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US · ALT

Altimmune, Inc.

Sector
Healthcare · Biotechnology
Headquarters
Gaithersburg, MD 20878

Price · as of 2026-09-04

$3.42

Market cap 267.42M

Price history

Weekly OHLC price history for ALT, USD per share
WeekOpenHighLowCloseVolume
May 22, 2017 – May 26, 2017$135.00$137.70$131.70$133.20
May 29, 2017 – Jun 2, 2017$132.00$133.77$123.30$128.100
Jun 5, 2017 – Jun 9, 2017$128.40$129.12$114.60$121.500
Jun 12, 2017 – Jun 16, 2017$120.00$125.25$104.25$106.200
Jun 19, 2017 – Jun 23, 2017$108.30$120.30$108.00$108.900
Jun 26, 2017 – Jun 30, 2017$108.90$111.90$87.00$96.000
Jul 3, 2017 – Jul 7, 2017$90.00$102.00$88.02$90.600
Jul 10, 2017 – Jul 14, 2017$90.60$92.10$71.40$81.000
Jul 17, 2017 – Jul 21, 2017$79.80$81.90$71.55$74.400
Jul 24, 2017 – Jul 28, 2017$73.80$88.50$70.50$80.700
Jul 31, 2017 – Aug 4, 2017$80.70$81.45$66.90$68.400
Aug 7, 2017 – Aug 11, 2017$68.10$73.50$66.60$69.900
Aug 14, 2017 – Aug 18, 2017$69.60$70.20$60.90$61.500
Aug 21, 2017 – Aug 25, 2017$60.90$71.40$60.30$65.100
Aug 28, 2017 – Sep 1, 2017$64.50$84.60$64.50$79.500
Sep 4, 2017 – Sep 8, 2017$81.60$81.60$72.60$72.600
Sep 11, 2017 – Sep 15, 2017$74.10$80.40$72.90$72.900
Sep 18, 2017 – Sep 22, 2017$73.20$78.90$64.50$74.400
Sep 25, 2017 – Sep 29, 2017$73.50$73.74$62.10$69.600
Oct 2, 2017 – Oct 6, 2017$71.10$71.82$65.70$68.100
Oct 9, 2017 – Oct 13, 2017$72.60$94.80$71.70$75.000
Oct 16, 2017 – Oct 20, 2017$74.10$84.00$72.63$79.800
Oct 23, 2017 – Oct 27, 2017$81.00$85.20$73.50$75.900
Oct 30, 2017 – Nov 3, 2017$75.90$75.90$64.50$65.700
Nov 6, 2017 – Nov 10, 2017$66.30$71.40$65.10$69.000
Nov 13, 2017 – Nov 17, 2017$68.40$70.50$60.00$64.500
Nov 20, 2017 – Nov 24, 2017$63.00$63.90$60.00$61.800
Nov 27, 2017 – Dec 1, 2017$60.30$61.20$53.40$54.000
Dec 4, 2017 – Dec 8, 2017$53.70$56.70$48.30$52.200
Dec 11, 2017 – Dec 15, 2017$52.50$55.20$45.30$48.300
Dec 18, 2017 – Dec 22, 2017$48.30$51.15$45.30$47.700
Dec 25, 2017 – Dec 29, 2017$49.20$61.62$48.30$59.700
Jan 1, 2018 – Jan 5, 2018$61.20$66.00$57.30$60.900
Jan 8, 2018 – Jan 12, 2018$61.80$61.80$57.60$58.800
Jan 15, 2018 – Jan 19, 2018$60.30$60.30$54.00$54.600
Jan 22, 2018 – Jan 26, 2018$54.60$58.50$54.00$54.600
Jan 29, 2018 – Feb 2, 2018$54.90$57.90$46.50$46.800
Feb 5, 2018 – Feb 9, 2018$46.80$50.70$45.60$46.800
Feb 12, 2018 – Feb 16, 2018$47.70$47.70$40.20$43.800
Feb 19, 2018 – Feb 23, 2018$44.40$48.00$42.90$45.600
Feb 26, 2018 – Mar 2, 2018$45.60$49.50$44.40$48.300
Mar 5, 2018 – Mar 9, 2018$48.60$55.47$42.90$52.500
Mar 12, 2018 – Mar 16, 2018$53.40$58.50$47.70$48.900
Mar 19, 2018 – Mar 23, 2018$48.30$49.50$42.90$45.900
Mar 26, 2018 – Mar 29, 2018$46.20$48.90$30.90$34.800
Apr 2, 2018 – Apr 6, 2018$35.70$36.00$26.40$27.870
Apr 9, 2018 – Apr 13, 2018$27.72$29.55$24.00$25.800
Apr 16, 2018 – Apr 20, 2018$26.40$26.40$20.40$21.240
Apr 23, 2018 – Apr 27, 2018$20.70$24.87$19.50$24.300
Apr 30, 2018 – May 4, 2018$25.20$25.80$17.40$18.900
May 7, 2018 – May 11, 2018$19.20$19.50$14.43$15.930
May 14, 2018 – May 18, 2018$16.50$22.50$14.49$15.300
May 21, 2018 – May 25, 2018$14.70$19.80$12.30$15.060
May 28, 2018 – Jun 1, 2018$14.58$20.40$13.80$17.610
Jun 4, 2018 – Jun 8, 2018$17.61$23.10$16.50$19.740
Jun 11, 2018 – Jun 15, 2018$19.26$19.74$15.09$15.540
Jun 18, 2018 – Jun 22, 2018$15.33$20.25$15.33$17.640
Jun 25, 2018 – Jun 29, 2018$18.00$18.36$12.60$13.350
Jul 2, 2018 – Jul 6, 2018$13.20$13.83$11.97$12.420
Jul 9, 2018 – Jul 13, 2018$13.08$17.70$12.45$15.300
Jul 16, 2018 – Jul 20, 2018$16.05$16.05$9.99$12.000
