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 — 2010

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2010-12-31$5.00$7.355,600
2010-12-30$4.86$7.152,100
2010-12-29$4.99$7.345,000
2010-12-28$4.80$6.9713,200
2010-12-27$4.79$6.9613,000
2010-12-23$5.04$7.3219,900
2010-12-22$4.97$7.222,600
2010-12-21$5.16$7.4925,900
2010-12-20$5.09$7.391,400
2010-12-17$5.07$7.3622,900
2010-12-16$5.19$7.5412,500
2010-12-15$4.60$6.6827,400
2010-12-14$4.89$7.1024,700
2010-12-13$5.08$7.381,900
2010-12-10$4.99$7.2517,600
2010-12-09$5.02$7.297,800
2010-12-08$5.14$7.466,900
2010-12-07$5.07$7.366,700
2010-12-06$5.00$7.269,100
2010-12-03$5.01$7.2720,600
2010-12-02$5.04$7.323,800
2010-12-01$5.18$7.524,000
2010-11-30$5.15$7.4827,000
2010-11-29$5.31$7.7110,100
2010-11-26$5.26$7.644,200
2010-11-24$5.29$7.684,400
2010-11-23$5.39$7.837,000
2010-11-22$5.25$7.62800
2010-11-19$5.11$7.4225,900
2010-11-18$5.32$7.736,800
2010-11-17$5.35$7.776,500
2010-11-16$5.28$7.677,200
2010-11-15$5.43$7.8831,100
2010-11-12$5.42$7.877,200
2010-11-11$5.53$8.03900
2010-11-10$5.47$7.944,800
2010-11-09$5.50$7.9912,400
2010-11-08$5.49$7.971,200
2010-11-05$5.66$8.2212,900
2010-11-04$5.55$8.061,700
2010-11-03$5.39$7.830
2010-11-02$5.39$7.833,500
2010-11-01$5.56$8.070
2010-10-29$5.56$8.07800
2010-10-28$5.38$7.810
2010-10-27$5.38$7.81600
2010-10-26$5.36$7.783,100
2010-10-25$5.40$7.840
2010-10-22$5.40$7.84800
2010-10-21$5.48$7.96900
2010-10-20$5.33$7.742,600
2010-10-19$5.30$7.701,600
2010-10-18$5.35$7.772,100
2010-10-15$5.38$7.810
2010-10-14$5.38$7.81300
2010-10-13$5.45$7.91400
2010-10-12$5.50$7.992,000
2010-10-11$5.44$7.90400
2010-10-08$5.40$7.840
2010-10-07$5.40$7.841,500
2010-10-06$5.38$7.81600
2010-10-05$5.60$8.137,500
2010-10-04$5.26$7.640
2010-10-01$5.26$7.64200
2010-09-30$5.43$7.88100
2010-09-29$5.25$7.623,200
2010-09-28$5.35$7.770
2010-09-27$5.35$7.68900
2010-09-24$5.25$7.543,700
2010-09-23$5.35$7.684,700
2010-09-22$5.48$7.870
2010-09-21$5.48$7.874,700
2010-09-20$5.40$7.750
2010-09-17$5.40$7.75500
2010-09-16$5.45$7.834,900
2010-09-15$5.65$8.11900
2010-09-14$5.65$8.110
2010-09-13$5.65$8.11100
2010-09-10$5.53$7.940
2010-09-09$5.53$7.941,700
2010-09-08$5.50$7.90700
2010-09-07$5.63$8.0814,200
2010-09-03$5.69$8.17500
2010-09-02$5.50$7.90400
2010-09-01$5.52$7.93700
2010-08-31$5.63$8.081,200
2010-08-30$5.66$8.131,100
2010-08-27$5.71$8.20100
2010-08-26$5.59$8.030
2010-08-25$5.59$8.032,400
2010-08-24$5.50$7.901,300
2010-08-23$5.55$7.971,500
2010-08-20$5.50$7.904,500
2010-08-19$5.75$8.261,300
2010-08-18$5.55$7.9719,000
2010-08-17$5.80$8.337,400
2010-08-16$5.50$7.905,500
2010-08-13$5.55$7.978,400
2010-08-12$5.50$7.902,400
2010-08-11$5.21$7.486,100
2010-08-10$5.16$7.411,200
2010-08-09$5.21$7.48700
2010-08-06$5.31$7.62100
2010-08-05$5.45$7.83500
2010-08-04$5.29$7.604,500
2010-08-03$5.38$7.724,600
2010-08-02$5.48$7.875,400
2010-07-30$5.35$7.680
2010-07-29$5.35$7.681,600
2010-07-28$5.48$7.8711,100
2010-07-27$5.15$7.394,500
2010-07-26$5.17$7.421,500
2010-07-23$5.19$7.457,000
2010-07-22$5.21$7.482,900
2010-07-21$5.26$7.55800
2010-07-20$5.37$7.71700
2010-07-19$5.40$7.751,000
2010-07-16$5.20$7.475,100
2010-07-15$5.21$7.483,600
2010-07-14$5.24$7.52100
2010-07-13$5.46$7.840
2010-07-12$5.46$7.841,000
2010-07-09$5.25$7.5412,100
2010-07-08$5.25$7.548,100
2010-07-07$5.22$7.491,100
