
03/19/2018: $6.4
03/18/2018: $8.35
03/15/2018: $11.13
02/26/2018: $13.02
02/25/2018: $11.86
02/24/2018: $6.21
02/23/2018: $6.81
02/21/2018: $7.67
02/20/2018: $8.1
02/19/2018: $8.55
02/17/2018: $9.55
02/15/2018: $10.57
02/14/2018: $11.11
02/05/2018: $13.02
02/04/2018: $12.44
02/02/2018: $13.02
01/14/2018: $16.76
01/09/2018: $18.57
01/03/2018: $18.68
12/15/2017: $18.99
12/12/2017: $11.48
12/10/2017: $11.32
12/01/2017: $10.75
11/10/2017: $7.06
11/06/2017: $7.16
10/25/2017: $7.22
10/24/2017: $7.26
10/18/2017: $7.34
10/13/2017: $7.36
10/10/2017: $7.46
08/13/2017: $7.5
08/05/2017: $8.3
08/03/2017: $7.87
07/31/2017: $7.95
07/30/2017: $8.01
07/25/2017: $8.09
07/24/2017: $8.13
07/22/2017: $8.19
07/21/2017: $8.23
07/12/2017: $10
07/03/2017: $7.56
06/21/2017: $7.41
06/16/2017: $7.39
06/05/2017: $7.51
05/22/2017: $7.56
05/21/2017: $7.91
05/20/2017: $8.06
03/02/2017: $10
02/22/2017: $8.99
01/28/2017: $6.99
01/27/2017: $6.96
01/09/2017: $7.96
12/18/2016: $8.41
12/03/2016: $8.45
11/09/2016: $6.55
10/18/2016: $5.95
10/16/2016: $5.5
09/07/2016: $4.99
08/29/2016: $3.99
08/23/2016: $4.06
08/21/2016: $4.09
08/18/2016: $4.13
08/16/2016: $4.17
08/13/2016: $4.21
08/11/2016: $4.26
08/09/2016: $4.42
08/08/2016: $4.48
08/07/2016: $4.7
08/06/2016: $4.8
08/05/2016: $4.76
08/03/2016: $4.95
08/02/2016: $5.18
08/01/2016: $5.13
07/31/2016: $5.15
07/30/2016: $5.27
07/29/2016: $5.33
07/28/2016: $5.22
07/27/2016: $5.27
07/26/2016: $5.32
07/25/2016: $5.42
07/24/2016: $5.49
07/23/2016: $5.65
07/22/2016: $5.74
07/21/2016: $5.84
07/17/2016: $5.93
07/05/2016: $5.95
06/19/2016: $5.91
05/10/2016: $5.95
05/09/2016: $7.5
03/15/2016: $5.95
01/22/2016: $5
01/19/2016: $5.95
01/14/2016: $4.99
12/07/2015: $6.49
11/30/2015: $7.09
11/26/2015: $6.99
10/28/2015: $7.08
10/27/2015: $6.25
10/26/2015: $6.29
10/25/2015: $6.4
10/24/2015: $6.45
10/23/2015: $6.54
10/19/2015: $7.45
10/18/2015: $6.82
10/16/2015: $7.45
10/14/2015: $7.5
10/13/2015: $6.69
10/12/2015: $6.72
10/11/2015: $6.75
10/10/2015: $6.78
10/09/2015: $6.81
10/08/2015: $6.83
10/07/2015: $6.87
09/12/2015: $7.5
09/07/2015: $7
08/24/2015: $4.36
08/23/2015: $7.09
08/22/2015: $7
08/20/2015: $4.35
08/15/2015: $6.99
08/07/2015: $4.35
08/06/2015: $4.26
08/05/2015: $4.31
08/02/2015: $4.35
08/01/2015: $4.6
07/31/2015: $4.62
07/28/2015: $4.67
07/27/2015: $4.52
07/26/2015: $4.56
07/25/2015: $4.59
07/24/2015: $4.62
07/23/2015: $4.68
07/14/2015: $4.7
07/13/2015: $4.6
