Which positions underperformed for you? What factors created the performance gap?

ZM	10/29/20 2:33p	10/29/20 2:33p	Buy		100	$487.51
ZM	10/29/20 2:31p	10/29/20 2:31p	Buy		50	$487.64
ZM	10/29/20 2:30p	10/29/20 2:30p	Buy		30	$488.77
ZM	10/29/20 2:27p	10/29/20 2:27p	Buy		35	$487.32
GOOGL	10/29/20 2:18p	10/29/20 2:18p	Sell		3	$1,576.03
FB	10/29/20 11:42a	10/29/20 11:42a	Sell		25	$281.68
ZM	10/28/20 3:56p	10/28/20 3:56p	Buy		5	$515.72
AMZN	10/28/20 3:56p	10/28/20 3:56p	Buy		4	$3,170.38
PFE	10/28/20 3:53p	10/28/20 3:53p	Buy		30	$35.47
GE	10/28/20 3:41p	10/28/20 3:41p	Short		30	$7.47
COST	10/28/20 3:37p	10/28/20 3:37p	Buy		20	$367.93
TEVA	10/28/20 3:35p	10/28/20 3:35p	Buy		20	$8.81
FB	10/28/20 2:47p	10/28/20 2:47p	Buy		25	$269.43
NFLX	10/28/20 1:05p	10/28/20 1:05p	Buy		10	$486.25
PYPL	10/28/20 1:04p	10/28/20 1:04p	Buy		20	$192.34
CRM	10/28/20 11:38a	10/28/20 11:38a	Buy		45	$239.22
MSFT	10/28/20 11:30a	10/28/20 11:30a	Buy		15	$204.76
AMZN	10/28/20 11:26a	10/28/20 11:26a	Buy		5	$3,193.83
GE	10/28/20 11:24a	10/28/20 11:24a	Short		20	$7.73
WMT	10/28/20 11:19a	10/28/20 11:19a	Buy		30	$140.99
DISH	10/28/20 11:17a	10/28/20 11:17a	Short		10	$25.40
TMUS	10/28/20 11:15a	10/28/20 11:15a	Buy		30	$110.89
GOOGL	10/28/20 11:13a	10/28/20 11:13a	Buy		3	$1,530.04
DOCU	10/28/20 11:11a	10/28/20 11:11a	Buy		30	$220.35
ZM	10/28/20 11:10a	10/28/20 11:10a	Buy		30	$522.69