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GMO Emerging Domestic Opportunities Fund  
Risk/Return: rr_RiskReturnAbstract  
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock

GMO TRUST

Supplement dated October 26, 2022, to the
GMO Trust Prospectus, dated June 30, 2022

 

 

 

GMO Emerging Domestic Opportunities Fund (the “Fund”)

 

The Board of Trustees of GMO Trust has approved a change in the Fund’s name to “GMO Emerging Markets Select Equity Fund.” References to the Fund in the Prospectus are amended to reflect the Fund’s new name. The name of the investment team primarily responsible for portfolio management of the Fund has been changed from the “Emerging Domestic Opportunities Team” to the “Emerging Markets Select Equity Team.” References to such investment team in the Prospectus are amended to reflect the investment team’s new name.

 

The fund summary section for the Fund beginning on page 86 of the Prospectus is replaced in its entirety with the following:
Risk/Return [Heading] rr_RiskReturnHeading GMO Emerging Domestic Opportunities Fund
Objective [Heading] rr_ObjectiveHeading Investment objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

Total return above the MSCI Emerging Markets Index.
Expense [Heading] rr_ExpenseHeading Fees and expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

The table below describes the fees and expenses that you may bear for each class of shares if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund operating expenses (expenses that you bear each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Oct. 26, 2023
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities. A higher portfolio turnover rate may result in higher transaction costs and, for holders of Fund shares subject to U.S. taxes, higher income taxes. These transaction costs, which are not reflected in Annual Fund operating expenses or in the Example, affect the Fund’s performance. During its fiscal year ended February 28, 2022, the Fund’s portfolio turnover rate (excluding short-term investments) was 215% of the average value of its portfolio securities. That portfolio turnover rate includes investments in U.S. Treasury Fund, which the Fund uses as a short-term investment vehicle for cash management. The Fund’s portfolio turnover rate during its fiscal year ended February 28, 2022, excluding transactions in U.S. Treasury Fund and other short-term investments, was 190% of the average value of its portfolio securities.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 215.00%
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated, regardless of whether or not you redeem your shares at the end of such periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same as those shown in the table. The one year amounts shown reflect the expense reimbursement and waiver noted in the expense table. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal investment strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

GMO seeks to achieve the Fund’s investment objective by investing under normal circumstances at least 80% of the Fund’s assets directly and indirectly (e.g., through underlying funds or derivatives) in companies tied economically to markets that are not treated as “developed markets” in the MSCI World Index (“emerging markets”). Under normal circumstances, the Fund also invests at least 80% of its assets in equities (see “Name Policies”). The Fund primarily invests in companies with what GMO believes to be high quality, growth-oriented business models within emerging markets or companies well-positioned to benefit from the development and growth of the world’s emerging markets.

 

The Fund’s investments are not limited to investments in companies located in any particular country or geographic region and often include investments in companies located in developed markets (e.g., the United States) when those companies are tied economically to emerging markets.

 

GMO’s investment process begins with country and sector allocation and then uses fundamental analytical techniques to select individual companies. In evaluating and selecting investments, GMO considers a number of factors, including, among others, GMO’s assessment of an investment’s fundamentals, growth prospects, and positioning relative to its competitors. GMO may also consider ESG (environmental, social and governance) criteria, such as emissions, climate change risk and resilience, income inequality and ability to implement governmental policies. In constructing the Fund’s portfolio, GMO considers a number of factors, including the trade-off among forecasted returns, risk, transaction costs, and liquidity. The Fund may invest in securities of companies of any market capitalization. At times, the Fund may have substantial exposure to a single asset class, industry, sector, country, region, issuer, or currency or companies with similar market capitalizations. The factors GMO considers and investment methods GMO uses can change over time.

 

As an alternative to investing directly in equities, the Fund may invest in exchange-traded and over-the-counter (OTC) derivatives and exchange-traded funds (ETFs). The Fund also may invest in derivatives and ETFs in an attempt to obtain or adjust elements of its long or short investment exposure and as a substitute for securities lending. Derivatives used may include options, futures, forward currency contracts, swap contracts, and reverse repurchase agreements. The Fund’s foreign currency exposure may differ from the currency exposure represented by its equity investments. GMO typically seeks to limit the carbon footprint of the Fund’s portfolio to no more than 50% of that of the Fund’s benchmark. In addition, the Fund may lend its portfolio securities.

