LightPath Technologies, Inc. (LPTH) P/E Ratio History
Deep ValueTrading at -36.5x · 0th percentile of 5-year range · Significant discount to historical valuation · Data 2013–2021
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P/E Ratio Analysis
As of June 29, 2026, LightPath Technologies, Inc. (LPTH) trades at a price-to-earnings ratio of -36.5x, with a stock price of $13.13 and trailing twelve-month earnings per share of $-0.40.
The current P/E is 114% below its 5-year average of 257.3x. Over the past five years, LPTH's P/E has ranged from a low of 7.1x to a high of 3537.5x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Technology sector median P/E of 29.3x, LPTH trades at a 224% discount to its sector peers. The sector includes 358 companies with P/E ratios ranging from 0.0x to 196.8x.
Relative to the broader market, LPTH trades at a notable discount to the S&P 500 median P/E of 25.3x. 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 LPTH 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.
LPTH Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
LPTH P/E vs Peers
Photonics, Lasers and Optical Components peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $11B | 317.5 | 69.57 | +225%Best | |
| $58B | 2208.1 | - | +105% | |
| $1B | 37.2 | - | +124% | |
| $26B | 88.9 | - | +56% | |
| $29B | 33.1Lowest | 2.70Best | +10% | |
| $37B | 307.8 | - | -69% | |
| $54B | 34.1 | 3.25 | +8% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
LPTH Historical P/E Data (2013–2021)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2021 Q3 | Mar 31 2021 | $3.10 | $0.01 | 397.4x | +62% |
| FY2021 Q2 | - | $3.92 | $0.05 | 82.0x | -67% |
| FY2021 Q1 | Sep 30 2020 | $2.41 | $0.08 | 28.9x | -88% |
| FY2020 Q4 | - | $3.34 | $0.03 | 124.6x | -49% |
| FY2019 Q1 | Sep 30 2018 | $2.02 | $0.01 | 251.9x | +3% |
| FY2018 Q4 | Jun 30 2018 | $2.30 | $0.04 | 56.7x | -77% |
| FY2018 Q3 | Mar 31 2018 | $2.20 | $0.31 | 7.1x | -97% |
| FY2018 Q2 | Dec 31 2017 | $2.22 | $0.27 | 8.1x | -97% |
| FY2018 Q1 | Sep 30 2017 | $2.56 | $0.31 | 8.2x | -97% |
| FY2017 Q4 | Jun 30 2017 | $2.70 | $0.31 | 8.6x | -96% |
| FY2017 Q3 | Mar 31 2017 | $2.74 | $0.10 | 28.8x | -88% |
| FY2017 Q2 | Dec 31 2016 | $1.54 | $0.13 | 11.7x | -95% |
| FY2017 Q1 | Sep 30 2016 | $1.79 | $0.04 | 49.6x | -80% |
| FY2016 Q4 | - | $1.74 | $0.08 | 22.9x | -91% |
| FY2016 Q3 | - | $2.02 | $0.03 | 65.6x | -73% |
| FY2016 Q2 | - | $2.83 | $0.00 | 3537.5x | +1340% |
| FY2016 Q1 | Sep 30 2015 | $1.49 | $0.05 | 32.5x | -87% |
| FY2015 Q3 | - | $0.98 | $0.01 | 169.1x | -31% |
| FY2014 Q1 | Sep 30 2013 | $1.21 | $0.01 | 198.4x | -19% |
| FY2013 Q4 | Jun 30 2013 | $1.24 | $0.02 | 56.4x | -77% |
| FY2013 Q3 | Mar 31 2013 | $0.75 | $0.06 | 12.5x | -95% |
Average P/E for displayed period: 245.6x
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
13+ years return with dividends reinvested.
DCA Calculator
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Peer Comparison
Compare growth, multiples, and margins vs sector.
LPTH — Frequently Asked Questions
Quick answers to the most common questions about buying LPTH stock.
What is LPTH's P/E ratio?
LightPath Technologies, Inc. (LPTH) trailing twelve-month P/E ratio is -36.5x, based on TTM diluted EPS of $-0.40. The 5-year average P/E is 257.3x and the historical range spans 7.1x to 3537.5x.
Is LPTH stock overvalued or undervalued?
LPTH trades at -36.5x P/E, below its 5-year average of 257.3x. At the 0th percentile of its historical range (7.1x–3537.5x), the stock is priced at a discount to its own history.
Is LPTH stock expensive?
No, LPTH is not expensive on a historical basis. The current P/E of -36.5x is below the 5-year average of 257.3x and sits at the 0th percentile of its valuation range.
What is LPTH's historical P/E range?
Over the past 5 years, LPTH's P/E ratio has ranged from 7.1x to 3537.5x, with a median of 56.4x and an average of 257.3x. The current P/E of -36.5x places the stock at the 0th percentile of this range. Full historical data spans 2013–2021.
How does LPTH's P/E compare to the S&P 500?
LPTH trades at -36.5x P/E versus the S&P 500 median of 25.3x. The 244% discount to the market suggests lower growth expectations or perceived higher risk.
How does LPTH's valuation compare to Technology peers?
LightPath Technologies, Inc. P/E of -36.5x compares to the Technology sector median of 29.3x. The discount suggests lower growth expectations, weaker margins, or higher perceived risk relative to peers. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is LPTH's PEG ratio?
LPTH PEG ratio is N/A, based on a P/E of -36.5x and EPS growth of -71.4%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is LPTH's earnings yield?
LPTH earnings yield is N/A, the inverse of its -36.5x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.