Below here is Pretax Income (PTI) or Pretax Loss (PTL) for each of the most recent three years of the two largest corporations I found, which are headquartered in South Dakota, and which file with the SEC.
| PTI(L) | PTI(L) | ||||
| 1 Year | 2 Year | ||||
| PTI(L) | PTI(L) | PTI(L) | % | % | |
| 2011 | 2010 | 2009 | Change | Change | |
| mils $s | mils $s | mils $s | |||
| South Dakota | |||||
| Raven Industries | 76 | 60 | 43 | 27% | 77% |
| Daktronics | 22 | (8) | 42 | 375% | -48% |