Intrusion Stock Price History
NASDAQ: INTZTelecommunicationsComputer Communications EquipmentUSD
0.6614-0.0228 (-3.33%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
INTZ price history at a glance
The price history for Intrusion (INTZ) on this page begins on May 18, 1992, when the stock closed at $360.00; it most recently closed at $0.6614 on October 5, 2026. The highest price in this record is $3,460.00, reached on September 18, 1995; the latest close is 100.0% below that peak. Across the 33 complete calendar years in the table, INTZ finished higher in 15 and lower in 18. Its best year was 2013 (+321.1%) and its worst was 2023 (-92.1%).
Over roughly 34 years the share price changed -99.8%, a -16.7% compound annual price return (excluding dividends). In the last 12 months alone, INTZ has lost 62.6%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 1992
- $3,460.00
- Date of high
- Sep 18, 1995
- Low since 1992
- $0.35
- Date of low
- Dec 23, 2024
- 52-week high
- $2.27
- 52-week low
- $0.59
- Last close
- $0.6614
INTZ returns
1 week
-8.14%
1 month
-21.26%
3 months
-29.64%
6 months
-17.33%
Year to date
-42.49%
1 year
-62.63%
3 years
-88.98%
5 years
-99.10%
INTZ price return, excluding dividends.
INTZ annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 0.6614 | -45.34% |
| 2025 | 1.21 | -71.19% |
| 2024 | 4.20 | -16.00% |
| 2023 | 5.00 | -92.09% |
| 2022 | 63.20 | -8.14% |
| 2021 | 68.80 | -80.48% |
| 2020 | 352.40 | +219.20% |
| 2019 | 110.40 | +42.64% |
| 2018 | 77.40 | +209.60% |
| 2017 | 25.00 | +190.70% |
| 2016 | 8.60 | -60.55% |
| 2015 | 21.80 | -61.07% |
| 2014 | 56.00 | +75.00% |
| 2013 | 32.00 | +321.05% |
| 2012 | 7.60 | -49.33% |
| 2011 | 15.00 | +1.35% |
| 2010 | 14.80 | +85.00% |
| 2009 | 8.00 | +14.29% |
| 2008 | 7.00 | +105.88% |
| 2007 | 3.40 | -63.04% |
| 2006 | 9.20 | -78.10% |
| 2005 | 42.00 | -27.84% |
| 2004 | 58.20 | +13.67% |
| 2003 | 51.20 | +77.78% |
| 2002 | 28.80 | -81.54% |
| 2001 | 156.00 | -58.95% |
| 2000 | 380.00 | -47.59% |
| 1999 | 725.00 | +202.08% |
| 1998 | 240.00 | -55.14% |
| 1997 | 535.00 | -49.53% |
| 1996 | 1,060.00 | -47.52% |
| 1995 | 2,020.00 | +73.39% |
| 1994 | 1,165.00 | +111.82% |
| 1993 | 550.00 | -21.43% |
| 1992* | 700.00 | +94.44% |
* Partial year: the record begins after the start of 1992; return measured from the first available close.
2026 return is year to date.