07/12/2015: $4.62
07/11/2015: $4.66
07/01/2015: $4.71
06/27/2015: $4.76
06/15/2015: $4.79
06/11/2015: $4.85
06/04/2015: $4.93
06/02/2015: $4.97
05/31/2015: $5.01
05/29/2015: $5.03
05/24/2015: $5.1
05/21/2015: $5.14
05/20/2015: $5.16
05/15/2015: $5.2
05/11/2015: $5.26
05/08/2015: $5.3
05/04/2015: $5.35
05/01/2015: $5.39
04/30/2015: $5.41
04/28/2015: $5.46
04/24/2015: $5.52
04/22/2015: $5.56
04/21/2015: $5.58
04/03/2015: $5.74
03/25/2015: $5.83
02/19/2015: $5.95
02/16/2015: $6.01
02/14/2015: $4.31
02/11/2015: $4.21
02/09/2015: $4.23
02/07/2015: $4.26
02/05/2015: $4.31
02/03/2015: $4.41
02/02/2015: $4.47
01/31/2015: $4.59
01/30/2015: $4.65
01/29/2015: $4.68
01/28/2015: $4.74
01/26/2015: $4.86
01/25/2015: $4.9
01/23/2015: $4.97
01/22/2015: $5.08
01/21/2015: $5.15
01/19/2015: $5.21
01/17/2015: $5.38
01/16/2015: $5.44
01/15/2015: $5.5
01/13/2015: $5.57
01/11/2015: $5.77
01/09/2015: $5.89
01/08/2015: $6
01/06/2015: $6.16
01/05/2015: $6.25
01/03/2015: $6.43
01/02/2015: $6.46
12/30/2014: $6.51
12/25/2014: $6.74
12/24/2014: $6.9
12/23/2014: $6.96
12/22/2014: $7.05
12/21/2014: $7.08
12/13/2014: $7.1
12/12/2014: $7.14
12/11/2014: $7.18
12/09/2014: $7.22
12/07/2014: $7.27
12/06/2014: $7.37
12/03/2014: $7.48
12/02/2014: $7.51
12/01/2014: $7.54
11/28/2014: $7.57
11/24/2014: $7.63
11/23/2014: $7.68
11/17/2014: $7.88
11/16/2014: $7.92
11/05/2014: $7.95
11/02/2014: $6.49
10/12/2014: $4.81
10/11/2014: $4.83
09/28/2014: $5.36
09/26/2014: $5.54
09/24/2014: $5.67
09/21/2014: $5.91
09/20/2014: $5.96
09/19/2014: $6.02
09/13/2014: $6.4
09/11/2014: $6.6
09/09/2014: $6.8
09/06/2014: $7.05
08/26/2014: $7.08
08/15/2014: $7.25
07/19/2014: $7.85
05/31/2014: $7.63
05/17/2014: $8.45
04/28/2014: $7.92
04/24/2014: $8.48
04/23/2014: $8.56
04/21/2014: $8.67
04/19/2014: $8.8
04/17/2014: $8.91
04/15/2014: $9
04/11/2014: $9.18
04/05/2014: $7.92
03/30/2014: $5.35
03/29/2014: $7.92
03/20/2014: $5.35
03/18/2014: $5.01
03/16/2014: $5.06
03/14/2014: $5.18
03/13/2014: $5.2
03/11/2014: $5.26
03/09/2014: $5.31
03/07/2014: $5.26
03/04/2014: $5.35
02/11/2014: $7.92
02/03/2014: $7.65
01/10/2014: $7.35
12/19/2013: $4.99
12/17/2013: $7
12/01/2013: $4.99
10/25/2013: $7
10/23/2013: $7.35
09/27/2013: $6.95
09/19/2013: $6.79
09/13/2013: $6.95
08/24/2013: $7.35
08/19/2013: $7.45
07/06/2013: $7.92
07/04/2013: $7.88
06/28/2013: $7.97
06/23/2013: $7.99
06/15/2013: $8.57
05/30/2013: $8.56
05/28/2013: $8.54
