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.

View year

Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$4.14$7.0641,900
2025-12-30$4.20$7.1643,300
2025-12-29$4.31$7.3526,400
2025-12-26$4.49$7.6516,900
2025-12-24$4.46$7.606,200
2025-12-23$4.47$7.6226,000
2025-12-22$4.42$7.5348,200
2025-12-19$4.28$7.2972,000
2025-12-18$4.54$7.74146,800
2025-12-17$4.50$7.6740,200
2025-12-16$4.51$7.6914,900
2025-12-15$4.60$7.8432,700
2025-12-12$4.58$7.8116,000
2025-12-11$4.72$8.0412,600
2025-12-10$4.65$7.9221,900
2025-12-09$4.77$8.1324,800
2025-12-08$4.59$7.8283,700
2025-12-05$4.82$8.2119,100
2025-12-04$4.85$8.2718,300
2025-12-03$4.94$8.4221,700
2025-12-02$4.90$8.3519,800
2025-12-01$4.85$8.2711,300
2025-11-28$5.06$8.6225,000
2025-11-26$4.81$8.2028,400
2025-11-25$4.80$8.1823,100
2025-11-24$4.62$7.8724,400
2025-11-21$4.66$7.9456,500
2025-11-20$4.57$7.7914,700
2025-11-19$4.62$7.8712,800
2025-11-18$4.64$7.9112,600
2025-11-17$4.75$8.1017,400
2025-11-14$4.82$8.2111,000
2025-11-13$4.80$8.1821,500
2025-11-12$4.92$8.3822,800
2025-11-11$5.01$8.5433,600
2025-11-10$5.09$8.6771,600
2025-11-07$4.50$7.6734,300
2025-11-06$4.54$7.7425,000
2025-11-05$4.71$8.0326,600
2025-11-04$4.61$7.8652,000
2025-11-03$4.78$8.1518,400
2025-10-31$4.83$8.2341,500
2025-10-30$4.79$8.1629,900
2025-10-29$4.89$8.3326,700
2025-10-28$5.06$8.6226,900
2025-10-27$5.08$8.6654,600
2025-10-24$5.19$8.8533,100
2025-10-23$5.04$8.5929,600
2025-10-22$4.97$8.47153,800
2025-10-21$5.48$9.34122,000
2025-10-20$4.99$8.5027,000
2025-10-17$4.91$8.3787,700
2025-10-16$5.18$8.8331,200
2025-10-15$5.40$9.20241,500
2025-10-14$5.11$8.7121,400
2025-10-13$4.94$8.4230,700
2025-10-10$4.86$8.2840,100
2025-10-09$4.89$8.3355,100
2025-10-08$4.96$8.4532,000
2025-10-07$5.03$8.5730,500
2025-10-06$5.13$8.7432,900
2025-10-03$5.19$8.8540,500
2025-10-02$5.18$8.8342,900
2025-10-01$5.22$8.9029,600
2025-09-30$5.08$8.6629,100
2025-09-29$5.20$8.8629,600
2025-09-26$5.26$8.9629,200
2025-09-25$5.26$8.9620,800
2025-09-24$5.45$9.2926,600
2025-09-23$5.50$9.3733,200
2025-09-22$5.67$9.6632,700
2025-09-19$5.67$9.6630,900
2025-09-18$5.77$9.8322,400
2025-09-17$5.68$9.6831,100
2025-09-16$5.70$9.7132,800
2025-09-15$5.80$9.8875,900
2025-09-12$5.69$9.7031,700
2025-09-11$5.72$9.7551,300
2025-09-10$5.78$9.8581,800
2025-09-09$6.07$10.3451,500
2025-09-08$6.06$10.3341,500
2025-09-05$6.15$10.4823,500
2025-09-04$6.07$10.3425,200
2025-09-03$6.20$10.5740,300
2025-09-02$6.23$10.6240,500
2025-08-29$6.20$10.5732,800
2025-08-28$6.21$10.5859,500
2025-08-27$6.41$10.9247,000
2025-08-26$6.51$11.09154,300
2025-08-25$6.36$10.8490,500
2025-08-22$6.48$11.0460,100
2025-08-21$6.16$10.5033,500
2025-08-20$6.10$10.4084,100
2025-08-19$6.48$11.04378,400
2025-08-18$6.14$10.46149,000
2025-08-15$5.69$9.7066,400
2025-08-14$5.47$9.3235,100
2025-08-13$5.48$9.3440,600
2025-08-12$5.36$9.1323,700
2025-08-11$5.33$9.0837,700
2025-08-08$5.48$9.3428,400
2025-08-07$5.56$9.4836,600
2025-08-06$5.73$9.7726,300
2025-08-05$5.72$9.7568,600
2025-08-04$5.42$9.2431,100
2025-08-01$5.39$9.1948,600
2025-07-31$5.28$9.0038,700
2025-07-30$5.35$9.1294,200
2025-07-29$5.58$9.5194,800
2025-07-28$5.57$9.4970,300
2025-07-25$5.52$9.41101,300
2025-07-24$5.68$9.68233,400
2025-07-23$6.27$10.696,521,500
2025-07-22$5.71$9.7374,800
2025-07-21$5.38$9.17116,800
2025-07-18$5.35$9.1236,500
2025-07-17$5.32$9.0763,900
2025-07-16$5.27$8.9831,500
2025-07-15$5.06$8.6227,000
2025-07-14$5.11$8.7128,600
2025-07-11$5.25$8.9555,000
2025-07-10$5.48$9.3453,800
2025-07-09$5.36$9.1345,100
2025-07-08$5.28$9.0033,400