Jul 23, 2018 – Jul 27, 2018$11.70$12.30$10.53$11.130
Jul 30, 2018 – Aug 3, 2018$11.10$11.85$7.50$10.050
Aug 6, 2018 – Aug 10, 2018$10.20$10.50$9.30$9.300
Aug 13, 2018 – Aug 17, 2018$9.90$12.30$9.09$9.900
Aug 20, 2018 – Aug 24, 2018$9.30$10.20$8.70$9.300
Aug 27, 2018 – Aug 31, 2018$9.75$11.40$8.10$9.600
Sep 3, 2018 – Sep 7, 2018$10.20$10.20$8.85$8.850
Sep 10, 2018 – Sep 14, 2018$9.30$9.30$4.80$5.450
Sep 17, 2018 – Sep 21, 2018$5.62$36.25$4.27$26.190
Sep 24, 2018 – Sep 28, 2018$17.02$17.76$4.07$4.400
Oct 1, 2018 – Oct 5, 2018$4.69$7.60$4.30$7.240
Oct 8, 2018 – Oct 12, 2018$5.00$5.24$4.05$4.160
Oct 15, 2018 – Oct 19, 2018$4.08$4.95$3.55$4.310
Oct 22, 2018 – Oct 26, 2018$4.28$4.49$3.80$4.080
Oct 29, 2018 – Nov 2, 2018$4.10$4.20$3.60$4.000
Nov 5, 2018 – Nov 9, 2018$3.98$4.23$3.63$3.710
Nov 12, 2018 – Nov 16, 2018$3.74$3.79$2.90$3.200
Nov 19, 2018 – Nov 23, 2018$3.17$3.77$2.85$3.210
Nov 26, 2018 – Nov 30, 2018$3.25$3.74$3.16$3.590
Dec 3, 2018 – Dec 7, 2018$3.67$3.79$3.12$3.190
Dec 10, 2018 – Dec 14, 2018$3.18$3.23$2.00$2.150
Dec 17, 2018 – Dec 21, 2018$2.15$2.57$1.70$1.860
Dec 24, 2018 – Dec 28, 2018$1.80$1.93$1.70$1.840
Dec 31, 2018 – Jan 4, 2019$1.89$2.73$1.85$2.620
Jan 7, 2019 – Jan 11, 2019$2.65$2.92$2.58$2.680
Jan 14, 2019 – Jan 18, 2019$2.65$3.40$2.51$2.910
Jan 21, 2019 – Jan 25, 2019$2.90$3.65$2.75$3.410
Jan 28, 2019 – Feb 1, 2019$3.40$3.40$2.85$3.330
Feb 4, 2019 – Feb 8, 2019$3.34$3.44$3.00$3.140
Feb 11, 2019 – Feb 15, 2019$3.09$3.10$2.85$2.990
Feb 18, 2019 – Feb 22, 2019$3.00$3.00$2.72$2.810
Feb 25, 2019 – Mar 1, 2019$2.87$2.89$2.64$2.710
Mar 4, 2019 – Mar 8, 2019$2.71$5.94$2.53$2.880
Mar 11, 2019 – Mar 15, 2019$2.85$3.15$2.66$2.700
Mar 18, 2019 – Mar 22, 2019$2.69$4.05$2.63$2.840
Mar 25, 2019 – Mar 29, 2019$2.89$3.07$2.77$2.900
Apr 1, 2019 – Apr 5, 2019$2.96$3.34$2.90$3.090
Apr 8, 2019 – Apr 12, 2019$3.14$3.53$3.03$3.180
Apr 15, 2019 – Apr 18, 2019$3.18$3.18$2.65$2.740
Apr 22, 2019 – Apr 26, 2019$2.75$2.84$2.62$2.810
Apr 29, 2019 – May 3, 2019$2.82$2.99$2.79$2.940
May 6, 2019 – May 10, 2019$2.85$3.08$2.70$2.770
May 13, 2019 – May 17, 2019$2.74$2.77$2.28$2.450
May 20, 2019 – May 24, 2019$2.41$2.58$2.36$2.510
May 27, 2019 – May 31, 2019$2.49$2.59$2.36$2.430
Jun 3, 2019 – Jun 7, 2019$2.41$2.56$2.24$2.360
Jun 10, 2019 – Jun 14, 2019$2.41$2.62$2.32$2.580
Jun 17, 2019 – Jun 21, 2019$2.58$2.60$2.23$2.300
Jun 24, 2019 – Jun 28, 2019$2.28$2.38$2.13$2.380
Jul 1, 2019 – Jul 5, 2019$2.36$2.49$2.33$2.420
Jul 8, 2019 – Jul 12, 2019$2.43$2.95$2.35$2.450
Jul 15, 2019 – Jul 19, 2019$2.48$2.54$2.31$2.350
Jul 22, 2019 – Jul 26, 2019$2.36$2.47$2.21$2.410
Jul 29, 2019 – Aug 2, 2019$2.39$2.46$2.24$2.290
Aug 5, 2019 – Aug 9, 2019$2.22$2.35$2.18$2.210
Aug 12, 2019 – Aug 16, 2019$2.22$2.28$1.97$2.030
Aug 19, 2019 – Aug 23, 2019$2.04$2.29$2.01$2.080
Aug 26, 2019 – Aug 30, 2019$2.13$2.15$1.94$2.110
Sep 2, 2019 – Sep 6, 2019$2.08$2.19$2.02$2.020
Sep 9, 2019 – Sep 13, 2019$2.05$2.29$2.05$2.250
Sep 16, 2019 – Sep 20, 2019$2.20$2.29$2.02$2.110
Sep 23, 2019 – Sep 27, 2019$2.08$2.11$1.92$1.950
Sep 30, 2019 – Oct 4, 2019$1.93$2.01$1.85$1.900
Oct 7, 2019 – Oct 11, 2019$1.91$1.98$1.87$1.960
Oct 14, 2019 – Oct 18, 2019$1.95$2.08$1.94$2.020
Oct 21, 2019 – Oct 25, 2019$2.02$2.04$1.95$1.980
Oct 28, 2019 – Nov 1, 2019$1.98$2.03$1.90$1.950
Nov 4, 2019 – Nov 8, 2019$1.94$1.96$1.82$1.840
Nov 11, 2019 – Nov 15, 2019$1.82$1.84$1.52$1.610
Nov 18, 2019 – Nov 22, 2019$1.65$1.68$1.51$1.620
Nov 25, 2019 – Nov 29, 2019$1.61$1.84$1.59$1.820
Dec 2, 2019 – Dec 6, 2019$1.90$2.24$1.83$1.880
