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Atossa Therapeutics, Inc. (ATOS) stock

ATOSNasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 10, 2026Score 6/30
$1.96+0.02 (+1.03%)

Close on Nov 13, 2026Market cap $19.56MP/E –Yield –

Atossa Therapeutics statistics

64 measures from SEC filings and the closing price. Hover a name for the formula; the last column is the median of companies in the same industry group.

Important dates

Next earnings
Jan 8, 2027 (estimated, before the open)
Last ex-dividend date
No dividends
Fundamentals through
Sep 30, 2026
Share price as of
Nov 13, 2026

Valuation ratiosIndustry

Market Cap
$19.56M
$272.32M
Enterprise Value
-$1.01M
$146.23M
PB Ratio
0.90
2.00
P/TBV Ratio
0.90
2.22

Share statisticsIndustry

Shares Change (YoY)
5.22%
10.8%
Shares Change (QoQ)
0.00%
0.50%
Float
10M
49M
Shares Held by Insiders
2.17%
11.7%
Shares Held by Institutions
13.5%
56.4%

Short sellingIndustry

Short Interest
526,812
–
Short Interest Change
-22.9%
-0.80%
Short % of Float
5.40%
9.01%
Short % of Shares Outstanding
5.28%
6.30%
Days to Cover
7.59
5.15

Stock price statisticsIndustry

52-Week High
$14.85
–
52-Week Low
$1.70
–
20-Day Moving Average
$2.28
–
50-Day Moving Average
$2.33
–
200-Day Moving Average
$3.58
–
Average True Range (14)
$0.21
–
Price Change (1 Week)
-7.55%
-1.15%
Price Change (1 Month)
-26.0%
-4.87%
Price Change (3 Months)
-29.7%
-21.0%
Price Change (6 Months)
-59.6%
-20.6%
Price Change (YTD)
-77.9%
-23.6%
Price Change (1 Year)
-83.9%
-22.4%
Price Change (3 Years)
-79.6%
-29.5%
Price Change (5 Years)
-95.1%
-77.9%
Price Change (10 Years)
-99.4%
-65.4%
Average Volume (10 Days)
55,731
–
Average Volume (20 Days)
61,109
–
Average Volume (90 Days)
69,786
–
Relative Volume
0.80
0.70
Relative Strength Index (14)
37.4
43.4
Volatility (1 Year)
91.5%
80.1%
Beta (5 Years)
1.65
1.07

Returns on capitalIndustry

Return on Equity (ROE)
-96.9%
-49.9%
Return on Assets (ROA)
-82.1%
-40.6%
Return on Capital Employed (ROCE)
-165.1%
-37.9%

Financial positionIndustry

Current Ratio
5.35
3.30
Quick Ratio
4.37
2.39

EfficiencyIndustry

WACC
13.3%
10.2%

Income statement (TTM)Industry

Operating Income
-$35.90M
-$21.37M
Pretax Income
-$34.66M
-$12.95M
Net Income
-$34.66M
-$22.35M
EBITDA
-$35.90M
-$17.21M
EPS (Diluted)
-$3.89
-$0.76

Balance sheetIndustry

Net Cash (Debt)
$20.57M
$17.76M
Net Cash Per Share
$2.06
$0.80
Equity (Book Value)
$21.74M
$53.89M
Book Value Per Share
$2.18
$1.50
Tangible Book Value
$21.74M
$27.13M
Working Capital
$20.47M
$79.99M

Cash flow (TTM)Industry

Operating Cash Flow
-$35.28M
-$12.38M
Capital Expenditures
-$7.00K
-$1.00M
Free Cash Flow
-$35.29M
-$18.21M
FCF Per Share
-$3.54
-$0.42

Dividends and yieldsIndustry

Earnings Yield
-177.2%
-21.8%
FCF Yield
-180.4%
-9.44%

Taxes and interestIndustry

Income Tax
$0
$73.00K

Scores and fair valueIndustry

Altman Z-Score
-15.37
0.23
Piotroski F-Score
1
4

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 13, 2026. The S&P 500 is measured by the SPY fund.

PeriodATOSS&P 500DifferenceATOS per yearS&P 500 per year
1 month-23.4%-3.0%−20.4 pts
3 months-23.4%-2.8%−20.7 pts
Year to date-77.9%+11.5%−89.3 pts
1 year-83.7%+13.5%−97.2 pts
3 years-79.3%+77.7%−157.0 pts-40.8%+21.1%
5 years-95.1%+72.6%−167.7 pts-45.2%+11.5%
10 years-99.4%+308.2%−407.5 pts-39.9%+15.1%

Short interest

Shares sold short and not yet covered, reported by brokers to FINRA twice a month. Latest settlement date Oct 30, 2026.

1M ATOS shares were sold short on Oct 30, 2026, down 22.9% from the previous report, or 5.40% of the shares available to trade. At recent volumes it would take 7.6 days to buy them back. Over the last 20 sessions, 46.7% of the volume reported to FINRA was short selling.

Settlement dateShares shortChangeAvg. daily volumeDays to cover
Oct 30, 2026526,812-22.9%69,3797.6
Oct 15, 2026683,539-13.3%116,8525.8
Sep 30, 2026788,334+3.4%69,72011.3
Sep 15, 2026762,156+0.8%47,07316.2
Aug 31, 2026755,776-5.0%60,46012.5
Aug 14, 2026795,457+4.6%55,38614.4
Jul 31, 2026760,127-2.1%56,38013.5
Jul 15, 2026776,246+10.3%166,4414.7
Jun 30, 2026704,017+32.0%320,2932.2
Jun 15, 2026533,343+33.0%262,4362.0
May 29, 2026400,996+17.5%41,9099.6
May 15, 2026341,344+1.1%61,0475.6

Ratios use trailing-twelve-month results and the latest balance sheet. How we calculate.

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