INTZ daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 0.691 | 0.7093 | 0.625 | 0.6614 | -3.33% | |
| 0.70 | 0.70 | 0.6811 | 0.6842 | -2.31% | |
| 0.729 | 0.7398 | 0.6901 | 0.7004 | -1.35% | |
| 0.69 | 0.71 | 0.69 | 0.71 | +2.90% | |
| 0.71 | 0.74 | 0.69 | 0.69 | -4.17% | |
| 0.71 | 0.73 | 0.70 | 0.72 | +1.41% | |
| 0.72 | 0.72 | 0.71 | 0.71 | -1.39% | |
| 0.71 | 0.77 | 0.70 | 0.72 | -1.37% | |
| 0.66 | 0.76 | 0.66 | 0.73 | +8.96% | |
| 0.71 | 0.72 | 0.67 | 0.67 | -5.63% | |
| 0.72 | 0.75 | 0.70 | 0.71 | -2.74% | |
| 0.76 | 0.76 | 0.72 | 0.73 | -3.95% | |
| 0.76 | 0.80 | 0.72 | 0.76 | +1.33% | |
| 0.76 | 0.79 | 0.70 | 0.75 | 0.00% | |
| 0.70 | 0.80 | 0.68 | 0.75 | +22.95% | |
| 0.75 | 0.80 | 0.61 | 0.61 | -19.74% | |
| 0.74 | 0.78 | 0.73 | 0.76 | -1.30% | |
| 0.78 | 0.80 | 0.75 | 0.77 | -3.75% | |
| 0.86 | 0.86 | 0.80 | 0.80 | -10.11% | |
| 0.82 | 0.94 | 0.81 | 0.89 | +4.71% | |
| 0.80 | 0.85 | 0.79 | 0.85 | +3.66% | |
| 0.83 | 0.83 | 0.80 | 0.82 | -2.38% | |
| 0.83 | 0.85 | 0.80 | 0.84 | -1.18% | |
| 0.78 | 0.85 | 0.75 | 0.85 | +8.97% | |
| 0.81 | 0.81 | 0.76 | 0.78 | -6.02% | |
| 0.83 | 0.87 | 0.80 | 0.83 | -3.49% | |
| 0.83 | 0.88 | 0.82 | 0.86 | 0.00% | |
| 0.90 | 0.90 | 0.80 | 0.86 | -4.44% | |
| 0.78 | 0.93 | 0.75 | 0.90 | +13.92% | |
| 0.82 | 0.88 | 0.76 | 0.79 | -2.47% | |
| 0.72 | 0.85 | 0.69 | 0.81 | +17.39% | |
| 0.61 | 0.70 | 0.60 | 0.69 | +15.00% | |
| 0.62 | 0.65 | 0.59 | 0.60 | -3.23% | |
| 0.65 | 0.66 | 0.62 | 0.62 | -3.13% | |
| 0.63 | 0.65 | 0.63 | 0.64 | 0.00% | |
| 0.66 | 0.66 | 0.63 | 0.64 | +1.59% | |
| 0.63 | 0.67 | 0.62 | 0.63 | 0.00% | |
| 0.64 | 0.67 | 0.63 | 0.63 | -3.08% | |
| 0.67 | 0.68 | 0.64 | 0.65 | -2.99% | |
| 0.66 | 0.68 | 0.66 | 0.67 | 0.00% | |
| 0.66 | 0.68 | 0.66 | 0.67 | +1.52% | |
| 0.70 | 0.71 | 0.65 | 0.66 | -19.51% | |
| 0.72 | 0.82 | 0.72 | 0.82 | +7.89% | |
| 0.75 | 0.76 | 0.71 | 0.76 | 0.00% | |
| 0.75 | 0.77 | 0.75 | 0.76 | 0.00% | |
| 0.76 | 0.79 | 0.75 | 0.76 | -1.30% | |
| 0.77 | 0.80 | 0.76 | 0.77 | 0.00% | |
| 0.76 | 0.78 | 0.76 | 0.77 | 0.00% | |
| 0.76 | 0.80 | 0.75 | 0.77 | 0.00% | |
