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 — 2016

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2016-12-30$2.28$3.8961,100——
2016-12-29$2.31$3.9431,400——
2016-12-28$2.45$4.1819,600——
2016-12-27$2.31$3.943,500——
2016-12-23$2.35$4.005,300——
2016-12-22$2.35$4.005,600——
2016-12-21$2.37$4.042,100——
2016-12-20$2.37$4.0418,900——
2016-12-19$2.28$3.8922,800——
2016-12-16$2.31$3.946,700——
2016-12-15$2.31$3.943,300——
2016-12-14$2.29$3.9014,900——
2016-12-13$2.38$4.068,100——
2016-12-12$2.40$4.096,100——
2016-12-09$2.40$4.099,400——
2016-12-08$2.39$4.078,200——
2016-12-07$2.50$4.2623,500——
2016-12-06$2.56$4.368,300——
2016-12-05$2.50$4.2673,500——
2016-12-02$2.63$4.4848,400——
2016-12-01$2.52$4.291,300——
2016-11-30$2.53$4.319,600——
2016-11-29$2.35$4.002,500——
2016-11-28$2.35$4.008,300——
2016-11-25$2.38$4.061,600——
2016-11-23$2.32$3.955,400——
2016-11-22$2.32$3.954,300——
2016-11-21$2.33$3.975,800——
2016-11-18$2.38$4.0610,600——
2016-11-17$2.37$4.043,000——
2016-11-16$2.44$4.162,100——
2016-11-15$2.46$4.1929,900——
2016-11-14$2.46$4.196,400——
2016-11-11$2.40$4.098,000——
2016-11-10$2.34$3.9912,300——
2016-11-09$2.40$4.0932,200——
2016-11-08$2.58$4.407,800——
2016-11-07$2.65$4.529,600——
2016-11-04$2.68$4.572,100——
2016-11-03$2.67$4.557,600——
2016-11-02$2.67$4.558,900——
2016-11-01$2.62$4.4722,900——
2016-10-31$2.90$4.9422,700——
2016-10-28$3.15$5.377,100——
2016-10-27$3.14$5.3511,600——
2016-10-26$3.19$5.4422,200——
2016-10-25$3.05$5.2045,000——
2016-10-24$3.14$5.3535,900——
2016-10-21$2.87$4.8926,000——
2016-10-20$2.70$4.6023,800——
2016-10-19$2.59$4.4136,500——
2016-10-18$2.64$4.5026,300——
2016-10-17$2.50$4.26108,300——
2016-10-14$2.28$3.8915,000——
2016-10-13$2.13$3.631,600——
2016-10-12$2.09$3.561,300——
2016-10-11$2.10$3.581,400——
2016-10-10$2.11$3.600——
2016-10-07$2.11$3.600——
2016-10-06$2.11$3.601,100——
2016-10-05$2.10$3.583,200——
2016-10-04$2.15$3.66700——
2016-10-03$2.11$3.601,200——
2016-09-30$2.16$3.680——
2016-09-29$2.16$3.6820,900——
2016-09-28$2.13$3.638,500——
2016-09-27$2.17$3.702,600——
2016-09-26$2.06$3.51200——
2016-09-23$2.14$3.6511,100——
2016-09-22$2.14$3.6551,300——
2016-09-21$2.07$3.537,000——
2016-09-20$2.05$3.4926,100——
2016-09-19$2.04$3.484,300——
2016-09-16$2.01$3.4317,900——
2016-09-15$2.10$3.5810,000——
2016-09-14$2.09$3.568,300——
2016-09-13$2.14$3.6510,100——
2016-09-12$2.12$3.6128,500——
2016-09-09$2.05$3.491,100——
2016-09-08$2.09$3.5610,300——
2016-09-07$2.00$3.4111,900——
2016-09-06$2.07$3.536,800——
2016-09-02$2.01$3.433,000——
2016-09-01$2.01$3.4310,400——
2016-08-31$1.98$3.376,800——
2016-08-30$2.02$3.442,800——
2016-08-29$2.03$3.46200——
2016-08-26$2.01$3.431,600——
2016-08-25$2.03$3.464,600——
2016-08-24$2.00$3.412,700——
2016-08-23$2.02$3.448,000——
2016-08-22$1.99$3.3917,800——
2016-08-19$2.04$3.4872,700——
2016-08-18$2.17$3.706,600——
2016-08-17$2.10$3.581,500——
2016-08-16$2.10$3.5811,100——
2016-08-15$2.10$3.582,600——
2016-08-12$2.12$3.6129,800——
2016-08-11$2.17$3.70600——
2016-08-10$2.08$3.542,100——
2016-08-09$2.04$3.483,400——
2016-08-08$2.04$3.4821,800——
2016-08-05$2.01$3.433,200——
2016-08-04$2.19$3.7376,500——
2016-08-03$2.30$3.92135,100——
2016-08-02$2.22$3.781,500——
2016-08-01$2.22$3.78143,300——
2016-07-29$2.10$3.588,400——
2016-07-28$2.21$3.774,900——
2016-07-27$2.20$3.75106,900——
2016-07-26$2.09$3.563,700——
2016-07-25$2.03$3.4644,600——
2016-07-22$2.02$3.44145,800——
2016-07-21$2.03$3.46148,500——
2016-07-20$2.10$3.58700——
2016-07-19$2.09$3.566,500——
2016-07-18$2.02$3.449,700——
2016-07-15$1.98$3.3715,700——
2016-07-14$1.97$3.365,200——
2016-07-13$1.97$3.367,500——
2016-07-12$1.97$3.3612,500——
2016-07-11$2.03$3.4618,800——
