List of largest daily changes in the S&P 500

Largest point changes

The four tables below show only the largest one-day changes between a given day's close and the close of the previous trading day

Trading day

In business, the trading day is the time span that a particular stock exchange is open. For example, the New York Stock Exchange is, as of 2008, open from 9:30 AM Eastern Time to 4:00 PM Eastern Time. Trading days never take place on weekends. When a trading day ends, all share trading ends and...

,, not the largest changes during the trading day (i.e. intraday changes).

Largest daily point gains

Rank	Date	Close	Net Change	% Change
1	&2008-10-28	940.51	+91.59	+10.79
2	&2008-10-13	1003.35	+90.6	+9.93
3	&2000-03-16	1458.47	+66.32	+4.76
4	&2001-01-03	1347.56	+64.29	+5.01
5	&2008-11-13	911.29	+58.16	+6.82
6	&2008-03-18	1330.74	+53.58	+4.20
7	&2000-12-05	1376.54	+51.57	+3.89
8	&2008-09-30	1164.74	+50.96	+4.58
9	&2008-11-24	851.81	+50.61	+6.32
10	&1998-09-08	1023.46	+49.57	+5.09
11	&2008-09-18	1206.51	+49.43	+4.27
12	&2001-04-05	1151.44	+48.19	+4.37
13	&2000-04-25	1477.44	+47.58	+3.33
14	&2000-10-19	1388.76	+46.63	+3.47
15	&2001-04-18	1238.16	+46.35	+3.89
16	&2008-03-11	1320.65	+46.25	+3.63
17	&2002-07-29	898.96	+46.12	+5.41
18	&1999-10-28	1342.44	+45.73	+3.53
19	&2002-07-24	775.68	+45.72	+5.73
20	&2000-04-17	1401.44	+44.88	+3.31

Largest daily point losses

Rank	Date	Close	Net Change	% Change
1	&2008-09-29	1106.42	-102.65	-8.81
2	&2008-10-15	907.84	-86.76	-9.03
3	&2000-04-14	1356.56	-83.95	-5.83
4	&2011-08-08	1119.46	-79.92	-6.66
5	&2008-10-09	909.92	-78.5	-7.62
6	&2008-12-01	816.21	-72.4	-8.93
7	&1998-08-31	957.28	-69.86	-6.80
8	&1997-10-27	876.99	-64.65	-6.87
9	&2008-10-07	996.23	-61.37	-5.74
10	&2011-08-04	1200.07	-60.27	-4.78
11	&2008-09-15	1192.7	-58.22	-4.71
12	&1987-10-19	224.84	-57.86	-20.47
13	&2000-01-04	1399.42	-55.8	-3.83
14	&2008-10-22	896.78	-54.89	-6.10
15	&2008-09-17	1156.39	-53.95	-4.71
16	&2001-09-17	1038.77	-53.77	-4.92
17	&2008-11-20	752.44	-53.43	-6.71
18	&2001-03-12	1180.16	-53.26	-4.32
19	&2008-11-19	806.58	-52.45	-6.12
20	&2007-02-27	1399.04	-50.21	-3.47

Largest percentage changes

Largest daily percentage gains

Rank	Date	Close	Net Change	% Change
1	2008-10-28	940.51	+91.59	+10.79
2	2008-10-13	1003.35	+90.6	+9.93
3	1987-10-21	258.38	+21.55	+9.10
4	2008-11-13	911.29	+58.16	+6.82
5	2008-11-24	851.81	+50.61	+6.32
6	2009-03-10	719.6	+40.32	+5.94
7	2008-11-21	800.03	+44.19	+5.85
8	2002-07-24	843.43	+45.72	+5.73
9	2002-07-29	898.96	+46.12	+5.41
10	1987-10-20	236.83	+11.77	+5.23
11	1997-10-28	921.85	+44.86	+5.12
12	1998-09-08	1023.46	+49.57	+5.09
13	2001-01-03	1347.56	+64.29	+5.01
14	1987-10-29	244.77	+11.46	+4.91
15	1970-05-27	72.77	+3.40	+4.90
16	2008-12-16	913.18	+41.65	+4.78
17	2000-03-16	1458.47	+66.32	+4.76
18	2002-10-15	881.27	+39.83	+4.73
19	1962-05-29	58.08	+2.58	+4.65
20	1974-10-09	67.82	+2.98	+4.60

Largest daily percentage losses

Rank	Date	Close	Net Change	% Change
1	1987-10-19	224.84	-57.86	-20.47
2	2008-10-15	907.84	-86.76	-8.72
3	2008-09-29	1106.42	-102.65	-8.49
4	1987-10-26	227.67	-20.53	-8.27
5	2008-12-01	816.21	-72.4	-8.15
6	2008-10-09	909.92	-78.5	-7.94
7	1997-10-27	876.99	-64.65	-6.87
8	1998-08-31	957.28	-69.86	-6.80
9	1988-01-08	243.4	-17.65	-6.76
10	2011-08-08	1119.46	-79.92	-6.66
11	2008-11-20	752.44	-53.43	-6.63
12	1962-05-28	55.5	-3.65	-6.17
13	1989-10-13	333.65	-21.74	-6.12
14	2008-11-19	806.58	-52.45	-6.11
15	2000-04-14	1356.56	-83.95	-5.83
16	2008-10-07	996.23	-61.37	-5.80
17	2008-10-22	896.78	-54.89	-5.77
18	2009-01-20	805.22	-44.42	-5.23
19	1987-10-16	282.7	-15.38	-5.16
20	2008-11-06	904.88	-47.52	-4.99

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