The S&P 500 (GSPC) returned 2.5% in September 1980.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
September 30 1980 | $123.54 | $126.09 | $123.54 | $125.46 | 40,290,000 |
September 29 1980 | $125.41 | $125.41 | $122.87 | $123.54 | 46,410,000 |
September 26 1980 | $128.17 | $128.17 | $125.29 | $126.35 | 49,460,000 |
September 25 1980 | $130.37 | $131.53 | $128.13 | $128.72 | 49,510,000 |
September 24 1980 | $129.43 | $131.34 | $128.45 | $130.37 | 56,860,000 |
September 23 1980 | $130.40 | $132.17 | $128.55 | $129.43 | 64,390,000 |
September 22 1980 | $129.25 | $130.99 | $127.89 | $130.40 | 53,140,000 |
September 19 1980 | $128.40 | $130.33 | $127.57 | $129.25 | 53,780,000 |
September 18 1980 | $128.87 | $130.38 | $127.63 | $128.40 | 63,390,000 |
September 17 1980 | $126.74 | $129.68 | $126.37 | $128.87 | 63,990,000 |
September 16 1980 | $125.67 | $127.78 | $125.15 | $126.74 | 57,290,000 |
September 15 1980 | $125.54 | $126.35 | $124.09 | $125.67 | 44,630,000 |
September 12 1980 | $125.66 | $126.75 | $124.72 | $125.54 | 47,180,000 |
September 11 1980 | $124.81 | $126.48 | $124.19 | $125.66 | 44,770,000 |
September 10 1980 | $124.07 | $125.95 | $123.60 | $124.81 | 51,430,000 |
September 09 1980 | $123.31 | $124.52 | $121.94 | $124.07 | 44,460,000 |
September 08 1980 | $124.88 | $125.67 | $122.78 | $123.31 | 42,050,000 |
September 05 1980 | $125.42 | $126.12 | $124.08 | $124.88 | 37,990,000 |
September 04 1980 | $126.12 | $127.70 | $124.42 | $125.42 | 59,030,000 |
September 03 1980 | $123.87 | $126.43 | $123.87 | $126.12 | 52,370,000 |
September 02 1980 | $122.38 | $124.36 | $121.79 | $123.74 | 35,290,000 |