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 — 2011

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2011-12-30$5.00$7.666,400
2011-12-29$4.99$7.644,700
2011-12-28$5.05$7.732,100
2011-12-27$5.20$7.872,700
2011-12-23$5.28$7.992,900
2011-12-22$5.16$7.819,800
2011-12-21$5.00$7.574,000
2011-12-20$5.04$7.639,000
2011-12-19$5.04$7.635,600
2011-12-16$5.15$7.80400
2011-12-15$5.20$7.876,400
2011-12-14$5.20$7.874,500
2011-12-13$5.20$7.873,900
2011-12-12$5.15$7.804,000
2011-12-09$5.15$7.802,000
2011-12-08$5.11$7.73800
2011-12-07$5.11$7.73800
2011-12-06$5.20$7.872,700
2011-12-05$5.08$7.692,900
2011-12-02$5.20$7.871,100
2011-12-01$5.16$7.811,800
2011-11-30$5.13$7.76500
2011-11-29$5.24$7.937,000
2011-11-28$5.09$7.704,100
2011-11-25$5.25$7.951,100
2011-11-23$5.25$7.95600
2011-11-22$5.24$7.931,800
2011-11-21$5.15$7.80300
2011-11-18$5.24$7.933,600
2011-11-17$5.05$7.642,300
2011-11-16$5.14$7.781,200
2011-11-15$5.29$8.01700
2011-11-14$5.26$7.961,000
2011-11-11$5.19$7.862,300
2011-11-10$5.30$8.023,900
2011-11-09$5.27$7.98500
2011-11-08$5.21$7.891,700
2011-11-07$5.10$7.721,000
2011-11-04$5.03$7.612,600
2011-11-03$5.15$7.801,400
2011-11-02$5.20$7.871,900
2011-11-01$5.03$7.613,600
2011-10-31$5.11$7.732,300
2011-10-28$5.25$7.952,600
2011-10-27$5.25$7.955,700
2011-10-26$5.33$8.075,000
2011-10-25$5.46$8.264,400
2011-10-24$5.45$8.254,700
2011-10-21$5.45$8.25100
2011-10-20$5.50$8.321,700
2011-10-19$5.46$8.26600
2011-10-18$5.42$8.201,400
2011-10-17$5.47$8.287,500
2011-10-14$5.52$8.36500
2011-10-13$5.55$8.401,000
2011-10-12$5.66$8.57600
2011-10-11$5.40$8.1722,200
2011-10-10$5.73$8.671,900
2011-10-07$5.50$8.322,700
2011-10-06$5.51$8.342,100
2011-10-05$5.56$8.421,400
2011-10-04$5.72$8.66700
2011-10-03$5.89$8.920
2011-09-30$5.89$8.92900
2011-09-29$5.80$8.78800
2011-09-28$5.73$8.67600
2011-09-27$5.75$8.613,900
2011-09-26$5.85$8.761,600
2011-09-23$5.82$8.720
2011-09-22$5.82$8.721,200
2011-09-21$6.02$9.02400
2011-09-20$6.15$9.21200
2011-09-19$6.19$9.271,400
2011-09-16$6.04$9.055,700
2011-09-15$6.02$9.021,100
2011-09-14$6.18$9.265,400
2011-09-13$6.00$8.995,700
2011-09-12$5.95$8.912,300
2011-09-09$6.02$9.02300
2011-09-08$6.02$9.020
2011-09-07$6.02$9.02500
2011-09-06$5.90$8.844,100
2011-09-02$5.85$8.76500
2011-09-01$5.82$8.7226,000
2011-08-31$6.53$9.7811,100
2011-08-30$6.25$9.364,100
2011-08-29$6.13$9.18900
2011-08-26$6.25$9.364,100
2011-08-25$5.97$8.942,500
2011-08-24$6.25$9.36800
2011-08-23$5.95$8.91700
2011-08-22$6.14$9.20600
2011-08-19$6.25$9.363,800
2011-08-18$6.75$10.1120,700
2011-08-17$5.84$8.75400
2011-08-16$5.80$8.692,900
2011-08-15$5.83$8.731,500
2011-08-12$5.85$8.76700
2011-08-11$5.64$8.450
2011-08-10$5.64$8.453,600
2011-08-09$5.75$8.618,900
2011-08-08$5.45$8.1612,200
2011-08-05$5.99$8.97600
2011-08-04$5.74$8.6021,700
2011-08-03$6.09$9.122,100
2011-08-02$6.01$9.006,100
2011-08-01$6.00$8.992,500
2011-07-29$6.20$9.297,200
2011-07-28$6.01$9.001,100
2011-07-27$6.00$8.995,400
2011-07-26$6.08$9.111,300
2011-07-25$5.90$8.84200
2011-07-22$6.00$8.991,100
2011-07-21$6.00$8.996,500
2011-07-20$5.85$8.764,000
2011-07-19$5.85$8.761,100
2011-07-18$5.83$8.735,800
2011-07-15$6.03$9.031,300
2011-07-14$6.10$9.142,900
2011-07-13$6.28$9.411,600
2011-07-12$6.30$9.44200
2011-07-11$6.05$9.062,000
2011-07-08$6.28$9.412,100
2011-07-07$6.10$9.141,000
2011-07-06$6.20$9.291,700
2011-07-05$6.22$9.321,700
