TSMC and the rest of the foundry industry are exposed to the highly cyclical nature of the semiconductor industry. During upturns, TSMC must ensure that it has enough production capacity to meet strong customer demand. However, during downturns, it must contend with excess capacity because of weaker demand, and the high fixed costs associated with its manufacturing facilities. As a result, the company's financial results tend to fluctuate with a cycle time of a few years. This is more apparent in earnings than revenues because of the general trend of revenue and capacity growth. TSMC's business has generally also been seasonal with a peak in Q3 and a low in Q1.