| 0.78 | 0.79 | 0.75 | 0.77 | -2.53% | |
| 0.73 | 0.79 | 0.73 | 0.79 | +3.95% | |
| 0.78 | 0.78 | 0.73 | 0.76 | -2.56% | |
| 0.74 | 0.78 | 0.72 | 0.78 | +4.00% | |
| 0.75 | 0.77 | 0.74 | 0.75 | 0.00% | |
| 0.77 | 0.77 | 0.74 | 0.75 | 0.00% | |
| 0.82 | 0.82 | 0.74 | 0.75 | -7.41% | |
| 0.86 | 0.88 | 0.80 | 0.81 | -5.81% | |
| 0.87 | 0.90 | 0.85 | 0.86 | -6.52% | |
| 0.91 | 0.92 | 0.85 | 0.92 | 0.00% | |
| 0.91 | 0.92 | 0.91 | 0.92 | +1.10% | |
| 0.91 | 0.92 | 0.88 | 0.91 | 0.00% | |
| 0.91 | 0.98 | 0.87 | 0.91 | -2.15% | |
| 0.98 | 1.03 | 0.91 | 0.93 | -8.82% | |
| 0.94 | 1.07 | 0.86 | 1.02 | +8.51% | |
| 0.87 | 0.94 | 0.85 | 0.94 | +8.05% | |
| 0.90 | 0.91 | 0.84 | 0.87 | -3.33% | |
| 0.87 | 0.93 | 0.85 | 0.90 | +3.45% | |
| 0.80 | 0.93 | 0.80 | 0.87 | +7.41% | |
| 0.77 | 0.85 | 0.76 | 0.81 | +1.25% | |
| 0.76 | 0.85 | 0.73 | 0.80 | -2.44% | |
| 0.90 | 0.90 | 0.70 | 0.82 | -11.83% | |
| 0.92 | 1.08 | 0.85 | 0.93 | +36.76% | |
| 0.68 | 0.70 | 0.67 | 0.68 | +3.03% | |
| 0.68 | 0.71 | 0.66 | 0.66 | -4.35% | |
| 0.69 | 0.73 | 0.68 | 0.69 | +1.47% | |
| 0.71 | 0.72 | 0.68 | 0.68 | -4.23% | |
| 0.71 | 0.73 | 0.70 | 0.71 | 0.00% | |
| 0.72 | 0.74 | 0.71 | 0.71 | +1.43% | |
| 0.82 | 0.82 | 0.70 | 0.70 | -13.58% | |
| 0.77 | 0.83 | 0.77 | 0.81 | +6.58% | |
| 0.82 | 0.82 | 0.76 | 0.76 | -9.52% | |
| 0.80 | 0.87 | 0.80 | 0.84 | +12.00% | |
| 0.71 | 0.81 | 0.71 | 0.75 | +2.74% | |
| 0.73 | 0.75 | 0.71 | 0.73 | 0.00% | |
| 0.69 | 0.75 | 0.68 | 0.73 | +5.80% | |
| 0.73 | 0.77 | 0.69 | 0.69 | -5.48% | |
| 0.77 | 0.78 | 0.72 | 0.73 | -5.19% | |
| 0.78 | 0.78 | 0.72 | 0.77 | -2.53% | |
| 0.77 | 0.81 | 0.76 | 0.79 | 0.00% | |
| 0.84 | 0.85 | 0.76 | 0.79 | -5.95% | |
| 0.79 | 0.90 | 0.78 | 0.84 | +7.69% | |
| 0.81 | 0.83 | 0.76 | 0.78 | -6.02% | |
| 0.80 | 0.83 | 0.79 | 0.83 | +2.47% | |
| 0.79 | 0.83 | 0.78 | 0.81 | +2.53% | |
| 0.84 | 0.85 | 0.79 | 0.79 | -7.06% | |
| 0.82 | 0.86 | 0.81 | 0.85 | +4.94% | |
| 0.79 | 0.82 | 0.75 | 0.81 | +2.53% | |
| 0.74 | 0.80 | 0.73 | 0.79 | +6.76% | |
| 0.72 | 0.76 | 0.72 | 0.74 | +1.37% | |
| 0.70 | 0.75 | 0.69 | 0.73 | +1.39% | |
| 0.74 | 0.74 | 0.72 | 0.72 | -2.70% | |
