13 years of revenue, profit, cash flow and balance-sheet history through FY2025,
from SEC filings — with a computed, factual read of the trend.
Updated Overview →
Growth & profitability
Revenue has declined 7.2% per year over the past 5 years.
Operating margin has contracted, at -13.8% in the latest year.
Financial health
The company is unprofitable; at its current free-cash-flow burn it has roughly 4.0 years of cash runway.
Revenue & net income
RevenueNet income
Margins (gross / operating / net)
GrossOperatingNet
Free cash flow (CFO − capex)
Free cash flow
Cash vs total debt
CashTotal debt
Cash flow: operating / investing / financing
OperatingInvestingFinancing
Key annual figures
FY
Revenue
Net income
Gross M
Op M
FCF
Total debt
Cash
2025
$13M
-$874831
37.8%
-13.8%
-$705625
—
$3M
2024
$12M
-$950911
34.1%
-15.3%
-$652291
—
$3M
2023
$13M
$8M
34.0%
-190.0%
$11M
—
$3M
2022
$18M
$1M
37.9%
5.1%
-$1M
—
$9M
2021
$20M
$493594
34.4%
-2.0%
-$251415
—
$7M
2020
$18M
-$465597
30.9%
-2.6%
$1M
—
$4M
2019
$22M
$305989
31.2%
1.3%
$1M
—
$2M
2018
$24M
-$3M
27.9%
-1.5%
$780469
—
$1M
2017
—
-$963636
—
—
—
—
$432283
2016
—
$1M
—
—
—
—
$735393
2015
—
$482613
—
—
—
—
$1M
2014
—
-$6M
—
—
—
—
$2M
2013
—
$5M
—
—
—
—
$859636
Revenue & net income
RevenueNet income
Margins (gross / operating / net)
GrossOperatingNet
Free cash flow (CFO − capex, quarterly)
Free cash flow
Cash vs total debt
CashTotal debt
Cash flow: operating / investing / financing
OperatingInvestingFinancing
Key quarterly figures
Quarter
Revenue
Net income
Gross M
Op M
FCF
Total debt
Cash
Mar '26
$3M
-$546587
35.5%
-25.5%
-$586309
—
$2M
Dec '25
$3M
-$565407
29.0%
-35.5%
-$1M
—
$2M
Sep '25
$4M
$243729
40.0%
-1.1%
$761517
—
$3M
Jun '25
$3M
-$232696
36.0%
-14.2%
-$541847
—
$3M
Mar '25
$3M
-$316742
39.0%
-18.7%
$306194
—
$3M
Dec '24
$4M
$94142
39.5%
-4.0%
-$314333
—
$3M
Sep '24
$3M
-$419535
36.6%
-19.9%
-$155639
—
$3M
Jun '24
$3M
-$110369
40.4%
-11.0%
-$174773
—
$3M
Mar '24
$3M
-$313780
31.9%
-23.1%
$269261
—
$3M
Dec '23
$3M
-$269153
33.0%
-14.2%
$279186
—
$3M
Sep '23
$3M
-$257609
31.6%
-13.9%
-$1M
—
$2M
Jun '23
$3M
-$259840
26.7%
-19.9%
$88724
—
$3M
Mar '23
$3M
-$224480
38.6%
-13.2%
$60393
—
$3M
Dec '22
$3M
-$1M
34.6%
-41.1%
-$1M
—
$5M
Sep '22
$3M
$10M
35.5%
-668.4%
$12M
—
$21M
Jun '22
$4M
$385595
37.8%
8.9%
-$279765
—
$9M
Mar '22
$5M
$403204
42.4%
8.6%
-$315054
—
$9M
Dec '21
$4M
$578969
35.1%
7.3%
$529418
—
$8M
Sep '21
$4M
-$99359
36.2%
-4.6%
-$985287
—
$7M
Jun '21
$5M
$331943
38.0%
6.1%
$730608
—
$7M
Valuation over time
How the market has priced KOSS against its own fundamentals since 2023-03 —
each month-end's share price set against the most recent annual filing, so the multiple moves
as price runs ahead of (or behind) earnings. Split-adjusted.
The price-to-earnings ratio has fallen from 34.7× (Mar '23) to 5.1× (Jun '24).
The price-to-sales ratio has risen from 2.5× (Mar '23) to 3.0× (Jun '26).
Price / earnings (P/E)
P/E
Price / sales (P/S)
P/S
Frequently asked questions
Is KOSS growing its revenue and profit?
Over the past 5 years, KOSS CORP's revenue has declined 7.2% per year. These are computed facts, not advice.
How much debt does KOSS have?
As of FY2025, KOSS CORP reported — of total debt against $3M of cash.
What is KOSS's profit margin?
In FY2025, gross margin was 37.8%, operating margin -13.8%, and net margin -6.9%.
What is KOSS's P/E ratio?
As of Jun '26, KOSS CORP traded at a price-to-earnings ratio of about 5.1× (market cap ÷ latest annual net income). The valuation charts above show how its P/E, P/S have moved with the share price. These are computed facts, not advice.
Where does this data come from?
All figures are extracted from the company’s SEC EDGAR/XBRL filings — 10-K annual reports and 10-Q quarterly reports (use the Annual / Quarterly toggle). Quarterly figures are derived from the as-filed statements (year-to-date amounts are differenced into discrete quarters). Growth rates and ratios are computed by tradmap; nothing here is investment advice.
Source: SEC EDGAR / XBRL (10-K + 10-Q filings) · prices EOD (Databento), corporate-action-adjusted ·
growth rates, valuation multiples & ratios computed by tradmap. Valuation uses each month-end price
against the latest annual filing. Informational only — not investment advice.