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.

View year

Historical Stock Price — 1997

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
1997-12-31$144.38$144.3716,330
1997-12-30$146.88$146.8712,820
1997-12-29$146.25$146.255,730
1997-12-26$145.63$145.622,120
1997-12-24$146.88$146.873,770
1997-12-23$147.50$147.505,940
1997-12-22$148.13$148.128,490
1997-12-19$148.13$148.1210,640
1997-12-18$147.50$147.505,930
1997-12-17$148.75$148.7515,450
1997-12-16$148.13$148.1212,110
1997-12-15$150.00$150.008,590
1997-12-12$150.63$150.6220,990
1997-12-11$160.00$160.0021,150
1997-12-10$163.75$163.7547,200
1997-12-09$143.13$143.1237,280
1997-12-08$149.38$149.3736,840
1997-12-05$163.75$163.7514,270
1997-12-04$167.50$167.5023,510
1997-12-03$171.88$171.8710,110
1997-12-02$175.00$175.0013,060
1997-12-01$175.63$175.6210,900
1997-11-28$181.25$181.2510,090
1997-11-26$179.38$179.3813,090
1997-11-25$177.50$177.5017,920
1997-11-24$171.25$171.2516,700
1997-11-21$180.00$180.0010,740
1997-11-20$176.25$176.2516,940
1997-11-19$168.13$168.1236,390
1997-11-18$179.38$179.3813,690
1997-11-17$190.00$190.0023,790
1997-11-14$186.25$186.2514,790
1997-11-13$185.00$185.0024,690
1997-11-12$180.63$180.6252,980
1997-11-11$203.75$203.759,080
1997-11-10$205.63$205.6214,170
1997-11-07$206.25$206.2534,860
1997-11-06$221.25$221.2547,060
1997-11-05$200.47$200.4728,390
1997-11-04$184.22$184.229,860
1997-11-03$188.75$188.759,980
1997-10-31$181.25$181.258,920
1997-10-30$177.50$177.508,030
1997-10-29$181.88$181.8715,840
1997-10-28$186.88$186.8743,990
1997-10-27$175.63$175.6224,490
1997-10-24$190.00$190.0013,050
1997-10-23$195.00$195.0032,300
1997-10-22$195.00$195.0021,730
1997-10-21$205.63$205.625,270
1997-10-20$210.00$210.005,650
1997-10-17$211.88$211.8716,120
1997-10-16$213.13$213.129,100
1997-10-15$218.75$218.7511,690
1997-10-14$221.25$221.2519,810
1997-10-13$220.00$220.0010,660
1997-10-10$220.63$220.6225,410
1997-10-09$215.63$215.6213,960
1997-10-08$210.63$210.6229,260
1997-10-07$221.88$221.8736,530
1997-10-06$218.13$218.1250,510
1997-10-03$197.50$197.5039,380
1997-10-02$191.88$191.879,160
1997-10-01$186.88$186.8725,630
1997-09-30$190.00$190.0026,540
1997-09-29$191.25$191.2533,330
1997-09-26$173.75$173.759,720
1997-09-25$168.13$168.126,890
1997-09-24$167.50$167.506,790
1997-09-23$167.50$167.506,230
1997-09-22$165.63$165.624,310
1997-09-19$165.00$165.006,400
1997-09-18$164.38$164.377,590
1997-09-17$164.38$164.378,640
1997-09-16$165.00$165.009,340
1997-09-15$168.13$168.1211,640
1997-09-12$168.75$168.7531,090
1997-09-11$159.38$159.378,140
1997-09-10$160.00$160.008,590
1997-09-09$162.50$162.509,320
1997-09-08$163.75$163.757,710
1997-09-05$166.25$166.2511,470
1997-09-04$166.25$166.255,110
1997-09-03$161.88$161.8710,120
1997-09-02$168.75$168.758,510
1997-08-29$165.63$165.628,930
1997-08-28$164.38$164.3710,700
1997-08-27$168.75$168.758,300
1997-08-26$174.38$174.378,270
1997-08-25$178.13$178.1210,810
1997-08-22$179.38$179.3820,090
1997-08-21$177.50$177.5033,970
1997-08-20$180.00$180.0025,500
1997-08-19$158.13$158.126,210
1997-08-18$158.75$158.7511,340
1997-08-15$158.75$158.7510,020
1997-08-14$157.50$157.5021,370
1997-08-13$145.63$145.6248,720
1997-08-12$174.38$174.37111,010
1997-08-11$151.25$151.2516,970
1997-08-08$141.88$141.876,790
1997-08-07$144.38$144.3711,480
1997-08-06$143.75$143.7520,550
1997-08-05$140.63$140.627,270
1997-08-04$140.63$140.6213,250
1997-08-01$139.38$139.373,930
1997-07-31$140.63$140.6210,430
1997-07-30$140.63$140.6213,800
1997-07-29$135.00$135.005,690
1997-07-28$133.13$133.124,480
1997-07-25$133.75$133.753,030
1997-07-24$133.75$133.757,410
1997-07-23$135.63$135.625,850
1997-07-22$133.75$133.757,330
1997-07-21$132.50$132.505,490
1997-07-18$133.75$133.7516,170
1997-07-17$135.00$135.009,510
1997-07-16$137.50$137.5021,970
1997-07-15$134.38$134.3715,280
1997-07-14$131.25$131.2518,250
1997-07-11$136.25$136.2519,930
1997-07-10$135.00$135.0022,680
