NASDAQ:INTZ | Historical Stock Price | INTRUSION INC

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1992-05-21 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.41$2.48$15.00$90.92$550.97$3,339.001992-05-212026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$76.20$76.201,020
2018-12-28$76.00$76.002,070
2018-12-27$76.00$76.001,305
2018-12-26$76.20$76.201,890
2018-12-24$75.80$75.80310
2018-12-21$76.00$76.002,590
2018-12-20$71.80$71.80275
2018-12-19$71.60$71.60200
2018-12-18$69.80$69.8035
2018-12-17$68.00$68.001,410
2018-12-14$71.00$71.00420
2018-12-13$70.20$70.20550
2018-12-12$70.00$70.00245
2018-12-11$68.00$68.0085
2018-12-10$68.00$68.00325
2018-12-07$67.80$67.80300
2018-12-06$67.80$67.80410
2018-12-04$68.00$68.001,455
2018-12-03$72.00$72.002,270
2018-11-30$70.20$70.204,240
2018-11-29$72.00$72.00445
2018-11-28$75.40$75.404,920
2018-11-27$74.00$74.00290
2018-11-26$74.20$74.20460
2018-11-23$73.80$73.80105
2018-11-21$73.00$73.005,405
2018-11-20$66.60$66.60620
2018-11-19$67.00$67.00285
2018-11-16$66.80$66.801,370
2018-11-15$66.00$66.001,475
2018-11-14$61.60$61.60640
2018-11-13$61.00$61.002,590
2018-11-12$53.40$53.4010
2018-11-09$53.60$53.60110
2018-11-08$53.60$53.600
2018-11-07$53.60$53.605
2018-11-06$53.60$53.6070
2018-11-05$53.60$53.6090
2018-11-02$53.60$53.60480
2018-11-01$53.40$53.40520
2018-10-31$53.20$53.20220
2018-10-30$52.20$52.20105
2018-10-29$52.20$52.20400
2018-10-26$52.00$52.00355
2018-10-25$51.40$51.4050
2018-10-24$51.60$51.60335
2018-10-23$51.20$51.20270
2018-10-22$52.00$52.00230
2018-10-19$51.80$51.800
2018-10-18$51.80$51.8035
2018-10-17$51.60$51.60470
2018-10-16$50.80$50.80285
2018-10-15$49.40$49.40155
2018-10-12$49.00$49.0060
2018-10-11$49.00$49.00425
2018-10-10$50.40$50.40255
2018-10-09$49.20$49.20310
2018-10-08$49.60$49.60215
2018-10-05$51.00$51.00280
2018-10-04$51.80$51.8060
2018-10-03$50.20$50.2080
2018-10-02$50.60$50.600
2018-10-01$50.60$50.6095
2018-09-28$50.60$50.60520
2018-09-27$46.40$46.40140
2018-09-26$43.80$43.80250
2018-09-25$43.80$43.8030
2018-09-24$43.80$43.8055
2018-09-21$43.40$43.4010
2018-09-20$43.60$43.60125
2018-09-19$43.20$43.2060
2018-09-18$43.40$43.40125
2018-09-17$43.00$43.00235
2018-09-14$42.80$42.8065
2018-09-13$43.20$43.2090
2018-09-12$43.20$43.2010
2018-09-11$43.00$43.005
2018-09-10$43.20$43.200
2018-09-07$43.20$43.20200
2018-09-06$43.60$43.60305
2018-09-05$43.60$43.60410
2018-09-04$42.60$42.60180
2018-08-31$42.00$42.00555
2018-08-30$39.60$39.601,820
2018-08-29$42.80$42.8055
2018-08-28$42.00$42.00500
2018-08-27$41.80$41.80225
2018-08-24$41.20$41.20135
2018-08-23$40.00$40.002,330
2018-08-22$40.80$40.80550
2018-08-21$38.00$38.001,550
2018-08-20$39.00$39.00185
2018-08-17$39.00$39.005,420
2018-08-16$40.20$40.20905
2018-08-15$38.60$38.605,410
2018-08-14$29.00$29.00615
2018-08-13$29.00$29.0020
2018-08-10$29.00$29.00430
2018-08-09$30.00$30.005
2018-08-08$30.00$30.000
2018-08-07$30.00$30.000
2018-08-06$30.00$30.00945
2018-08-03$32.00$32.00610
2018-08-02$33.00$33.00205
2018-08-01$32.20$32.20230
2018-07-31$32.00$32.0060
2018-07-30$31.00$31.0090
2018-07-27$30.00$30.0060
2018-07-26$29.00$29.00530
2018-07-25$31.00$31.00185
2018-07-24$30.00$30.0085
2018-07-23$32.00$32.00305
2018-07-20$32.00$32.000
2018-07-19$32.00$32.00120
2018-07-18$31.60$31.601,115
2018-07-17$32.00$32.001,735
2018-07-16$31.00$31.002,885
2018-07-13$32.60$32.600
