Cboe BZX · OILK · ETF
ProShares K-1 Free Crude Oil ETF (OILK) ETF price history
Every Cboe BZX trading session of ProShares K-1 Free Crude Oil ETF from Sep 28, 2016 to Sep 28, 2026: 2,513 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.
OILK adjusted close, 2016 to 2026
- $58.97
- All time high, 2026
- $59.44
- 52 week high, $33.45 low
- 2,513
- Daily sessions since 2016
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2016 to 2026 series and minute bars.
OILK key facts
- ProShares K-1 Free Crude Oil ETF (OILK) closed at $57.73 on Sep 28, 2026 on Cboe BZX.
- OILK's all time high close is $58.97, set on May 19, 2026; its all time low close is $9.34 on Apr 28, 2020.
- OILK's 52 week range is $33.45 to $59.44.
- OILK returned +50.6% over the year to Sep 28, 2026 and +108.4% over five years.
- Over ten years OILK returned +50%, +4.2% a year compounded.
- OILK's deepest drawdown was -83.8% from Oct 3, 2018 to Apr 28, 2020.
- DataCedar holds 2,513 daily sessions of OILK history from Sep 28, 2016 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
OILK price chart, 2016 to 2026
OILK returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +11.9% |
| 3 months | +23.4% |
| 6 months | +10.4% |
| Year to date | +65.5% |
| 1 year | +50.6% |
| 3 years | +38.2% |
| 5 years | +108.4% |
| 10 years | +50.5% |
| Since Sep 28, 2016 | +50.5% |
| Compound annual growth, 10.0 years | +4.2% |
OILK records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $58.97 on May 19, 2026
- All time low close
- $9.34 on Apr 28, 2020
- 52 week high
- $59.44 on May 18, 2026
- 52 week low
- $33.45 on Dec 16, 2025
- Deepest drawdown
- -83.8% from Oct 3, 2018 to Apr 28, 2020, recovered May 4, 2026
- Best single session
- +17.6% on Apr 2, 2020
- Worst single session
- -27.2% on Apr 21, 2020
- Volatility, 1 year annualised
- 31.9%
- Sessions closing higher, 1 year
- 58%
- Best calendar year
- 2021, +64%
- Worst calendar year
- 2020, -61%
OILK 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. 2016 starts on Sep 28, 2016; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $34.34 | $59.44 | $33.89 | $57.73 | +66.9% | 38.7M | 185 |
| 2025 | $39.82 | $42.12 | $32.08 | $34.59 | -11.9% | 9.7M | 250 |
| 2024 | $36.83 | $43.64 | $35.27 | $39.25 | +8.2% | 14.5M | 252 |
| 2023 | $35.99 | $42.42 | $30.75 | $36.28 | -1.0% | 12.7M | 250 |
| 2022 | $28.66 | $47.83 | $28.60 | $36.64 | +27.6% | 15.8M | 251 |
| 2021 | $17.51 | $31.07 | $17.14 | $28.72 | +63.7% | 8.4M | 252 |
| 2020 | $45.11 | $46.88 | $8.98 | $17.54 | -61.1% | 14.2M | 253 |
| 2019 | $33.61 | $50.53 | $33.43 | $45.09 | +30.5% | 1.4M | 252 |
| 2018 | $43.42 | $57.80 | $32.99 | $34.56 | -20.4% | 900.4K | 251 |
| 2017 | $43.25 | $43.44 | $31.24 | $43.42 | +2.8% | 288.8K | 251 |
| 2016 | $37.10 | $42.94 | $34.61 | $42.23 | n/a | 107K | 66 |
OILK monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $57.73 | +9.2% |
| August 2026 | $52.88 | +2.8% |
| July 2026 | $51.42 | +8.8% |
| June 2026 | $47.25 | -12.5% |
| May 2026 | $53.98 | -3.8% |
| April 2026 | $56.12 | +11.0% |
| March 2026 | $50.55 | +25.6% |
| February 2026 | $40.24 | +3.4% |
| January 2026 | $38.91 | +12.5% |
| December 2025 | $34.59 | -2.8% |
| November 2025 | $35.59 | -1.9% |
| October 2025 | $36.28 | -1.8% |
About the OILK data
Daily bars. 2,513 sessions from Sep 28, 2016 to Sep 28, 2026, one row per Cboe BZX 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 Cboe BZX 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 28, 2016, 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/OILK/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Cboe BZX
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Common questions
OILK share price history
