nLIGHT, Inc. (LASR) P/E Ratio History
Historical price-to-earnings valuation from 2018 to 2019
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LASR Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, nLIGHT, Inc. (LASR) trades at a price-to-earnings ratio of -137.9x, with a stock price of $66.19 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 27.7x, LASR trades at a 598% discount to its sector peers. The sector includes 359 companies with P/E ratios ranging from 0.0x to 184.2x.
Relative to the broader market, LASR 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 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 P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $64B | 2412.9 | - | +105% | |
| $4B | 139.2 | - | +118% | |
| $20B | 68.8 | - | +56% | |
| $5B | 92.7 | 28.13 | -17% | |
| $12B | 340.3 | 74.57 | +225%Best | |
| $4B | 27.7Lowest | 1.67Best | +18% | |
| $326B | 47.4 | 2.76 | +1% | |
| $358B | 69.0 | 3.08 | +43% | |
| $14B | 98.6 | 2.85 | -32% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
LASR Historical P/E Data (2018–2019)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2019 Q3 | Mon Sep 30 2019 00:00:00 GM | $15.66 | $0.00 | 13050.0x | +476% |
| FY2019 Q2 | Sun Jun 30 2019 00:00:00 GM | $19.20 | $0.12 | 157.2x | -93% |
| FY2019 Q1 | Sun Mar 31 2019 00:00:00 GM | $22.28 | $0.24 | 94.3x | -96% |
| FY2018 Q4 | Mon Dec 31 2018 00:00:00 GM | $17.78 | $0.36 | 49.6x | -98% |
| FY2018 Q3 | Sun Sep 30 2018 00:00:00 GM | $22.21 | $0.34 | 65.2x | -97% |
| FY2018 Q2 | Sat Jun 30 2018 00:00:00 GM | $33.06 | $0.20 | 166.1x | -93% |
Average P/E for displayed period: 2263.7x
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Start ComparisonLASR — Frequently Asked Questions
Quick answers to the most common questions about buying LASR stock.
Is LASR stock overvalued or undervalued?
LASR trades at -137.9x P/E, below its 5-year average of 2263.7x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does LASR's valuation compare to peers?
nLIGHT, Inc. P/E of -137.9x compares to sector median of 27.7x. The discount suggests lower growth expectations or higher risk.
What is LASR's PEG ratio?
LASR PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2018-2019.