2025-07-07$5.28$9.0022,400
2025-07-03$5.23$8.9124,600
2025-07-02$5.25$8.9523,400
2025-07-01$5.06$8.6230,700
2025-06-30$5.10$8.6969,400
2025-06-27$4.97$8.4765,900
2025-06-26$4.99$8.5027,500
2025-06-25$5.05$8.6144,800
2025-06-24$4.96$8.4573,700
2025-06-23$5.00$8.5291,100
2025-06-20$5.14$8.76518,200
2025-06-18$4.88$8.3230,400
2025-06-17$4.80$8.1869,900
2025-06-16$4.90$8.3553,300
2025-06-13$4.70$8.01160,000
2025-06-12$4.87$8.30183,400
2025-06-11$5.54$9.44104,400
2025-06-10$5.79$9.8794,400
2025-06-09$6.04$10.2963,300
2025-06-06$5.65$9.6328,800
2025-06-05$5.72$9.7560,000
2025-06-04$5.96$10.1654,700
2025-06-03$5.81$9.9043,600
2025-06-02$5.74$9.7846,100
2025-05-30$5.82$9.9250,400
2025-05-29$6.08$10.3691,900
2025-05-28$6.20$10.57113,300
2025-05-27$6.32$10.77315,700
2025-05-23$6.00$10.23153,200
2025-05-22$5.83$9.94135,600
2025-05-21$5.89$10.04281,400
2025-05-20$6.11$10.41642,200
2025-05-19$5.29$9.0223,100
2025-05-16$5.40$9.2042,800
2025-05-15$5.04$8.5922,600
2025-05-14$5.30$9.0321,900
2025-05-13$5.37$9.1568,600
2025-05-12$5.38$9.1746,700
2025-05-09$4.92$8.3816,100
2025-05-08$4.75$8.1019,800
2025-05-07$4.68$7.9815,000
2025-05-06$4.53$7.7214,400
2025-05-05$4.74$8.0824,600
2025-05-02$4.88$8.3227,000
2025-05-01$4.80$8.1811,400
2025-04-30$4.74$8.0815,800
2025-04-29$4.93$8.4059,200
2025-04-28$4.50$7.6713,500
2025-04-25$4.63$7.8924,900
2025-04-24$4.60$7.8423,200
2025-04-23$4.52$7.7021,800
2025-04-22$4.49$7.6515,800
2025-04-21$4.30$7.3334,000
2025-04-17$4.60$7.8434,900
2025-04-16$4.27$7.2821,500
2025-04-15$4.51$7.6927,200
2025-04-14$4.48$7.6426,300
2025-04-11$4.46$7.6039,400
2025-04-10$4.29$7.3125,000
2025-04-09$4.47$7.6270,000
2025-04-08$4.09$6.9729,400
2025-04-07$4.27$7.2866,700
2025-04-04$4.33$7.3874,700
2025-04-03$4.33$7.3853,100
2025-04-02$4.73$8.0630,500
2025-04-01$4.78$8.1541,500
2025-03-31$4.72$8.0436,400
2025-03-28$4.85$8.2736,700
2025-03-27$4.87$8.30103,600
2025-03-26$5.62$9.5849,200
2025-03-25$5.80$9.8855,900
2025-03-24$5.82$9.9289,800
2025-03-21$5.19$8.8517,700
2025-03-20$5.07$8.6421,500
2025-03-19$5.17$8.8150,700
2025-03-18$4.92$8.3827,800
2025-03-17$5.28$9.0046,700
2025-03-14$5.00$8.5234,400
2025-03-13$4.68$7.9836,500
2025-03-12$4.88$8.3230,000
2025-03-11$5.10$8.6926,800
2025-03-10$5.13$8.7431,500
2025-03-07$5.30$9.0315,800
2025-03-06$5.27$8.9839,100
2025-03-05$5.31$9.0523,000
2025-03-04$5.21$8.8856,600
2025-03-03$5.14$8.7636,200
2025-02-28$5.53$9.4238,700
2025-02-27$5.45$9.2932,500
2025-02-26$5.80$9.8832,400
2025-02-25$5.73$9.7752,500
2025-02-24$5.78$9.8556,900
2025-02-21$5.99$10.2161,400
2025-02-20$6.18$10.5363,200
2025-02-19$6.18$10.5352,300
2025-02-18$6.42$10.9446,800
2025-02-14$6.56$11.1846,100
2025-02-13$6.49$11.0641,900
2025-02-12$6.40$10.9140,600
2025-02-11$6.49$11.06145,100
2025-02-10$6.94$11.83272,200
2025-02-07$6.04$10.2942,500
2025-02-06$6.20$10.5724,900
2025-02-05$6.26$10.6726,600
2025-02-04$6.33$10.7964,800
2025-02-03$6.02$10.2658,700
2025-01-31$5.98$10.1954,700
2025-01-30$6.17$10.5237,400
2025-01-29$6.12$10.4345,700
2025-01-28$6.16$10.5080,500
2025-01-27$6.26$10.67109,700
2025-01-24$6.67$11.3737,100
2025-01-23$6.77$11.5494,700
2025-01-22$6.60$11.2558,800
2025-01-21$6.68$11.3880,300
2025-01-17$6.62$11.28101,200
2025-01-16$6.79$11.5771,900
2025-01-15$6.63$11.30133,300
2025-01-14$6.69$11.40157,700
2025-01-13$7.04$12.00136,700
2025-01-10$7.33$12.4997,000
2025-01-08$7.51$12.8087,100
2025-01-07$7.85$13.38186,100
2025-01-06$7.67$13.07249,800
2025-01-03$7.56$12.8878,700
2025-01-02$7.42$12.65105,500