nLIGHT, Inc. (LASR) P/E Ratio History
Deep ValueTrading at -135.8x · 0th percentile of 5-year range · Significant discount to historical valuation · Data 2018–2019
Loading P/E history...
P/E Ratio Analysis
As of June 23, 2026, nLIGHT, Inc. (LASR) trades at a price-to-earnings ratio of -135.8x, with a stock price of $65.20 and trailing twelve-month earnings per share of $-0.25.
The current P/E is 106% below its 5-year average of 2263.7x. Over the past five years, LASR's P/E has ranged from a low of 49.6x to a high of 13050.0x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Technology sector median P/E of 28.3x, LASR trades at a 580% discount to its sector peers. The sector includes 353 companies with P/E ratios ranging from 0.0x to 189.7x.
Relative to the broader market, LASR trades at a notable discount to the S&P 500 median P/E of 24.3x. 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 LASR 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.
LASR Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
LASR P/E vs Peers
Optical, Photonics and Display Components peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $64B | 2415.0 | - | +105% | |
| $5B | 161.6 | - | +118% | |
| $28B | 96.2 | - | +56% | |
| $6B | 105.9 | 32.06 | -17% | |
| $12B | 352.9 | 68.90 | +225%Best | |
| $4B | 25.2Lowest | 1.55Best | +18% | |
| $508B | 73.9 | 4.15 | +1% | |
| $511B | 98.7 | 4.18 | +43% | |
| $17B | 125.1 | 3.47 | -32% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
LASR Historical P/E Data (2018–2019)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2019 Q3 | Sep 30 2019 | $15.66 | $0.00 | 13050.0x | +476% |
| FY2019 Q2 | Jun 30 2019 | $19.20 | $0.12 | 157.2x | -93% |
| FY2019 Q1 | Mar 31 2019 | $22.28 | $0.24 | 94.3x | -96% |
| FY2018 Q4 | Dec 31 2018 | $17.78 | $0.36 | 49.6x | -98% |
| FY2018 Q3 | Sep 30 2018 | $22.21 | $0.34 | 65.2x | -97% |
| FY2018 Q2 | Jun 30 2018 | $33.06 | $0.20 | 166.1x | -93% |
Average P/E for displayed period: 2263.7x
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
8+ years return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
LASR — Frequently Asked Questions
Quick answers to the most common questions about buying LASR stock.
What is LASR's P/E ratio?
nLIGHT, Inc. (LASR) trailing twelve-month P/E ratio is -135.8x, based on TTM diluted EPS of $-0.25. The 5-year average P/E is 2263.7x and the historical range spans 49.6x to 13050.0x.
Is LASR stock overvalued or undervalued?
LASR trades at -135.8x P/E, below its 5-year average of 2263.7x. At the 0th percentile of its historical range (49.6x–13050.0x), the stock is priced at a discount to its own history.
Is LASR stock expensive?
No, LASR is not expensive on a historical basis. The current P/E of -135.8x is below the 5-year average of 2263.7x and sits at the 0th percentile of its valuation range.
What is LASR's historical P/E range?
Over the past 5 years, LASR's P/E ratio has ranged from 49.6x to 13050.0x, with a median of 157.2x and an average of 2263.7x. The current P/E of -135.8x places the stock at the 0th percentile of this range. Full historical data spans 2018–2019.
How does LASR's P/E compare to the S&P 500?
LASR trades at -135.8x P/E versus the S&P 500 median of 24.3x. The 659% discount to the market suggests lower growth expectations or perceived higher risk.
How does LASR's valuation compare to Technology peers?
nLIGHT, Inc. P/E of -135.8x compares to the Technology sector median of 28.3x. 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 LASR's PEG ratio?
LASR PEG ratio is N/A, based on a P/E of -135.8x and EPS growth of 62.2%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is LASR's earnings yield?
LASR earnings yield is N/A, the inverse of its -135.8x 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.