Third quarter   First nine months
  2011 2010   2011 2010
Net sales Volvo Group, SEK M 73,321 63,969   223,860 191,351
Operating income Volvo Group, SEK M 5,774 4,913   19,944 12,482
  Operating income Industrial operations, SEK M 5,523 4,866   19,264 12,414
  Operating income Customer Finance, SEK M 251 48   680 69
Operating margin Volvo Group, % 7.9 7.7   8.9 6.5
Income after financial items, SEK M 5,443 4,251   18,539 11,020
Income for the period, SEK M 3,895 2,851   13,317 7,797
Diluted earnings per share, SEK 1.89 1.38   6.43 3.76
Return on shareholders' equity, rolling 12 months,%       22.1 8.5