Nasdaq · SIGA · stock
Siga Technologies INC (SIGA) stock price history
Every Nasdaq trading session of Siga Technologies INC from Sep 10, 1997 to Nov 12, 2026: 7,303 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 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.
SIGA adjusted close, 1997 to 2026
- $18.03
- All time high, 2022
- $6.29
- 52 week high, $2.83 low
- 7,303
- Daily sessions since 1997
Last updated Nov 12, 2026, the last stored session. Refreshes after each trading day. Full 1997 to 2026 series and minute bars.
SIGA key facts
- Siga Technologies INC (SIGA) closed at $2.89 on Nov 12, 2026 on Nasdaq.
- SIGA's all time high close is $18.03, set on Aug 15, 2022; its all time low close is $0.2008 on Dec 24, 2015.
- SIGA's 52 week range is $2.83 to $6.29.
- SIGA returned -47.4% over the year to Nov 12, 2026 and -40.4% over five years.
- Over ten years SIGA returned +78%, +6.0% a year compounded.
- SIGA's deepest drawdown was -98.0% from Mar 4, 2011 to Dec 24, 2015.
- DataCedar holds 7,303 daily sessions of SIGA history from Sep 10, 1997 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
SIGA price chart, 1997 to 2026
SIGA returns
Price return from the last close on or before the window start to Nov 12, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -8.5% |
| 3 months | +0.7% |
| 6 months | -35.1% |
| Year to date | -47.1% |
| 1 year | -47.4% |
| 3 years | -21.4% |
| 5 years | -40.4% |
| 10 years | +78.5% |
| Since Sep 10, 1997 | -18.9% |
| Compound annual growth, 29.2 years | -0.7% |
SIGA records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $18.03 on Aug 15, 2022
- All time low close
- $0.2008 on Dec 24, 2015
- 52 week high
- $6.29 on Feb 3, 2026
- 52 week low
- $2.83 on Aug 12, 2026
- Deepest drawdown
- -98.0% from Mar 4, 2011 to Dec 24, 2015, recovered Jul 13, 2022
- Best single session
- +130.5% on Oct 18, 2006
- Worst single session
- -43.0% on Sep 22, 2011
- Volatility, 1 year annualised
- 43.1%
- Sessions closing higher, 1 year
- 47%
- Best calendar year
- 2016, +586%
- Worst calendar year
- 2011, -82%
SIGA 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. 1997 starts on Sep 10, 1997; 2026 runs to Nov 12, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $5.46 | $6.29 | $2.83 | $2.89 | -46.5% | 131.8M | 218 |
| 2025 | $4.92 | $8.51 | $3.97 | $5.41 | +12.3% | 114.2M | 250 |
| 2024 | $4.19 | $10.28 | $3.18 | $4.81 | +15.2% | 212.4M | 252 |
| 2023 | $5.02 | $5.85 | $3.15 | $4.18 | -17.6% | 174.7M | 250 |
| 2022 | $4.88 | $18.61 | $3.78 | $5.07 | +4.2% | 1.3B | 251 |
| 2021 | $4.75 | $6.36 | $3.67 | $4.87 | +3.4% | 74.6M | 252 |
| 2020 | $3.12 | $5.25 | $2.57 | $4.71 | +52.4% | 68M | 253 |
| 2019 | $5.08 | $5.24 | $2.77 | $3.09 | -39.6% | 44.8M | 251 |
| 2018 | $3.12 | $5.49 | $2.73 | $5.12 | +62.9% | 56M | 249 |
| 2017 | $1.94 | $3.39 | $1.81 | $3.14 | +68.4% | 10.1M | 250 |
| 2016 | $0.3045 | $2.17 | $0.2267 | $1.87 | +585.7% | 17.8M | 251 |
| 2015 | $0.9263 | $1.74 | $0.1296 | $0.2721 | -70.8% | 21.7M | 248 |
| 2014 | $2.11 | $2.51 | $0.6413 | $0.9328 | -56.0% | 70.2M | 250 |
| 2013 | $1.77 | $2.98 | $1.76 | $2.12 | +24.8% | 61.3M | 252 |
| 2012 | $1.67 | $2.52 | $1.43 | $1.70 | +4.0% | 74.3M | 248 |
| 2011 | $9.20 | $10.14 | $1.15 | $1.63 | -82.0% | 158.1M | 252 |
| 2010 | $3.87 | $9.31 | $3.56 | $9.07 | +141.4% | 111.9M | 251 |
| 2009 | $2.16 | $6.54 | $2.04 | $3.76 | +77.4% | 104.8M | 252 |
| 2008 | $2.02 | $2.71 | $1.15 | $2.12 | +6.2% | 35.2M | 251 |
| 2007 | $2.47 | $3.91 | $1.63 | $2.00 | -17.9% | 104.1M | 251 |
| 2006 | $0.5700 | $3.56 | $0.5636 | $2.43 | +294.7% | 199.6M | 249 |
| 2005 | $1.10 | $1.12 | $0.4470 | $0.6154 | -42.8% | 17.9M | 251 |
| 2004 | $1.48 | $1.83 | $0.6478 | $1.08 | -27.5% | 35.5M | 252 |
| 2003 | $0.9198 | $1.92 | $0.6542 | $1.48 | +60.1% | 46.7M | 250 |
| 2002 | $1.90 | $1.90 | $0.4210 | $0.9263 | -50.7% | 11.9M | 252 |
| 2001 | $2.31 | $3.37 | $1.05 | $1.88 | -8.1% | 8.8M | 245 |
| 2000 | $1.05 | $7.29 | $0.9312 | $2.04 | +94.2% | 19.5M | 249 |
| 1999 | $0.9717 | $1.62 | $0.3846 | $1.05 | +13.0% | 2.8M | 248 |
| 1998 | $3.00 | $3.16 | $0.5263 | $0.9312 | -68.9% | 3.6M | 247 |
| 1997 | $3.56 | $4.53 | $2.11 | $3.00 | n/a | 3.8M | 78 |
SIGA monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | $2.89 | -4.9% |
| October 2026 | $3.04 | -10.6% |
| September 2026 | $3.40 | +8.3% |
| August 2026 | $3.14 | -4.0% |
| July 2026 | $3.27 | -10.2% |
| June 2026 | $3.64 | -22.2% |
| May 2026 | $4.68 | +1.7% |
| April 2026 | $4.60 | -2.8% |
| March 2026 | $4.73 | -17.3% |
| February 2026 | $5.72 | -3.4% |
| January 2026 | $5.93 | +9.7% |
| December 2025 | $5.41 | +0.8% |
About the SIGA data
Daily bars. 7,303 sessions from Sep 10, 1997 to Nov 12, 2026, one row per Nasdaq 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 Jul 13, 2026 forward, most recent session Oct 23, 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 Nasdaq trading days; minute timestamps are UTC. Prices are in USD. 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 Sep 10, 1997, 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/nasdaq%3ASIGA/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq
Common questions
SIGA share price history