Dec 9, 2019 – Dec 13, 2019$1.89$1.93$1.71$1.720
Dec 16, 2019 – Dec 20, 2019$1.73$1.83$1.71$1.760
Dec 23, 2019 – Dec 27, 2019$1.76$1.83$1.73$1.800
Dec 30, 2019 – Jan 3, 2020$1.82$1.95$1.77$1.920
Jan 6, 2020 – Jan 10, 2020$1.94$1.97$1.81$1.850
Jan 13, 2020 – Jan 17, 2020$1.78$1.87$1.71$1.840
Jan 20, 2020 – Jan 24, 2020$1.94$2.20$1.87$1.910
Jan 27, 2020 – Jan 31, 2020$1.90$1.93$1.69$1.720
Feb 3, 2020 – Feb 7, 2020$1.72$1.94$1.72$1.800
Feb 10, 2020 – Feb 14, 2020$1.83$1.83$1.67$1.740
Feb 17, 2020 – Feb 21, 2020$1.70$1.79$1.68$1.760
Feb 24, 2020 – Feb 28, 2020$1.80$4.45$1.60$3.700
Mar 2, 2020 – Mar 6, 2020$3.80$3.90$2.50$3.800
Mar 9, 2020 – Mar 13, 2020$3.99$3.99$2.50$2.890
Mar 16, 2020 – Mar 20, 2020$2.74$3.29$2.55$2.940
Mar 23, 2020 – Mar 27, 2020$3.04$3.73$2.68$2.850
Mar 30, 2020 – Apr 3, 2020$3.04$3.28$2.85$2.900
Apr 6, 2020 – Apr 9, 2020$2.94$3.54$2.86$3.170
Apr 13, 2020 – Apr 17, 2020$3.16$3.60$3.06$3.320
Apr 20, 2020 – Apr 24, 2020$3.30$3.35$3.03$3.160
Apr 27, 2020 – May 1, 2020$3.26$3.28$2.88$2.960
May 4, 2020 – May 8, 2020$3.00$3.21$2.91$3.110
May 11, 2020 – May 15, 2020$3.15$5.74$3.05$4.480
May 18, 2020 – May 22, 2020$4.59$7.00$4.36$6.950
May 25, 2020 – May 29, 2020$7.66$10.68$6.17$9.280
Jun 1, 2020 – Jun 5, 2020$9.38$9.53$7.06$7.560
Jun 8, 2020 – Jun 12, 2020$7.32$8.03$5.71$7.540
Jun 15, 2020 – Jun 19, 2020$7.35$8.18$6.88$7.400
Jun 22, 2020 – Jun 26, 2020$8.00$11.20$7.82$10.600
Jun 29, 2020 – Jul 2, 2020$12.00$12.74$8.60$10.420
Jul 6, 2020 – Jul 10, 2020$10.59$24.65$9.63$22.350
Jul 13, 2020 – Jul 17, 2020$27.48$33.30$22.80$28.660
Jul 20, 2020 – Jul 24, 2020$29.35$35.10$25.16$25.630
Jul 27, 2020 – Jul 31, 2020$25.58$28.33$20.76$26.580
Aug 3, 2020 – Aug 7, 2020$26.51$29.71$25.55$27.380
Aug 10, 2020 – Aug 14, 2020$27.33$27.79$20.21$24.660
Aug 17, 2020 – Aug 21, 2020$24.60$26.75$23.43$24.040
Aug 24, 2020 – Aug 28, 2020$23.12$23.80$17.26$17.620
Aug 31, 2020 – Sep 4, 2020$17.85$17.85$12.00$12.430
Sep 7, 2020 – Sep 11, 2020$12.43$13.65$11.75$12.090
Sep 14, 2020 – Sep 18, 2020$12.27$15.63$12.26$14.120
Sep 21, 2020 – Sep 25, 2020$13.90$14.52$11.70$12.920
Sep 28, 2020 – Oct 2, 2020$13.13$13.45$11.89$12.970
Oct 5, 2020 – Oct 9, 2020$13.01$14.46$12.21$12.370
Oct 12, 2020 – Oct 16, 2020$12.80$16.25$12.16$12.970
Oct 19, 2020 – Oct 23, 2020$13.00$13.01$10.91$12.000
Oct 26, 2020 – Oct 30, 2020$12.01$12.42$10.41$11.450
Nov 2, 2020 – Nov 6, 2020$11.37$12.75$11.05$12.450
Nov 9, 2020 – Nov 13, 2020$12.18$12.30$7.80$10.130
Nov 16, 2020 – Nov 20, 2020$9.37$9.86$9.03$9.320
Nov 23, 2020 – Nov 27, 2020$9.32$10.69$8.76$10.520
Nov 30, 2020 – Dec 4, 2020$10.70$15.37$10.57$12.330
Dec 7, 2020 – Dec 11, 2020$12.29$13.45$11.83$11.970
Dec 14, 2020 – Dec 18, 2020$12.41$14.57$11.90$12.470
Dec 21, 2020 – Dec 24, 2020$12.50$13.95$11.25$11.450
Dec 28, 2020 – Dec 31, 2020$12.06$12.27$10.46$11.280
Jan 4, 2021 – Jan 8, 2021$11.35$14.85$11.19$14.120
Jan 11, 2021 – Jan 15, 2021$13.66$14.40$12.71$12.930
Jan 18, 2021 – Jan 22, 2021$13.15$14.87$12.61$14.350
Jan 25, 2021 – Jan 29, 2021$14.84$18.79$13.38$14.280
Feb 1, 2021 – Feb 5, 2021$14.82$18.99$14.20$18.360
Feb 8, 2021 – Feb 12, 2021$18.92$22.88$18.80$22.220
Feb 15, 2021 – Feb 19, 2021$22.18$24.61$20.91$22.930
Feb 22, 2021 – Feb 26, 2021$22.57$22.66$15.50$15.940
Mar 1, 2021 – Mar 5, 2021$16.61$17.07$11.65$12.940
Mar 8, 2021 – Mar 12, 2021$13.06$18.21$12.66$16.760
Mar 15, 2021 – Mar 19, 2021$17.22$18.52$15.76$16.420
Mar 22, 2021 – Mar 26, 2021$16.52$16.86$12.84$13.850
Mar 29, 2021 – Apr 1, 2021$13.75$14.63$12.78$14.000
