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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$3.35$5.7114,900
2023-12-28$3.59$6.129,500
2023-12-27$3.60$6.1430,400
2023-12-26$3.69$6.2924,100
2023-12-22$3.74$6.378,600
2023-12-21$3.67$6.2520,500
2023-12-20$3.81$6.4912,100
2023-12-19$3.76$6.418,800
2023-12-18$3.79$6.4617,600
2023-12-15$3.73$6.3644,600
2023-12-14$3.79$6.4633,300
2023-12-13$3.52$6.0021,000
2023-12-12$3.44$5.865,500
2023-12-11$3.49$5.9518,100
2023-12-08$3.37$5.7425,200
2023-12-07$3.24$5.529,200
2023-12-06$3.25$5.5421,200
2023-12-05$3.20$5.4526,700
2023-12-04$3.30$5.6236,300
2023-12-01$3.05$5.209,600
2023-11-30$2.94$5.0110,700
2023-11-29$3.02$5.1598,900
2023-11-28$2.81$4.7930,800
2023-11-27$2.71$4.6216,800
2023-11-24$2.75$4.692,100
2023-11-22$2.75$4.695,500
2023-11-21$2.66$4.537,300
2023-11-20$2.82$4.8123,800
2023-11-17$2.82$4.817,000
2023-11-16$2.70$4.6076,200
2023-11-15$2.95$5.0334,100
2023-11-14$2.76$4.70283,800
2023-11-13$2.67$4.557,200
2023-11-10$2.72$4.642,900
2023-11-09$2.70$4.604,700
2023-11-08$2.87$4.896,500
2023-11-07$2.88$4.913,200
2023-11-06$2.86$4.874,300
2023-11-03$2.88$4.9110,600
2023-11-02$2.89$4.938,100
2023-11-01$2.82$4.816,900
2023-10-31$2.87$4.8916,300
2023-10-30$2.68$4.572,900
2023-10-27$2.72$4.6411,500
2023-10-26$2.66$4.539,600
2023-10-25$2.79$4.7513,000
2023-10-24$2.73$4.6523,200
2023-10-23$2.78$4.746,500
2023-10-20$2.87$4.893,500
2023-10-19$2.87$4.898,400
2023-10-18$3.00$5.1116,400
2023-10-17$3.00$5.1110,800
2023-10-16$2.90$4.9411,300
2023-10-13$2.82$4.816,100
2023-10-12$2.81$4.798,900
2023-10-11$2.83$4.8210,300
2023-10-10$2.83$4.825,600
2023-10-09$2.80$4.777,300
2023-10-06$2.90$4.9411,800
2023-10-05$2.91$4.969,900
2023-10-04$2.87$4.8910,700
2023-10-03$2.89$4.934,300
2023-10-02$2.94$5.016,900
2023-09-29$2.96$5.045,200
2023-09-28$3.01$5.1315,700
2023-09-27$3.01$5.1350,800
2023-09-26$2.97$5.065,000
2023-09-25$3.00$5.1119,100
2023-09-22$2.97$5.0615,500
2023-09-21$3.05$5.207,200
2023-09-20$3.12$5.327,600
2023-09-19$3.13$5.3322,900
2023-09-18$3.24$5.5215,400
2023-09-15$3.32$5.6622,000
2023-09-14$3.46$5.9016,000
2023-09-13$3.47$5.9118,400
2023-09-12$3.48$5.9311,300
2023-09-11$3.60$6.145,700
2023-09-08$3.65$6.2214,400
2023-09-07$3.69$6.2912,800
2023-09-06$3.60$6.1413,800
2023-09-05$3.71$6.325,500
2023-09-01$3.64$6.2010,400
2023-08-31$3.63$6.1917,400
2023-08-30$3.59$6.1238,000
2023-08-29$3.54$6.0314,900
2023-08-28$3.49$5.957,500
2023-08-25$3.48$5.9330,300
2023-08-24$3.50$5.9621,400
2023-08-23$3.52$6.0010,200
2023-08-22$3.55$6.0538,200
2023-08-21$3.65$6.2214,000
2023-08-18$3.72$6.346,300
2023-08-17$3.76$6.4120,300
2023-08-16$3.84$6.5410,500
2023-08-15$3.85$6.5612,800
2023-08-14$3.85$6.5626,500
2023-08-11$3.89$6.6321,200
2023-08-10$3.99$6.8021,300
2023-08-09$3.97$6.7752,600
2023-08-08$4.14$7.0637,400
2023-08-07$4.14$7.0666,600
2023-08-04$4.14$7.0613,800
2023-08-03$4.21$7.1725,600
2023-08-02$4.20$7.1650,500
2023-08-01$4.23$7.2146,500
2023-07-31$4.14$7.0684,100
2023-07-28$3.99$6.8076,300
2023-07-27$4.10$6.99172,000
2023-07-26$4.45$7.58236,000
2023-07-25$4.00$6.82168,900
2023-07-24$4.25$7.244,129,900
2023-07-21$3.61$6.15101,400
2023-07-20$3.67$6.2521,200
2023-07-19$3.84$6.5415,900
2023-07-18$3.78$6.4415,700
2023-07-17$3.70$6.3116,900
2023-07-14$3.66$6.2410,900
2023-07-13$3.69$6.2916,100
2023-07-12$3.65$6.2215,900
2023-07-11$3.66$6.2410,800
2023-07-10$3.58$6.109,900
2023-07-07$3.59$6.126,400
2023-07-06$3.51$5.9821,700
