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Altimmune (ALT) closed at $2.12 on November 9, 2026, up 1.9% from the previous close, on volume of 4,182,764 shares (30-day average 3,492,463).

Key numbers
  • Last close: $2.12 (November 9, 2026)
  • 52-week range: $1.91 to $6.44
  • Market value: $412.0 million
  • 30-day implied volatility (IV30): 63.1%
  • Option volume: 2,300 contracts (2,244 calls, 56 puts); 30-day average 2,108
  • Next earnings: November 12, 2026, before the market opens (confirmed)

Data as of November 9, 2026.

ALT Stock Summary and Trading Ideas (Altimmune | NASDAQ:ALT)

Charts for Today's Stock Price and Implied Volatility in Altimmune

9-Nov-2026

Stock Price & Volume | Full Chart

30-Day Implied Volatility | IV30 Full Chart

Trade Ideas for Best Option Strategies for ALT by Theoretical Edge and Win Rates

Sentiment

Largest Multi-Leg Option Trades (30 Days)

#DateStrategyLegsContracts
1 Oct 27, 2026 Call Spread 15-Jan-272.5 : 3 C 1,898
2-3 The next 2 largest trades are for Premium members. Start a 7-day free trial

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Ranked by contracts: multi-leg trades of 200 or more contracts on one day, through Nov 6, 2026. See the 10 largest for 30, 60 and 90 days

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Trading Statistics

Key Ratios

Altimmune (ALT) Frequently Asked Questions

What does Altimmune do?

Altimmune Inc is a late clinical-stage biopharmaceutical company developing therapies for patients with serious liver diseases. The Company's key candidate, pemvidutide, is a dual-action therapy targeting both glucagon and GLP-1 receptors in a balanced 1:1 ratio in development for the treatment of metabolic dysfunction-associated steatohepatitis (MASH), alcohol use disorder (AUD), and alcohol-associated liver disease (ALD). The company also plans to pursue additional indications for pemvidutide that leverage the differentiated clinical profile of pemvidutide.

What symbol and exchange does Altimmune shares trade?

Altimmune trades on the NASDAQ stock market under the symbol ALT.

What is Altimmune stock price doing today?

As of November 9, 2026, ALT stock price climbed to $2.12 with 4,182,764 million shares trading.

What is Altimmune's Beta?

ALT has a beta of 1.82, meaning it tends to be more sensitive to market movements. ALT has a correlation of 0.11 to the broad based SPY ETF.

How much is Altimmune worth?

ALT has a market cap of $412.03 million. This is considered a Small Cap stock.

How much money does Altimmune make?

Last quarter Altimmune reported $0 in Revenue and -$.12 earnings per share. This fell short of revenue expectation by $-1,400 and exceeded earnings estimates by $.01.

What is the highest and lowest price Altimmune traded in the last 3 year period?

In the last 3 years, ALT traded as high as $14.84 and as low as $1.91.

What are the top ETFs holding Altimmune?

The top ETF exchange traded funds that ALT belongs to (by Net Assets): VTI, IWM, XBI, VXF, IWN.

Is Altimmune (ALT) a good investment?

ALT has underperformed the market in the last year with a return of -46.2%, while the SPY ETF gained +13.4%. In the last 3 month period, ALT fell short of the market, returning -29.6%, while SPY returned -1.8%. However, in the most recent 2 weeks ALT has outperformed the stock market by returning 0.0%, while SPY returned -1.0%.

What are the support and resistance levels for Altimmune (ALT)?

ALT support price is $2.00 and resistance is $2.16 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that ALT shares will trade within this expected range on the day.

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