Apr 5, 2021 – Apr 9, 2021$14.35$14.49$12.86$12.900
Apr 12, 2021 – Apr 16, 2021$12.96$13.32$11.96$12.270
Apr 19, 2021 – Apr 23, 2021$12.10$13.12$11.35$12.440
Apr 26, 2021 – Apr 30, 2021$12.73$14.89$12.59$14.470
May 3, 2021 – May 7, 2021$14.68$14.95$12.24$13.270
May 10, 2021 – May 14, 2021$13.68$13.91$12.20$13.380
May 17, 2021 – May 21, 2021$13.16$14.78$13.06$14.010
May 24, 2021 – May 28, 2021$14.00$14.00$11.73$12.650
May 31, 2021 – Jun 4, 2021$12.70$13.25$12.28$12.950
Jun 7, 2021 – Jun 11, 2021$13.10$16.70$12.93$14.370
Jun 14, 2021 – Jun 18, 2021$14.46$19.46$13.99$15.980
Jun 21, 2021 – Jun 25, 2021$15.85$16.63$15.11$16.080
Jun 28, 2021 – Jul 2, 2021$16.13$17.26$8.99$9.340
Jul 5, 2021 – Jul 9, 2021$9.19$9.30$8.10$9.210
Jul 12, 2021 – Jul 16, 2021$9.18$9.31$8.25$8.790
Jul 19, 2021 – Jul 23, 2021$8.40$9.69$8.34$8.880
Jul 26, 2021 – Jul 30, 2021$8.87$9.53$8.60$9.070
Aug 2, 2021 – Aug 6, 2021$9.15$10.29$8.92$10.250
Aug 9, 2021 – Aug 13, 2021$10.33$12.30$9.95$12.020
Aug 16, 2021 – Aug 20, 2021$11.80$12.80$11.04$12.680
Aug 23, 2021 – Aug 27, 2021$12.73$14.90$12.55$14.690
Aug 30, 2021 – Sep 3, 2021$14.79$16.61$13.88$16.430
Sep 6, 2021 – Sep 10, 2021$16.38$17.18$15.91$16.810
Sep 13, 2021 – Sep 17, 2021$16.81$17.26$15.18$15.240
Sep 20, 2021 – Sep 24, 2021$14.94$15.58$14.31$14.970
Sep 27, 2021 – Oct 1, 2021$15.10$15.64$10.65$11.950
Oct 4, 2021 – Oct 8, 2021$11.60$12.54$10.93$12.170
Oct 11, 2021 – Oct 15, 2021$12.13$12.97$11.98$12.010
Oct 18, 2021 – Oct 22, 2021$12.00$12.63$11.13$11.520
Oct 25, 2021 – Oct 29, 2021$11.50$11.75$10.74$10.800
Nov 1, 2021 – Nov 5, 2021$10.85$11.33$10.53$10.840
Nov 8, 2021 – Nov 12, 2021$10.80$11.41$10.52$11.110
Nov 15, 2021 – Nov 19, 2021$11.09$11.26$10.45$10.550
Nov 22, 2021 – Nov 26, 2021$10.47$10.70$9.84$10.420
Nov 29, 2021 – Dec 3, 2021$10.69$10.75$9.29$9.480
Dec 6, 2021 – Dec 10, 2021$9.52$10.31$9.01$9.420
Dec 13, 2021 – Dec 17, 2021$9.42$9.84$8.40$9.360
Dec 20, 2021 – Dec 23, 2021$9.25$9.71$8.87$9.200
Dec 27, 2021 – Dec 31, 2021$9.14$9.36$8.52$9.160
Jan 3, 2022 – Jan 7, 2022$9.38$9.67$8.26$8.280
Jan 10, 2022 – Jan 14, 2022$8.22$8.28$7.35$7.840
Jan 17, 2022 – Jan 21, 2022$7.81$7.81$6.88$6.990
Jan 24, 2022 – Jan 28, 2022$6.78$7.76$6.35$7.200
Jan 31, 2022 – Feb 4, 2022$7.41$8.26$7.32$7.660
Feb 7, 2022 – Feb 11, 2022$7.64$8.52$7.62$7.680
Feb 14, 2022 – Feb 18, 2022$7.66$8.02$6.99$7.060
Feb 21, 2022 – Feb 25, 2022$6.99$7.74$6.62$7.610
Feb 28, 2022 – Mar 4, 2022$7.56$7.70$6.93$6.930
Mar 7, 2022 – Mar 11, 2022$6.99$7.65$6.89$6.960
Mar 14, 2022 – Mar 18, 2022$6.95$7.45$5.78$7.210
Mar 21, 2022 – Mar 25, 2022$7.18$7.24$6.34$6.390
Mar 28, 2022 – Apr 1, 2022$6.38$6.50$5.95$6.220
Apr 4, 2022 – Apr 8, 2022$6.25$6.44$5.62$5.680
Apr 11, 2022 – Apr 14, 2022$5.63$6.05$5.15$5.230
Apr 18, 2022 – Apr 22, 2022$5.21$5.33$4.43$4.540
Apr 25, 2022 – Apr 29, 2022$4.48$4.78$4.34$4.520
May 2, 2022 – May 6, 2022$4.49$4.90$4.21$4.330
May 9, 2022 – May 13, 2022$4.24$5.36$3.83$5.160
May 16, 2022 – May 20, 2022$5.11$5.35$4.57$5.020
May 23, 2022 – May 27, 2022$5.05$5.17$4.48$5.030
May 30, 2022 – Jun 3, 2022$5.04$5.64$4.90$5.440
Jun 6, 2022 – Jun 10, 2022$5.44$8.82$5.15$8.550
Jun 13, 2022 – Jun 17, 2022$8.06$9.49$7.20$9.020
Jun 20, 2022 – Jun 24, 2022$8.97$11.00$8.70$10.290
Jun 27, 2022 – Jul 1, 2022$10.18$12.03$9.74$11.260
Jul 4, 2022 – Jul 8, 2022$11.22$13.17$10.90$12.670
Jul 11, 2022 – Jul 15, 2022$12.50$12.50$10.90$11.330
Jul 18, 2022 – Jul 22, 2022$11.38$13.44$10.51$13.080
Jul 25, 2022 – Jul 29, 2022$13.15$13.23$11.67$12.010
