This paper examines the determinants of stock option introduction as a part of CEO compensation in listed US firms during the 1994-2004 period. The results are consistent with agency costs and recruiting considerations, suggesting that firms do not adjust CEO compensation in order to address the 'investment horizon' problem. The findings also suggest that CEO stock option adoption is not necessarily influenced by the same factors that have been found in the literature to affect the level of CEO stock-option compensation and the adoption of broad-based stock-option incentives. Overall, the findings provide evidence for several theoretical predictions, thus adding to our understanding of managerial incentives.JEL Classification: J33, M12, M52