Intrusion Inc. (INTZ) P/E Ratio History
Deep ValueTrading at -1.5x · 0th percentile of 5-year range · Significant discount to historical valuation · Data 1992–2020
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P/E Ratio Analysis
As of June 23, 2026, Intrusion Inc. (INTZ) trades at a price-to-earnings ratio of -1.5x, with a stock price of $0.71 and trailing twelve-month earnings per share of $-0.52.
The current P/E is 100% below its 5-year average of 1423.5x. Over the past five years, INTZ's P/E has ranged from a low of 268.6x to a high of 5750.0x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Technology sector median P/E of 28.3x, INTZ trades at a 105% 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, INTZ 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 INTZ 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.
INTZ Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
INTZ P/E vs Peers
Cybersecurity and identity management peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $4B | 19.9 | 1.05 | +17% | |
| $1B | 61.4 | 3.42 | +221%Best | |
| $3B | 31.0 | 0.80Best | +126% | |
| $195B | 179.0 | - | -56% | |
| $108B | 59.8 | 1.80 | +8% | |
| $13B | 12.5Lowest | 1.27 | +29% | |
| $479B | 47.7 | - | +0% |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
INTZ Historical P/E Data (1992–2020)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2020 Q2 | - | $114.70 | $0.02 | 4739.7x | +178% |
| FY2020 Q1 | - | $67.00 | $0.19 | 360.0x | -79% |
| FY2019 Q4 | - | $110.00 | $0.28 | 392.9x | -77% |
| FY2019 Q3 | Sep 30 2019 | $87.40 | $0.31 | 281.9x | -83% |
| FY2019 Q2 | Jun 30 2019 | $100.00 | $0.26 | 384.6x | -77% |
| FY2019 Q1 | Mar 31 2019 | $86.00 | $0.18 | 477.8x | -72% |
| FY2018 Q4 | Dec 31 2018 | $76.20 | $0.14 | 544.3x | -68% |
| FY2018 Q3 | Sep 30 2018 | $50.60 | $0.10 | 506.0x | -70% |
| FY2018 Q2 | Jun 30 2018 | $32.60 | $0.10 | 326.0x | -81% |
| FY2018 Q1 | Mar 31 2018 | $20.00 | $0.04 | 558.7x | -67% |
| FY2014 Q1 | Mar 31 2014 | $46.00 | $0.01 | 5750.0x | +238% |
| FY2013 Q4 | - | $26.40 | $0.03 | 774.2x | -55% |
| FY2013 Q3 | Sep 30 2013 | $21.00 | $0.01 | 1842.1x | +8% |
| FY2013 Q2 | Jun 30 2013 | $14.59 | $0.00 | 3039.6x | +78% |
| FY2013 Q1 | Mar 31 2013 | $9.00 | $0.00 | 1875.0x | +10% |
| FY2010 Q4 | Dec 31 2010 | $14.80 | $0.00 | 4774.2x | +180% |
| FY2010 Q3 | - | $21.80 | $0.06 | 384.5x | -77% |
| FY2010 Q2 | Jun 30 2010 | $14.10 | $0.05 | 268.6x | -84% |
| FY2010 Q1 | Mar 31 2010 | $18.20 | $0.05 | 382.4x | -78% |
| FY2009 Q4 | - | $8.00 | $0.01 | 808.1x | -53% |
| FY2000 Q4 | Dec 31 2000 | $1520.00 | $4.44 | 342.3x | -80% |
| FY2000 Q3 | Sep 30 2000 | $3800.00 | $4.92 | 772.4x | -55% |
| FY2000 Q2 | Jun 30 2000 | $3620.00 | $5.61 | 645.3x | -62% |
| FY2000 Q1 | Mar 31 2000 | $7680.00 | $7.04 | 1090.7x | -36% |
| FY1997 Q2 | Jun 30 1997 | $3800.00 | $0.71 | 5352.1x | +214% |
| FY1997 Q1 | Mar 31 1997 | $4000.00 | $1.29 | 3100.8x | +82% |
| FY1996 Q4 | - | $3840.00 | $2.57 | 1494.2x | -12% |
| FY1996 Q3 | Sep 30 1996 | $5440.00 | $3.26 | 1668.7x | -2% |
| FY1995 Q4 | Dec 31 1995 | $8080.00 | $3.26 | 2478.5x | +46% |
| FY1995 Q3 | Sep 30 1995 | $12480.00 | $3.31 | 3770.4x | +121% |
| FY1995 Q2 | Jun 30 1995 | $8400.00 | $2.87 | 2926.8x | +72% |
| FY1995 Q1 | Mar 31 1995 | $5560.00 | $2.43 | 2288.1x | +34% |
| FY1994 Q4 | Dec 31 1994 | $4660.00 | $2.11 | 2208.5x | +30% |
| FY1994 Q3 | Sep 30 1994 | $3080.00 | $1.91 | 1612.6x | -5% |
| FY1994 Q2 | - | $2040.00 | $1.55 | 1316.1x | -23% |
| FY1994 Q1 | - | $2640.00 | $1.47 | 1795.9x | +5% |
| FY1993 Q4 | Dec 31 1993 | $2200.00 | $1.27 | 1732.3x | +2% |
| FY1993 Q3 | - | $1480.00 | $1.22 | 1213.1x | -29% |
| FY1993 Q2 | Jun 30 1993 | $2160.00 | $1.38 | 1565.2x | -8% |
| FY1993 Q1 | Mar 31 1993 | $2480.00 | $1.30 | 1907.7x | +12% |
| FY1992 Q4 | - | $2800.00 | $1.34 | 2089.6x | +23% |
Average P/E for displayed period: 1703.5x
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
34+ years return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
INTZ — Frequently Asked Questions
Quick answers to the most common questions about buying INTZ stock.
What is INTZ's P/E ratio?
Intrusion Inc. (INTZ) trailing twelve-month P/E ratio is -1.5x, based on TTM diluted EPS of $-0.52. The 5-year average P/E is 1423.5x and the historical range spans 268.6x to 5750.0x.
Is INTZ stock overvalued or undervalued?
INTZ trades at -1.5x P/E, below its 5-year average of 1423.5x. At the 0th percentile of its historical range (268.6x–5750.0x), the stock is priced at a discount to its own history.
Is INTZ stock expensive?
No, INTZ is not expensive on a historical basis. The current P/E of -1.5x is below the 5-year average of 1423.5x and sits at the 0th percentile of its valuation range.
What is INTZ's historical P/E range?
Over the past 5 years, INTZ's P/E ratio has ranged from 268.6x to 5750.0x, with a median of 544.3x and an average of 1423.5x. The current P/E of -1.5x places the stock at the 0th percentile of this range. Full historical data spans 1992–2020.
How does INTZ's P/E compare to the S&P 500?
INTZ trades at -1.5x P/E versus the S&P 500 median of 24.3x. The 106% discount to the market suggests lower growth expectations or perceived higher risk.
How does INTZ's valuation compare to Technology peers?
Intrusion Inc. P/E of -1.5x 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 INTZ's PEG ratio?
INTZ PEG ratio is N/A, based on a P/E of -1.5x and EPS growth of 68.9%. PEG normalises P/E by growth and helps compare stocks with different earnings trajectories.
What is INTZ's earnings yield?
INTZ earnings yield is N/A, the inverse of its -1.5x 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.