Mercury Systems, Inc. (MRCY) P/E Ratio History
Historical price-to-earnings valuation from 1999 to 2023
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MRCY Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, Mercury Systems, Inc. (MRCY) trades at a price-to-earnings ratio of -135.5x, with a stock price of $88.06 and trailing twelve-month earnings per share of $-0.24.
The current P/E is 211% below its 5-year average of 122.1x. Over the past five years, MRCY's P/E has ranged from a low of 44.3x to a high of 676.7x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Industrials sector median P/E of 25.5x, MRCY trades at a 630% discount to its sector peers. The sector includes 413 companies with P/E ratios ranging from 0.0x to 185.3x.
Relative to the broader market, MRCY trades at a notable discount to the S&P 500 median P/E of 25.1x. 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 MRCY 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.
MRCY P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $11B | 438.5 | - | +18% | |
| $27B | 56.2 | 2.58 | +22% | |
| $11B | 40.2 | 3.20 | +29% | |
| $3B | 21.7 | 0.16Best | +26% | |
| $12B | 20.4 | - | +10% | |
| $29B | 33.4 | 2.73 | +10% | |
| $17B | 11.8 | 0.57 | +21% | |
| $4B | 12.2 | 0.73 | +7% | |
| $13B | 10.6Lowest | 0.65 | +58%Best | |
| $11B | 22.0 | 1.81 | +20% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
MRCY Historical P/E Data (1999–2023)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2023 Q1 | Fri Sep 30 2022 00:00:00 GM | $40.60 | $0.06 | 676.7x | +778% |
| FY2022 Q4 | $64.33 | $0.19 | 338.6x | +339% | |
| FY2022 Q3 | Fri Apr 01 2022 00:00:00 GM | $65.74 | $0.21 | 313.0x | +306% |
| FY2022 Q2 | Fri Dec 31 2021 00:00:00 GM | $55.06 | $0.42 | 131.1x | +70% |
| FY2022 Q1 | Fri Oct 01 2021 00:00:00 GM | $47.98 | $0.70 | 68.5x | -11% |
| FY2021 Q4 | Wed Jun 30 2021 00:00:00 GM | $66.28 | $1.12 | 59.2x | -23% |
| FY2021 Q3 | Fri Apr 02 2021 00:00:00 GM | $72.42 | $1.29 | 56.1x | -27% |
| FY2021 Q2 | Fri Jan 01 2021 00:00:00 GM | $88.06 | $1.44 | 61.2x | -21% |
| FY2021 Q1 | Fri Oct 02 2020 00:00:00 GM | $77.10 | $1.50 | 51.4x | -33% |
| FY2020 Q4 | $78.66 | $1.56 | 50.4x | -35% | |
| FY2020 Q3 | Fri Mar 27 2020 00:00:00 GM | $67.83 | $1.32 | 51.4x | -33% |
| FY2020 Q2 | Fri Dec 27 2019 00:00:00 GM | $70.30 | $1.18 | 59.6x | -23% |
Average P/E for displayed period: 77.1x
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Start ComparisonMRCY — Frequently Asked Questions
Quick answers to the most common questions about buying MRCY stock.
Is MRCY stock overvalued or undervalued?
MRCY trades at -135.5x P/E, below its 5-year average of 122.1x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does MRCY's valuation compare to peers?
Mercury Systems, Inc. P/E of -135.5x compares to sector median of 25.5x. The discount suggests lower growth expectations or higher risk.
What is MRCY's PEG ratio?
MRCY PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 1999-2023.