NASDAQ:KOSS | Historical Stock Price | KOSS CORP

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
1980-03-17 to 2026-09-03
Data captured

Stock Price Chart

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

$0.15$0.47$1.47$4.62$14.51$45.631980-03-172026-08-27

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

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Historical Stock Price — 1997

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1997-12-31$2.88$2.87400
1997-12-30$3.00$3.007,200
1997-12-29$3.09$3.0921,600
1997-12-26$2.97$2.970
1997-12-24$2.97$2.972,000
1997-12-23$2.97$2.9714,800
1997-12-22$3.09$3.090
1997-12-19$3.09$3.0922,000
1997-12-18$2.97$2.975,200
1997-12-17$2.97$2.9714,000
1997-12-16$2.97$2.9713,600
1997-12-15$3.09$3.097,200
1997-12-12$3.09$3.090
1997-12-11$3.09$3.0980,800
1997-12-10$3.19$3.1938,800
1997-12-09$3.00$3.0028,400
1997-12-08$3.38$3.370
1997-12-05$3.38$3.3712,000
1997-12-04$3.38$3.373,200
1997-12-03$3.41$3.410
1997-12-02$3.41$3.416,400
1997-12-01$3.50$3.500
1997-11-28$3.50$3.507,600
1997-11-26$3.50$3.5010,000
1997-11-25$3.59$3.593,200
1997-11-24$3.47$3.4711,200
1997-11-21$3.59$3.596,000
1997-11-20$3.50$3.5026,800
1997-11-19$3.52$3.524,400
1997-11-18$3.52$3.5229,600
1997-11-17$3.72$3.7218,800
1997-11-14$3.59$3.591,600
1997-11-13$3.63$3.6218,000
1997-11-12$3.59$3.594,800
1997-11-11$3.59$3.5958,800
1997-11-10$3.63$3.6240,400
1997-11-07$3.56$3.5619,200
1997-11-06$3.56$3.5624,800
1997-11-05$3.56$3.5634,800
1997-11-04$3.63$3.6253,200
1997-11-03$3.50$3.5010,000
1997-10-31$3.50$3.5010,800
1997-10-30$3.53$3.5346,400
1997-10-29$3.50$3.5068,800
1997-10-28$3.56$3.5638,800
1997-10-27$3.44$3.4422,000
1997-10-24$3.61$3.61106,400
1997-10-23$3.38$3.3720,000
1997-10-22$3.63$3.62103,600
1997-10-21$3.38$3.3761,600
1997-10-20$3.13$3.1219,600
1997-10-17$2.81$2.8114,000
1997-10-16$3.14$3.1424,400
1997-10-15$3.44$3.446,800
1997-10-14$3.34$3.3419,200
1997-10-13$3.34$3.3423,600
1997-10-10$3.34$3.346,400
1997-10-09$3.34$3.3416,800
1997-10-08$3.47$3.472,000
1997-10-07$3.47$3.4775,200
1997-10-06$3.44$3.4433,600
1997-10-03$3.25$3.254,400
1997-10-02$3.25$3.2512,400
1997-10-01$3.38$3.3718,800
1997-09-30$3.16$3.167,200
1997-09-29$3.16$3.1627,600
1997-09-26$3.16$3.1610,800
1997-09-25$3.22$3.222,800
1997-09-24$3.22$3.2218,000
1997-09-23$3.13$3.128,800
1997-09-22$3.34$3.3420,800
1997-09-19$3.09$3.098,400
1997-09-18$3.22$3.2253,600
1997-09-17$3.28$3.289,200
1997-09-16$3.19$3.199,600
1997-09-15$3.25$3.2510,800
1997-09-12$3.44$3.440
1997-09-11$3.44$3.4421,200
1997-09-10$3.44$3.4416,800
1997-09-09$3.44$3.4426,800
1997-09-08$3.09$3.09400,000
1997-09-05$3.00$3.0016,000
1997-09-04$3.03$3.03236,800
1997-09-03$3.00$3.0067,600
1997-09-02$2.91$2.9159,200
1997-08-29$2.44$2.4436,400
1997-08-28$2.75$2.7538,800
1997-08-27$2.38$2.3731,600
1997-08-26$2.75$2.7515,600
1997-08-25$2.61$2.613,200
1997-08-22$2.41$2.4116,000
1997-08-21$2.63$2.6213,200
1997-08-20$2.55$2.550
1997-08-19$2.55$2.5512,400
1997-08-18$2.56$2.5612,400
1997-08-15$2.56$2.561,600
1997-08-14$2.56$2.5640,400
1997-08-13$2.56$2.56125,200
1997-08-12$2.50$2.50104,400
1997-08-11$2.19$2.1914,800
1997-08-08$2.52$2.5274,000
1997-08-07$2.44$2.4443,200
1997-08-06$2.50$2.506,000
1997-08-05$2.41$2.4163,600
1997-08-04$2.19$2.199,200
1997-08-01$2.19$2.192,800
1997-07-31$2.25$2.255,600
1997-07-30$2.44$2.4438,400
1997-07-29$2.25$2.251,600
1997-07-28$2.25$2.2554,800
1997-07-25$2.19$2.1923,600
1997-07-24$2.25$2.2514,800
1997-07-23$2.50$2.50161,200
1997-07-22$2.44$2.4415,600
1997-07-21$2.38$2.3718,000
1997-07-18$2.25$2.250
1997-07-17$2.25$2.2518,000