2023-07-05$3.64$6.2010,400
2023-07-03$3.71$6.322,900
2023-06-30$3.70$6.3118,100
2023-06-29$3.59$6.1224,800
2023-06-28$3.58$6.1023,900
2023-06-27$3.56$6.079,700
2023-06-26$3.56$6.0721,800
2023-06-23$3.56$6.0714,500
2023-06-22$3.70$6.3110,500
2023-06-21$3.72$6.3416,100
2023-06-20$3.75$6.3977,500
2023-06-16$3.73$6.3640,300
2023-06-15$3.78$6.4441,600
2023-06-14$3.78$6.4427,800
2023-06-13$3.91$6.6620,200
2023-06-12$3.85$6.5614,100
2023-06-09$3.75$6.3916,600
2023-06-08$3.83$6.5317,400
2023-06-07$3.94$6.7116,800
2023-06-06$3.82$6.5111,400
2023-06-05$3.80$6.4811,200
2023-06-02$3.92$6.6817,600
2023-06-01$3.87$6.6027,000
2023-05-31$3.85$6.5614,000
2023-05-30$3.93$6.7019,500
2023-05-26$3.97$6.7720,900
2023-05-25$4.00$6.8220,800
2023-05-24$4.08$6.9528,300
2023-05-23$4.14$7.0649,500
2023-05-22$3.99$6.8041,800
2023-05-19$3.95$6.7322,500
2023-05-18$3.80$6.4816,500
2023-05-17$3.78$6.4426,100
2023-05-16$3.76$6.4133,100
2023-05-15$3.79$6.4617,600
2023-05-12$3.80$6.489,900
2023-05-11$3.88$6.6116,900
2023-05-10$3.92$6.6819,800
2023-05-09$3.95$6.737,200
2023-05-08$3.97$6.7712,500
2023-05-05$3.93$6.7017,800
2023-05-04$3.97$6.778,800
2023-05-03$4.00$6.8212,300
2023-05-02$4.10$6.996,600
2023-05-01$4.18$7.124,900
2023-04-28$4.23$7.213,800
2023-04-27$4.11$7.009,600
2023-04-26$4.04$6.8916,000
2023-04-25$4.15$7.078,700
2023-04-24$4.29$7.3112,700
2023-04-21$4.47$7.629,300
2023-04-20$4.42$7.5312,800
2023-04-19$4.57$7.799,700
2023-04-18$4.67$7.965,700
2023-04-17$4.60$7.8415,600
2023-04-14$4.59$7.826,600
2023-04-13$4.50$7.6710,900
2023-04-12$4.72$8.0418,300
2023-04-11$4.67$7.9610,500
2023-04-10$4.59$7.8218,400
2023-04-06$4.50$7.673,200
2023-04-05$4.48$7.6413,300
2023-04-04$4.63$7.894,500
2023-04-03$4.64$7.9110,900
2023-03-31$4.62$7.8718,500
2023-03-30$4.58$7.8110,600
2023-03-29$4.57$7.798,500
2023-03-28$4.57$7.796,400
2023-03-27$4.59$7.8213,100
2023-03-24$4.59$7.8216,500
2023-03-23$4.57$7.7919,200
2023-03-22$4.72$8.0461,300
2023-03-21$4.41$7.5224,600
2023-03-20$4.38$7.4616,800
2023-03-17$4.44$7.5713,900
2023-03-16$4.57$7.7913,100
2023-03-15$4.65$7.9211,100
2023-03-14$4.71$8.038,400
2023-03-13$4.73$8.0613,500
2023-03-10$4.80$8.1819,700
2023-03-09$4.87$8.3012,500
2023-03-08$4.97$8.473,600
2023-03-07$5.00$8.525,300
2023-03-06$5.01$8.5415,100
2023-03-03$4.99$8.5014,000
2023-03-02$5.09$8.675,100
2023-03-01$4.97$8.4710,000
2023-02-28$5.02$8.5616,000
2023-02-27$4.98$8.4928,200
2023-02-24$4.93$8.409,500
2023-02-23$5.07$8.6418,300
2023-02-22$4.94$8.4258,300
2023-02-21$4.90$8.3518,800
2023-02-17$5.06$8.6225,800
2023-02-16$5.06$8.6222,100
2023-02-15$5.29$9.0268,600
2023-02-14$5.13$8.7417,600
2023-02-13$5.22$8.9022,100
2023-02-10$5.10$8.6933,500
2023-02-09$5.36$9.1337,300
2023-02-08$5.59$9.5328,500
2023-02-07$5.68$9.6892,000
2023-02-06$6.20$10.57406,500
2023-02-03$5.80$9.8825,300
2023-02-02$5.92$10.0945,700
2023-02-01$5.55$9.4651,700
2023-01-31$5.63$9.5945,000
2023-01-30$5.92$10.0918,700
2023-01-27$6.12$10.4337,900
2023-01-26$6.09$10.3823,200
2023-01-25$6.19$10.5516,900
2023-01-24$6.15$10.4829,900
2023-01-23$6.02$10.2621,100
2023-01-20$5.67$9.6639,200
2023-01-19$5.67$9.6638,000
2023-01-18$6.11$10.4125,300
2023-01-17$6.00$10.2347,100
2023-01-13$5.96$10.1641,600
2023-01-12$6.00$10.2340,100
2023-01-11$5.57$9.4923,800
2023-01-10$5.44$9.2711,900
2023-01-09$5.41$9.2221,100
2023-01-06$5.27$8.9811,800
2023-01-05$5.30$9.0316,200
2023-01-04$5.20$8.8610,300
2023-01-03$4.94$8.4220,500