We test the hypothesis that dual-class shares can help managers focus on the implementation of long-term projects while avoiding short-term market pressure. Consistent with this idea, we find that dual-class firms face lower short-term market pressure (fewer transient or short-term institutional holdings, a lower probability of being taken over, and lower analyst coverage) than propensity-matched single-class firms. Dual-class firms also tend to have more growth opportunities (higher sales growth and R&D intensity). The dual-class share structure increases the market valuation of high growth firms, in contrast to the finding in the literature that dual-class firms trade at lower valuations. To address endogeneity concerns, we evaluate a sample of dual-class share unifications and find that growth opportunities decline while short-term market pressure increases after share unifications.