05/26/2013: $8.57
05/16/2013: $8.65
05/11/2013: $8.69
05/10/2013: $9.44
05/06/2013: $8.96
05/04/2013: $9
05/02/2013: $9.08
04/30/2013: $9.12
04/29/2013: $9.2
04/28/2013: $9.24
04/27/2013: $9.28
04/25/2013: $9.36
04/24/2013: $9.44
04/23/2013: $9.47
04/21/2013: $10.65
04/18/2013: $9.08
04/17/2013: $8.71
04/16/2013: $8.83
04/15/2013: $7.27
04/12/2013: $7.22
04/10/2013: $2.83
04/09/2013: $2.88
04/08/2013: $2.9
04/07/2013: $7.17
04/06/2013: $7.2
04/04/2013: $7.27
04/01/2013: $6.4
03/31/2013: $5.69
03/29/2013: $6.4
03/28/2013: $5.69
03/27/2013: $6.69
03/26/2013: $6.9
03/24/2013: $5.69
03/23/2013: $6.4
03/21/2013: $5.69
03/19/2013: $6.4
03/16/2013: $5.69
03/15/2013: $6.15
03/13/2013: $5.69
03/12/2013: $6.15
03/10/2013: $5.69
03/09/2013: $6.4
03/05/2013: $8.93
03/02/2013: $9.08
02/27/2013: $6
02/03/2013: $5
01/23/2013: $6
01/21/2013: $9.22
01/19/2013: $9.25
01/17/2013: $9.28
01/16/2013: $9.31
01/15/2013: $8.75
01/12/2013: $8.84
01/11/2013: $8.87
01/10/2013: $8.94
01/09/2013: $9
01/08/2013: $9.12
01/07/2013: $9.24
01/06/2013: $9.33
01/05/2013: $9.45
01/04/2013: $9.66
01/03/2013: $9.78
01/02/2013: $9.84
01/01/2013: $9.89
12/29/2012: $9.94
12/23/2012: $9.76
12/22/2012: $9.79
12/21/2012: $9.45
12/20/2012: $8.98
10/17/2012: $7.95
10/03/2012: $5.88
09/25/2012: $7.95
09/09/2012: $5.88
08/25/2012: $3.99
07/22/2012: $5.88
07/17/2012: $5.95
07/05/2012: $5.75
06/18/2012: $5.95
05/25/2012: $5.4
05/19/2012: $5.25
05/17/2012: $5.41
05/15/2012: $5.25
05/12/2012: $5.43
05/06/2012: $5.6
05/05/2012: $5.77
04/19/2012: $5.95
04/13/2012: $6.2
04/11/2012: $6.95
04/07/2012: $6.2
03/30/2012: $7.25
03/20/2012: $6.2
03/16/2012: $5.63
03/11/2012: $5.93
03/05/2012: $6.59
03/02/2012: $7.31
02/27/2012: $7.68
02/24/2012: $7.99
01/23/2012: $8.79
01/18/2012: $8.84
01/10/2012: $8.92
01/04/2012: $8.99
01/02/2012: $9.12
12/24/2011: $9.2
12/21/2011: $9.23
12/14/2011: $9.65
10/11/2011: $9.75
09/01/2011: $9.95
08/10/2011: $10
07/31/2011: $5.98
07/29/2011: $6.48
07/25/2011: $6.39
07/19/2011: $6.52
07/18/2011: $6.55
07/16/2011: $6.59
07/15/2011: $6.61
07/13/2011: $6.67
07/06/2011: $6.75
07/03/2011: $7.09
06/30/2011: $7.2
06/29/2011: $7.24
06/28/2011: $7.27
06/27/2011: $7.31
06/26/2011: $7.33
06/24/2011: $7.43
06/22/2011: $7.45
06/20/2011: $7.52
06/17/2011: $7.63
06/15/2011: $7.73
06/14/2011: $7.76
06/11/2011: $7.89
06/09/2011: $7.98
06/08/2011: $8.04
06/07/2011: $8.06
06/05/2011: $8.12
03/24/2011: $8.25