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 — 1998

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1998-12-31$2.75$2.750——
1998-12-30$2.75$2.755,200——
1998-12-29$2.75$2.75800——
1998-12-28$2.75$2.7518,800——
1998-12-24$2.75$2.750——
1998-12-23$2.75$2.755,600——
1998-12-22$2.75$2.753,200——
1998-12-21$2.75$2.752,400——
1998-12-18$2.75$2.752,000——
1998-12-17$2.81$2.810——
1998-12-16$2.81$2.8110,000——
1998-12-15$2.75$2.752,000——
1998-12-14$2.75$2.750——
1998-12-11$2.75$2.754,000——
1998-12-10$2.75$2.75400——
1998-12-09$2.75$2.752,800——
1998-12-08$2.75$2.750——
1998-12-07$2.75$2.759,200——
1998-12-04$2.75$2.75400——
1998-12-03$2.75$2.750——
1998-12-02$2.75$2.750——
1998-12-01$2.75$2.752,000——
1998-11-30$2.75$2.751,200——
1998-11-27$2.81$2.818,000——
1998-11-25$2.84$2.842,000——
1998-11-24$2.84$2.84400——
1998-11-23$2.88$2.8715,200——
1998-11-20$2.91$2.9118,000——
1998-11-19$2.84$2.8411,600——
1998-11-18$2.72$2.722,800——
1998-11-17$2.81$2.812,000——
1998-11-16$2.81$2.810——
1998-11-13$2.81$2.814,400——
1998-11-12$2.66$2.661,200——
1998-11-11$2.63$2.624,800——
1998-11-10$2.63$2.62800——
1998-11-09$2.72$2.7211,200——
1998-11-06$2.69$2.6915,200——
1998-11-05$2.66$2.66800——
1998-11-04$2.63$2.622,000——
1998-11-03$2.81$2.811,200——
1998-11-02$2.73$2.730——
1998-10-30$2.73$2.730——
1998-10-29$2.73$2.730——
1998-10-28$2.73$2.7311,600——
1998-10-27$2.66$2.664,800——
1998-10-26$2.63$2.62800——
1998-10-23$2.73$2.735,200——
1998-10-22$2.73$2.734,000——
1998-10-21$2.59$2.59800——
1998-10-20$2.63$2.620——
1998-10-19$2.63$2.623,600——
1998-10-16$2.41$2.418,000——
1998-10-15$2.75$2.750——
1998-10-14$2.75$2.750——
1998-10-13$2.75$2.751,600——
1998-10-12$2.69$2.6922,000——
1998-10-09$2.31$2.31800——
1998-10-08$2.56$2.560——
1998-10-07$2.56$2.564,400——
1998-10-06$2.56$2.561,200——
1998-10-05$2.56$2.564,800——
1998-10-02$2.63$2.620——
1998-10-01$2.63$2.620——
1998-09-30$2.63$2.620——
1998-09-29$2.63$2.620——
1998-09-28$2.63$2.6219,200——
1998-09-25$2.72$2.722,000——
1998-09-24$2.59$2.594,000——
1998-09-23$2.72$2.724,000——
1998-09-22$2.59$2.593,200——
1998-09-21$2.75$2.753,200——
1998-09-18$2.63$2.623,600——
1998-09-17$2.63$2.62800——
1998-09-16$2.61$2.614,000——
1998-09-15$2.75$2.758,400——
1998-09-14$2.63$2.624,000——
1998-09-11$2.72$2.7212,400——
1998-09-10$2.72$2.7214,400——
1998-09-09$2.56$2.563,600——
1998-09-08$2.50$2.503,200——
1998-09-04$2.53$2.5326,000——
1998-09-03$2.50$2.508,800——
1998-09-02$2.50$2.504,000——
1998-09-01$2.69$2.6920,800——
1998-08-31$2.75$2.7510,000——
1998-08-28$2.81$2.814,400——
1998-08-27$2.84$2.847,200——
1998-08-26$2.94$2.940——
1998-08-25$2.94$2.9450,000——
1998-08-24$2.88$2.87800——
1998-08-21$2.94$2.940——
1998-08-20$2.94$2.9427,600——
1998-08-19$2.94$2.940——
1998-08-18$2.94$2.9428,000——
1998-08-17$2.88$2.872,400——
1998-08-14$3.00$3.00800——
1998-08-13$2.94$2.944,000——
1998-08-12$2.84$2.8411,200——
1998-08-11$2.84$2.843,200——
1998-08-10$2.78$2.780——
1998-08-07$2.78$2.788,000——
1998-08-06$3.03$3.031,600——
1998-08-05$2.87$2.87400——
1998-08-04$3.03$3.031,600——
1998-08-03$2.94$2.943,200——
1998-07-31$2.89$2.8934,400——
1998-07-30$3.13$3.126,000——
1998-07-29$3.05$3.05110,400——
1998-07-28$3.22$3.223,600——
1998-07-27$3.22$3.2216,400——
1998-07-24$3.22$3.22151,600——
1998-07-23$3.16$3.16510,800——
1998-07-22$2.69$2.690——
1998-07-21$2.69$2.698,000——
1998-07-20$2.81$2.814,400——
1998-07-17$2.78$2.785,200——
1998-07-16$2.81$2.812,000——
1998-07-15$2.72$2.720——
1998-07-14$2.72$2.724,000——
1998-07-13$2.88$2.870——
1998-07-10$2.88$2.871,600——
1998-07-09$2.88$2.8716,800——
1998-07-08$2.94$2.9411,600——
1998-07-07$2.75$2.756,400——
1998-07-06$2.94$2.9419,600——
