AMPH Amphastar Pharmaceuticals PE ratio, current and historical analysis

The P/E ratio for Amphastar Pharmaceuticals stock stands at 10.8 as of Aug 12, 2025. This is calculated based on the current EPS of $2.81 and the stock price of $30.35 per share. A decrease of 2.5% has been recorded in the PE ratio compared to the average of 11.1 of the past four quarters.

AMPH PE ratio history

How has AMPH's PE ratio performed in the past

Over the last ten years, the average PE ratio of Amphastar Pharmaceuticals has been 123.66. The current 10.8 price-to-earnings ratio is 91% less than the historical average. In the past ten years, AMPH's PE ratio reached its highest point in the Mar 2016 quarter at 1,200, with a price of $12 and an EPS of $0.01. The Jun 2025 quarter saw the lowest point at 8.17, with a price of $22.96 and an EPS of $2.81.

Today
11.02
Average
123.66
Median
21.24
Minimum
8.17
Maximum
1,200

Amphastar Pharmaceuticals PE ratio by year

Maximum annual increase: 3,513.64% in 2020

Maximum annual decrease: -97.33% in 2021

Year PE ratio PE change Price EPS
2024 11.29 -47.97% $37.13 $3.29
2023 21.7 45.64% $61.85 $2.85
2022 14.9 -16.85% $28.02 $1.88
2021 17.92 -97.33% $23.29 $1.3
2020 670.33 3,513.64% $20.11 $0.03
2019 18.55 N/A $19.29 $1.04
2018 N/A N/A $19.9 -$0.12
2017 240.5 187.23% $19.24 $0.08
2016 83.73 N/A $18.42 $0.22
2015 N/A N/A $14.23 -$0.06
2014 N/A N/A $11.61 -$0.25
2013 N/A N/A N/A $0.31
2012 N/A N/A N/A $0.47
2011 N/A N/A N/A $0.2

Amphastar Pharmaceuticals PE ratio by quarter (TTM)

Year PE ratio PE change Price EPS
Jun 2025 8.17 -17.72% $22.96 $2.81
Mar 2025 9.93 -12.05% $28.99 $2.92
Dec 2024 11.29 -24.38% $37.13 $3.29
Sep 2024 14.93 28.04% $48.53 $3.25
Jun 2024 11.66 -15.01% $40 $3.43
Mar 2024 13.72 -36.77% $43.91 $3.2
Dec 2023 21.7 31.67% $61.85 $2.85
Sep 2023 16.48 -39.79% $45.99 $2.79
Jun 2023 27.37 39.43% $57.47 $2.1
Mar 2023 19.63 31.74% $37.5 $1.91
Dec 2022 14.9 -16.2% $28.02 $1.88
Sep 2022 17.78 -3.94% $28.1 $1.58
Jun 2022 18.51 -12.85% $34.79 $1.88
Mar 2022 21.24 18.53% $35.9 $1.69
Dec 2021 17.92 -28.35% $23.29 $1.3

AMPH Price vs fair value

How does AMPH's price compare to its estimated fair value based on its growth

AMPH average PE ratio chart

What is the average PE ratio of AMPH for the past years

Currently, AMPH's PE ratio is lower than the 3, 5 and 10-year averages.

3-year avg
15.63
5-year avg
73.13
10-year avg
123.66
15-year avg
N/A

AMPH PE vs peers

What is AMPH's PE ratio compared to its peers
Stock name PE ratio Market cap
AMPH Amphastar Pharmaceuticals Inc 11.02 $1.44B
SCYX Scynexis Inc N/A $33.95M

Frequently asked questions

What is Amphastar Pharmaceuticals's PE ratio?

The price to earnings ratio for AMPH stock is 10.8 as of Aug 12, 2025.

What is the 3-year average PE ratio for Amphastar Pharmaceuticals (AMPH)?

The average PE ratio for AMPH stock over the past 3 years is 15.63.

What is the 5-year average PE ratio for Amphastar Pharmaceuticals (AMPH)?

The average PE ratio for AMPH stock over the past 5 years is 73.13.

What is the highest PE ratio for AMPH?

The highest quarterly PE ratio in the last ten years has been 1,200 and it was in the Mar 2016 quarter.

How does the current PE ratio for AMPH compare to its historical average?

The current price to earnings ratio of AMPH is 91% lower than the 10-year historical average.

How is AMPH's PE ratio calculated (Amphastar Pharmaceuticals PE ratio formula)?

The P/E ratio is calculated by dividing the latest price of a stock by its trailing twelve months EPS. As of today (Aug 12, 2025), Amphastar Pharmaceuticals's stock price is $30.35. The earnings per share for the trailing twelve months (TTM) ending Jun 2025 is $2.81. Therefore, Amphastar Pharmaceuticals's price to earnings ratio for today is 10.8. PE RATIO(10.8) = STOCK PRICE($30.35) / TTM EPS($2.81)

All PE ratio stats are based on quarterly TTM periods, unless otherwise specified.