| 0.72 | 0.74 | 0.71 | 0.74 | -5.13% | |
| 0.75 | 0.80 | 0.74 | 0.78 | +2.63% | |
| 0.73 | 0.78 | 0.73 | 0.76 | +2.70% | |
| 0.75 | 0.77 | 0.74 | 0.74 | -1.33% | |
| 0.77 | 0.80 | 0.74 | 0.75 | -2.60% | |
| 0.81 | 0.81 | 0.77 | 0.77 | -3.75% | |
| 0.79 | 0.83 | 0.78 | 0.80 | +1.27% | |
| 0.77 | 0.80 | 0.74 | 0.79 | +6.76% | |
| 0.76 | 0.79 | 0.73 | 0.74 | -3.90% | |
| 0.79 | 0.81 | 0.73 | 0.77 | -2.53% | |
| 0.81 | 0.82 | 0.79 | 0.79 | -1.25% | |
| 0.77 | 0.83 | 0.77 | 0.80 | +3.90% | |
| 0.79 | 0.80 | 0.76 | 0.77 | -1.28% | |
| 0.81 | 0.84 | 0.78 | 0.78 | -3.70% | |
| 0.82 | 0.85 | 0.81 | 0.81 | -3.57% | |
| 0.84 | 0.86 | 0.82 | 0.84 | +5.00% | |
| 0.87 | 0.89 | 0.80 | 0.80 | -6.98% | |
| 0.88 | 0.90 | 0.86 | 0.86 | +2.38% | |
| 0.91 | 0.91 | 0.82 | 0.84 | -5.62% | |
| 0.91 | 0.92 | 0.88 | 0.89 | -2.20% | |
| 0.94 | 0.97 | 0.90 | 0.91 | 0.00% | |
| 0.99 | 1.00 | 0.90 | 0.91 | -3.19% | |
| 0.90 | 0.96 | 0.89 | 0.94 | +4.44% | |
| 0.84 | 0.90 | 0.80 | 0.90 | +12.50% | |
| 0.82 | 0.82 | 0.79 | 0.80 | 0.00% | |
| 0.82 | 0.87 | 0.80 | 0.80 | -3.61% | |
| 0.81 | 0.86 | 0.80 | 0.83 | 0.00% | |
| 0.88 | 0.88 | 0.81 | 0.83 | +2.47% | |
| 0.88 | 0.88 | 0.79 | 0.81 | -6.90% | |
| 0.90 | 0.92 | 0.87 | 0.87 | 0.00% | |
| 0.82 | 0.92 | 0.82 | 0.87 | +4.82% | |
| 0.83 | 0.84 | 0.81 | 0.83 | +1.22% | |
| 0.82 | 0.87 | 0.82 | 0.82 | -1.20% | |
| 0.86 | 0.88 | 0.76 | 0.83 | -5.68% | |
| 0.85 | 0.89 | 0.83 | 0.88 | +6.02% | |
| 0.97 | 1.00 | 0.82 | 0.83 | -15.31% | |
| 0.91 | 1.06 | 0.86 | 0.98 | -5.77% | |
| 1.14 | 1.14 | 1.04 | 1.04 | -7.96% | |
| 1.19 | 1.19 | 1.12 | 1.13 | -3.42% | |
| 1.20 | 1.21 | 1.10 | 1.17 | -4.10% | |
| 1.05 | 1.32 | 1.03 | 1.22 | +15.09% | |
| 1.08 | 1.14 | 1.06 | 1.06 | -1.85% | |
| 1.20 | 1.20 | 1.07 | 1.08 | -9.24% | |
| 1.08 | 1.20 | 1.06 | 1.19 | +12.26% | |
| 1.07 | 1.13 | 1.03 | 1.06 | -0.93% | |
| 1.18 | 1.18 | 1.06 | 1.07 | -7.76% | |
| 1.19 | 1.21 | 1.11 | 1.16 | -1.69% | |
| 1.07 | 1.19 | 1.06 | 1.18 | +8.26% | |
| 1.05 | 1.09 | 1.04 | 1.09 | +2.83% | |
| 1.02 | 1.09 | 1.02 | 1.06 | +0.95% | |
| 1.08 | 1.08 | 1.02 | 1.05 | -0.94% | |