2018-07-12$32.60$32.60505
2018-07-11$31.20$31.200
2018-07-10$31.20$31.2075
2018-07-09$32.20$32.20215
2018-07-06$32.20$32.2035
2018-07-05$32.00$32.00165
2018-07-03$32.20$32.2075
2018-07-02$32.20$32.2015
2018-06-29$32.60$32.60100
2018-06-28$32.00$32.00580
2018-06-27$31.00$31.00245
2018-06-26$30.20$30.2050
2018-06-25$30.20$30.2065
2018-06-22$30.60$30.6075
2018-06-21$30.60$30.60545
2018-06-20$29.80$29.8020
2018-06-19$29.80$29.8035
2018-06-18$29.80$29.8050
2018-06-15$30.60$30.60220
2018-06-14$29.80$29.8040
2018-06-13$30.20$30.20275
2018-06-12$30.20$30.2085
2018-06-11$30.00$30.00560
2018-06-08$29.00$29.000
2018-06-07$29.00$29.00115
2018-06-06$30.00$30.00145
2018-06-05$30.00$30.00245
2018-06-04$31.00$31.0075
2018-06-01$30.20$30.200
2018-05-31$30.20$30.200
2018-05-30$30.20$30.20165
2018-05-29$29.40$29.4085
2018-05-25$29.40$29.40265
2018-05-24$29.00$29.00300
2018-05-23$29.00$29.001,290
2018-05-22$29.00$29.001,525
2018-05-21$27.00$27.00155
2018-05-18$26.00$26.002,145
2018-05-17$23.00$23.00880
2018-05-16$22.00$22.005
2018-05-15$22.00$22.0025
2018-05-14$22.00$22.00305
2018-05-11$22.00$22.00260
2018-05-10$22.80$22.801,300
2018-05-09$19.80$19.80185
2018-05-08$19.80$19.80255
2018-05-07$19.80$19.80400
2018-05-04$20.00$20.000
2018-05-03$20.00$20.0010
2018-05-02$20.00$20.000
2018-05-01$20.00$20.00155
2018-04-30$20.00$20.0025
2018-04-27$20.00$20.000
2018-04-26$20.00$20.000
2018-04-25$20.00$20.000
2018-04-24$20.00$20.005
2018-04-23$20.00$20.000
2018-04-20$20.00$20.000
2018-04-19$20.00$20.005
2018-04-18$20.00$20.00305
2018-04-17$20.00$20.000
2018-04-16$20.00$20.0050
2018-04-13$20.00$20.000
2018-04-12$20.00$20.000
2018-04-11$20.00$20.000
2018-04-10$20.00$20.0040
2018-04-09$20.00$20.000
2018-04-06$20.00$20.000
2018-04-05$20.00$20.000
2018-04-04$20.00$20.000
2018-04-03$20.00$20.000
2018-04-02$20.00$20.000
2018-03-29$20.00$20.0030
2018-03-28$20.00$20.000
2018-03-27$20.00$20.000
2018-03-26$20.00$20.000
2018-03-23$20.00$20.000
2018-03-22$20.00$20.000
2018-03-21$20.00$20.000
2018-03-20$20.00$20.00620
2018-03-19$23.00$23.00110
2018-03-16$23.00$23.000
2018-03-15$23.00$23.000
2018-03-14$23.00$23.0020
2018-03-13$24.80$24.800
2018-03-12$24.80$24.8045
2018-03-09$25.00$25.000
2018-03-08$25.00$25.0025
2018-03-07$25.00$25.0055
2018-03-06$24.40$24.4050
2018-03-05$24.40$24.4015
2018-03-02$24.40$24.4065
2018-03-01$24.40$24.4015
2018-02-28$23.00$23.00260
2018-02-27$24.40$24.400
2018-02-26$24.40$24.4010
2018-02-23$24.00$24.005
2018-02-22$24.00$24.00330
2018-02-21$24.20$24.2035
2018-02-20$24.20$24.200
2018-02-16$24.20$24.200
2018-02-15$24.20$24.2010
2018-02-14$22.40$22.4070
2018-02-13$22.00$22.001,940
2018-02-12$18.40$18.40220
2018-02-09$20.00$20.0025
2018-02-08$20.00$20.0075
2018-02-07$20.00$20.000
2018-02-06$20.00$20.00115
2018-02-05$20.00$20.000
2018-02-02$20.00$20.000
2018-02-01$20.00$20.000
2018-01-31$20.00$20.0050
2018-01-30$21.60$21.600
2018-01-29$21.60$21.60100
2018-01-26$21.80$21.80190
2018-01-25$19.80$19.8040
2018-01-24$19.60$19.6050
2018-01-23$20.80$20.80330
2018-01-22$23.20$23.20240
2018-01-19$22.00$22.000
2018-01-18$22.00$22.000
2018-01-17$22.00$22.000
2018-01-16$22.00$22.00225
2018-01-12$21.60$21.600
2018-01-11$21.60$21.600
2018-01-10$21.60$21.600
2018-01-09$21.60$21.60160
2018-01-08$22.40$22.4030
2018-01-05$22.80$22.80550
2018-01-04$23.80$23.80260
2018-01-03$24.00$24.00210
2018-01-02$24.00$24.00685