OTC:PRPH | Historical Stock Price | ProPhase Labs, 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
1994-04-04 to 2026-08-27
Data captured

Stock Price Chart

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

$0.02$0.13$0.85$5.70$38.15$255.351994-04-042026-08-27

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

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Historical Stock Price — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
1999-12-31$15.94$15.949,380
1999-12-30$15.94$15.9419,070
1999-12-29$16.56$16.5619,190
1999-12-28$16.88$16.879,990
1999-12-27$16.56$16.5612,920
1999-12-23$17.50$17.5015,110
1999-12-22$15.63$15.6214,260
1999-12-21$17.50$17.508,080
1999-12-20$19.38$19.379,210
1999-12-17$20.31$20.313,710
1999-12-16$20.31$20.314,380
1999-12-15$20.94$20.945,050
1999-12-14$21.25$21.253,860
1999-12-13$23.44$23.4410,200
1999-12-10$21.25$21.255,860
1999-12-09$21.25$21.256,540
1999-12-08$21.88$21.8724,380
1999-12-07$22.50$22.5015,070
1999-12-06$19.69$19.6910,800
1999-12-03$19.06$19.067,520
1999-12-02$20.00$20.006,680
1999-12-01$20.31$20.312,910
1999-11-30$20.94$20.944,770
1999-11-29$22.50$22.505,010
1999-11-26$22.50$22.504,690
1999-11-24$21.88$21.8712,780
1999-11-23$25.00$25.003,630
1999-11-22$25.31$25.313,700
1999-11-19$28.13$28.136,820
1999-11-18$28.13$28.132,000
1999-11-17$28.44$28.443,700
1999-11-16$28.13$28.134,580
1999-11-15$28.13$28.132,630
1999-11-12$29.06$29.06930
1999-11-11$28.75$28.751,890
1999-11-10$28.44$28.442,370
1999-11-09$27.50$27.501,650
1999-11-08$26.88$26.872,760
1999-11-05$30.00$30.007,590
1999-11-04$25.63$25.626,580
1999-11-03$23.75$23.7513,870
1999-11-02$26.25$26.258,770
1999-11-01$27.50$27.508,150
1999-10-29$29.69$29.695,660
1999-10-28$29.69$29.692,950
1999-10-27$30.00$30.002,650
1999-10-26$31.56$31.564,640
1999-10-25$30.63$30.629,490
1999-10-22$32.50$32.50200
1999-10-21$32.50$32.507,310
1999-10-20$33.44$33.446,680
1999-10-19$34.69$34.698,970
1999-10-18$35.94$35.949,960
1999-10-15$34.06$34.069,690
1999-10-14$27.81$27.81900
1999-10-13$29.38$29.372,860
1999-10-12$30.00$30.006,760
1999-10-11$27.50$27.502,060
1999-10-08$27.50$27.503,610
1999-10-07$28.13$28.1320,800
1999-10-06$28.75$28.752,520
1999-10-05$28.13$28.133,230
1999-10-04$30.00$30.001,780
1999-10-01$30.94$30.945,110
1999-09-30$31.25$31.253,270
1999-09-29$30.63$30.623,790
1999-09-28$29.69$29.696,350
1999-09-27$30.94$30.944,990
1999-09-24$30.94$30.942,250
1999-09-23$32.50$32.503,870
1999-09-22$35.00$35.0010,780
1999-09-21$31.88$31.8740,880
1999-09-20$41.56$41.561,340
1999-09-17$43.13$43.12740
1999-09-16$43.75$43.75150
1999-09-15$43.75$43.751,730
1999-09-14$43.75$43.751,570
1999-09-13$43.13$43.123,130
1999-09-10$42.50$42.50780
1999-09-09$42.50$42.502,300
1999-09-08$43.13$43.124,390
1999-09-07$46.88$46.874,890
1999-09-03$49.69$49.692,460
1999-09-02$49.06$49.062,820
1999-09-01$49.06$49.062,660
1999-08-31$49.38$49.372,820
1999-08-30$47.50$47.504,480
1999-08-27$48.13$48.122,780
1999-08-26$45.00$45.008,270
1999-08-25$45.63$45.621,310
1999-08-24$47.50$47.505,760
1999-08-23$50.00$50.002,480
1999-08-20$49.69$49.695,220
1999-08-19$45.31$45.315,610
1999-08-18$49.06$49.064,620
1999-08-17$46.88$46.873,310
1999-08-16$47.50$47.503,280
1999-08-13$48.13$48.122,050
1999-08-12$50.00$50.006,200
1999-08-11$48.75$48.752,950
1999-08-10$47.19$47.195,930
1999-08-09$48.75$48.754,470
1999-08-06$48.75$48.753,390
1999-08-05$50.00$50.007,420
1999-08-04$50.00$50.001,700
1999-08-03$48.75$48.755,380
1999-08-02$48.13$48.121,300
1999-07-30$52.50$52.5013,490
1999-07-29$49.38$49.373,510
1999-07-28$52.50$52.5016,980
1999-07-27$47.50$47.504,940
1999-07-26$51.25$51.251,070
1999-07-23$52.19$52.191,910
1999-07-22$56.56$56.561,640
1999-07-21$58.13$58.134,180
1999-07-20$56.25$56.258,350
1999-07-19$59.06$59.0612,480
1999-07-16$51.25$51.259,750