| 1.04 | 1.06 | 1.01 | 1.06 | +3.92% | |
| 1.07 | 1.07 | 0.99 | 1.02 | -4.67% | |
| 1.04 | 1.12 | 1.04 | 1.07 | -1.83% | |
| 1.14 | 1.19 | 1.01 | 1.09 | -2.68% | |
| 0.90 | 1.13 | 0.90 | 1.12 | +24.44% | |
| 0.92 | 0.92 | 0.87 | 0.90 | 0.00% | |
| 0.80 | 0.91 | 0.80 | 0.90 | +15.38% | |
| 0.85 | 0.85 | 0.75 | 0.78 | -7.14% | |
| 0.91 | 0.91 | 0.82 | 0.84 | -6.67% | |
| 0.89 | 0.93 | 0.87 | 0.90 | +1.12% | |
| 0.89 | 0.99 | 0.85 | 0.89 | -1.11% | |
| 0.94 | 0.95 | 0.90 | 0.90 | -4.26% | |
| 0.96 | 1.02 | 0.91 | 0.94 | -2.08% | |
| 1.00 | 1.00 | 0.90 | 0.96 | -3.03% | |
| 1.04 | 1.04 | 0.95 | 0.99 | -1.00% | |
| 1.05 | 1.12 | 1.00 | 1.00 | -3.85% | |
| 1.00 | 1.07 | 0.92 | 1.04 | +13.04% | |
| 0.90 | 0.95 | 0.87 | 0.92 | +4.55% | |
| 0.88 | 0.92 | 0.86 | 0.88 | -9.28% | |
| 1.01 | 1.02 | 0.94 | 0.97 | -3.00% | |
| 1.04 | 1.05 | 0.90 | 1.00 | -3.85% | |
| 1.06 | 1.06 | 1.02 | 1.04 | 0.00% | |
| 1.08 | 1.10 | 1.03 | 1.04 | -3.70% | |
| 1.15 | 1.15 | 1.04 | 1.08 | -5.26% | |
| 1.19 | 1.19 | 1.11 | 1.14 | -3.39% | |
| 1.21 | 1.23 | 1.15 | 1.18 | -3.28% | |
| 1.29 | 1.29 | 1.20 | 1.22 | -6.15% | |
| 1.30 | 1.35 | 1.27 | 1.30 | 0.00% | |
| 1.25 | 1.32 | 1.22 | 1.30 | +4.84% | |
| 1.30 | 1.32 | 1.21 | 1.24 | -4.62% | |
| 1.32 | 1.33 | 1.25 | 1.30 | -2.99% | |
| 1.48 | 1.48 | 1.28 | 1.34 | -8.84% | |
| 1.43 | 1.48 | 1.40 | 1.47 | +2.80% | |
| 1.50 | 1.50 | 1.35 | 1.43 | -4.67% | |
| 1.34 | 1.52 | 1.34 | 1.50 | +14.50% | |
| 1.23 | 1.33 | 1.20 | 1.31 | +5.65% | |
| 1.23 | 1.26 | 1.21 | 1.24 | 0.00% | |
| 1.21 | 1.27 | 1.21 | 1.24 | +1.64% | |
| 1.23 | 1.26 | 1.20 | 1.22 | +0.83% | |
| 1.25 | 1.27 | 1.19 | 1.21 | -3.97% | |
| 1.20 | 1.27 | 1.20 | 1.26 | +4.13% | |
| 1.16 | 1.21 | 1.16 | 1.21 | +5.22% | |
| 1.16 | 1.20 | 1.14 | 1.15 | -0.86% | |
| 1.18 | 1.19 | 1.15 | 1.16 | -3.33% | |
| 1.14 | 1.20 | 1.13 | 1.20 | +0.84% | |
| 1.24 | 1.24 | 1.17 | 1.19 | -5.56% | |
| 1.28 | 1.28 | 1.24 | 1.26 | -2.33% | |
| 1.29 | 1.32 | 1.27 | 1.29 | -3.01% | |
| 1.27 | 1.36 | 1.25 | 1.33 | +3.91% | |
| 1.25 | 1.28 | 1.24 | 1.28 | +0.79% | |
| 1.21 | 1.28 | 1.21 | 1.27 | +4.10% | |
