BMV · ALT1 · stock
Altimmune, Inc. (ALT1) stock price history
Every BMV trading session of Altimmune, Inc. from Feb 10, 2021 to Nov 12, 2026: 1,445 daily bars, adjusted for splits and dividends, with minute bars from Sep 21, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
ALT1 adjusted close, 2021 to 2026
- MX$496.82
- All time high, 2021
- MX$102.00
- 52 week high, MX$35.00 low
- 1,445
- Daily sessions since 2021
Last updated Nov 12, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.
ALT1 key facts
- Altimmune, Inc. (ALT1) closed at MX$35.00 on Nov 12, 2026 on BMV.
- ALT1's all time high close is MX$496.82, set on Feb 17, 2021; its all time low close is MX$35.00 on Nov 12, 2026.
- ALT1's 52 week range is MX$35.00 to MX$102.00.
- ALT1 returned -55.5% over the year to Nov 12, 2026 and -84.0% over five years.
- Since Feb 10, 2021 ALT1 returned -92%, -35.2% a year compounded.
- ALT1's deepest drawdown was -93.0% from Feb 17, 2021 to Nov 12, 2026.
- DataCedar holds 1,445 daily sessions of ALT1 history from Feb 10, 2021 and minute bars from Sep 21, 2026, adjusted for splits and dividends, served by the API under a key.
ALT1 price chart, 2021 to 2026
ALT1 returns
Price return from the last close on or before the window start to Nov 12, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -27.8% |
| 3 months | -27.8% |
| 6 months | -34.0% |
| Year to date | -65.2% |
| 1 year | -55.5% |
| 3 years | -27.2% |
| 5 years | -84.0% |
| 10 years | n/a |
| Since Feb 10, 2021 | -91.7% |
| Compound annual growth, 5.8 years | -35.2% |
ALT1 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- MX$496.82 on Feb 17, 2021
- All time low close
- MX$35.00 on Nov 12, 2026
- 52 week high
- MX$102.00 on Dec 8, 2025
- 52 week low
- MX$35.00 on Nov 12, 2026
- Deepest drawdown
- -93.0% from Feb 17, 2021 to Nov 12, 2026, not yet recovered
- Best single session
- +72.5% on Jan 13, 2023
- Worst single session
- -60.7% on Mar 22, 2023
- Volatility, 1 year annualised
- 53.8%
- Sessions closing higher, 1 year
- 8%
- Best calendar year
- 2023, +8%
- Worst calendar year
- 2025, -35%
ALT1 price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2021 starts on Feb 10, 2021; 2026 runs to Nov 12, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | MX$100.70 | MX$100.70 | MX$35.00 | MX$35.00 | -65.2% | 162.5K | 213 |
| 2025 | MX$156.00 | MX$156.00 | MX$65.90 | MX$100.70 | -35.4% | 55.8K | 251 |
| 2024 | MX$190.00 | MX$246.00 | MX$113.09 | MX$156.00 | -17.9% | 44K | 251 |
| 2023 | MX$175.63 | MX$303.00 | MX$44.00 | MX$190.00 | +8.2% | 148.9K | 251 |
| 2022 | MX$189.50 | MX$445.00 | MX$83.00 | MX$175.63 | -7.3% | 110.6K | 252 |
| 2021 | MX$416.00 | MX$496.82 | MX$175.05 | MX$189.50 | n/a | 336.3K | 227 |
ALT1 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | MX$35.00 | -17.2% |
| October 2026 | MX$42.25 | -20.2% |
| September 2026 | MX$52.94 | +3.9% |
| August 2026 | MX$50.94 | +5.0% |
| July 2026 | MX$48.50 | -10.2% |
| June 2026 | MX$54.00 | +2.5% |
| May 2026 | MX$52.70 | +15.8% |
| April 2026 | MX$45.51 | -22.7% |
| March 2026 | MX$58.89 | -24.5% |
| February 2026 | MX$78.00 | -22.5% |
| January 2026 | MX$100.70 | 0.0% |
| December 2025 | MX$100.70 | +21.3% |
About the ALT1 data
Daily bars. 1,445 sessions from Feb 10, 2021 to Nov 12, 2026, one row per BMV trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 21, 2026 forward, most recent session Nov 5, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are BMV trading days; minute timestamps are UTC. Prices are in MXN. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Feb 10, 2021, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/bmv%3AALT1/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on BMV
Common questions
ALT1 share price history
