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 — 1983

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1983-12-30$0.84$0.8448,800
1983-12-29$0.78$0.78102,400
1983-12-28$0.84$0.8420,400
1983-12-27$0.94$0.9441,600
1983-12-23$0.91$0.914,000
1983-12-22$0.94$0.9418,400
1983-12-21$0.91$0.912,000
1983-12-20$0.91$0.918,800
1983-12-19$0.94$0.948,400
1983-12-16$0.94$0.9434,400
1983-12-15$0.97$0.974,800
1983-12-14$0.97$0.9731,600
1983-12-13$1.00$1.0010,400
1983-12-12$1.00$1.0014,400
1983-12-09$1.00$1.009,200
1983-12-08$1.03$1.0328,000
1983-12-07$1.00$1.005,200
1983-12-06$1.00$1.004,800
1983-12-05$1.00$1.0016,000
1983-12-02$1.00$1.000
1983-12-01$1.00$1.0020,800
1983-11-30$1.03$1.0310,400
1983-11-29$1.03$1.037,600
1983-11-28$0.97$0.97400
1983-11-25$1.00$1.000
1983-11-23$1.00$1.009,600
1983-11-22$1.06$1.0626,000
1983-11-21$1.06$1.0619,600
1983-11-18$1.06$1.0616,800
1983-11-17$1.13$1.121,600
1983-11-16$1.13$1.1210,400
1983-11-15$1.06$1.0640,400
1983-11-14$1.03$1.0358,800
1983-11-11$1.03$1.0311,600
1983-11-10$1.03$1.0322,800
1983-11-09$1.03$1.038,400
1983-11-08$1.03$1.031,600
1983-11-07$1.03$1.036,800
1983-11-04$0.97$0.9728,400
1983-11-03$1.00$1.0019,200
1983-11-02$1.00$1.0082,800
1983-11-01$1.09$1.0913,200
1983-10-31$1.16$1.1635,600
1983-10-28$1.19$1.1921,200
1983-10-27$1.28$1.28152,000
1983-10-26$1.44$1.44136,000
1983-10-25$1.41$1.4116,800
1983-10-24$1.47$1.4710,800
1983-10-21$1.44$1.445,200
1983-10-20$1.47$1.4718,800
1983-10-19$1.47$1.4724,400
1983-10-18$1.50$1.5018,000
1983-10-17$1.56$1.561,600
1983-10-14$1.56$1.566,400
1983-10-13$1.59$1.592,000
1983-10-12$1.59$1.5910,800
1983-10-11$1.59$1.592,400
1983-10-10$1.59$1.5925,600
1983-10-07$1.63$1.629,200
1983-10-06$1.63$1.6210,400
1983-10-05$1.63$1.624,000
1983-10-04$1.63$1.6233,600
1983-10-03$1.59$1.597,200
1983-09-30$1.63$1.623,600
1983-09-29$1.66$1.664,400
1983-09-28$1.66$1.667,200
1983-09-27$1.59$1.599,200
1983-09-26$1.56$1.5613,200
1983-09-23$1.56$1.5610,400
1983-09-22$1.59$1.598,800
1983-09-21$1.63$1.6216,800
1983-09-20$1.59$1.599,200
1983-09-19$1.63$1.6227,200
1983-09-16$1.63$1.62101,600
1983-09-15$1.59$1.5912,000
1983-09-14$1.66$1.6622,400
1983-09-13$1.69$1.6938,400
1983-09-12$1.69$1.69162,800
1983-09-09$1.50$1.5010,800
1983-09-08$1.56$1.569,200
1983-09-07$1.59$1.5926,800
1983-09-06$1.63$1.6234,000
1983-09-02$1.63$1.6217,200
1983-09-01$1.69$1.6951,200
1983-08-31$1.72$1.7228,400
1983-08-30$1.69$1.6911,600
1983-08-29$1.66$1.6629,600
1983-08-26$1.63$1.627,200
1983-08-25$1.63$1.6228,800
1983-08-24$1.66$1.6611,200
1983-08-23$1.63$1.6235,200
1983-08-22$1.63$1.6228,000
1983-08-19$1.63$1.6225,600
1983-08-18$1.66$1.6688,400
1983-08-17$1.47$1.4738,000
1983-08-16$1.38$1.37152,000
1983-08-15$1.31$1.3114,400
1983-08-12$1.31$1.3113,200
1983-08-11$1.31$1.312,800
1983-08-10$1.28$1.2811,600
1983-08-09$1.28$1.2817,200
1983-08-08$1.34$1.3469,600
1983-08-05$1.47$1.4727,200
1983-08-04$1.47$1.4715,200
1983-08-03$1.50$1.5014,400
1983-08-02$1.53$1.531,200
1983-08-01$1.53$1.5318,000
1983-07-29$1.53$1.5346,400
1983-07-28$1.50$1.500
1983-07-27$1.50$1.5038,800
1983-07-26$1.59$1.5928,800
1983-07-25$1.59$1.5939,600
1983-07-22$1.50$1.5014,800
1983-07-21$1.47$1.4712,000
1983-07-20$1.47$1.4743,200
1983-07-19$1.47$1.4716,000
1983-07-18$1.53$1.5338,800
1983-07-15$1.56$1.5614,000
1983-07-14$1.59$1.5910,400
1983-07-13$1.59$1.598,800
1983-07-12$1.59$1.5941,200
1983-07-11$1.59$1.5930,800
1983-07-08$1.56$1.5626,800
1983-07-07$1.56$1.5624,000