| 1.33 | 1.34 | 1.19 | 1.22 | -8.27% | |
| 1.29 | 1.33 | 1.27 | 1.33 | +3.10% | |
| 1.45 | 1.45 | 1.27 | 1.29 | -11.64% | |
| 1.46 | 1.48 | 1.44 | 1.46 | +1.39% | |
| 1.44 | 1.48 | 1.40 | 1.44 | -2.04% | |
| 1.46 | 1.55 | 1.43 | 1.47 | +1.38% | |
| 1.47 | 1.53 | 1.45 | 1.45 | -3.33% | |
| 1.49 | 1.55 | 1.49 | 1.50 | +0.67% | |
| 1.50 | 1.56 | 1.47 | 1.49 | -3.25% | |
| 1.37 | 1.54 | 1.36 | 1.54 | +9.22% | |
| 1.35 | 1.44 | 1.32 | 1.41 | +5.22% | |
| 1.35 | 1.40 | 1.33 | 1.34 | -0.74% | |
| 1.40 | 1.40 | 1.32 | 1.35 | -4.93% | |
| 1.39 | 1.47 | 1.39 | 1.42 | +2.90% | |
| 1.37 | 1.45 | 1.37 | 1.38 | 0.00% | |
| 1.39 | 1.39 | 1.35 | 1.38 | -1.43% | |
| 1.27 | 1.41 | 1.27 | 1.40 | +9.37% | |
| 1.29 | 1.32 | 1.20 | 1.28 | -0.78% | |
| 1.40 | 1.45 | 1.28 | 1.29 | -5.84% | |
| 1.45 | 1.45 | 1.34 | 1.37 | -5.52% | |
| 1.36 | 1.45 | 1.32 | 1.45 | +6.62% | |
| 1.41 | 1.44 | 1.33 | 1.36 | -5.56% | |
| 1.33 | 1.46 | 1.30 | 1.44 | +2.86% | |
| 1.60 | 1.62 | 1.40 | 1.40 | -13.04% | |
| 1.68 | 1.71 | 1.61 | 1.61 | -8.00% | |
| 1.78 | 1.78 | 1.70 | 1.75 | -2.23% | |
| 1.72 | 1.80 | 1.70 | 1.79 | +7.19% | |
| 1.66 | 1.72 | 1.60 | 1.67 | -2.91% | |
| 1.75 | 1.78 | 1.68 | 1.72 | -2.82% | |
| 1.75 | 1.83 | 1.75 | 1.77 | -0.56% | |
| 1.80 | 1.85 | 1.73 | 1.78 | -3.78% | |
| 1.86 | 1.91 | 1.80 | 1.85 | -1.07% | |
| 1.77 | 1.89 | 1.77 | 1.87 | +5.65% | |
| 1.81 | 1.82 | 1.75 | 1.77 | -2.75% | |
| 1.91 | 1.93 | 1.82 | 1.82 | -4.71% | |
| 1.90 | 2.00 | 1.90 | 1.91 | +0.53% | |
| 1.94 | 1.94 | 1.81 | 1.90 | +0.53% | |
| 1.85 | 1.94 | 1.84 | 1.89 | +4.42% | |
| 1.76 | 1.85 | 1.72 | 1.81 | +1.69% | |
| 1.92 | 1.92 | 1.75 | 1.78 | -7.77% | |
| 1.98 | 1.99 | 1.88 | 1.93 | -2.53% | |
| 1.95 | 1.99 | 1.87 | 1.98 | +7.61% | |
| 1.95 | 1.96 | 1.80 | 1.84 | -8.00% | |
| 2.17 | 2.27 | 1.95 | 2.00 | -2.91% | |
| 1.95 | 2.10 | 1.91 | 2.06 | +10.75% | |
| 1.80 | 1.90 | 1.73 | 1.86 | +5.08% | |
| 1.73 | 1.81 | 1.70 | 1.77 | +1.72% | |
| 1.83 | 1.86 | 1.73 | 1.74 | -1.69% | |
| 1.75 | 1.81 | 1.73 | 1.77 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the INTZ chart for longer ranges.