Aug 1, 2022 – Aug 5, 2022$12.01$13.15$10.15$12.400
Aug 8, 2022 – Aug 12, 2022$12.60$18.55$12.18$17.360
Aug 15, 2022 – Aug 19, 2022$17.10$19.04$16.33$17.160
Aug 22, 2022 – Aug 26, 2022$16.75$19.62$16.70$18.450
Aug 29, 2022 – Sep 2, 2022$18.01$23.49$17.97$22.410
Sep 5, 2022 – Sep 9, 2022$22.05$22.32$18.62$19.980
Sep 12, 2022 – Sep 16, 2022$19.98$21.62$11.16$13.670
Sep 19, 2022 – Sep 23, 2022$13.67$13.67$11.70$12.370
Sep 26, 2022 – Sep 30, 2022$12.33$14.16$11.70$12.770
Oct 3, 2022 – Oct 7, 2022$12.77$13.18$10.46$10.460
Oct 10, 2022 – Oct 14, 2022$10.35$10.76$9.45$10.400
Oct 17, 2022 – Oct 21, 2022$10.73$11.02$9.79$10.730
Oct 24, 2022 – Oct 28, 2022$10.78$12.79$10.34$12.770
Oct 31, 2022 – Nov 4, 2022$12.58$13.29$11.51$11.840
Nov 7, 2022 – Nov 11, 2022$11.99$12.12$9.52$10.690
Nov 14, 2022 – Nov 18, 2022$10.65$11.13$8.61$8.840
Nov 21, 2022 – Nov 25, 2022$8.81$9.90$8.29$9.090
Nov 28, 2022 – Dec 2, 2022$9.10$11.33$8.95$11.280
Dec 5, 2022 – Dec 9, 2022$11.39$11.70$9.97$10.100
Dec 12, 2022 – Dec 16, 2022$10.23$11.55$10.09$11.480
Dec 19, 2022 – Dec 23, 2022$11.56$15.77$9.15$15.330
Dec 26, 2022 – Dec 30, 2022$15.28$16.72$14.19$16.450
Jan 2, 2023 – Jan 6, 2023$16.55$16.75$14.05$14.290
Jan 9, 2023 – Jan 13, 2023$14.42$17.17$13.89$16.290
Jan 16, 2023 – Jan 20, 2023$16.29$16.35$14.28$14.350
Jan 23, 2023 – Jan 27, 2023$14.65$15.06$13.10$13.230
Jan 30, 2023 – Feb 3, 2023$12.90$15.95$12.30$15.160
Feb 6, 2023 – Feb 10, 2023$15.10$15.94$13.32$13.430
Feb 13, 2023 – Feb 17, 2023$13.43$13.57$11.52$11.960
Feb 20, 2023 – Feb 24, 2023$11.76$12.05$11.28$11.980
Feb 27, 2023 – Mar 3, 2023$12.06$12.70$11.37$11.590
Mar 6, 2023 – Mar 10, 2023$11.46$11.79$10.16$10.370
Mar 13, 2023 – Mar 17, 2023$10.37$11.65$10.10$11.010
Mar 20, 2023 – Mar 24, 2023$11.08$11.10$4.14$4.320
Mar 27, 2023 – Mar 31, 2023$4.46$4.97$4.07$4.220
Apr 3, 2023 – Apr 6, 2023$4.19$4.48$3.82$4.010
Apr 10, 2023 – Apr 14, 2023$4.00$4.84$3.86$4.780
Apr 17, 2023 – Apr 21, 2023$4.91$6.08$4.87$5.790
Apr 24, 2023 – Apr 28, 2023$5.75$5.80$4.93$5.050
May 1, 2023 – May 5, 2023$5.10$5.27$4.66$4.940
May 8, 2023 – May 12, 2023$4.95$5.55$4.78$5.090
May 15, 2023 – May 19, 2023$5.15$5.33$4.29$4.490
May 22, 2023 – May 26, 2023$4.55$4.80$4.06$4.090
May 29, 2023 – Jun 2, 2023$4.15$4.27$3.97$4.260
Jun 5, 2023 – Jun 9, 2023$4.27$4.47$3.97$4.000
Jun 12, 2023 – Jun 16, 2023$4.04$4.19$3.89$4.000
Jun 19, 2023 – Jun 23, 2023$4.04$4.30$3.89$3.910
Jun 26, 2023 – Jun 30, 2023$3.92$3.92$3.32$3.530
Jul 3, 2023 – Jul 7, 2023$3.57$3.58$3.20$3.290
Jul 10, 2023 – Jul 14, 2023$3.31$3.49$3.27$3.280
Jul 17, 2023 – Jul 21, 2023$3.32$3.38$3.09$3.140
Jul 24, 2023 – Jul 28, 2023$3.18$3.28$2.95$3.250
Jul 31, 2023 – Aug 4, 2023$3.30$3.42$3.00$3.140
Aug 7, 2023 – Aug 11, 2023$3.16$3.36$2.89$3.010
Aug 14, 2023 – Aug 18, 2023$3.01$3.04$2.63$2.650
Aug 21, 2023 – Aug 25, 2023$2.67$2.67$2.39$2.400
Aug 28, 2023 – Sep 1, 2023$2.41$2.65$2.34$2.650
Sep 4, 2023 – Sep 8, 2023$2.65$2.65$2.40$2.450
Sep 11, 2023 – Sep 15, 2023$2.46$2.96$2.41$2.920
Sep 18, 2023 – Sep 22, 2023$2.92$2.93$2.51$2.610
Sep 25, 2023 – Sep 29, 2023$2.55$2.67$2.42$2.600
Oct 2, 2023 – Oct 6, 2023$2.64$2.65$2.39$2.520
Oct 9, 2023 – Oct 13, 2023$2.50$2.89$2.38$2.660
Oct 16, 2023 – Oct 20, 2023$2.68$2.86$2.15$2.170
Oct 23, 2023 – Oct 27, 2023$2.18$2.73$2.09$2.310
Oct 30, 2023 – Nov 3, 2023$2.33$2.76$2.33$2.740
Nov 6, 2023 – Nov 10, 2023$2.70$2.86$2.37$2.500
Nov 13, 2023 – Nov 17, 2023$2.50$2.61$2.32$2.440
Nov 20, 2023 – Nov 24, 2023$2.42$2.84$2.41$2.810
Nov 27, 2023 – Dec 1, 2023$2.83$5.87$2.76$3.570