1998-07-02$2.94$2.94132,800——
1998-07-01$2.55$2.556,400——
1998-06-30$2.53$2.534,400——
1998-06-29$2.56$2.5626,400——
1998-06-26$2.50$2.5015,200——
1998-06-25$2.50$2.502,000——
1998-06-24$2.52$2.526,400——
1998-06-23$2.56$2.562,800——
1998-06-22$2.56$2.5634,400——
1998-06-19$2.47$2.47800——
1998-06-18$2.50$2.5062,400——
1998-06-17$2.41$2.410——
1998-06-16$2.41$2.4111,200——
1998-06-15$2.44$2.4418,800——
1998-06-12$2.38$2.373,200——
1998-06-11$2.44$2.4447,200——
1998-06-10$2.38$2.370——
1998-06-09$2.38$2.3752,800——
1998-06-08$2.38$2.3716,800——
1998-06-05$2.44$2.4410,400——
1998-06-04$2.53$2.531,200——
1998-06-03$2.44$2.444,400——
1998-06-02$2.44$2.445,200——
1998-06-01$2.44$2.442,400——
1998-05-29$2.47$2.472,800——
1998-05-28$2.50$2.5017,600——
1998-05-27$2.53$2.5329,600——
1998-05-26$2.53$2.536,000——
1998-05-22$2.56$2.5621,200——
1998-05-21$2.53$2.53800——
1998-05-20$2.53$2.531,200——
1998-05-19$2.53$2.532,400——
1998-05-18$2.53$2.530——
1998-05-15$2.53$2.531,200——
1998-05-14$2.56$2.560——
1998-05-13$2.56$2.56400——
1998-05-12$2.53$2.5313,200——
1998-05-11$2.56$2.5660,000——
1998-05-08$2.53$2.534,800——
1998-05-07$2.56$2.5665,200——
1998-05-06$2.63$2.621,200——
1998-05-05$2.63$2.626,400——
1998-05-04$2.56$2.568,000——
1998-05-01$2.56$2.560——
1998-04-30$2.56$2.566,400——
1998-04-29$2.56$2.5642,800——
1998-04-28$2.69$2.6924,400——
1998-04-27$2.75$2.752,000——
1998-04-24$2.72$2.7240,800——
1998-04-23$2.69$2.697,200——
1998-04-22$2.69$2.695,200——
1998-04-21$2.69$2.6927,600——
1998-04-20$2.69$2.6920,000——
1998-04-17$2.73$2.730——
1998-04-16$2.73$2.7330,000——
1998-04-15$2.69$2.6912,400——
1998-04-14$2.69$2.6914,400——
1998-04-13$2.69$2.696,800——
1998-04-09$2.69$2.6926,400——
1998-04-08$2.75$2.7531,600——
1998-04-07$2.72$2.72800——
1998-04-06$2.69$2.694,800——
1998-04-03$2.69$2.698,000——
1998-04-02$2.75$2.7512,000——
1998-04-01$2.69$2.694,800——
1998-03-31$2.69$2.691,200——
1998-03-30$2.69$2.696,400——
1998-03-27$2.72$2.7252,000——
1998-03-26$2.69$2.691,600——
1998-03-25$2.69$2.696,000——
1998-03-24$2.81$2.812,400——
1998-03-23$2.69$2.6920,400——
1998-03-20$2.69$2.693,600——
1998-03-19$2.69$2.69400——
1998-03-18$2.69$2.699,200——
1998-03-17$2.69$2.6913,600——
1998-03-16$2.69$2.6944,400——
1998-03-13$2.69$2.694,800——
1998-03-12$2.69$2.6984,800——
1998-03-11$2.69$2.6960,000——
1998-03-10$2.69$2.6921,600——
1998-03-09$2.70$2.704,000——
1998-03-06$2.69$2.69400——
1998-03-05$2.69$2.6912,800——
1998-03-04$2.75$2.755,600——
1998-03-03$2.69$2.691,600——
1998-03-02$2.69$2.692,400——
1998-02-27$2.69$2.693,600——
1998-02-26$2.69$2.693,600——
1998-02-25$2.69$2.6922,800——
1998-02-24$2.69$2.6915,600——
1998-02-23$2.69$2.695,200——
1998-02-20$2.69$2.69400——
1998-02-19$2.81$2.8121,200——
1998-02-18$2.81$2.815,200——
1998-02-17$2.69$2.699,200——
1998-02-13$2.81$2.812,400——
1998-02-12$2.69$2.69168,400——
1998-02-11$2.88$2.870——
1998-02-10$2.88$2.870——
1998-02-09$2.88$2.872,800——
1998-02-06$2.69$2.69800——
1998-02-05$2.69$2.693,600——
1998-02-04$2.69$2.694,000——
1998-02-03$2.69$2.694,400——
1998-02-02$2.69$2.69400——
1998-01-30$2.69$2.690——
1998-01-29$2.69$2.69800——
1998-01-28$2.69$2.696,400——
1998-01-27$2.69$2.694,400——
1998-01-26$2.69$2.69341,600——
1998-01-23$2.75$2.75404,800——
1998-01-22$2.75$2.75226,000——
1998-01-21$2.56$2.56314,800——
1998-01-20$2.69$2.6957,200——
1998-01-16$2.56$2.5618,400——
1998-01-15$2.66$2.66112,000——
1998-01-14$3.00$3.000——
1998-01-13$3.00$3.0026,400——
1998-01-12$3.00$3.0011,200——
1998-01-09$3.13$3.1222,400——
1998-01-08$2.88$2.878,400——
1998-01-07$2.88$2.8715,200——
1998-01-06$2.97$2.9724,000——
1998-01-05$2.94$2.942,000——
1998-01-02$3.00$3.00800——