Differentiation among enrollment performance factors and strategic planning and enrollment management practice in 54 state universities was examined. Universities that were studied were among those receiving the largest number of American College Testing (ACT) program student profile reports from college bound students. In addition to obtaining questionnaire responses from 44 chief academic officers and 28 student services officers, 15 site visits were made. Attention was directed to selected enrollment measures including: change in the number of first-choice ACT student profile reports received from test takers in the home state; and change in the percentage (market share) of first-choice ACT student profile reports received from first-choice in-state test populations. Results indicate that enrollment performance among universities was widely dispersed and that strategic planning for enrollment management was underdeveloped. Relationships were found between the use of strategic planning systems and enrollment patterns among state universities. Findings support recommendations for the development of strategic planning and enrollment management systems as a management tool to adapt to change. (SW)