Nasdaq · SPRO · stock
Spero Therapeutics, Inc. (SPRO) stock price history
Every Nasdaq trading session of Spero Therapeutics, Inc. from Nov 2, 2017 to Nov 11, 2026: 2,268 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.
SPRO adjusted close, 2017 to 2026
- $22.07
- All time high, 2020
- $3.08
- 52 week high, $0.9610 low
- 2,268
- Daily sessions since 2017
Last updated Nov 11, 2026, the last stored session. Refreshes after each trading day. Full 2017 to 2026 series and minute bars.
SPRO key facts
- Spero Therapeutics, Inc. (SPRO) closed at $1.02 on Nov 11, 2026 on Nasdaq.
- SPRO's all time high close is $22.07, set on Dec 28, 2020; its all time low close is $0.5600 on Apr 8, 2025.
- SPRO's 52 week range is $0.9610 to $3.08.
- SPRO returned -61.1% over the year to Nov 11, 2026 and -94.0% over five years.
- Since Nov 2, 2017 SPRO returned -91%, -23.5% a year compounded.
- SPRO's deepest drawdown was -97.5% from Dec 28, 2020 to Apr 8, 2025.
- DataCedar holds 2,268 daily sessions of SPRO history from Nov 2, 2017 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
SPRO price chart, 2017 to 2026
SPRO returns
Price return from the last close on or before the window start to Nov 11, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -15.0% |
| 3 months | -17.1% |
| 6 months | -60.0% |
| Year to date | -55.1% |
| 1 year | -61.1% |
| 3 years | -8.1% |
| 5 years | -94.0% |
| 10 years | n/a |
| Since Nov 2, 2017 | -91.1% |
| Compound annual growth, 9.0 years | -23.5% |
SPRO records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $22.07 on Dec 28, 2020
- All time low close
- $0.5600 on Apr 8, 2025
- 52 week high
- $3.08 on May 27, 2026
- 52 week low
- $0.9610 on Nov 5, 2026
- Deepest drawdown
- -97.5% from Dec 28, 2020 to Apr 8, 2025, not yet recovered
- Best single session
- +244.6% on May 28, 2025
- Worst single session
- -63.7% on May 3, 2022
- Volatility, 1 year annualised
- 65.9%
- Sessions closing higher, 1 year
- 43%
- Best calendar year
- 2025, +126%
- Worst calendar year
- 2022, -89%
SPRO 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. 2017 starts on Nov 2, 2017; 2026 runs to Nov 11, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $2.32 | $3.08 | $0.9610 | $1.02 | -56.2% | 169M | 217 |
| 2025 | $1.05 | $3.22 | $0.5050 | $2.33 | +126.2% | 352.2M | 250 |
| 2024 | $1.47 | $1.89 | $0.9190 | $1.03 | -29.9% | 56M | 252 |
| 2023 | $1.75 | $2.04 | $0.9900 | $1.47 | -15.0% | 87M | 250 |
| 2022 | $16.29 | $16.30 | $0.6800 | $1.73 | -89.2% | 595.9M | 251 |
| 2021 | $19.48 | $22.24 | $11.75 | $16.01 | -17.4% | 42.5M | 252 |
| 2020 | $9.76 | $23.64 | $5.25 | $19.39 | +101.7% | 57.1M | 253 |
| 2019 | $6.09 | $14.48 | $6.00 | $9.61 | +56.3% | 15.1M | 252 |
| 2018 | $11.82 | $19.00 | $5.52 | $6.15 | -47.7% | 20.5M | 251 |
| 2017 | $13.25 | $15.40 | $9.85 | $11.75 | n/a | 5.5M | 40 |
SPRO monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | $1.02 | -3.8% |
| October 2026 | $1.06 | -12.4% |
| September 2026 | $1.21 | -0.8% |
| August 2026 | $1.22 | +4.3% |
| July 2026 | $1.17 | -47.1% |
| June 2026 | $2.21 | -21.9% |
| May 2026 | $2.83 | +12.7% |
| April 2026 | $2.51 | +7.3% |
| March 2026 | $2.34 | +7.8% |
| February 2026 | $2.17 | -0.9% |
| January 2026 | $2.19 | -6.0% |
| December 2025 | $2.33 | -2.9% |
About the SPRO data
Daily bars. 2,268 sessions from Nov 2, 2017 to Nov 11, 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 Nov 2, 2017, 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%3ASPRO/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq
Common questions
SPRO share price history