2010-07-06$5.20$7.47300
2010-07-02$5.50$7.901,800
2010-07-01$5.40$7.753,700
2010-06-30$5.34$7.671,400
2010-06-29$5.26$7.553,700
2010-06-28$5.30$7.612,100
2010-06-25$5.35$7.602,100
2010-06-24$5.40$7.671,000
2010-06-23$5.35$7.609,700
2010-06-22$5.35$7.603,400
2010-06-21$5.40$7.671,000
2010-06-18$5.45$7.74200
2010-06-17$5.55$7.881,100
2010-06-16$5.47$7.771,000
2010-06-15$5.30$7.526,600
2010-06-14$5.59$7.941,300
2010-06-11$5.44$7.720
2010-06-10$5.44$7.7226,500
2010-06-09$5.57$7.913,300
2010-06-08$5.46$7.75300
2010-06-07$5.64$8.012,300
2010-06-04$5.62$7.982,900
2010-06-03$5.65$8.021,400
2010-06-02$5.63$7.99400
2010-06-01$5.49$7.79300
2010-05-28$5.61$7.96400
2010-05-27$5.61$7.965,900
2010-05-26$5.80$8.234,000
2010-05-25$5.55$7.884,600
2010-05-24$5.75$8.165,400
2010-05-21$5.70$8.098,500
2010-05-20$5.33$7.573,100
2010-05-19$5.51$7.824,400
2010-05-18$5.57$7.911,100
2010-05-17$5.58$7.922,900
2010-05-14$5.60$7.959,900
2010-05-13$5.60$7.956,300
2010-05-12$5.40$7.674,400
2010-05-11$5.36$7.615,100
2010-05-10$5.47$7.772,900
2010-05-07$5.04$7.1614,200
2010-05-06$5.14$7.3018,800
2010-05-05$5.70$8.09200
2010-05-04$5.60$7.951,700
2010-05-03$5.70$8.095,900
2010-04-30$5.62$7.982,200
2010-04-29$5.75$8.1623,400
2010-04-28$5.15$7.319,300
2010-04-27$5.48$7.78900
2010-04-26$5.52$7.842,200
2010-04-23$5.50$7.818,700
2010-04-22$5.51$7.821,900
2010-04-21$5.50$7.812,000
2010-04-20$5.70$8.092,000
2010-04-19$5.80$8.2310,400
2010-04-16$5.61$7.963,600
2010-04-15$5.56$7.894,700
2010-04-14$5.70$8.0911,900
2010-04-13$5.56$7.891,000
2010-04-12$5.50$7.819,000
2010-04-09$5.64$8.011,400
2010-04-08$5.78$8.217,100
2010-04-07$5.60$7.956,600
2010-04-06$5.70$8.097,300
2010-04-05$5.70$8.093,800
2010-04-01$5.50$7.812,200
2010-03-31$5.69$8.08600
2010-03-30$5.75$8.16900
2010-03-29$5.75$8.164,500
2010-03-26$5.86$8.232,900
2010-03-25$5.97$8.3912,100
2010-03-24$5.79$8.142,800
2010-03-23$5.85$8.221,400
2010-03-22$5.87$8.254,200
2010-03-19$5.60$7.872,100
2010-03-18$5.60$7.874,800
2010-03-17$5.60$7.875,200
2010-03-16$5.60$7.873,600
2010-03-15$5.60$7.874,600
2010-03-12$5.59$7.852,200
2010-03-11$5.61$7.8819,400
2010-03-10$5.88$8.264,700
2010-03-09$5.93$8.333,300
2010-03-08$5.90$8.297,600
2010-03-05$5.90$8.299,800
2010-03-04$5.73$8.052,400
2010-03-03$5.51$7.749,800
2010-03-02$5.51$7.745,700
2010-03-01$5.39$7.577,000
2010-02-26$5.55$7.8016,800
2010-02-25$5.40$7.5914,200
2010-02-24$5.50$7.7319,200
2010-02-23$4.85$6.8216,200
2010-02-22$4.85$6.8225,900
2010-02-19$4.55$6.398,200
2010-02-18$4.48$6.3011,700
2010-02-17$4.50$6.3226,700
2010-02-16$4.41$6.202,200
2010-02-12$4.27$6.00300
2010-02-11$4.25$5.97800
2010-02-10$4.41$6.201,500
2010-02-09$4.41$6.204,800
2010-02-08$4.31$6.063,300
2010-02-05$4.25$5.974,200
2010-02-04$4.29$6.037,400
2010-02-03$4.20$5.904,600
2010-02-02$4.18$5.875,600
2010-02-01$4.26$5.993,700
2010-01-29$4.15$5.835,500
2010-01-28$4.19$5.8913,200
2010-01-27$4.30$6.043,900
2010-01-26$4.26$5.9918,100
2010-01-25$4.22$5.9344,700
2010-01-22$4.39$6.1745,500
2010-01-21$4.25$5.9783,000
2010-01-20$3.89$5.47234,200
2010-01-19$3.90$5.4887,000
2010-01-15$3.90$5.4857,400
2010-01-14$4.00$5.6258,100
2010-01-13$4.00$5.6286,700
2010-01-12$4.10$5.76235,900
2010-01-11$4.19$5.89110,600
2010-01-08$5.51$7.740
2010-01-07$5.51$7.740
2010-01-06$5.51$7.740
2010-01-05$5.51$7.740
2010-01-04$5.51$7.740