Dec 4, 2023 – Dec 8, 2023$4.10$8.63$4.06$6.480
Dec 11, 2023 – Dec 15, 2023$6.72$7.87$4.71$7.670
Dec 18, 2023 – Dec 22, 2023$7.64$9.42$7.31$9.270
Dec 25, 2023 – Dec 29, 2023$9.54$12.51$9.51$11.250
Jan 1, 2024 – Jan 5, 2024$11.13$12.10$9.45$11.190
Jan 8, 2024 – Jan 12, 2024$11.05$13.00$10.66$12.000
Jan 15, 2024 – Jan 19, 2024$12.00$12.07$8.66$9.250
Jan 22, 2024 – Jan 26, 2024$9.18$10.56$8.95$9.330
Jan 29, 2024 – Feb 2, 2024$9.21$10.15$8.81$9.320
Feb 5, 2024 – Feb 9, 2024$9.20$10.91$8.98$10.440
Feb 12, 2024 – Feb 16, 2024$10.44$10.60$8.02$8.760
Feb 19, 2024 – Feb 23, 2024$8.53$9.42$8.03$9.200
Feb 26, 2024 – Mar 1, 2024$10.45$14.84$10.09$12.090
Mar 4, 2024 – Mar 8, 2024$12.34$12.35$9.63$10.390
Mar 11, 2024 – Mar 15, 2024$10.30$11.50$9.75$9.860
Mar 18, 2024 – Mar 22, 2024$9.73$9.77$8.49$9.080
Mar 25, 2024 – Mar 28, 2024$9.12$10.50$7.92$10.180
Apr 1, 2024 – Apr 5, 2024$10.25$11.01$8.63$9.090
Apr 8, 2024 – Apr 12, 2024$9.09$9.15$7.75$7.990
Apr 15, 2024 – Apr 19, 2024$7.95$7.98$6.64$6.910
Apr 22, 2024 – Apr 26, 2024$7.03$8.23$6.78$7.260
Apr 29, 2024 – May 3, 2024$6.86$7.63$6.28$7.300
May 6, 2024 – May 10, 2024$7.38$8.08$6.81$7.220
May 13, 2024 – May 17, 2024$7.32$9.50$7.12$8.010
May 20, 2024 – May 24, 2024$8.01$8.27$7.20$7.330
May 27, 2024 – May 31, 2024$7.47$7.53$6.77$7.510
Jun 3, 2024 – Jun 7, 2024$7.64$7.94$6.05$6.460
Jun 10, 2024 – Jun 14, 2024$6.48$6.73$6.03$6.110
Jun 17, 2024 – Jun 21, 2024$6.11$6.76$5.64$6.410
Jun 24, 2024 – Jun 28, 2024$7.47$8.49$6.06$6.650
Jul 1, 2024 – Jul 5, 2024$6.67$7.47$6.33$6.620
Jul 8, 2024 – Jul 12, 2024$6.74$8.03$6.56$7.900
Jul 15, 2024 – Jul 19, 2024$8.01$8.26$6.26$6.280
Jul 22, 2024 – Jul 26, 2024$6.43$7.14$6.09$6.750
Jul 29, 2024 – Aug 2, 2024$6.73$6.90$5.77$6.000
Aug 5, 2024 – Aug 9, 2024$5.40$6.67$5.28$6.170
Aug 12, 2024 – Aug 16, 2024$6.17$6.59$6.05$6.490
Aug 19, 2024 – Aug 23, 2024$6.53$7.66$6.50$6.940
Aug 26, 2024 – Aug 30, 2024$6.96$7.17$6.34$6.700
Sep 2, 2024 – Sep 6, 2024$6.67$6.76$5.99$6.200
Sep 9, 2024 – Sep 13, 2024$6.22$8.25$6.20$7.880
Sep 16, 2024 – Sep 20, 2024$7.92$7.94$7.20$7.790
Sep 23, 2024 – Sep 27, 2024$7.80$7.80$6.40$6.470
Sep 30, 2024 – Oct 4, 2024$6.33$6.54$5.86$6.230
Oct 7, 2024 – Oct 11, 2024$6.27$6.50$5.92$6.300
Oct 14, 2024 – Oct 18, 2024$6.29$7.24$6.23$6.880
Oct 21, 2024 – Oct 25, 2024$6.90$7.05$6.52$6.690
Oct 28, 2024 – Nov 1, 2024$6.82$7.58$6.58$6.740
Nov 4, 2024 – Nov 8, 2024$6.69$8.05$6.45$7.680
Nov 11, 2024 – Nov 15, 2024$7.89$11.16$6.92$7.610
Nov 18, 2024 – Nov 22, 2024$7.55$9.06$6.95$8.680
Nov 25, 2024 – Nov 29, 2024$8.93$9.23$8.23$8.570
Dec 2, 2024 – Dec 6, 2024$8.59$10.88$8.57$9.110
Dec 9, 2024 – Dec 13, 2024$9.14$9.95$8.46$9.030
Dec 16, 2024 – Dec 20, 2024$9.06$9.59$7.70$8.250
Dec 23, 2024 – Dec 27, 2024$8.22$8.25$7.37$7.670
Dec 30, 2024 – Jan 3, 2025$7.46$7.61$6.95$7.260
Jan 6, 2025 – Jan 10, 2025$7.36$7.83$6.70$6.870
Jan 13, 2025 – Jan 17, 2025$6.67$6.99$6.19$6.860
Jan 20, 2025 – Jan 24, 2025$6.96$7.42$6.72$6.980
Jan 27, 2025 – Jan 31, 2025$6.85$7.18$6.62$6.640
Feb 3, 2025 – Feb 7, 2025$6.36$7.17$6.15$6.660
Feb 10, 2025 – Feb 14, 2025$6.70$6.76$6.06$6.370
Feb 17, 2025 – Feb 21, 2025$6.45$7.10$6.33$6.430
Feb 24, 2025 – Feb 28, 2025$6.40$6.78$5.80$6.650
Mar 3, 2025 – Mar 7, 2025$6.71$6.71$5.41$5.570
Mar 10, 2025 – Mar 14, 2025$5.49$6.05$5.14$5.920
Mar 17, 2025 – Mar 21, 2025$5.92$6.01$5.45$5.810
Mar 24, 2025 – Mar 28, 2025$5.84$6.16$5.30$5.320
Mar 31, 2025 – Apr 4, 2025$5.07$5.13$4.13$4.240
Apr 7, 2025 – Apr 11, 2025$4.00$4.47$3.55$4.410
Apr 14, 2025 – Apr 17, 2025$4.70$4.75$4.32$4.550
