Alkermes plc (ALKS) P/E Ratio History
Historical price-to-earnings valuation from 2006 to 2025
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Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of March 1, 2026, Alkermes plc (ALKS) trades at a price-to-earnings ratio of 21.0x, with a stock price of $30.10 and trailing twelve-month earnings per share of $1.43.
The current P/E is 70% below its 5-year average of 70.2x. Over the past five years, ALKS's P/E has ranged from a low of 7.5x to a high of 467.1x, placing the current valuation at the 70th percentile of its historical range.
Compared to the Healthcare sector median P/E of 23.7x, ALKS is roughly in line with its sector peers. The sector includes 224 companies with P/E ratios ranging from 0.0x to 184.4x.
Relative to the broader market, ALKS trades roughly in line with the S&P 500 median P/E of 26.2x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our ALKS DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
Peer Comparison
P/E metrics vs. Commercial Specialty Pharma peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
UTHRUnited Therapeutics Corporation | $22B | 18.1Lowest | 0.94Best | +13% |
ALKSAlkermes plc | $5B | 21.0 | - | -34% |
ADMAADMA Biologics, Inc. | $4B | 19.2 | - | +723%Best |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
Historical P/E Data
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2025 Q4 | Wed Dec 31 2025 00:00:00 GM | $27.98 | $1.43 | 19.6x | -75% |
| FY2025 Q3 | $30.00 | $2.02 | 14.9x | -81% | |
| FY2025 Q2 | Mon Jun 30 2025 00:00:00 GM | $28.61 | $2.08 | 13.8x | -82% |
| FY2025 Q1 | Mon Mar 31 2025 00:00:00 GM | $33.02 | $2.09 | 15.8x | -80% |
| FY2024 Q4 | $28.76 | $2.17 | 13.3x | -83% | |
| FY2024 Q3 | Mon Sep 30 2024 00:00:00 GM | $27.99 | $1.95 | 14.4x | -82% |
| FY2024 Q2 | Sun Jun 30 2024 00:00:00 GM | $24.10 | $1.68 | 14.3x | -82% |
| FY2024 Q1 | Sun Mar 31 2024 00:00:00 GM | $27.07 | $2.53 | 10.7x | -86% |
| FY2023 Q4 | Sun Dec 31 2023 00:00:00 GM | $27.74 | $2.07 | 13.4x | -83% |
| FY2023 Q3 | Sat Sep 30 2023 00:00:00 GM | $28.01 | $1.24 | 22.6x | -71% |
| FY2023 Q2 | Fri Jun 30 2023 00:00:00 GM | $31.30 | $0.57 | 54.9x | -30% |
| FY2013 Q4 | $40.66 | $0.13 | 302.5x | +286% |
Average P/E for displayed period: 78.3x
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Start ComparisonFrequently Asked Questions
Is ALKS stock overvalued or undervalued?
ALKS trades at 21.0x P/E, below its 5-year average of 70.2x. At the 70th percentile of historical range, the stock is priced at a discount to its own history.
How does ALKS's valuation compare to peers?
Alkermes plc P/E of 21.0x compares to sector median of 23.7x. The discount suggests lower growth expectations or higher risk.
What is ALKS's PEG ratio?
ALKS PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2006-2025.