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Karyopharm Therapeutics Inc. (KPTI) stock

KPTINasdaqPharmaceutical PreparationsFiscal year ends December 31Also trades as KPTIQ
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026Score 0/30
$0.04−0.01 (-20.00%)

Close on Nov 9, 2026Market cap $1.16KP/E –Yield –

Karyopharm Therapeutics Inc. grew revenue 6.8% to $146.62M over the twelve months to Jun 30, 2026. Free cash flow was -$75.37M. At the latest close the market valued the company at $1.16K.

Revenue
$146.62M
+6.8% vs. a year earlier
Operating income
-$82.35M
TTM Q2 2026
Free cash flow
-$75.37M
FY2025
EPS, diluted
-$17.93
FY2025

Key statistics

Valuation at the latest close; fundamentals over the trailing twelve months, balances at Jun 30, 2026

Valuation

Market cap
$1.16K
P/E ratio
–
Price to sales
0.00
Price to book
–
Dividend yield
–
Free cash flow yield
-6511248.19%

Fundamentals

Revenue
$146.62M
Net income
-$224.74M
EPS, diluted
-$17.93
Free cash flow
-$75.37M
Book value per share
-$11409.50
Diluted shares
0M

Trading

Next earnings
Q3 FY2026, expected soon
Previous close
$0.05
Open
$0.04
Day's range
$0.04 – $0.04
Volume
23,722,490
Average volume (20 days)
17,069,236
Index membership
Russell 2000 (since Jun 2026)

Index membership is inferred from the holdings of funds that track each index (IWM), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.

Market cap history

Month-end market cap since 2013, using shares outstanding reported at the time

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 9, 2026. The S&P 500 is measured by the SPY fund.

PeriodKPTIS&P 500DifferenceKPTI per yearS&P 500 per year
1 month-93.4%-3.3%−90.1 pts
3 months-98.1%-2.4%−95.7 pts
Year to date-99.5%+11.2%−110.7 pts
1 year-99.2%+13.4%−112.6 pts
3 years-99.6%+79.9%−179.5 pts-84.3%+21.6%
5 years-100.0%+72.2%−172.2 pts-80.0%+11.5%
10 years-100.0%+307.3%−407.3 pts-55.8%+15.1%

Fifteen years at a glance

Fiscal years 2011 to 2025 and trailing twelve months, USD

Revenue

$146.62M+6.8% YoY

Operating income

-$82.35M

Net income

-$224.74M

EPS, diluted

–

Free cash flow

–
Reported periodTrailing twelve months

Press releases

Releases Karyopharm Therapeutics filed with the SEC as exhibits to Form 8-K or 6-K

All press releases and earnings

About Karyopharm Therapeutics

Pharmaceutical Preparations

Karyopharm Therapeutics Inc. is a pharmaceutical company that focuses on the discovery, development, and commercialization of treatments such as Xpovio. Operating within the healthcare sector, the business develops product candidates and enters into commercial collaborations and licensing agreements with partner firms, including Menarini and Antengene Therapeutics. Through these arrangements, the company provides products and licenses its pharmaceutical assets to partners and customers across the industry.

Company profile, executives and history

Karyopharm Therapeutics stock: common questions

What is Karyopharm Therapeutics's stock price?

KPTI closed at $0.04 on Nov 9, 2026, down 20.00% on the day.

What is Karyopharm Therapeutics's market cap?

Karyopharm Therapeutics was worth $1.16K at the close on Nov 9, 2026: the share price times the diluted shares outstanding.

What is KPTI's P/E ratio?

Karyopharm Therapeutics lost money over fiscal 2025 (diluted EPS -$17.93), so it has no meaningful P/E ratio.

How much revenue does Karyopharm Therapeutics make?

Karyopharm Therapeutics reported revenue of $146.62M for the twelve months to Jun 30, 2026, up 6.8% from a year earlier.

Does Karyopharm Therapeutics pay a dividend?

No. Karyopharm Therapeutics has not paid a cash dividend over the last twelve months.

When does Karyopharm Therapeutics report earnings next?

Karyopharm Therapeutics's Q3 FY2026 results are due soon; the company has not yet filed them with the SEC.

How has KPTI stock performed over the past year?

Including dividends, KPTI returned -99.2% over the past year, against +13.4% for the S&P 500.

Who are Karyopharm Therapeutics's competitors?

Companies most similar to Karyopharm Therapeutics by business, industry and size include LGND, AMRN, IDYA, TNGX, AKBA.

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