1983-07-06$1.53$1.537,600
1983-07-05$1.56$1.562,000
1983-07-01$1.56$1.5631,600
1983-06-30$1.63$1.6221,600
1983-06-29$1.59$1.594,800
1983-06-28$1.63$1.6218,400
1983-06-27$1.66$1.6633,600
1983-06-24$1.69$1.6914,000
1983-06-23$1.66$1.6614,800
1983-06-22$1.63$1.62251,600
1983-06-21$1.66$1.66124,400
1983-06-20$1.41$1.4122,800
1983-06-17$1.41$1.4125,600
1983-06-16$1.41$1.4123,200
1983-06-15$1.41$1.4130,400
1983-06-14$1.44$1.4448,400
1983-06-13$1.47$1.4727,600
1983-06-10$1.38$1.3722,400
1983-06-09$1.38$1.3744,000
1983-06-08$1.31$1.3172,800
1983-06-07$1.31$1.3112,800
1983-06-06$1.31$1.3155,200
1983-06-03$1.31$1.3124,400
1983-06-02$1.31$1.3136,400
1983-06-01$1.31$1.3115,200
1983-05-31$1.34$1.3420,400
1983-05-27$1.34$1.3412,400
1983-05-26$1.31$1.3117,600
1983-05-25$1.28$1.2831,200
1983-05-24$1.28$1.2816,000
1983-05-23$1.28$1.284,800
1983-05-20$1.28$1.286,400
1983-05-19$1.28$1.285,200
1983-05-18$1.28$1.289,600
1983-05-17$1.28$1.2820,400
1983-05-16$1.31$1.3133,600
1983-05-13$1.34$1.3424,000
1983-05-12$1.34$1.344,400
1983-05-11$1.34$1.3413,200
1983-05-10$1.34$1.348,400
1983-05-09$1.34$1.3410,400
1983-05-06$1.34$1.3428,400
1983-05-05$1.34$1.343,200
1983-05-04$1.34$1.3411,600
1983-05-03$1.34$1.349,200
1983-05-02$1.34$1.348,000
1983-04-29$1.34$1.3423,200
1983-04-28$1.34$1.3428,400
1983-04-27$1.28$1.2822,800
1983-04-26$1.34$1.3471,600
1983-04-25$1.41$1.4119,600
1983-04-22$1.41$1.4164,400
1983-04-21$1.38$1.3743,200
1983-04-20$1.22$1.2229,200
1983-04-19$1.22$1.2234,400
1983-04-18$1.22$1.2268,400
1983-04-15$1.25$1.2526,800
1983-04-14$1.28$1.2814,400
1983-04-13$1.31$1.3160,400
1983-04-12$1.22$1.2297,600
1983-04-11$1.19$1.1928,800
1983-04-08$1.13$1.1233,600
1983-04-07$1.13$1.1226,000
1983-04-06$1.13$1.120
1983-04-05$1.13$1.1212,800
1983-04-04$1.13$1.1217,200
1983-03-31$1.13$1.1214,400
1983-03-30$1.13$1.128,800
1983-03-29$1.09$1.0922,000
1983-03-28$1.09$1.0911,600
1983-03-25$1.09$1.0918,400
1983-03-24$1.09$1.0959,600
1983-03-23$1.09$1.0938,000
1983-03-22$1.09$1.094,400
1983-03-21$1.09$1.090
1983-03-18$1.09$1.092,400
1983-03-17$1.09$1.093,600
1983-03-16$1.09$1.0914,800
1983-03-15$1.16$1.1610,800
1983-03-14$1.19$1.1929,200
1983-03-11$1.19$1.1940,800
1983-03-10$1.16$1.1630,400
1983-03-09$1.13$1.1231,200
1983-03-08$1.13$1.1221,600
1983-03-07$1.13$1.1215,600
1983-03-04$1.13$1.127,600
1983-03-03$1.13$1.1211,200
1983-03-02$1.13$1.1222,400
1983-03-01$1.13$1.124,800
1983-02-28$1.13$1.127,200
1983-02-25$1.13$1.1235,200
1983-02-24$1.13$1.1233,600
1983-02-23$1.13$1.122,000
1983-02-22$1.13$1.1217,600
1983-02-18$1.13$1.129,600
1983-02-17$1.13$1.124,000
1983-02-16$1.13$1.1218,000
1983-02-15$1.13$1.1228,400
1983-02-14$1.13$1.1219,200
1983-02-11$1.13$1.1218,800
1983-02-10$1.09$1.0918,000
1983-02-09$1.09$1.098,800
1983-02-08$1.09$1.09400
1983-02-07$1.09$1.094,000
1983-02-04$1.06$1.0610,000
1983-02-03$1.06$1.0612,800
1983-02-02$1.06$1.0628,000
1983-02-01$1.09$1.0934,400
1983-01-31$1.13$1.127,200
1983-01-28$1.13$1.1223,600
1983-01-27$1.16$1.1641,600
1983-01-26$1.16$1.1610,000
1983-01-25$1.16$1.1612,400
1983-01-24$1.16$1.1614,800
1983-01-21$1.19$1.198,000
1983-01-20$1.19$1.196,800
1983-01-19$1.19$1.1911,600
1983-01-18$1.19$1.1921,200
1983-01-17$1.22$1.2211,200
1983-01-14$1.22$1.228,000
1983-01-13$1.22$1.228,000
1983-01-12$1.25$1.258,400
1983-01-11$1.25$1.256,000
1983-01-10$1.22$1.2211,600
1983-01-07$1.19$1.1920,800
1983-01-06$1.19$1.1919,200
1983-01-05$1.19$1.198,400
1983-01-04$1.19$1.196,400
1983-01-03$1.16$1.1611,200