O-正.反.合. by TVXQ (동방신기) has sold 397,630 copies in Korea.
O-正.反.合. certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Korea |
397,630 | RIAK / Gaon charts |
Korea Sales: 397,630
Certification / note: RIAK / Gaon charts
Certification Date / sales as of:
|
|
| Total sales | 397,630 | (in 1 country) |
Total
Sales: 397,630
(in 1 country)
|
Year-end chart performance for O-正.反.合.
| Chart 2006 | Rank | Sales |
| South Korean Albums (Gaon) |
1 | 349,317 |
| Chart 2007 | Rank | Sales |
| South Korean Albums (Gaon) |
22 | 36,044 |
| Chart 2010 | Rank | Sales |
| South Korean Albums (Gaon) |
33 | 41,108 |
| Chart 2011 | Rank | Sales |
| South Korean Albums (Gaon) |
98 | 15,827 |