1997-07-16$2.19$2.194,000
1997-07-15$2.19$2.1915,600
1997-07-14$2.19$2.190
1997-07-11$2.19$2.194,000
1997-07-10$2.19$2.19800
1997-07-09$2.20$2.2012,000
1997-07-08$2.19$2.196,000
1997-07-07$2.19$2.19400
1997-07-03$2.19$2.190
1997-07-02$2.19$2.190
1997-07-01$2.19$2.196,800
1997-06-30$2.19$2.194,000
1997-06-27$2.19$2.190
1997-06-26$2.19$2.190
1997-06-25$2.19$2.192,000
1997-06-24$2.31$2.311,600
1997-06-23$2.19$2.193,600
1997-06-20$2.19$2.199,600
1997-06-19$2.19$2.1911,200
1997-06-18$2.19$2.1916,400
1997-06-17$2.19$2.19800
1997-06-16$2.50$2.502,800
1997-06-13$2.19$2.1920,400
1997-06-12$2.19$2.1920,000
1997-06-11$2.19$2.1915,600
1997-06-10$2.19$2.1946,800
1997-06-09$2.19$2.190
1997-06-06$2.19$2.1924,400
1997-06-05$2.38$2.3712,400
1997-06-04$2.22$2.2243,200
1997-06-03$2.19$2.190
1997-06-02$2.19$2.198,800
1997-05-30$2.19$2.190
1997-05-29$2.19$2.1912,800
1997-05-28$2.19$2.195,600
1997-05-27$2.25$2.2518,800
1997-05-23$2.50$2.50800
1997-05-22$2.50$2.509,200
1997-05-21$2.19$2.1932,000
1997-05-20$2.19$2.1936,800
1997-05-19$2.19$2.19800
1997-05-16$2.19$2.191,200
1997-05-15$2.19$2.190
1997-05-14$2.19$2.196,000
1997-05-13$2.25$2.256,000
1997-05-12$2.50$2.501,600
1997-05-09$2.25$2.251,600
1997-05-08$2.50$2.5011,600
1997-05-07$2.34$2.3491,600
1997-05-06$2.38$2.374,000
1997-05-05$2.19$2.190
1997-05-02$2.19$2.199,600
1997-05-01$2.25$2.2547,200
1997-04-30$2.50$2.5014,800
1997-04-29$2.50$2.5032,000
1997-04-28$2.53$2.53117,600
1997-04-25$2.50$2.50210,000
1997-04-24$2.50$2.50234,000
1997-04-23$2.50$2.50238,400
1997-04-22$2.50$2.50177,600
1997-04-21$2.53$2.53134,400
1997-04-18$2.53$2.5341,200
1997-04-17$2.50$2.5090,000
1997-04-16$2.59$2.594,000
1997-04-15$2.63$2.622,800
1997-04-14$2.50$2.5017,600
1997-04-11$2.63$2.6212,800
1997-04-10$2.53$2.530
1997-04-09$2.53$2.5337,200
1997-04-08$2.56$2.564,000
1997-04-07$2.50$2.506,000
1997-04-04$2.78$2.7816,400
1997-04-03$2.50$2.500
1997-04-02$2.50$2.503,200
1997-04-01$2.67$2.67146,400
1997-03-31$2.50$2.5020,000
1997-03-27$2.78$2.785,200
1997-03-26$2.59$2.5910,400
1997-03-25$2.73$2.732,400
1997-03-24$2.81$2.8111,200
1997-03-21$2.72$2.720
1997-03-20$2.72$2.7237,600
1997-03-19$2.50$2.503,600
1997-03-18$2.59$2.595,600
1997-03-17$2.50$2.505,200
1997-03-14$2.56$2.564,000
1997-03-13$2.50$2.502,400
1997-03-12$2.50$2.500
1997-03-11$2.50$2.5014,400
1997-03-10$2.53$2.534,800
1997-03-07$2.53$2.5377,600
1997-03-06$2.50$2.508,400
1997-03-05$2.53$2.5332,000
1997-03-04$2.50$2.508,400
1997-03-03$2.50$2.502,000
1997-02-28$2.53$2.5342,000
1997-02-27$2.50$2.5040,000
1997-02-26$2.53$2.5359,200
1997-02-25$2.50$2.5020,800
1997-02-24$2.53$2.5349,200
1997-02-21$2.50$2.50110,800
1997-02-20$2.50$2.5030,400
1997-02-19$2.50$2.5022,400
1997-02-18$2.50$2.5038,000
1997-02-14$2.50$2.5054,400
1997-02-13$2.50$2.5038,800
1997-02-12$2.50$2.5017,600
1997-02-11$2.53$2.5340,000
1997-02-10$2.70$2.7018,000
1997-02-07$2.75$2.758,000
1997-02-06$2.91$2.9112,000
1997-02-05$2.91$2.9138,800
1997-02-04$3.00$3.0083,600
1997-02-03$2.63$2.6264,400
1997-01-31$2.91$2.913,600
1997-01-30$2.81$2.8115,200
1997-01-29$2.81$2.8119,200
1997-01-28$3.06$3.06127,600
1997-01-27$2.96$2.9638,800
1997-01-24$2.94$2.9479,200
1997-01-23$2.94$2.9430,000
1997-01-22$2.94$2.9460,400
1997-01-21$2.94$2.94243,200
1997-01-20$2.81$2.81369,200
1997-01-17$2.47$2.4754,800
1997-01-16$2.50$2.50122,000
1997-01-15$2.53$2.5376,800
1997-01-14$2.63$2.62208,400
1997-01-13$2.56$2.56408,800
1997-01-10$2.88$2.87354,000
1997-01-09$2.81$2.811,220,000
1997-01-08$2.44$2.44763,200
1997-01-07$1.66$1.6616,000
1997-01-06$1.56$1.565,600
1997-01-03$1.75$1.754,000
1997-01-02$1.75$1.752,400