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 — 2002

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2002-12-31$9.33$9.77600
2002-12-30$9.01$9.44800
2002-12-27$9.24$9.670
2002-12-26$9.30$9.675,800
2002-12-24$9.25$9.626,400
2002-12-23$9.38$9.752,600
2002-12-20$9.06$9.42400
2002-12-19$9.15$9.52600
2002-12-18$9.08$9.45600
2002-12-17$9.01$9.37800
2002-12-16$9.08$9.440
2002-12-13$9.08$9.444,200
2002-12-12$9.05$9.410
2002-12-11$9.05$9.4116,600
2002-12-10$8.76$9.11400
2002-12-09$8.87$9.22200
2002-12-06$8.87$9.232,400
2002-12-05$8.73$9.080
2002-12-04$8.73$9.081,200
2002-12-03$8.80$9.150
2002-12-02$8.80$9.157,200
2002-11-29$8.80$9.152,000
2002-11-27$8.54$8.881,000
2002-11-26$8.38$8.712,200
2002-11-25$8.26$8.592,200
2002-11-22$8.44$8.771,200
2002-11-21$8.49$8.830
2002-11-20$8.49$8.831,000
2002-11-19$8.76$9.110
2002-11-18$8.76$9.1118,400
2002-11-15$8.75$9.100
2002-11-14$8.75$9.103,600
2002-11-13$8.95$9.31600
2002-11-12$8.76$9.112,000
2002-11-11$9.14$9.50400
2002-11-08$9.01$9.370
2002-11-07$9.01$9.37400
2002-11-06$9.30$9.672,200
2002-11-05$9.38$9.7513,000
2002-11-04$8.62$8.973,400
2002-11-01$8.75$9.101,000
2002-10-31$8.88$9.230
2002-10-30$8.88$9.230
2002-10-29$8.88$9.230
2002-10-28$8.88$9.233,000
2002-10-25$8.50$8.840
2002-10-24$8.50$8.844,800
2002-10-23$8.50$8.840
2002-10-22$8.50$8.841,200
2002-10-21$8.38$8.714,800
2002-10-18$7.98$8.30200
2002-10-17$7.83$8.141,400
2002-10-16$7.88$8.200
2002-10-15$7.88$8.208,600
2002-10-14$7.75$8.060
2002-10-11$7.75$8.060
2002-10-10$7.75$8.060
2002-10-09$7.75$8.061,000
2002-10-08$7.75$8.060
2002-10-07$7.75$8.064,600
2002-10-04$7.75$8.061,600
2002-10-03$7.77$8.085,800
2002-10-02$8.11$8.43200
2002-10-01$7.80$8.114,600
2002-09-30$8.08$8.401,400
2002-09-27$8.08$8.40800
2002-09-26$8.08$8.403,600
2002-09-25$8.05$8.315,400
2002-09-24$8.05$8.31200
2002-09-23$8.21$8.470
2002-09-20$8.21$8.47200
2002-09-19$8.13$8.38400
2002-09-18$8.05$8.311,400
2002-09-17$8.45$8.7223,200
2002-09-16$8.06$8.311,400
2002-09-13$8.05$8.311,800
2002-09-12$8.05$8.310
2002-09-11$8.05$8.310
2002-09-10$8.05$8.31400
2002-09-09$8.05$8.310
2002-09-06$8.05$8.312,400
2002-09-05$8.06$8.32200
2002-09-04$8.13$8.383,200
2002-09-03$8.30$8.562,600
2002-08-30$8.25$8.510
2002-08-29$8.25$8.511,600
2002-08-28$8.21$8.47600
2002-08-27$8.41$8.677,200
2002-08-26$8.38$8.64200
2002-08-23$8.48$8.75400
2002-08-22$8.48$8.751,400
2002-08-21$8.50$8.775,000
2002-08-20$8.38$8.640
2002-08-19$8.38$8.64400
2002-08-16$8.38$8.641,000
2002-08-15$8.38$8.64200
2002-08-14$8.30$8.560
2002-08-13$8.30$8.561,200
2002-08-12$8.26$8.521,800
2002-08-09$8.38$8.64400
2002-08-08$8.75$9.032,000
2002-08-07$8.72$9.001,000
2002-08-06$8.50$8.771,600
2002-08-05$8.75$9.030
2002-08-02$8.75$9.032,600
2002-08-01$8.75$9.020
2002-07-31$8.75$9.02200
2002-07-30$8.63$8.90600
2002-07-29$8.50$8.773,600
2002-07-26$8.43$8.69400
2002-07-25$8.50$8.771,600
2002-07-24$8.43$8.690
2002-07-23$8.43$8.698,000
2002-07-22$8.43$8.694,800
2002-07-19$8.45$8.725,400
2002-07-18$8.51$8.787,200
2002-07-17$8.55$8.820
2002-07-16$8.55$8.824,200
2002-07-15$8.60$8.870
2002-07-12$8.60$8.874,400
2002-07-11$8.51$8.784,400
2002-07-10$8.60$8.87200
2002-07-09$8.60$8.87400
2002-07-08$8.51$8.781,200
2002-07-05$8.40$8.67600