Apr 21, 2025 – Apr 25, 2025$4.43$5.23$4.37$5.070
Apr 28, 2025 – May 2, 2025$5.08$6.05$4.93$5.770
May 5, 2025 – May 9, 2025$5.68$6.05$4.95$5.590
May 12, 2025 – May 16, 2025$5.80$6.13$5.49$5.580
May 19, 2025 – May 23, 2025$5.46$5.99$5.34$5.710
May 26, 2025 – May 30, 2025$5.77$5.81$5.35$5.430
Jun 2, 2025 – Jun 6, 2025$5.46$5.81$5.15$5.620
Jun 9, 2025 – Jun 13, 2025$5.75$7.48$5.57$6.920
Jun 16, 2025 – Jun 20, 2025$7.09$7.52$6.61$7.030
Jun 23, 2025 – Jun 27, 2025$6.88$7.73$2.90$3.500
Jun 30, 2025 – Jul 3, 2025$3.42$5.03$3.30$4.760
Jul 7, 2025 – Jul 11, 2025$4.68$4.79$3.92$4.140
Jul 14, 2025 – Jul 18, 2025$4.10$4.29$3.93$4.080
Jul 21, 2025 – Jul 25, 2025$4.13$4.39$4.01$4.080
Jul 28, 2025 – Aug 1, 2025$4.10$4.14$3.58$3.610
Aug 4, 2025 – Aug 8, 2025$3.66$3.74$3.43$3.450
Aug 11, 2025 – Aug 15, 2025$3.44$3.91$3.34$3.630
Aug 18, 2025 – Aug 22, 2025$3.59$3.78$3.51$3.540
Aug 25, 2025 – Aug 29, 2025$3.53$3.86$3.35$3.830
Sep 1, 2025 – Sep 5, 2025$3.81$3.84$3.54$3.780
Sep 8, 2025 – Sep 12, 2025$3.78$3.82$3.60$3.640
Sep 15, 2025 – Sep 19, 2025$3.63$4.19$3.54$3.780
Sep 22, 2025 – Sep 26, 2025$3.78$4.14$3.69$4.000
Sep 29, 2025 – Oct 3, 2025$4.01$4.06$3.68$3.910
Oct 6, 2025 – Oct 10, 2025$3.93$4.18$3.85$3.920
Oct 13, 2025 – Oct 17, 2025$3.92$4.15$3.79$3.830
Oct 20, 2025 – Oct 24, 2025$3.87$4.10$3.83$3.950
Oct 27, 2025 – Oct 31, 2025$3.99$4.25$3.93$4.050
Nov 3, 2025 – Nov 7, 2025$4.03$4.16$3.73$4.110
Nov 10, 2025 – Nov 14, 2025$4.20$4.36$3.95$4.170
Nov 17, 2025 – Nov 21, 2025$4.14$4.88$4.07$4.810
Nov 24, 2025 – Nov 28, 2025$4.83$5.33$4.80$5.260
Dec 1, 2025 – Dec 5, 2025$5.08$5.46$4.70$5.240
Dec 8, 2025 – Dec 12, 2025$5.35$6.03$5.03$5.270
Dec 15, 2025 – Dec 19, 2025$5.29$5.50$3.83$3.900
Dec 22, 2025 – Dec 26, 2025$3.96$4.45$3.84$3.860
Dec 29, 2025 – Jan 2, 2026$3.84$3.84$3.48$3.510
Jan 5, 2026 – Jan 9, 2026$4.10$4.53$3.86$4.020
Jan 12, 2026 – Jan 16, 2026$4.08$4.40$3.96$4.240
Jan 19, 2026 – Jan 23, 2026$4.10$6.44$4.03$5.500
Jan 26, 2026 – Jan 30, 2026$5.50$6.36$5.03$5.600
Feb 2, 2026 – Feb 6, 2026$5.56$5.75$4.84$4.870
Feb 9, 2026 – Feb 13, 2026$4.85$4.96$4.47$4.530
Feb 16, 2026 – Feb 20, 2026$4.54$4.64$4.27$4.380
Feb 23, 2026 – Feb 27, 2026$4.34$4.83$4.29$4.310
Mar 2, 2026 – Mar 6, 2026$4.24$4.35$3.42$3.540
Mar 9, 2026 – Mar 13, 2026$3.64$4.04$3.47$3.500
Mar 16, 2026 – Mar 20, 2026$3.60$3.71$3.31$3.340
Mar 23, 2026 – Mar 27, 2026$3.40$3.53$3.02$3.020
Mar 30, 2026 – Apr 2, 2026$3.03$3.35$2.87$3.340
Apr 6, 2026 – Apr 10, 2026$3.34$3.54$3.22$3.240
Apr 13, 2026 – Apr 17, 2026$3.23$3.60$3.18$3.500
Apr 20, 2026 – Apr 24, 2026$3.45$3.64$2.80$2.850
Apr 27, 2026 – May 1, 2026$2.86$2.91$2.56$2.820
May 4, 2026 – May 8, 2026$2.84$3.26$2.84$3.090
May 11, 2026 – May 15, 2026$3.09$3.22$2.81$2.850
May 18, 2026 – May 22, 2026$2.85$3.00$2.72$2.900
May 25, 2026 – May 29, 2026$2.90$3.13$2.89$3.050
Jun 1, 2026 – Jun 5, 2026$3.02$3.05$2.69$2.710
Jun 8, 2026 – Jun 12, 2026$2.75$2.80$2.57$2.610
Jun 15, 2026 – Jun 18, 2026$2.62$2.77$2.58$2.700
Jun 22, 2026 – Jun 26, 2026$2.84$3.05$2.74$2.820
Jun 29, 2026 – Jul 2, 2026$2.85$3.40$2.79$3.160
Jul 6, 2026 – Jul 10, 2026$3.25$3.30$2.93$3.050
Jul 13, 2026 – Jul 17, 2026$3.01$3.02$2.77$2.870
Jul 20, 2026 – Jul 24, 2026$2.89$2.91$2.75$2.770
Jul 27, 2026 – Jul 31, 2026$2.80$3.31$2.78$2.840
Aug 3, 2026 – Aug 7, 2026$2.88$3.12$2.86$3.080
Aug 10, 2026 – Aug 14, 2026$3.09$3.20$2.84$2.940
Aug 17, 2026 – Aug 21, 2026$2.94$3.24$2.90$3.110
Aug 24, 2026 – Aug 28, 2026$3.13$3.25$3.03$3.110
Aug 31, 2026 – Sep 4, 2026$3.08$3.43$3.02$3.420