2016-07-08$2.08$3.5439,800——
2016-07-07$2.03$3.46500——
2016-07-06$2.00$3.4123,200——
2016-07-05$1.97$3.367,100——
2016-07-01$2.03$3.4611,300——
2016-06-30$2.03$3.4610,700——
2016-06-29$2.02$3.449,000——
2016-06-28$1.99$3.395,900——
2016-06-27$1.99$3.390——
2016-06-24$1.99$3.398,800——
2016-06-23$2.05$3.493,000——
2016-06-22$2.04$3.484,200——
2016-06-21$2.05$3.4915,200——
2016-06-20$1.96$3.347,400——
2016-06-17$2.01$3.4312,800——
2016-06-16$2.00$3.41500——
2016-06-15$2.07$3.535,100——
2016-06-14$2.05$3.493,400——
2016-06-13$2.11$3.6011,600——
2016-06-10$1.98$3.374,800——
2016-06-09$2.09$3.5615,600——
2016-06-08$1.98$3.3747,800——
2016-06-07$2.04$3.486,300——
2016-06-06$2.05$3.4911,600——
2016-06-03$2.01$3.431,300——
2016-06-02$1.96$3.340——
2016-06-01$1.96$3.346,500——
2016-05-31$2.00$3.412,000——
2016-05-27$2.10$3.583,900——
2016-05-26$2.09$3.56500——
2016-05-25$2.03$3.461,500——
2016-05-24$2.06$3.5115,200——
2016-05-23$2.05$3.4918,600——
2016-05-20$2.09$3.560——
2016-05-19$2.09$3.561,100——
2016-05-18$2.15$3.669,500——
2016-05-17$2.11$3.606,800——
2016-05-16$2.18$3.728,100——
2016-05-13$2.09$3.563,700——
2016-05-12$2.18$3.722,400——
2016-05-11$2.18$3.725,800——
2016-05-10$2.19$3.730——
2016-05-09$2.19$3.732,000——
2016-05-06$2.13$3.632,600——
2016-05-05$2.13$3.634,000——
2016-05-04$2.07$3.533,400——
2016-05-03$2.10$3.589,600——
2016-05-02$2.20$3.752,700——
2016-04-29$2.20$3.759,200——
2016-04-28$2.21$3.774,200——
2016-04-27$2.17$3.70600——
2016-04-26$2.15$3.661,100——
2016-04-25$2.09$3.566,400——
2016-04-22$2.06$3.512,200——
2016-04-21$2.15$3.660——
2016-04-20$2.15$3.661,400——
2016-04-19$2.09$3.56900——
2016-04-18$2.14$3.659,300——
2016-04-15$2.18$3.72100——
2016-04-14$2.18$3.725,700——
2016-04-13$2.19$3.730——
2016-04-12$2.19$3.731,300——
2016-04-11$2.17$3.701,300——
2016-04-08$2.20$3.750——
2016-04-07$2.20$3.753,400——
2016-04-06$2.15$3.660——
2016-04-05$2.15$3.66800——
2016-04-04$2.19$3.73300——
2016-04-01$2.15$3.66500——
2016-03-31$2.13$3.631,000——
2016-03-30$2.10$3.580——
2016-03-29$2.10$3.583,400——
2016-03-28$2.10$3.581,800——
2016-03-24$2.21$3.771,300——
2016-03-23$2.21$3.771,700——
2016-03-22$2.20$3.752,100——
2016-03-21$2.23$3.801,300——
2016-03-18$2.21$3.771,800——
2016-03-17$2.25$3.836,400——
2016-03-16$2.29$3.904,000——
2016-03-15$2.16$3.684,000——
2016-03-14$2.21$3.775,000——
2016-03-11$2.22$3.782,700——
2016-03-10$2.21$3.77700——
2016-03-09$2.15$3.662,100——
2016-03-08$2.22$3.782,800——
2016-03-07$2.21$3.774,200——
2016-03-04$2.22$3.782,700——
2016-03-03$2.18$3.725,200——
2016-03-02$2.15$3.661,800——
2016-03-01$2.18$3.721,500——
2016-02-29$2.15$3.668,400——
2016-02-26$2.10$3.583,100——
2016-02-25$2.14$3.652,500——
2016-02-24$2.15$3.665,200——
2016-02-23$2.14$3.656,200——
2016-02-22$2.10$3.5815,000——
2016-02-19$2.20$3.75600——
2016-02-18$2.15$3.662,100——
2016-02-17$2.10$3.5814,600——
2016-02-16$2.00$3.418,100——
2016-02-12$1.92$3.2725,000——
2016-02-11$2.04$3.4818,800——
2016-02-10$1.86$3.171,600——
2016-02-09$1.83$3.123,100——
2016-02-08$1.96$3.345,000——
2016-02-05$2.04$3.487,700——
2016-02-04$1.92$3.277,700——
2016-02-03$2.03$3.466,700——
2016-02-02$2.00$3.418,200——
2016-02-01$2.11$3.6010,200——
2016-01-29$1.88$3.2012,400——
2016-01-28$1.63$2.784,100——
2016-01-27$1.77$3.027,300——
2016-01-26$1.78$3.034,500——
2016-01-25$1.62$2.763,200——
2016-01-22$1.65$2.814,400——
2016-01-21$1.70$2.900——
2016-01-20$1.70$2.9012,400——
2016-01-19$1.66$2.8312,600——
2016-01-15$1.77$3.025,500——
2016-01-14$1.77$3.02600——
2016-01-13$1.80$3.079,000——
2016-01-12$1.80$3.07900——
2016-01-11$1.81$3.0826,600——
2016-01-08$1.96$3.344,500——
2016-01-07$1.96$3.349,700——
2016-01-06$1.96$3.3419,200——
2016-01-05$2.01$3.438,200——
2016-01-04$1.98$3.371,900——