Amphastar Pharmaceuticals, Inc. (AMPH) NASDAQ

Currency In USD

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AMPH Historical Return

If you invested $1000 in Amphastar Pharmaceuticals, Inc. (AMPH) 10 years ago, it would be worth $1,393.76 as of November 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,342.72, while $1000 invested 1 year ago would be worth $1,027.67. This corresponds to total returns of 39.38%, 34.27%, 2.77%, respectively, with annualized returns of 3.38%, 6.07%, 2.77%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

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AMPH Historical Data

Date Range:

DateOpenCloseAdj CloseHighLowVolume
November 11, 202628.8728.628.629.328.52497,660
November 10, 202628.7529.0629.0629.2128.51484,839
November 09, 202628.7429.3829.3829.728.5635,798
November 06, 202629.4428.4928.4930.3927.88826,252
November 05, 202628.2327.6627.6629.2127.43600,458
November 04, 202627.4928.0228.0228.5727.09644,761
November 03, 202627.0427.1227.1227.3926.85550,210
November 02, 202627.7227.0327.0327.7226.73497,700
October 30, 202627.1227.7227.7227.826.76664,417
October 29, 202626.8426.9326.932726.45371,412
October 28, 202625.3626.3326.3326.3625.36397,259
October 27, 202625.3825.5725.5725.725.29323,925
October 26, 202625.2725.4725.4725.6525.22225,240
October 23, 202625.9125.1425.1425.9124.62482,686
October 22, 202626.2526.0426.0426.525.92315,004
October 21, 202625.6926.226.226.3525.51390,201
October 20, 202626.2425.9425.9426.6125.82360,167
October 19, 202625.6326.1426.1426.3125.63299,509
October 16, 202626.6125.8725.8726.6125.52351,983
October 15, 202626.3826.4226.4227.126.13352,334
October 14, 202625.8926.0826.0826.5725.89364,652
October 13, 202626.9126.0526.052726.03326,542
October 12, 202626.6226.7626.7626.8626.51362,817
October 09, 202625.7326.6226.6226.7925.65270,994
October 08, 202625.3925.8125.8126.1425.1422,785
October 07, 202625.9125.5425.5426.1725.29775,021
October 06, 202625.5425.9125.9126.1325.03467,663
October 05, 202625.4325.3725.3725.725.17453,640
October 02, 202625.4625.4325.4325.5525.06372,329
October 01, 202625.625.3525.3526.0225.3528,692
September 30, 202626.7325.8125.8126.7925.77504,656
September 29, 202627.5926.6826.6827.6426.52626,950
September 28, 202625.9927.3927.3927.825.96747,916
September 25, 202626.2526.1326.1326.6325.66370,895
September 24, 202624.8126.2726.2726.3124.65568,868
September 23, 202624.3924.9624.9625.1224.2504,549
September 22, 202624.624.3224.3224.8324.1496,747
September 21, 202624.1424.4824.4825.4124.05563,575
September 18, 202623.6923.6223.6223.9923.511.45M
September 17, 202624.0823.8223.8224.1823.5451,995
September 16, 202623.6423.9523.9524.3923.49502,992
September 15, 202623.7523.6423.6423.9423.56347,395
September 11, 202623.6523.7823.7823.823.24403,846
September 10, 20262323.5423.5423.6922.76495,998
September 09, 202622.8423.0423.0423.0722.57343,408
September 08, 202622.8222.9322.9323.1422.3451,310
September 04, 202623.4723.1823.1823.7423.07626,116
September 03, 202623.8823.8423.8423.9223.04432,319
September 02, 202623.0523.7423.7423.8323.03436,696
September 01, 202622.5922.9622.9623.0522.59349,055
August 31, 202621.8622.5322.5322.6521.52274,024
August 28, 202621.8822.0122.0122.1521.69224,528
August 27, 202621.6921.8821.8821.9721.63259,781
August 26, 202621.8622.0222.0222.4421.72395,567
August 25, 202621.521.9821.9822.0721.41283,773
August 24, 202621.621.5221.5221.8121.26210,262
August 21, 202621.6421.621.622.221.44376,557
August 20, 202621.3821.6821.6821.7621.24338,696
August 19, 202621.6421.7421.7421.9921.15410,770
August 18, 202621.1121.3421.3421.5921.08411,802
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