Inogen, Inc. (INGN) P/E Ratio History
Historical price-to-earnings valuation from 2014 to 2021
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INGN Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, Inogen, Inc. (INGN) trades at a price-to-earnings ratio of -8.5x, with a stock price of $7.19 and trailing twelve-month earnings per share of $-0.91.
The current P/E is 111% below its 5-year average of 79.9x. Over the past five years, INGN's P/E has ranged from a low of 33.3x to a high of 133.2x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Healthcare sector median P/E of 22.3x, INGN trades at a 138% discount to its sector peers. The sector includes 241 companies with P/E ratios ranging from 0.0x to 177.5x.
Relative to the broader market, INGN 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 INGN 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.
INGN P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $6B | 26.7 | - | -22% | |
| $3B | 31.7 | - | +24% | |
| $787M | 14.5 | 0.43Best | -35% | |
| $22B | 10.5Lowest | 0.64 | -24% | |
| $10B | 40.5 | 2.13 | +18% | |
| $1B | 67.8 | - | +103%Best | |
| $229B | 33.8 | 1.33 | +7% | |
| $989M | 95.2 | - | -90% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
INGN Historical P/E Data (2014–2021)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2021 Q3 | $43.09 | $0.49 | 88.5x | +17% | |
| FY2020 Q2 | $35.52 | $0.29 | 120.5x | +60% | |
| FY2020 Q1 | $51.66 | $0.62 | 82.7x | +10% | |
| FY2019 Q4 | $68.33 | $0.94 | 72.9x | -3% | |
| FY2019 Q3 | Mon Sep 30 2019 00:00:00 GM | $47.91 | $1.44 | 33.3x | -56% |
| FY2019 Q2 | Sun Jun 30 2019 00:00:00 GM | $66.76 | $1.86 | 35.9x | -52% |
| FY2019 Q1 | Sun Mar 31 2019 00:00:00 GM | $95.37 | $2.06 | 46.3x | -39% |
| FY2018 Q4 | Mon Dec 31 2018 00:00:00 GM | $124.17 | $2.30 | 54.0x | -28% |
| FY2018 Q3 | Sun Sep 30 2018 00:00:00 GM | $244.12 | $1.83 | 133.2x | +77% |
| FY2018 Q2 | Sat Jun 30 2018 00:00:00 GM | $186.33 | $1.43 | 130.1x | +72% |
| FY2018 Q1 | Sat Mar 31 2018 00:00:00 GM | $122.84 | $1.16 | 105.7x | +40% |
| FY2017 Q4 | Sun Dec 31 2017 00:00:00 GM | $119.08 | $0.95 | 125.0x | +66% |
Average P/E for displayed period: 75.4x
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Start ComparisonINGN — Frequently Asked Questions
Quick answers to the most common questions about buying INGN stock.
Is INGN stock overvalued or undervalued?
INGN trades at -8.5x P/E, below its 5-year average of 79.9x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does INGN's valuation compare to peers?
Inogen, Inc. P/E of -8.5x compares to sector median of 22.3x. The discount suggests lower growth expectations or higher risk.
What is INGN's PEG ratio?
INGN PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2014-2021.