NYSE · KOS · stock
Kosmos Energy Ltd. (KOS) stock price history
Every NYSE trading session of Kosmos Energy Ltd. from May 11, 2011 to Sep 28, 2026: 3,868 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.
KOS adjusted close, 2011 to 2026
- $18.37
- All time high, 2011
- $3.34
- 52 week high, $0.8400 low
- 3,868
- Daily sessions since 2011
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2011 to 2026 series and minute bars.
KOS key facts
- Kosmos Energy Ltd. (KOS) closed at $2.58 on Sep 28, 2026 on NYSE.
- KOS's all time high close is $18.37, set on May 27, 2011; its all time low close is $0.5300 on Mar 19, 2020.
- KOS's 52 week range is $0.8400 to $3.34.
- KOS returned +44.1% over the year to Sep 28, 2026 and -14.9% over five years.
- Over ten years KOS returned -56%, -7.9% a year compounded.
- KOS's deepest drawdown was -97.1% from May 27, 2011 to Mar 19, 2020.
- DataCedar holds 3,868 daily sessions of KOS history from May 11, 2011 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
KOS price chart, 2011 to 2026
KOS returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -6.5% |
| 3 months | +18.3% |
| 6 months | -11.3% |
| Year to date | +183.5% |
| 1 year | +44.1% |
| 3 years | -68.6% |
| 5 years | -14.9% |
| 10 years | -55.9% |
| Since May 11, 2011 | -85.2% |
| Compound annual growth, 15.4 years | -11.7% |
KOS records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $18.37 on May 27, 2011
- All time low close
- $0.5300 on Mar 19, 2020
- 52 week high
- $3.34 on May 18, 2026
- 52 week low
- $0.8400 on Dec 26, 2025
- Deepest drawdown
- -97.1% from May 27, 2011 to Mar 19, 2020, not yet recovered
- Best single session
- +48.8% on Mar 10, 2020
- Worst single session
- -59.0% on Mar 9, 2020
- Volatility, 1 year annualised
- 87.5%
- Sessions closing higher, 1 year
- 50%
- Best calendar year
- 2022, +84%
- Worst calendar year
- 2025, -73%
KOS 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. 2011 starts on May 11, 2011; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $0.9100 | $3.34 | $0.8800 | $2.58 | +183.5% | 3.5B | 185 |
| 2025 | $3.53 | $4.01 | $0.8400 | $0.9100 | -73.4% | 2.7B | 250 |
| 2024 | $6.76 | $6.93 | $2.62 | $3.42 | -49.0% | 1.9B | 252 |
| 2023 | $6.28 | $8.55 | $5.28 | $6.71 | +5.5% | 1.3B | 250 |
| 2022 | $3.45 | $8.49 | $3.45 | $6.36 | +83.8% | 2.2B | 251 |
| 2021 | $2.39 | $4.24 | $1.80 | $3.46 | +47.2% | 1.9B | 252 |
| 2020 | $5.67 | $6.67 | $0.5000 | $2.35 | -58.1% | 2.5B | 253 |
| 2019 | $3.80 | $7.37 | $3.69 | $5.60 | +44.2% | 1.2B | 252 |
| 2018 | $6.60 | $9.31 | $3.37 | $3.89 | -40.6% | 731.9M | 251 |
| 2017 | $6.85 | $8.23 | $5.28 | $6.54 | -2.3% | 643.3M | 251 |
| 2016 | $4.99 | $6.82 | $3.03 | $6.69 | +34.8% | 377.9M | 252 |
| 2015 | $7.94 | $9.58 | $4.41 | $4.96 | -38.0% | 432.4M | 252 |
| 2014 | $10.71 | $11.07 | $6.64 | $8.01 | -25.0% | 325.9M | 252 |
| 2013 | $11.93 | $12.46 | $9.27 | $10.67 | -9.5% | 179.7M | 252 |
| 2012 | $11.93 | $14.44 | $7.82 | $11.79 | +0.7% | 96.6M | 250 |
| 2011 | $18.62 | $18.81 | $9.64 | $11.70 | n/a | 85.6M | 163 |
KOS monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $2.58 | -9.8% |
| August 2026 | $2.86 | +6.3% |
| July 2026 | $2.69 | +27.5% |
| June 2026 | $2.11 | -24.6% |
| May 2026 | $2.80 | -9.1% |
| April 2026 | $3.08 | +10.8% |
| March 2026 | $2.78 | +19.3% |
| February 2026 | $2.33 | +47.5% |
| January 2026 | $1.58 | +73.6% |
| December 2025 | $0.9100 | -18.7% |
| November 2025 | $1.12 | -28.7% |
| October 2025 | $1.57 | -5.4% |
About the KOS data
Daily bars. 3,868 sessions from May 11, 2011 to Sep 28, 2026, one row per NYSE 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 NYSE 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 May 11, 2011, 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/KOS/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on NYSE
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Common questions
KOS share price history