1997-07-09$128.75$128.7581,120
1997-07-08$141.25$141.2586,200
1997-07-07$110.00$110.0022,230
1997-07-03$99.38$99.377,780
1997-07-02$101.25$101.259,770
1997-07-01$94.38$94.373,320
1997-06-30$86.88$86.874,220
1997-06-27$83.13$83.121,860
1997-06-26$83.13$83.121,520
1997-06-25$82.50$82.501,990
1997-06-24$83.13$83.123,540
1997-06-23$85.00$85.004,440
1997-06-20$88.13$88.121,930
1997-06-19$88.75$88.752,100
1997-06-18$88.13$88.121,730
1997-06-17$88.75$88.751,950
1997-06-16$88.75$88.753,620
1997-06-13$91.88$91.879,140
1997-06-12$87.50$87.505,930
1997-06-11$86.25$86.259,020
1997-06-10$79.38$79.373,000
1997-06-09$80.00$80.0016,080
1997-06-06$81.88$81.875,660
1997-06-05$83.13$83.125,310
1997-06-04$83.75$83.757,540
1997-06-03$84.38$84.375,800
1997-06-02$87.50$87.504,640
1997-05-30$88.75$88.753,110
1997-05-29$88.13$88.123,090
1997-05-28$88.13$88.124,990
1997-05-27$88.13$88.125,050
1997-05-23$91.25$91.257,170
1997-05-22$92.50$92.506,760
1997-05-21$92.50$92.504,030
1997-05-20$92.50$92.507,500
1997-05-19$93.13$93.128,560
1997-05-16$96.25$96.2511,270
1997-05-15$104.69$104.6930,300
1997-05-14$100.00$100.006,950
1997-05-13$99.38$99.372,390
1997-05-12$101.25$101.253,910
1997-05-09$101.25$101.256,700
1997-05-08$99.38$99.3714,570
1997-05-07$91.88$91.879,590
1997-05-06$89.38$89.374,000
1997-05-05$90.00$90.002,990
1997-05-02$89.38$89.378,860
1997-05-01$88.75$88.7510,100
1997-04-30$77.19$77.1922,570
1997-04-29$80.63$80.628,700
1997-04-28$85.00$85.003,960
1997-04-25$85.00$85.0010,890
1997-04-24$86.88$86.8720,280
1997-04-23$95.00$95.0015,600
1997-04-22$102.19$102.198,090
1997-04-21$102.19$102.194,640
1997-04-18$102.81$102.8111,130
1997-04-17$107.50$107.508,160
1997-04-16$106.25$106.255,240
1997-04-15$105.00$105.004,010
1997-04-14$104.38$104.373,990
1997-04-11$103.75$103.757,710
1997-04-10$105.31$105.311,540
1997-04-09$107.50$107.502,570
1997-04-08$108.75$108.756,860
1997-04-07$106.25$106.252,530
1997-04-04$105.63$105.623,420
1997-04-03$106.56$106.563,670
1997-04-02$110.00$110.003,410
1997-04-01$111.25$111.255,240
1997-03-31$106.88$106.875,290
1997-03-27$110.00$110.003,650
1997-03-26$110.00$110.002,640
1997-03-25$109.38$109.3710,640
1997-03-24$115.63$115.6211,440
1997-03-21$109.69$109.6911,240
1997-03-20$110.00$110.009,160
1997-03-19$105.31$105.316,390
1997-03-18$106.88$106.876,440
1997-03-17$110.63$110.6216,840
1997-03-14$117.19$117.1930,860
1997-03-13$100.94$100.9412,870
1997-03-12$101.88$101.876,210
1997-03-11$102.50$102.508,990
1997-03-10$103.13$103.126,360
1997-03-07$102.50$102.509,520
1997-03-06$102.50$102.5015,700
1997-03-05$102.50$102.5034,150
1997-03-04$101.88$101.8724,960
1997-03-03$110.63$110.6212,170
1997-02-28$115.31$115.3115,070
1997-02-27$115.31$115.3120,070
1997-02-26$118.75$118.7520,610
1997-02-25$125.31$125.3117,540
1997-02-24$126.25$126.2514,710
1997-02-21$125.63$125.6215,420
1997-02-20$125.63$125.6225,930
1997-02-19$136.88$136.8739,320
1997-02-18$133.13$133.1247,160
1997-02-14$117.50$117.5028,740
1997-02-13$111.88$111.8717,550
1997-02-12$103.13$103.128,720
1997-02-11$100.31$100.318,330
1997-02-10$102.50$102.5017,490
1997-02-07$100.94$100.9420,450
1997-02-06$107.19$107.1922,630
1997-02-05$103.13$103.129,730
1997-02-04$105.00$105.0010,940
1997-02-03$105.63$105.6226,760
1997-01-31$107.50$107.5028,940
1997-01-30$100.00$100.0077,560
1997-01-29$115.00$115.0044,790
1997-01-28$125.00$125.0022,710
1997-01-27$133.44$133.4425,800
1997-01-24$135.63$135.6254,750
1997-01-23$136.88$136.8771,770
1997-01-22$127.50$127.5057,740
1997-01-21$130.00$130.0071,460
1997-01-20$109.38$109.3738,920
1997-01-17$108.75$108.7562,440
1997-01-16$120.63$120.6263,900
1997-01-15$125.00$125.00215,240
1997-01-14$93.44$93.44255,760
1997-01-13$130.63$130.62277,660
1997-01-10$155.00$155.00278,640
1997-01-09$140.16$140.16432,980
1997-01-08$119.22$119.22239,580
1997-01-07$93.44$93.4437,160
1997-01-06$93.44$93.4480,680
1997-01-03$88.13$88.12107,280
1997-01-02$90.31$90.31142,300