Shares of AMPH stock opened at $23.86 on Wednesday. The company has a market capitalization of $1.11 billion, a P/E ratio of 8.94 and a beta of 0.75. The business's 50 day moving average is $27.78 and its two-hundred day moving average is $25.35. The company has a current ratio of 3.29, a quick ratio of 2.21 and a debt-to-equity ratio of 0.80. Amphastar Pharmaceuticals, Inc. has a 12-month low of $20.39 and a 12-month high of $53.96.