Nasdaq · DCOY · stock
Decoy Therapeutics Inc. (DCOY) stock price history
Every Nasdaq trading session of Decoy Therapeutics Inc. from Jan 29, 2015 to Sep 28, 2026: 2,933 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.
DCOY adjusted close, 2015 to 2026
- $21,753,000
- All time high, 2015
- $55.92
- 52 week high, $2.18 low
- 2,933
- Daily sessions since 2015
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2015 to 2026 series and minute bars.
DCOY key facts
- Decoy Therapeutics Inc. (DCOY) closed at $2.31 on Sep 28, 2026 on Nasdaq.
- DCOY's all time high close is $21,753,000, set on Apr 21, 2015; its all time low close is $2.31 on Sep 28, 2026.
- DCOY's 52 week range is $2.18 to $55.92.
- DCOY returned -94.9% over the year to Sep 28, 2026 and -100.0% over five years.
- Over ten years DCOY returned -100%, -78.4% a year compounded.
- DCOY's deepest drawdown was -100.0% from Apr 21, 2015 to Sep 28, 2026.
- DataCedar holds 2,933 daily sessions of DCOY history from Jan 29, 2015 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
DCOY price chart, 2015 to 2026
DCOY returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -20.3% |
| 3 months | -58.1% |
| 6 months | -63.3% |
| Year to date | -70.3% |
| 1 year | -94.9% |
| 3 years | -99.8% |
| 5 years | -100.0% |
| 10 years | -100.0% |
| Since Jan 29, 2015 | -100.0% |
| Compound annual growth, 11.7 years | -73.7% |
DCOY records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $21,753,000 on Apr 21, 2015
- All time low close
- $2.31 on Sep 28, 2026
- 52 week high
- $55.92 on Oct 15, 2025
- 52 week low
- $2.18 on Sep 21, 2026
- Deepest drawdown
- -100.0% from Apr 21, 2015 to Sep 28, 2026, not yet recovered
- Best single session
- +134.5% on Jan 13, 2025
- Worst single session
- -75.1% on Jun 13, 2018
- Volatility, 1 year annualised
- 160.0%
- Sessions closing higher, 1 year
- 41%
- Best calendar year
- 2017, -34%
- Worst calendar year
- 2025, -98%
DCOY 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. 2015 starts on Jan 29, 2015; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $7.79 | $16.92 | $2.18 | $2.31 | -70.3% | 163.1M | 185 |
| 2025 | $320.40 | $1,296 | $7.44 | $7.79 | -97.6% | 12.1M | 250 |
| 2024 | $953.28 | $1,296 | $219.60 | $331.20 | -64.6% | 981.1K | 252 |
| 2023 | $2,362 | $6,394 | $756.00 | $936.00 | -57.5% | 16.8K | 250 |
| 2022 | $18,000 | $19,512 | $1,541 | $2,203 | -87.7% | 6K | 251 |
| 2021 | $33,480 | $126,000 | $17,316 | $17,856 | -45.5% | 11.1K | 252 |
| 2020 | $135,000 | $139,680 | $19,980 | $32,760 | -75.9% | 3.3K | 253 |
| 2019 | $288,000 | $880,200 | $104,760 | $136,080 | -54.2% | 376 | 252 |
| 2018 | $3,150,000 | $8,082,000 | $234,000 | $297,000 | -90.5% | 164 | 251 |
| 2017 | $4,968,000 | $5,392,800 | $2,412,000 | $3,141,000 | -33.9% | 6 | 251 |
| 2016 | $10,746,000 | $12,573,000 | $4,090,500 | $4,752,000 | -57.6% | 2 | 252 |
| 2015 | $17,100,000 | $22,338,000 | $8,307,000 | $11,205,000 | n/a | 8 | 234 |
DCOY monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $2.31 | -24.3% |
| August 2026 | $3.05 | -25.8% |
| July 2026 | $4.11 | -42.8% |
| June 2026 | $7.19 | -19.4% |
| May 2026 | $8.92 | +47.4% |
| April 2026 | $6.05 | -7.4% |
| March 2026 | $6.53 | -20.1% |
| February 2026 | $8.17 | -11.7% |
| January 2026 | $9.25 | +18.8% |
| December 2025 | $7.79 | -31.0% |
| November 2025 | $11.28 | -75.8% |
| October 2025 | $46.68 | +6.0% |
About the DCOY data
Daily bars. 2,933 sessions from Jan 29, 2015 to Sep 28, 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 Sep 28, 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 Jan 29, 2015, 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/DCOY/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq
Common questions
DCOY share price history