2011-07-01$6.30$9.442,200
2011-06-30$6.20$9.291,700
2011-06-29$6.17$9.248,500
2011-06-28$6.04$9.053,000
2011-06-27$5.96$8.842,900
2011-06-24$5.98$8.877,700
2011-06-23$6.17$9.152,900
2011-06-22$6.32$9.37800
2011-06-21$6.69$9.921,800
2011-06-20$6.50$9.642,100
2011-06-17$6.15$9.123,100
2011-06-16$6.00$8.904,700
2011-06-15$6.08$9.0210,600
2011-06-14$5.91$8.767,300
2011-06-13$6.24$9.255,900
2011-06-10$6.30$9.346,600
2011-06-09$6.10$9.045,200
2011-06-08$6.08$9.021,400
2011-06-07$6.04$8.96900
2011-06-06$6.00$8.9017,500
2011-06-03$6.10$9.0421,000
2011-06-02$6.10$9.048,500
2011-06-01$5.77$8.562,700
2011-05-31$5.49$8.148,200
2011-05-27$5.79$8.599,700
2011-05-26$5.67$8.412,300
2011-05-25$5.57$8.264,500
2011-05-24$5.58$8.2712,100
2011-05-23$5.62$8.334,100
2011-05-20$5.73$8.502,800
2011-05-19$5.84$8.661,100
2011-05-18$5.84$8.661,900
2011-05-17$5.96$8.842,300
2011-05-16$6.20$9.196,200
2011-05-13$6.09$9.032,600
2011-05-12$6.20$9.193,100
2011-05-11$6.25$9.27800
2011-05-10$6.25$9.27200
2011-05-09$6.25$9.270
2011-05-06$6.25$9.275,500
2011-05-05$6.25$9.27400
2011-05-04$6.25$9.271,200
2011-05-03$6.25$9.273,800
2011-05-02$6.49$9.626,500
2011-04-29$6.58$9.761,600
2011-04-28$6.52$9.67700
2011-04-27$6.50$9.642,400
2011-04-26$6.25$9.271,700
2011-04-25$6.57$9.7413,500
2011-04-21$6.70$9.935,100
2011-04-20$6.87$10.190
2011-04-19$6.87$10.191,200
2011-04-18$6.99$10.363,200
2011-04-15$6.79$10.071,100
2011-04-14$6.82$10.113,200
2011-04-13$6.70$9.931,900
2011-04-12$6.60$9.798,200
2011-04-11$7.15$10.602,900
2011-04-08$7.26$10.762,400
2011-04-07$7.16$10.62700
2011-04-06$7.32$10.85200
2011-04-05$7.25$10.752,100
2011-04-04$7.49$11.11900
2011-04-01$7.51$11.14200
2011-03-31$7.41$10.99500
2011-03-30$7.55$11.1910,400
2011-03-29$7.21$10.692,400
2011-03-28$7.25$10.662,600
2011-03-25$7.34$10.794,400
2011-03-24$7.19$10.577,400
2011-03-23$7.40$10.886,300
2011-03-22$7.40$10.881,100
2011-03-21$7.44$10.947,600
2011-03-18$7.25$10.662,200
2011-03-17$7.14$10.506,000
2011-03-16$7.15$10.517,000
2011-03-15$7.31$10.752,300
2011-03-14$7.35$10.816,100
2011-03-11$7.25$10.668,000
2011-03-10$7.27$10.691,600
2011-03-09$7.38$10.854,300
2011-03-08$7.50$11.036,700
2011-03-07$7.48$11.002,200
2011-03-04$7.25$10.667,200
2011-03-03$7.30$10.7310,600
2011-03-02$7.00$10.298,300
2011-03-01$7.03$10.341,600
2011-02-28$6.92$10.184,300
2011-02-25$7.20$10.5911,500
2011-02-24$6.65$9.78300
2011-02-23$6.80$10.008,900
2011-02-22$6.90$10.1510,200
2011-02-18$7.10$10.4423,600
2011-02-17$6.80$10.002,900
2011-02-16$6.95$10.225,600
2011-02-15$7.00$10.293,900
2011-02-14$7.00$10.2927,300
2011-02-11$6.65$9.784,400
2011-02-10$6.68$9.8225,500
2011-02-09$6.50$9.5637,100
2011-02-08$6.07$8.9327,400
2011-02-07$6.05$8.9010,100
2011-02-04$6.00$8.821,100
2011-02-03$5.94$8.73700
2011-02-02$5.99$8.812,600
2011-02-01$5.95$8.756,000
2011-01-31$5.92$8.716,000
2011-01-28$5.86$8.62700
2011-01-27$5.76$8.47200
2011-01-26$5.94$8.731,900
2011-01-25$5.91$8.692,500
2011-01-24$5.95$8.754,500
2011-01-21$5.95$8.7551,700
2011-01-20$5.45$8.013,200
2011-01-19$5.64$8.293,900
2011-01-18$5.61$8.252,000
2011-01-14$5.59$8.2214,600
2011-01-13$5.50$8.092,700
2011-01-12$5.50$8.093,800
2011-01-11$5.43$7.982,600
2011-01-10$5.35$7.871,200
2011-01-07$5.42$7.972,300
2011-01-06$5.32$7.824,800
2011-01-05$5.25$7.721,000
2011-01-04$5.41$7.964,000
2011-01-03$5.30$7.799,200