Valuation

MetricValueUpside
IC Value$2.19-36%
P/E-3.50
P/B1.37
P/S7521.08
EV/EBITDA-0.81
PEG
P/TBV1.37

Valuation history

Annual price overlaid with each model's fair value. Y-axis is log scale.

Annual price and model valuations for ALT, USD per share
YearPriceAIICGraham-DoddGraham Formula
2011
2012
2013
2014
2015
2016
2017$52.50$1,418.29
2018$2.88$1,918.37
2019$3.80$13.51
2020$16.76$20.11
2021$6.96$10.67
2022$10.37$17.09
2023$10.39$63.80
2024$5.57$15.77
2025$3.50$18.06

Historic valuation ratios

Pick a category, then toggle metrics to compare.

USD millions

Line items

    USD millions

    Line items

      USD millions

      Line items

        About Altimmune, Inc.

        Altimmune, Inc. is a clinical-stage biopharmaceutical company focused on pioneering treatments for obesity and various liver diseases. Its primary investigational drug, pemvidutide (proposed INN, previously known as ALT-801), operates as a GLP-1/glucagon dual receptor agonist. This compound is currently undergoing Phase 1b clinical trials, exploring its efficacy in treating both obesity and non-alcoholic steatohepatitis (NASH). Additionally, Altimmune is advancing HepTcell, an immunotherapeutic candidate, through Phase 2 clinical trials. This therapy is designed for individuals suffering from chronic hepatitis B virus infection. The enterprise, initially named Vaxin Inc., officially adopted the Altimmune, Inc. moniker in September 2015. Established in 1997, the company maintains its corporate headquarters in Gaithersburg, Maryland.

        CEO
        Jerome Benedict Durso
        Employees
        57
        Beta
        0.17

        Peer comparison

        Same-industry comparables, ranked by market cap.

        Scroll horizontally for additional metrics. Ticker column stays fixed.

        Peer comparison for ALT: basic info, valuation models, ratios, profitability, leverage, growth, cash flow, dividends, enterprise value, and Altman Z-score.
        Basic InfoIC ValuationCore ValuationProfitabilityLeverage & LiquidityGrowthCash FlowDividendsEnterprise ValueRisk
        TickerCompany NamePriceMarket CapValueUpsideP/EP/BP/SEV/EBITDAPEGP/TBVGross MarginOperating MarginNet MarginROEROICROADebt/EquityInterest CoverageCurrent RatioQuick RatioNet Debt/EBITDAEPS GrowthSales GrowthFCF GrowthFCF YieldOp Cash Flow RatioCash ROICDividend YieldDividend PayoutShareholder YieldEV/EBITEV/FCFEV/SalesAltman Z-Score
        ALTAltimmune, Inc.$3.08267.42M$18.06+486%-3.501.377521.08-0.811.37100.00%-230460.98%-214860.98%-50.57%957.85%-42.03%0.16-57.7618.5518.350.09-25.37%105.00%-15.41%-21.90%-4.50690.02%0.00%0.00%0.00%-0.75-1.051721.860.13
        ACIUAC Immune S.A.$2.36240.19M$25.96+1,000%-3.655.4668.65-2.34-9.79-44.29100.00%-1927.32%-1971.65%-85.60%153.32%-34.92%0.10-360.541.020.970.3337.25%-86.92%-202.67%-27.32%-0.70149.19%0.00%0.00%0.00%-2.30-2.3644.31-4.07
        AMRNAmarin Corporation plc$14.36297M$44.51+210%-8.200.691.49-0.840.7156.57%-6.53%-18.16%-8.21%-7.57%-5.72%0.03-1991.573.342.213.72-55.00%-6.55%-121.73%2.12%0.033.66%0.00%0.00%2.95%-1.984.100.13-1.60
        ANNXAnnexon, Inc.$5.41886.39M-4.254.15-3.26-13.004.150.00%0.00%0.00%-81.90%-4525.45%-65.86%0.125.685.590.6732.67%58.02%-21.24%-4.37-3899.90%0.21%-0.90%13.35%-3.08-3.571.65
        ANROAlto Neuroscience, Inc.$28.671.01B-10.164.25-7.824.250.00%0.00%0.00%-41.80%639.38%-34.92%0.03-26.8815.6915.582.86-12.40%4.63%-8.06%-4.57498.99%0.00%0.00%3.26%-7.08-9.089.85
        AURAAura Biosciences, Inc.$7.99826.46M-3.382.62-2.21-590.642.620.00%0.00%0.00%-73.52%-759.69%-60.35%0.138.157.850.400.57%5.10%-23.77%-4.61-573.78%0.00%0.00%8.15%-2.05-2.721.38
        DBVTDBV Technologies S.A.$13.48322.47M-12.0710.51-11.49-28.9710.510.00%0.00%0.00%-149.83%29889.40%-98.17%0.133.673.621.2441.67%13.95%-6.86%-2.0924738.72%0.00%0.00%8.33%-10.89-13.1612.75
        ENGNenGene Holdings Inc.$1.8092.15M-3.842.69-2.53-6.752.690.00%0.00%0.00%-53.28%-379.44%-44.05%0.19-41.146.306.130.1656.85%104.70%-22.37%-3.10-310.30%0.00%0.00%0.00%-2.34-2.861.76
        KRROKorro Bio, Inc.$13.25131.88M$8.03-39%-1.032.3418.81-1.07-3.092.3433.04%-1366.43%-1834.48%-110.70%-176.71%-69.03%0.856.906.38-0.2633.19%181.46%1.41%-65.76%-6.58-159.99%0.00%0.00%0.00%-1.01-1.1213.86-5.31
        LBRXLB Pharmaceuticals Inc Co…$48.001.38B-25.772.16-14.382.160.00%0.00%0.00%-24.38%55.69%-14.55%0.0141.4439.679.91-94.39%-34.49%-5.43%-4.7364.59%0.00%0.00%35.00%-11.77-10.1533.78
        LRMRLarimar Therapeutics, Inc…$4.16432.15M-2.024.29-1.22-2.814.290.00%0.00%0.00%-132.59%563.49%-95.75%0.052.192.120.4971.97%58.95%-33.80%-1.75370.08%0.00%0.00%15.88%-1.17-1.79-4.47

        Disclaimer: Information on this page is provided for educational purposes only and does not constitute investment advice. Upside computed as ($2.19 ÷ $3.42) − 1 = -35.96% (IC, example).