XML 31 R17.htm IDEA: XBRL DOCUMENT
v3.22.2.2

FINANCIAL HIGHLIGHTS | 9 Months Ended
--- | ---
Sep. 30, 2022
FINANCIAL HIGHLIGHTS |
FINANCIAL HIGHLIGHTS | NOTE 6 — FINANCIAL HIGHLIGHTS The following table presents per share performance data and other supplemental financial data for the three and nine months ended September 30, 2022 and 2021 for the shareholders. This information has been derived from information presented in the condensed financial statements. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Three months ended | ​ | Nine months ended |  | Nine months ended | ​
​ |  | September 30, 2022 |  | September 30, 2021 |  | September 30, 2022 | ​ | September 30, 2021 | ​
​ | ​ | (Unaudited) | ​ | (Unaudited) | ​ | (Unaudited) | ​ | (Unaudited) | ​
Per Share Operating Performance: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net asset value, beginning of period | ​ | $ | 32.68 | ​ | $ | 19.24 | ​ | $ | 20.87 | ​ | $ | 12.91 | ​
Total income (loss) | ​ |  | (5.36) | ​ |  | 1.47 | ​ | ​ | 6.60 | ​ |  | 7.88 | ​
Total expenses | ​ |  | (0.08) | ​ |  | (0.05) | ​ | ​ | (0.23) | ​ |  | (0.13) | ​
Net increase (decrease) in net asset value | ​ |  | (5.44) | ​ |  | 1.42 | ​ | ​ | 6.37 | ​ |  | 7.75 | ​
Net asset value, end of period | ​ | $ | 27.24 | ​ | $ | 20.66 | ​ | $ | 27.24 | ​ | $ | 20.66 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
Total Return | ​ | ​ | (16.65) | % | ​ | 7.38 | % | ​ | 30.52 | % |  | 60.03 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
Ratios to Average Net Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |  | ​ | ​
Total income (loss) | ​ | ​ | (17.46) | % | ​ | 6.37 | % | ​ | 30.26 | % |  | 49.79 | %
Management fees# | ​ | ​ | 0.75 | % | ​ | 0.75 | % | ​ | 0.75 | % |  | 0.75 | %
Total expenses excluding management fees# | ​ | ​ | 0.25 | % | ​ | 0.33 | % | ​ | 0.29 | % |  | 0.34 | %
Expense waived# | ​ | ​ | — | % | ​ | — | % | ​ | — | % |  | (0.08) | %
Net expense excluding management fees# | ​ | ​ | 0.25 | % | ​ | 0.33 | % | ​ | 0.29 | % |  | 0.26 | %
Net income (loss) | ​ | ​ | (17.71) | % | ​ | 6.10 | % | ​ | 29.48 | % |  | 49.03 | %
# | Annualized.
​ Total returns are calculated based on the change in value during the period. An individual shareholder’s total return and ratio may vary from the above total returns and ratios based on the timing of contributions to and withdrawals from BNO.

X
- References No definition available. + Details
Name: | bno_SupplementalFinancialInformationDisclosureAbstract
Namespace Prefix: | bno_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for supplemental financial information. + References No definition available. + Details
Name: | bno_SupplementalFinancialInformationDisclosureTextBlock
Namespace Prefix: | bno_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration