Given the above information, calculate the cumulative abnormal return (CAR) for these stocks as a group. All of the stocks have a beta of 1 and no other announcements are made. (A negative answer should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.)

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Problem 14-1 Cumulative Abnormal Returns

Delta, United, and American Airlines announced purchases of planes on July 18 (7/18), February 12 (2/12), and October 7 (10/7), respectively.

  

Delta United American
Date Market Return Company Return Date Market Return Company Return Date Market Return Company Return
7/12 −.37 −.53 2/8 −.86 −1.12 10/1 .57 .24
7/13 .00 .27 2/9 −.96 −1.12 10/2 .47 .73
7/16 .79 .98 2/10 .47 .28 10/3 1.17 1.17
7/17 −.79 −.64 2/11 .67 2.41 10/6 .17 −1.72
7/18 −2.16 1.06 2/12 −.37 −.04 10/7 −2.27 −.45
7/19 −.91 −.59 2/15 1.17 2.18 10/8 .57 .57
7/20 −.96 −1.11 2/16 .57 .57 10/9 −.37 −.22
7/23 .77 .44 2/17 −.37 −.27 10/10 .37 −.22
7/24 .27 .16 2/18 .37 .14 10/13 .00 −.17

   

Given the above information, calculate the cumulative abnormal return (CAR) for these stocks as a group. All of the stocks have a beta of 1 and no other announcements are made. (A negative answer should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.)

 
Problem 14-1 Cumulative Abnormal Returns
Delta, United, and American Airlines announced purchases of planes on July 18 (7/18),
February 12 (2/12), and October 7 (10/7), respectively.
Date
7/12 -.37
.00
79
7/17 -.79
7/18 -2.16
7/13
7/16
7/19
7/20
7/23
7/24
Delta
Market Company
Return Return
-.53
.27
.98
-.91
-.96
-4
-3
-2
-1
0
1
2
3
4
77
27
Days from
announcement
-.64
1.06
-.59
-1.11
.44
16
United
Market Company
Return Return
Delta
Date
2/8 -.86
2/9 -.96
2/10
2/11
2/12 -.37
2/15
1.17
2/16
.57
2/17
-.37
2/18
37
.47
.67
-1.12
-1.12
.28
2.41
-.04
2.18
.57
-.27
14
American
Market Company
Return
Return
57
47
1.17
17
Date
10/1
10/2
10/3
10/6
10/7 -2.27
10/8
.57
10/9 -.37
10/10
10/13
Given the above information, calculate the cumulative abnormal return (CAR) for these
stocks as a group. All of the stocks have a beta of 1 and no other announcements are
made. (A negative answer should be indicated by a minus sign. Leave no cells blank -
be certain to enter "0" wherever required. Do not round intermediate calculations and
round your answers to 2 decimal places, e.g., 32.16.)
Abnormal returns (R; - RM)
United
American
.37
.00
.24
.73
1.17
-1.72
-.45
.57
-.22
-.22
-.17
Sum
Average abnormal
return
Cumulative
abnormal return
Transcribed Image Text:Problem 14-1 Cumulative Abnormal Returns Delta, United, and American Airlines announced purchases of planes on July 18 (7/18), February 12 (2/12), and October 7 (10/7), respectively. Date 7/12 -.37 .00 79 7/17 -.79 7/18 -2.16 7/13 7/16 7/19 7/20 7/23 7/24 Delta Market Company Return Return -.53 .27 .98 -.91 -.96 -4 -3 -2 -1 0 1 2 3 4 77 27 Days from announcement -.64 1.06 -.59 -1.11 .44 16 United Market Company Return Return Delta Date 2/8 -.86 2/9 -.96 2/10 2/11 2/12 -.37 2/15 1.17 2/16 .57 2/17 -.37 2/18 37 .47 .67 -1.12 -1.12 .28 2.41 -.04 2.18 .57 -.27 14 American Market Company Return Return 57 47 1.17 17 Date 10/1 10/2 10/3 10/6 10/7 -2.27 10/8 .57 10/9 -.37 10/10 10/13 Given the above information, calculate the cumulative abnormal return (CAR) for these stocks as a group. All of the stocks have a beta of 1 and no other announcements are made. (A negative answer should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required. Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.) Abnormal returns (R; - RM) United American .37 .00 .24 .73 1.17 -1.72 -.45 .57 -.22 -.22 -.17 Sum Average abnormal return Cumulative abnormal return
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