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.

View year

Historical Stock Price — 1984

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1984-12-31$0.16$0.1655,600
1984-12-28$0.19$0.1938,000
1984-12-27$0.19$0.1914,800
1984-12-26$0.19$0.1928,000
1984-12-24$0.25$0.2542,400
1984-12-21$0.22$0.2259,200
1984-12-20$0.31$0.3140,000
1984-12-19$0.31$0.3123,200
1984-12-18$0.31$0.3111,200
1984-12-17$0.38$0.378,400
1984-12-14$0.31$0.3112,800
1984-12-13$0.31$0.3114,000
1984-12-12$0.31$0.3127,600
1984-12-11$0.31$0.317,200
1984-12-10$0.31$0.316,400
1984-12-07$0.31$0.3115,200
1984-12-06$0.31$0.316,000
1984-12-05$0.34$0.3432,400
1984-12-04$0.31$0.3164,400
1984-12-03$0.31$0.3122,000
1984-11-30$0.34$0.345,600
1984-11-29$0.34$0.34800
1984-11-28$0.38$0.3740,800
1984-11-27$0.38$0.3720,000
1984-11-26$0.38$0.3794,800
1984-11-23$0.38$0.3713,200
1984-11-21$0.41$0.41400
1984-11-20$0.41$0.4111,600
1984-11-19$0.41$0.414,000
1984-11-16$0.38$0.377,600
1984-11-15$0.41$0.416,000
1984-11-14$0.38$0.376,400
1984-11-13$0.38$0.3729,200
1984-11-12$0.44$0.443,600
1984-11-09$0.44$0.4410,000
1984-11-08$0.44$0.4421,200
1984-11-07$0.44$0.449,200
1984-11-06$0.44$0.442,000
1984-11-05$0.44$0.4446,800
1984-11-02$0.44$0.448,000
1984-11-01$0.44$0.445,200
1984-10-31$0.44$0.444,400
1984-10-30$0.47$0.4710,800
1984-10-29$0.44$0.448,000
1984-10-26$0.44$0.4423,200
1984-10-25$0.50$0.5036,400
1984-10-24$0.47$0.4733,200
1984-10-23$0.53$0.5315,200
1984-10-22$0.53$0.534,400
1984-10-19$0.50$0.500
1984-10-18$0.50$0.500
1984-10-17$0.50$0.506,800
1984-10-16$0.53$0.532,000
1984-10-15$0.53$0.538,000
1984-10-12$0.47$0.47400
1984-10-11$0.50$0.5012,400
1984-10-10$0.50$0.506,000
1984-10-09$0.56$0.56800
1984-10-08$0.50$0.501,200
1984-10-05$0.50$0.504,400
1984-10-04$0.56$0.566,400
1984-10-03$0.59$0.5914,000
1984-10-02$0.53$0.53400
1984-10-01$0.53$0.532,000
1984-09-28$0.56$0.568,800
1984-09-27$0.53$0.53400
1984-09-26$0.59$0.596,800
1984-09-25$0.59$0.595,200
1984-09-24$0.59$0.599,200
1984-09-21$0.66$0.6614,800
1984-09-20$0.63$0.623,600
1984-09-19$0.59$0.596,000
1984-09-18$0.50$0.5023,600
1984-09-17$0.56$0.562,000
1984-09-14$0.53$0.53490,400
1984-09-13$0.47$0.476,000
1984-09-12$0.47$0.471,600
1984-09-11$0.44$0.444,800
1984-09-10$0.47$0.478,800
1984-09-07$0.44$0.4413,600
1984-09-06$0.44$0.448,800
1984-09-05$0.50$0.50400
1984-09-04$0.50$0.50800
1984-08-31$0.50$0.50400
1984-08-30$0.50$0.5014,800
1984-08-29$0.50$0.507,600
1984-08-28$0.50$0.502,000
1984-08-27$0.50$0.5015,600
1984-08-24$0.50$0.5010,400
1984-08-23$0.47$0.4716,400
1984-08-22$0.50$0.5012,400
1984-08-21$0.50$0.508,400
1984-08-20$0.50$0.504,400
1984-08-17$0.53$0.530
1984-08-16$0.53$0.532,400
1984-08-15$0.47$0.471,200
1984-08-14$0.47$0.471,200
1984-08-13$0.50$0.500
1984-08-10$0.50$0.5036,800
1984-08-09$0.50$0.5021,600
1984-08-08$0.50$0.5024,000
1984-08-07$0.50$0.5012,400
1984-08-06$0.56$0.563,600
1984-08-03$0.56$0.5612,400
1984-08-02$0.56$0.562,400
1984-08-01$0.63$0.6213,200
1984-07-31$0.56$0.563,200
1984-07-30$0.63$0.620
1984-07-27$0.63$0.62400
1984-07-26$0.59$0.590
1984-07-25$0.59$0.595,600
1984-07-24$0.56$0.565,200
1984-07-23$0.56$0.560
1984-07-20$0.56$0.563,200
1984-07-19$0.59$0.594,000
1984-07-18$0.59$0.593,600
1984-07-17$0.63$0.6210,400
1984-07-16$0.63$0.62800
1984-07-13$0.66$0.660
1984-07-12$0.66$0.668,800
1984-07-11$0.63$0.625,200
1984-07-10$0.72$0.724,400
1984-07-09$0.72$0.721,200
1984-07-06$0.63$0.6220,000
