--- url: https://finance.yahoo.com/quote/INTZ/history?p=INTZ&period1=1573776000&period2=1573948800&frequency=1d title: Intrusion Inc. (INTZ) Stock Historical Prices & Data - Yahoo Finance description: Discover historical prices for INTZ stock on Yahoo Finance. View daily, weekly or monthly format back to when Intrusion Inc. stock was issued. access_date: 2026-07-21T22:01:01.000Z current_date: 2026-07-21T22:01:01.726Z --- Skip to navigation Skip to main content Skip to right column ### U.S. markets closed U.S. markets closed S&P 500 7,509.20 +65.92 +0.89% Dow 30 52,224.64 +385.38 +0.74% Nasdaq 25,837.21 +329.13 +1.29% Russell 2000 2,987.40 +44.97 +1.53% VIX 17.05 \-1.60 \-8.58% Gold 4,082.20 +5.80 +0.14% Bitcoin USD 66,316.10 +1,209.32 +1.86% Crude Oil Sep 26 84.54 +0.20 +0.24% INTZ Intrusion Inc. 0.8755 +2.34% NasdaqCM - Nasdaq Real Time Price USD # Intrusion Inc. (INTZ) Get top stock picks 0.8555 \-0.0615 (-6.71%) At close: 4:00:01 PM EDT 0.8755 +0.0200 (+2.34%) After hours: 5:19:49 PM EDT Nov 15, 2019 - Nov 17, 2019 Historical Prices Daily Currency in USD Download | Date | Open | High | Low | Close Close price adjusted for splits. | Adj Close Adjusted close price adjusted for splits and dividend and/or capital gain distributions. | Volume | | ------------ | -------- | -------- | -------- | -------------------------------------- | -------------------------------------------------------------------------------------------------- | ------ | | Nov 15, 2019 | 103.6000 | 104.0000 | 100.0000 | 104.0000 | 104.0000 | 280 | VRAR AIXC AIxCrypto Holdings, Inc. **0.7771** +12.35% BKS.L Beeks Financial Cloud Group plc **217.50** +11.54% CGNT Cognyte Software Ltd. **8.60** \-1.15% REKR Rekor Systems, Inc. **0.6253** +2.17% PRGS Progress Software Corporation **39.46** \-0.10% FLYW Flywire Corporation **17.47** \-3.11% DTSS Datasea Intelligent Technology Ltd. **0.8372** +10.06% MLGO MicroAlgo Inc. **4.1500** +2.72% PAYS Paysign, Inc. **8.98** +1.13%