2002-07-03$8.40$8.67600
2002-07-02$8.40$8.67200
2002-07-01$8.38$8.640
2002-06-28$8.38$8.6417,600
2002-06-27$8.35$8.624,600
2002-06-26$8.45$8.714,000
2002-06-25$8.40$8.611,800
2002-06-24$8.25$8.453,400
2002-06-21$8.10$8.30400
2002-06-20$8.40$8.612,600
2002-06-19$8.48$8.6810,400
2002-06-18$8.54$8.741,600
2002-06-17$8.51$8.726,600
2002-06-14$8.38$8.58400
2002-06-13$8.39$8.590
2002-06-12$8.39$8.591,200
2002-06-11$8.50$8.712,400
2002-06-10$8.65$8.860
2002-06-07$8.65$8.860
2002-06-06$8.65$8.860
2002-06-05$8.65$8.861,800
2002-06-04$8.25$8.458,200
2002-06-03$8.75$8.962,000
2002-05-31$8.75$8.962,400
2002-05-30$8.75$8.96400
2002-05-29$8.99$9.210
2002-05-28$8.99$9.21200
2002-05-24$9.02$9.242,000
2002-05-23$8.98$9.201,000
2002-05-22$8.98$9.200
2002-05-21$8.98$9.20800
2002-05-20$9.38$9.606,800
2002-05-17$9.00$9.223,200
2002-05-16$8.88$9.106,800
2002-05-15$9.02$9.243,000
2002-05-14$8.95$9.17200
2002-05-13$8.98$9.195,200
2002-05-10$9.00$9.223,600
2002-05-09$9.07$9.294,600
2002-05-08$8.80$9.025,200
2002-05-07$8.75$8.9610,200
2002-05-06$8.50$8.71800
2002-05-03$8.50$8.711,600
2002-05-02$8.75$8.961,400
2002-05-01$8.55$8.766,600
2002-04-30$8.85$9.073,800
2002-04-29$8.50$8.7110,000
2002-04-26$8.05$8.256,600
2002-04-25$8.40$8.61200
2002-04-24$8.40$8.615,400
2002-04-23$8.25$8.451,600
2002-04-22$7.95$8.14600
2002-04-19$8.38$8.58200
2002-04-18$8.13$8.320
2002-04-17$8.13$8.320
2002-04-16$8.13$8.3221,000
2002-04-15$7.53$7.713,400
2002-04-12$7.53$7.71800
2002-04-11$7.53$7.71200
2002-04-10$7.50$7.68400
2002-04-09$7.45$7.633,000
2002-04-08$7.25$7.433,600
2002-04-05$7.30$7.488,200
2002-04-04$7.28$7.453,400
2002-04-03$7.25$7.424,600
2002-04-02$7.48$7.66600
2002-04-01$7.35$7.532,200
2002-03-28$7.20$7.388,800
2002-03-27$7.50$7.681,600
2002-03-26$7.55$7.733,000
2002-03-25$7.63$7.751,800
2002-03-22$7.78$7.90600
2002-03-21$7.93$8.051,200
2002-03-20$7.65$7.771,200
2002-03-19$7.95$8.071,400
2002-03-18$7.73$7.850
2002-03-15$7.73$7.852,800
2002-03-14$7.90$8.020
2002-03-13$7.90$8.022,000
2002-03-12$7.90$8.02400
2002-03-11$7.68$7.8011,400
2002-03-08$7.38$7.493,000
2002-03-07$7.50$7.626,200
2002-03-06$7.52$7.636,200
2002-03-05$7.85$7.973,200
2002-03-04$8.01$8.141,800
2002-03-01$8.50$8.63400
2002-02-28$8.50$8.630
2002-02-27$8.50$8.635,000
2002-02-26$8.25$8.3812,000
2002-02-25$8.50$8.632,800
2002-02-22$8.45$8.582,200
2002-02-21$8.41$8.545,400
2002-02-20$8.05$8.18600
2002-02-19$7.88$8.00600
2002-02-15$7.88$8.00400
2002-02-14$7.93$8.053,000
2002-02-13$7.93$8.052,000
2002-02-12$8.09$8.22600
2002-02-11$8.25$8.38800
2002-02-08$7.88$8.001,000
2002-02-07$8.00$8.139,200
2002-02-06$7.88$8.002,800
2002-02-05$7.80$7.926,200
2002-02-04$7.95$8.086,800
2002-02-01$7.75$7.87200
2002-01-31$7.75$7.876,800
2002-01-30$7.25$7.368,000
2002-01-29$7.23$7.34200
2002-01-28$7.20$7.310
2002-01-25$7.20$7.310
2002-01-24$7.20$7.318,000
2002-01-23$7.15$7.262,600
2002-01-22$7.13$7.240
2002-01-18$7.13$7.242,800
2002-01-17$7.10$7.211,000
2002-01-16$7.15$7.261,400
2002-01-15$7.25$7.361,600
2002-01-14$7.45$7.57800
2002-01-11$7.46$7.57200
2002-01-10$7.38$7.496,200
2002-01-09$7.25$7.3610,800
2002-01-08$7.34$7.4611,600
2002-01-07$7.11$7.221,000
2002-01-04$7.03$7.145,800
2002-01-03$7.45$7.573,400
2002-01-02$7.48$7.602,200