1984-07-05$0.56$0.5612,000
1984-07-03$0.50$0.502,400
1984-07-02$0.56$0.562,400
1984-06-29$0.50$0.5014,400
1984-06-28$0.47$0.4720,000
1984-06-27$0.44$0.4426,400
1984-06-26$0.56$0.562,000
1984-06-25$0.53$0.5313,600
1984-06-22$0.56$0.560
1984-06-21$0.56$0.56400
1984-06-20$0.56$0.560
1984-06-19$0.56$0.566,000
1984-06-18$0.56$0.562,000
1984-06-15$0.53$0.537,200
1984-06-14$0.56$0.560
1984-06-13$0.56$0.563,200
1984-06-12$0.56$0.560
1984-06-11$0.56$0.56400
1984-06-08$0.56$0.5610,000
1984-06-07$0.53$0.534,800
1984-06-06$0.53$0.5324,800
1984-06-05$0.59$0.5911,200
1984-06-04$0.59$0.5910,800
1984-06-01$0.53$0.532,000
1984-05-31$0.59$0.590
1984-05-30$0.59$0.598,400
1984-05-29$0.56$0.5632,000
1984-05-25$0.53$0.5326,800
1984-05-24$0.59$0.5911,600
1984-05-23$0.56$0.568,000
1984-05-22$0.53$0.532,000
1984-05-21$0.53$0.531,600
1984-05-18$0.59$0.59400
1984-05-17$0.56$0.568,800
1984-05-16$0.59$0.5912,800
1984-05-15$0.56$0.5611,600
1984-05-14$0.63$0.620
1984-05-11$0.63$0.6214,800
1984-05-10$0.56$0.563,200
1984-05-09$0.59$0.597,600
1984-05-08$0.56$0.569,200
1984-05-07$0.59$0.599,600
1984-05-04$0.56$0.567,600
1984-05-03$0.59$0.5910,800
1984-05-02$0.63$0.629,200
1984-05-01$0.59$0.5946,800
1984-04-30$0.63$0.6241,600
1984-04-27$0.59$0.5976,000
1984-04-26$0.69$0.6919,200
1984-04-25$0.75$0.7510,000
1984-04-24$0.72$0.7212,800
1984-04-23$0.78$0.7810,000
1984-04-19$0.81$0.818,400
1984-04-18$0.78$0.785,600
1984-04-17$0.81$0.8128,000
1984-04-16$0.75$0.752,400
1984-04-13$0.75$0.7510,800
1984-04-12$0.75$0.757,200
1984-04-11$0.81$0.8110,400
1984-04-10$0.75$0.750
1984-04-09$0.75$0.750
1984-04-06$0.75$0.7513,600
1984-04-05$0.78$0.78800
1984-04-04$0.78$0.786,400
1984-04-03$0.78$0.7824,800
1984-04-02$0.78$0.7830,800
1984-03-30$0.75$0.752,000
1984-03-29$0.81$0.812,400
1984-03-28$0.75$0.75400
1984-03-27$0.75$0.755,600
1984-03-26$0.78$0.7811,600
1984-03-23$0.81$0.815,600
1984-03-22$0.81$0.8120,000
1984-03-21$0.84$0.846,000
1984-03-20$0.84$0.846,800
1984-03-19$0.84$0.84400
1984-03-16$0.94$0.942,000
1984-03-15$0.94$0.942,000
1984-03-14$0.91$0.9116,000
1984-03-13$0.88$0.8824,800
1984-03-12$0.91$0.9122,400
1984-03-09$0.84$0.8460,800
1984-03-08$0.81$0.815,200
1984-03-07$0.81$0.817,200
1984-03-06$0.81$0.8163,200
1984-03-05$0.72$0.7211,200
1984-03-02$0.72$0.722,000
1984-03-01$0.72$0.726,000
1984-02-29$0.66$0.6613,200
1984-02-28$0.66$0.6610,800
1984-02-27$0.66$0.66800
1984-02-24$0.66$0.6623,200
1984-02-23$0.69$0.6948,800
1984-02-22$0.69$0.6938,000
1984-02-21$0.75$0.757,200
1984-02-17$0.72$0.720
1984-02-16$0.72$0.724,800
1984-02-15$0.81$0.810
1984-02-14$0.81$0.813,200
1984-02-13$0.81$0.8121,200
1984-02-10$0.81$0.817,600
1984-02-09$0.78$0.7814,400
1984-02-08$0.81$0.818,000
1984-02-07$0.81$0.8110,000
1984-02-06$0.84$0.8422,800
1984-02-03$0.84$0.8420,800
1984-02-02$0.88$0.888,800
1984-02-01$0.84$0.848,400
1984-01-31$0.88$0.883,600
1984-01-30$0.84$0.842,800
1984-01-27$0.91$0.910
1984-01-26$0.91$0.918,800
1984-01-25$0.88$0.886,000
1984-01-24$0.94$0.944,000
1984-01-23$0.88$0.886,000
1984-01-20$0.97$0.9717,600
1984-01-19$0.91$0.9114,800
1984-01-18$0.91$0.9124,000
1984-01-17$0.94$0.9414,800
1984-01-16$0.91$0.91400
1984-01-13$0.97$0.974,800
1984-01-12$0.94$0.948,400
1984-01-11$0.97$0.9710,000
1984-01-10$1.00$1.002,400
1984-01-09$0.97$0.97400
1984-01-06$0.94$0.9423,600
1984-01-05$1.00$1.0027,200
1984-01-04$0.88$0.8816,800
1984-01-03$0.88$0.8826,400