If you invested ¥1000 in mixi, Inc. (2121.T) 10 years ago, it would be worth ¥1,573.51 as of October 21, 2026, based on a reinvested dividends scenario. Over the same period, a ¥1000 investment made 5 years ago would be worth ¥1,838.22, while ¥1000 invested 1 year ago would be worth ¥1,300.67. This corresponds to total returns of 57.35%, 83.82%, 30.07%, respectively, with annualized returns of 4.63%, 12.94%, 30.07%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| October 20, 2026 | 4,015 | 4,000 | 4,000 | 4,040 | 3,990 | 262,900 |
| October 19, 2026 | 4,000 | 4,010 | 4,010 | 4,015 | 3,960 | 293,400 |
| October 16, 2026 | 3,935 | 3,995 | 3,995 | 4,070 | 3,935 | 436,700 |
| October 15, 2026 | 3,860 | 3,880 | 3,880 | 3,915 | 3,840 | 443,300 |
| October 14, 2026 | 3,825 | 3,860 | 3,860 | 3,880 | 3,795 | 270,200 |
| October 13, 2026 | 3,780 | 3,840 | 3,840 | 3,845 | 3,755 | 434,300 |
| October 09, 2026 | 3,750 | 3,750 | 3,750 | 3,770 | 3,690 | 292,100 |
| October 08, 2026 | 3,730 | 3,695 | 3,695 | 3,730 | 3,655 | 204,700 |
| October 07, 2026 | 3,770 | 3,695 | 3,695 | 3,805 | 3,685 | 314,600 |
| October 06, 2026 | 3,720 | 3,730 | 3,730 | 3,750 | 3,700 | 244,800 |
| October 05, 2026 | 3,660 | 3,690 | 3,690 | 3,725 | 3,650 | 138,000 |
| October 02, 2026 | 3,730 | 3,695 | 3,695 | 3,730 | 3,670 | 277,300 |
| October 01, 2026 | 3,690 | 3,730 | 3,730 | 3,745 | 3,650 | 351,300 |
| September 30, 2026 | 3,715 | 3,675 | 3,675 | 3,715 | 3,645 | 283,400 |
| September 29, 2026 | 3,725 | 3,715 | 3,715 | 3,745 | 3,680 | 233,500 |
| September 28, 2026 | 3,825 | 3,805 | 3,805 | 3,835 | 3,775 | 360,500 |
| September 25, 2026 | 3,845 | 3,830 | 3,830 | 3,845 | 3,805 | 304,700 |
| September 24, 2026 | 3,800 | 3,825 | 3,825 | 3,865 | 3,780 | 421,500 |
| September 18, 2026 | 3,820 | 3,810 | 3,810 | 3,825 | 3,770 | 228,000 |
| September 17, 2026 | 3,765 | 3,840 | 3,840 | 3,885 | 3,765 | 354,600 |
| September 16, 2026 | 3,845 | 3,745 | 3,745 | 3,850 | 3,735 | 376,600 |
| September 15, 2026 | 3,825 | 3,825 | 3,825 | 3,840 | 3,785 | 294,000 |
| September 11, 2026 | 3,575 | 3,650 | 3,650 | 3,680 | 3,565 | 316,300 |
| September 10, 2026 | 3,485 | 3,605 | 3,605 | 3,615 | 3,455 | 363,600 |
| September 09, 2026 | 3,520 | 3,460 | 3,460 | 3,520 | 3,440 | 276,700 |
| September 08, 2026 | 3,530 | 3,525 | 3,525 | 3,540 | 3,500 | 191,900 |
| September 07, 2026 | 3,600 | 3,555 | 3,555 | 3,600 | 3,530 | 249,300 |
| September 04, 2026 | 3,705 | 3,655 | 3,655 | 3,720 | 3,635 | 377,700 |
| September 03, 2026 | 3,700 | 3,635 | 3,635 | 3,700 | 3,610 | 308,800 |
| September 02, 2026 | 3,765 | 3,700 | 3,700 | 3,825 | 3,685 | 565,400 |
| September 01, 2026 | 3,655 | 3,740 | 3,740 | 3,810 | 3,655 | 1.02M |
| August 31, 2026 | 3,600 | 3,640 | 3,640 | 3,645 | 3,560 | 323,400 |
| August 28, 2026 | 3,605 | 3,595 | 3,595 | 3,650 | 3,575 | 283,300 |
| August 27, 2026 | 3,620 | 3,585 | 3,585 | 3,710 | 3,580 | 281,200 |
| August 26, 2026 | 3,575 | 3,665 | 3,665 | 3,685 | 3,575 | 524,600 |
| August 25, 2026 | 3,560 | 3,565 | 3,565 | 3,575 | 3,535 | 291,000 |
| August 24, 2026 | 3,560 | 3,560 | 3,560 | 3,610 | 3,530 | 334,500 |
| August 21, 2026 | 3,535 | 3,530 | 3,530 | 3,565 | 3,505 | 493,800 |
| August 20, 2026 | 3,470 | 3,510 | 3,510 | 3,535 | 3,465 | 577,100 |
| August 19, 2026 | 3,450 | 3,440 | 3,440 | 3,465 | 3,390 | 275,100 |
| August 18, 2026 | 3,340 | 3,430 | 3,430 | 3,440 | 3,320 | 567,800 |
| August 17, 2026 | 3,310 | 3,305 | 3,305 | 3,340 | 3,290 | 195,200 |
| August 14, 2026 | 3,285 | 3,325 | 3,325 | 3,325 | 3,250 | 234,200 |
| August 13, 2026 | 3,290 | 3,285 | 3,285 | 3,310 | 3,265 | 253,100 |
| August 12, 2026 | 3,340 | 3,320 | 3,320 | 3,355 | 3,285 | 290,000 |
| August 10, 2026 | 3,300 | 3,335 | 3,335 | 3,370 | 3,280 | 490,600 |
| August 07, 2026 | 3,240 | 3,275 | 3,275 | 3,290 | 3,200 | 364,100 |
| August 06, 2026 | 3,220 | 3,210 | 3,210 | 3,265 | 3,170 | 313,100 |
| August 05, 2026 | 3,250 | 3,215 | 3,215 | 3,250 | 3,145 | 661,300 |
| August 04, 2026 | 3,350 | 3,210 | 3,210 | 3,365 | 3,210 | 730,100 |
| August 03, 2026 | 3,200 | 3,400 | 3,400 | 3,400 | 3,175 | 1.69M |
| July 31, 2026 | 2,915 | 2,896 | 2,896 | 2,949 | 2,893 | 293,200 |
| July 30, 2026 | 3,015 | 2,991 | 2,991 | 3,025 | 2,952 | 350,200 |
| July 29, 2026 | 2,895 | 2,994 | 2,994 | 3,020 | 2,895 | 543,600 |
| July 28, 2026 | 2,893 | 2,929 | 2,929 | 2,940 | 2,885 | 367,900 |
| July 27, 2026 | 2,874 | 2,884 | 2,884 | 2,896 | 2,860 | 239,300 |
| July 24, 2026 | 2,836 | 2,827 | 2,827 | 2,842 | 2,810 | 157,400 |
| July 23, 2026 | 2,859 | 2,824 | 2,824 | 2,870 | 2,820 | 276,000 |
| July 22, 2026 | 2,940 | 2,907 | 2,907 | 2,948 | 2,892 | 214,400 |
| July 21, 2026 | 2,946 | 2,960 | 2,960 | 2,998 | 2,930 | 370,200 |