ALThistorical intraday data
ListedAltimmune, Inc. Common StockNasdaq
Altimmune, Inc. Common Stock (ALT) is a common stock listed on Nasdaq. ALT has 4,252 trading days on file, from September 10, 2003 to November 9, 2026, with 29,687,047 trades. There are 895,329 1-minute bars on file.
On file
- First day
- 2003-09-10
- Last day
- 2026-11-09
- Trading days
- 4,252
- Trades
- 29,687,047
- 1-minute bars
- 895,329
- Bars, about
- 13 MB
- Trades, about
- 410 MB
- Quotes, about
- 468 MB
Sizes are approximate: this ticker’s share of the Parquet files.
Trading history
No ALT data for 2008, and 2014 to 2016. A gap usually means the symbol belonged to a different company before and after it. The name above is the latest on record.
Sample rows
| Time (ET) | Open | High | Low | Close | Volume | Trades |
|---|---|---|---|---|---|---|
| 09:30 | 2.09 | 2.11 | 2.07 | 2.07 | 114,422.182706 | 79 |
| 09:31 | 2.06 | 2.065 | 2.05 | 2.065 | 14,581.693779 | 20 |
| 09:32 | 2.07 | 2.07 | 2.05 | 2.06 | 3,556.92561 | 11 |
| 09:33 | 2.0646 | 2.0699 | 2.05 | 2.05 | 2,196.984624 | 15 |
| 09:34 | 2.065 | 2.065 | 2.06 | 2.06 | 11,056.672314 | 25 |
ALT by year
| Year | Trading days on file | Trades |
|---|---|---|
| 2003 | 79 | 32,484 |
| 2004 | 252 | 42,752 |
| 2005 | 252 | 22,363 |
| 2006 | 251 | 32,564 |
| 2007 | 140 | 29,652 |
| 2009 | 32 | 689 |
| 2010 | 252 | 9,274 |
| 2011 | 252 | 13,075 |
| 2012 | 250 | 9,318 |
| 2013 | 101 | 6,575 |
| 2017 | 166 | 90,283 |
| 2018 | 251 | 527,072 |
| 2019 | 252 | 474,579 |
| 2020 | 253 | 3,228,071 |
| 2021 | 252 | 2,513,877 |
| 2022 | 251 | 3,215,778 |
| 2023 | 250 | 4,644,063 |
| 2024 | 252 | 6,063,610 |
| 2025 | 250 | 4,780,656 |
| 2026 | 214 | 3,950,312 |