1. For this question, refer to the third tab, Trader Activity. Suppose that 9/1 is the first day of trading for this particular contract so that there was no open interest on 8/31. This table lists the members of a hypothetical clearing house and their trading activity. The ten traders are identified in the first column, with other columns representing a days worth of trading. Find the volume and open interest at the end of 9/14. You can assume that on any particular day, a trader makes trades in only one direction, so that the daily numbers represent that traders volume.

9/23/20 9/8/20 6 29 81 49 2 Trader ID 73470 154857 226111 343311 436358 453227 538815 567545 809026 909339 9/1/20 (95) 98 54 119 (115) (100) 67 (118) 9/2/20 (20) 42 (54) (112) (99) 85 (30) 60 (29) 157 9/3/20 (62) (75) (10) (59) 100 (94) 37 47 (9) 125 9/4/20 (70) (50) (84) 47 (6) 64 49 (97) 4 92 9 9/9/20 80 (77) (38) (97) (16) (10) 9 (76) (20) 245 9/10/20 9/11/20 12 (78) 5 31 (1) (17) 90 103 (23) (66) (86) (67) 57 75 (43) (53) 44 (80) 9/14/20 9/15/20 107 (82) 33 (4) 3 91 (111) (14) (6) (44) 40 (91) 37 9 54 32 68 (149) 16 9/16/20 2 21 (88) 70 (7) 7 (25) (8) 99 (71) 16 9/17/20 9/18/20 9/21/20 (55) (4) (86) (72) 16 (95) 28 (9) 89 (1) (91) 111 (12) (6) (43) (58) 5 22 7 57 49 (87) 91 (8) 49 79 16 150 (142) 9/22/20 (14) (89) (1) 109 76 (54) 77 50 40 (194) 9/24/20 (66) (88) 111 79 (40) 110 (41) (80) 78 (49) (4) (4) 111 43 (39) (85) (100) 9/25/20 91 29 (61) 69 118 35 (16) 14 (101) (178) 20 (23) (27) 57 (165) 61 11 41 29 143 (26) N 3 8 1 Date Spot Sep '21 Future 9/1/20 58.61 60.03 3 9/2/20 59.8 62.2 4 9/3/20 57.92 59.92 5 9/4/20 59.74 62.23 6 9/8/20 62.14 63.48 7 9/9/20 58.74 60.61 8 9/10/20 58.87 61.52 9 9/11/20 57.59 58.94 10 9/14/20 55.85 57.38 11 9/15/20 56.64 58.18 9/16/20 55.28 56.65 13 9/17/20 55.98 58.68 14 9/18/20 53.83 56.4 15 9/21/20 51.49 53.77 16 9/22/20 52.22 53.64 9/23/20 49.88 51.34 18 9/24/20 48.18 49.75 19 9/25/20 48.05 49.46 20 12 17 long long Long/Short Order Type Limit Price Shares long limit 60.46 7600 long limit 63.73 6200 long limit 63.86 4200 long limit 63.86 1600 limit 64.69 4700 limit 65.55 1900 long limit 66.3 3300 long market n/a 1000 market n/a 1700 short limit 62.52 2300 short limit 64.05 7500 short limit 65.13 1100 short limit 68.96 3800 short market n/a 2300 short market n/a 500 long 9/23/20 9/8/20 6 29 81 49 2 Trader ID 73470 154857 226111 343311 436358 453227 538815 567545 809026 909339 9/1/20 (95) 98 54 119 (115) (100) 67 (118) 9/2/20 (20) 42 (54) (112) (99) 85 (30) 60 (29) 157 9/3/20 (62) (75) (10) (59) 100 (94) 37 47 (9) 125 9/4/20 (70) (50) (84) 47 (6) 64 49 (97) 4 92 9 9/9/20 80 (77) (38) (97) (16) (10) 9 (76) (20) 245 9/10/20 9/11/20 12 (78) 5 31 (1) (17) 90 103 (23) (66) (86) (67) 57 75 (43) (53) 44 (80) 9/14/20 9/15/20 107 (82) 33 (4) 3 91 (111) (14) (6) (44) 40 (91) 37 9 54 32 68 (149) 16 9/16/20 2 21 (88) 70 (7) 7 (25) (8) 99 (71) 16 9/17/20 9/18/20 9/21/20 (55) (4) (86) (72) 16 (95) 28 (9) 89 (1) (91) 111 (12) (6) (43) (58) 5 22 7 57 49 (87) 91 (8) 49 79 16 150 (142) 9/22/20 (14) (89) (1) 109 76 (54) 77 50 40 (194) 9/24/20 (66) (88) 111 79 (40) 110 (41) (80) 78 (49) (4) (4) 111 43 (39) (85) (100) 9/25/20 91 29 (61) 69 118 35 (16) 14 (101) (178) 20 (23) (27) 57 (165) 61 11 41 29 143 (26) N 3 8 1 Date Spot Sep '21 Future 9/1/20 58.61 60.03 3 9/2/20 59.8 62.2 4 9/3/20 57.92 59.92 5 9/4/20 59.74 62.23 6 9/8/20 62.14 63.48 7 9/9/20 58.74 60.61 8 9/10/20 58.87 61.52 9 9/11/20 57.59 58.94 10 9/14/20 55.85 57.38 11 9/15/20 56.64 58.18 9/16/20 55.28 56.65 13 9/17/20 55.98 58.68 14 9/18/20 53.83 56.4 15 9/21/20 51.49 53.77 16 9/22/20 52.22 53.64 9/23/20 49.88 51.34 18 9/24/20 48.18 49.75 19 9/25/20 48.05 49.46 20 12 17 long long Long/Short Order Type Limit Price Shares long limit 60.46 7600 long limit 63.73 6200 long limit 63.86 4200 long limit 63.86 1600 limit 64.69 4700 limit 65.55 1900 long limit 66.3 3300 long market n/a 1000 market n/a 1700 short limit 62.52 2300 short limit 64.05 7500 short limit 65.13 1100 short limit 68.96 3800 short market n/a 2300 short market n/a 500 long