Nasdaq · CYN · stock
Cyngn Inc. (CYN) stock price history
Every Nasdaq trading session of Cyngn Inc. from Oct 20, 2021 to Sep 29, 2026: 1,240 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.
CYN adjusted close, 2021 to 2026
- $127,350
- All time high, 2021
- $6.82
- 52 week high, $0.6430 low
- 1,240
- Daily sessions since 2021
Last updated Sep 29, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.
CYN key facts
- Cyngn Inc. (CYN) closed at $0.7128 on Sep 29, 2026 on Nasdaq.
- CYN's all time high close is $127,350, set on Oct 28, 2021; its all time low close is $0.6580 on Sep 28, 2026.
- CYN's 52 week range is $0.6430 to $6.82.
- CYN returned -88.1% over the year to Sep 29, 2026.
- Since Oct 20, 2021 CYN returned -100%, -91.1% a year compounded.
- CYN's deepest drawdown was -100.0% from Oct 28, 2021 to Sep 28, 2026.
- DataCedar holds 1,240 daily sessions of CYN history from Oct 20, 2021 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
CYN price chart, 2021 to 2026
CYN returns
Price return from the last close on or before the window start to Sep 29, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -31.5% |
| 3 months | -46.4% |
| 6 months | -53.7% |
| Year to date | -71.0% |
| 1 year | -88.1% |
| 3 years | -100.0% |
| 5 years | n/a |
| 10 years | n/a |
| Since Oct 20, 2021 | -100.0% |
| Compound annual growth, 4.9 years | -91.1% |
CYN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $127,350 on Oct 28, 2021
- All time low close
- $0.6580 on Sep 28, 2026
- 52 week high
- $6.82 on Oct 3, 2025
- 52 week low
- $0.6430 on Sep 28, 2026
- Deepest drawdown
- -100.0% from Oct 28, 2021 to Sep 28, 2026, not yet recovered
- Best single session
- +208.3% on Feb 10, 2025
- Worst single session
- -70.9% on Dec 20, 2024
- Volatility, 1 year annualised
- 90.7%
- Sessions closing higher, 1 year
- 41%
- Best calendar year
- 2023, -78%
- Worst calendar year
- 2025, -98%
CYN 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 Oct 20, 2021; 2026 runs to Sep 29, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $2.48 | $2.98 | $0.6430 | $0.7128 | -70.1% | 259.4M | 186 |
| 2025 | $128.10 | $129.00 | $2.23 | $2.38 | -98.1% | 372.3M | 250 |
| 2024 | $2,205 | $4,725 | $52.65 | $127.35 | -94.1% | 2.2M | 252 |
| 2023 | $10,350 | $22,785 | $1,875 | $2,175 | -78.5% | 18.2K | 250 |
| 2022 | $68,100 | $93,750 | $8,730 | $10,110 | -85.0% | 51.1K | 251 |
| 2021 | $120,150 | $148,650 | $64,500 | $67,500 | n/a | 5.4K | 51 |
CYN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $0.7128 | -32.1% |
| August 2026 | $1.05 | -0.9% |
| July 2026 | $1.06 | -23.7% |
| June 2026 | $1.39 | -6.7% |
| May 2026 | $1.49 | -12.4% |
| April 2026 | $1.70 | +2.4% |
| March 2026 | $1.66 | +8.5% |
| February 2026 | $1.53 | -13.1% |
| January 2026 | $1.76 | -26.1% |
| December 2025 | $2.38 | -33.7% |
| November 2025 | $3.59 | -24.6% |
| October 2025 | $4.76 | -21.1% |
About the CYN data
Daily bars. 1,240 sessions from Oct 20, 2021 to Sep 29, 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 Oct 20, 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/CYN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq
Common questions
CYN share price history
