Intrusion Inc. (INTZ) Stock Price History
Historical prices from 2011 to 2026
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INTZ Historical Performance
Short-Term Returns
INTZ Stock Price Trajectory (2011–2026)
As of May 8, 2026, Intrusion Inc. (INTZ) trades at $0.80, representing a -37.5% return over the past year. The stock has delivered a -99.6% total return over five years (-67.0% CAGR), reflecting challenging market conditions.
The stock reached its all-time high of $13,840.00 on September 20, 1995. From this peak, INTZ has corrected -100.0%, currently trading 42% below its 200-day moving average, suggesting potential weakness.
When compared to Technology sector peers QLYS (-25.6% 1Y), RDWR (+26.5% 1Y), and NTCT (+80.5% 1Y), INTZ has underperformed the peer group average. Compare INTZ vs QLYS →
INTZ Historical Price Data (2025–2026)
Showing 30 of 3,650 recordsLoading full history…
| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-05-07 | 0.81 | 0.83 | 0.78 | 0.80 | 103K | +1.29% |
| 2026-05-06 | 0.77 | 0.81 | 0.74 | 0.79 | 111K | +6.76% |
| 2026-05-05 | 0.76 | 0.79 | 0.73 | 0.74 | 135K | -3.97% |
| 2026-05-04 | 0.79 | 0.81 | 0.73 | 0.77 | 151K | -2.38% |
| 2026-05-01 | 0.81 | 0.82 | 0.79 | 0.79 | 42K | -0.74% |
| 2026-04-30 | 0.77 | 0.83 | 0.77 | 0.80 | 87K | +3.89% |
| 2026-04-29 | 0.79 | 0.80 | 0.76 | 0.77 | 126K | -1.87% |
| 2026-04-28 | 0.82 | 0.84 | 0.78 | 0.78 | 100K | -3.95% |
| 2026-04-27 | 0.82 | 0.85 | 0.81 | 0.81 | 97K | -3.31% |
| 2026-04-24 | 0.84 | 0.86 | 0.82 | 0.84 | 87K | +4.57% |
| 2026-04-23 | 0.87 | 0.89 | 0.80 | 0.80 | 123K | -6.87% |
| 2026-04-22 | 0.88 | 0.90 | 0.86 | 0.86 | 75K | +3.10% |
| 2026-04-21 | 0.89 | 0.89 | 0.82 | 0.84 | 103K | -5.98% |
| 2026-04-20 | 0.91 | 0.92 | 0.88 | 0.89 | 63K | -2.06% |
| 2026-04-17 | 0.94 | 0.96 | 0.91 | 0.91 | 68K | -0.38% |
| 2026-04-16 | 0.95 | 1.00 | 0.90 | 0.91 | 100K | -2.98% |
| 2026-04-15 | 0.90 | 0.96 | 0.89 | 0.94 | 65K | +6.27% |
| 2026-04-14 | 0.84 | 0.88 | 0.80 | 0.88 | 185K | +10.45% |
| 2026-04-13 | 0.82 | 0.82 | 0.79 | 0.80 | 64K | -0.14% |
| 2026-04-10 | 0.82 | 0.85 | 0.80 | 0.80 | 186K | -3.44% |
| 2026-04-09 | 0.81 | 0.86 | 0.80 | 0.83 | 193K | +0.11% |
| 2026-04-08 | 0.88 | 0.88 | 0.81 | 0.83 | 79K | +2.47% |
| 2026-04-07 | 0.88 | 0.88 | 0.79 | 0.81 | 154K | -7.37% |
| 2026-04-06 | 0.92 | 0.92 | 0.87 | 0.87 | 53K | +0.60% |
| 2026-04-02 | 0.82 | 0.92 | 0.82 | 0.87 | 106K | +4.13% |
| 2026-04-01 | 0.83 | 0.84 | 0.82 | 0.83 | 68K | +1.69% |
| 2026-03-31 | 0.82 | 0.86 | 0.82 | 0.82 | 92K | -2.58% |
| 2026-03-30 | 0.88 | 0.88 | 0.76 | 0.84 | 242K | -2.40% |
| 2026-03-27 | 0.85 | 0.90 | 0.83 | 0.86 | 102K | +3.73% |
| 2026-03-26 | 0.97 | 1.00 | 0.82 | 0.83 | 242K | -12.49% |
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View ValuationCompare INTZ vs NVDA
Side-by-side business, growth, and profitability comparison vs NVIDIA Corporation.
Start ComparisonINTZ — Frequently Asked Questions
Quick answers to the most common questions about buying INTZ stock.
How has INTZ stock performed recently?
INTZ declined -37.5% over the past year, below its 5-year annualized CAGR of -67.0%. The stock trades below its 200-day moving average, reflecting the downtrend.
What is INTZ's all-time high price?
Intrusion Inc. reached $13840.00 on 1995-09-20. The 52-week high is $2.64. Current 1-year return of -37.5% places the stock further from historical peaks.
Where can I download INTZ historical price data?
This page provides INTZ daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2011-2026, downloadable in CSV format.