1999-07-15$49.69$49.691,930
1999-07-14$49.38$49.372,900
1999-07-13$48.75$48.751,620
1999-07-12$48.75$48.75490
1999-07-09$50.00$50.007,880
1999-07-08$48.13$48.123,210
1999-07-07$49.38$49.372,470
1999-07-06$49.06$49.061,610
1999-07-02$50.00$50.002,860
1999-07-01$48.75$48.751,540
1999-06-30$49.06$49.062,090
1999-06-29$49.06$49.061,420
1999-06-28$49.38$49.371,980
1999-06-25$50.00$50.002,890
1999-06-24$49.38$49.371,310
1999-06-23$49.38$49.376,880
1999-06-22$49.38$49.375,740
1999-06-21$49.69$49.692,240
1999-06-18$50.00$50.003,060
1999-06-17$49.06$49.065,850
1999-06-16$50.00$50.005,300
1999-06-15$49.06$49.064,200
1999-06-14$50.00$50.005,990
1999-06-11$49.69$49.697,220
1999-06-10$48.75$48.754,580
1999-06-09$50.00$50.004,120
1999-06-08$49.06$49.061,300
1999-06-07$48.75$48.751,920
1999-06-04$49.69$49.693,400
1999-06-03$49.06$49.0616,710
1999-06-02$49.38$49.372,120
1999-06-01$48.75$48.752,530
1999-05-28$49.06$49.069,130
1999-05-27$48.13$48.123,780
1999-05-26$49.69$49.6911,180
1999-05-25$49.06$49.068,660
1999-05-24$49.69$49.697,000
1999-05-21$49.06$49.061,470
1999-05-20$50.00$50.006,510
1999-05-19$48.75$48.754,240
1999-05-18$49.69$49.692,820
1999-05-17$50.00$50.007,110
1999-05-14$49.38$49.3715,290
1999-05-13$49.06$49.0615,430
1999-05-12$49.38$49.379,680
1999-05-11$49.69$49.699,800
1999-05-10$49.69$49.699,120
1999-05-07$50.31$50.316,890
1999-05-06$50.31$50.312,240
1999-05-05$50.31$50.3114,240
1999-05-04$50.94$50.9412,950
1999-05-03$51.25$51.2513,080
1999-04-30$51.25$51.2540,540
1999-04-29$50.63$50.6217,780
1999-04-28$50.63$50.629,210
1999-04-27$50.94$50.9413,870
1999-04-26$50.94$50.947,150
1999-04-23$50.63$50.623,500
1999-04-22$50.63$50.627,160
1999-04-21$50.63$50.626,400
1999-04-20$51.88$51.8719,750
1999-04-19$48.75$48.7512,330
1999-04-16$50.31$50.318,470
1999-04-15$50.63$50.625,780
1999-04-14$51.88$51.8734,600
1999-04-13$50.63$50.6220,520
1999-04-12$51.25$51.259,660
1999-04-09$50.63$50.6210,230
1999-04-08$51.25$51.255,050
1999-04-07$51.25$51.256,910
1999-04-06$51.56$51.562,850
1999-04-05$51.88$51.8720,720
1999-04-01$51.25$51.253,290
1999-03-31$51.25$51.257,570
1999-03-30$51.25$51.257,240
1999-03-29$51.25$51.254,740
1999-03-26$50.94$50.9410,480
1999-03-25$50.63$50.624,120
1999-03-24$51.25$51.251,640
1999-03-23$50.94$50.944,930
1999-03-22$51.25$51.256,600
1999-03-19$54.38$54.3722,700
1999-03-18$51.25$51.2514,010
1999-03-17$51.25$51.255,600
1999-03-16$51.25$51.2510,760
1999-03-15$51.25$51.256,350
1999-03-12$51.88$51.874,720
1999-03-11$51.25$51.255,460
1999-03-10$51.25$51.251,770
1999-03-09$51.25$51.255,230
1999-03-08$51.88$51.8711,090
1999-03-05$50.63$50.623,770
1999-03-04$52.19$52.195,380
1999-03-03$51.56$51.5610,870
1999-03-02$51.56$51.568,950
1999-03-01$51.88$51.873,450
1999-02-26$51.25$51.2510,260
1999-02-25$51.25$51.252,370
1999-02-24$51.88$51.878,120
1999-02-23$52.50$52.5040,520
1999-02-22$51.88$51.8717,860
1999-02-19$55.31$55.3123,030
1999-02-18$56.25$56.2517,930
1999-02-17$50.94$50.9412,580
1999-02-16$51.56$51.565,890
1999-02-12$54.06$54.064,110
1999-02-11$54.38$54.379,410
1999-02-10$50.94$50.947,410
1999-02-09$53.13$53.123,790
1999-02-08$54.06$54.063,560
1999-02-05$52.50$52.506,280
1999-02-04$51.25$51.257,850
1999-02-03$51.88$51.876,950
1999-02-02$50.63$50.6224,510
1999-02-01$50.31$50.316,820
1999-01-29$52.19$52.1910,570
1999-01-28$52.81$52.8110,440
1999-01-27$54.06$54.069,520
1999-01-26$56.25$56.253,210
1999-01-25$56.56$56.563,310
1999-01-22$58.13$58.134,360
1999-01-21$58.13$58.131,770
1999-01-20$57.50$57.502,990
1999-01-19$60.00$60.009,140
1999-01-15$60.00$60.008,090
1999-01-14$57.81$57.8117,090
1999-01-13$56.56$56.564,220
1999-01-12$57.50$57.509,270
1999-01-11$58.75$58.7519,820
1999-01-08$59.38$59.3713,580
1999-01-07$58.75$58.7520,060
1999-01-06$58.13$58.137,360
1999-01-05$60.00$60.0010,960
1999-01-04$57.50$57.505,030