 

The Fund also may invest in fixed income securities of any maturity or credit quality (including below investment grade securities (commonly referred to as “high yield” or “junk bonds”)). The Fund also may invest in U.S. Treasury Fund, in money market funds unaffiliated with GMO, and directly in the types of investments typically held by money market funds.
Risk [Heading] rr_RiskHeading Principal risks of investing in the Fund
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

The value of the Fund’s shares changes with the value of the Fund’s investments. Many factors can affect this value, and you may lose money by investing in the Fund. The Fund is a non-diversified investment company under the Investment Company Act of 1940, as amended, and therefore a decline in the market price of a particular security held by the Fund may affect the Fund’s performance more than if the Fund were a diversified investment company. The principal risks of investing in the Fund are summarized below. For a more complete discussion

 

of these risks, see “Additional Information about the Funds’ Investment Strategies, Risks, and Expenses” and “Description of Principal Risks.”

 

•Market Risk – Equities – The market price of an equity may decline due to factors affecting the issuer or its industry or the economy and equity markets generally. If the Fund purchases an equity for less than its fundamental fair (or intrinsic) value as assessed by GMO and GMO’s assessment proves to be incorrect, the Fund runs the risk that the market price of the equity will not appreciate or will decline. The Fund also may purchase equities that typically trade at higher multiples of current earnings than other securities, and the market prices of these equities often are more sensitive to changes in future earnings expectations than the market prices of equities trading at lower multiples. Declines in stock market prices generally are likely to reduce the net asset value of the Fund’s shares.

 

•Non-U.S. Investment Risk – The market prices of many non-U.S. securities (particularly of companies tied economically to emerging countries) fluctuate more than those of U.S. securities. Many non-U.S. securities markets (particularly emerging markets) are less stable, smaller, less liquid, and less regulated than U.S. securities markets, and the cost of trading in those markets often is higher than in U.S. securities markets. In addition, issuers of non-U.S. securities (particularly those tied economically to emerging countries) often are not subject to as much regulation as U.S. issuers, and the reporting, recordkeeping, accounting, custody, and auditing standards to which those issuers are subject often are not as rigorous as U.S. standards. In addition, the Fund may be subject to non-U.S. taxes, potentially on a retroactive basis, on (i) capital gains it realizes or dividends, interest, or other amounts it realizes or accrues in respect of non-U.S. investments; (ii) transactions in those investments; and (iii) repatriation of proceeds generated from the sale or other disposition of those investments. Also, the Fund needs a license to invest directly in securities traded in many non-U.S. securities markets, and the Fund is subject to the risk that its license is terminated or suspended. In some non-U.S. securities markets, prevailing custody and trade settlement practices (e.g., the requirement to pay for securities prior to receipt) expose the Fund to credit and other risks. Further, adverse changes in investment regulations, capital requirements or exchange controls could adversely affect the value of the Fund’s investments. These and other risks (e.g., nationalization, expropriation or other confiscation of assets of non-U.S. issuers, difficulties enforcing legal judgments or contractual rights and geopolitical risks) tend to be higher for investments in the securities of companies tied economically to emerging countries. The economies of emerging countries often depend predominantly on only a few industries or revenues from particular commodities, and often are more volatile than the economies of developed countries.

 

•Currency Risk – Fluctuations in exchange rates can adversely affect the market value of the Fund’s foreign currency holdings and investments denominated in foreign currencies.

 

•Management and Operational Risk – The Fund runs the risk that GMO’s investment techniques will fail to produce desired results. The Fund also runs the risk that GMO’s assessment of an investment (including a security’s fundamental fair (or intrinsic) value) is wrong or that deficiencies in GMO’s or another service provider’s internal systems or controls will cause losses for the Fund or impair Fund operations.

 

•Illiquidity Risk – Low trading volume, lack of a market maker, large position size, or legal restrictions may limit or prevent the Fund or an underlying fund from selling particular securities or closing derivative positions at desirable prices.

 

•Market Disruption and Geopolitical Risk – Geopolitical and other events (e.g., wars, pandemics, sanctions, terrorism) may disrupt securities markets and adversely affect particular economies and markets as well as global economies and markets. Those events, as well as other changes in non-U.S. and U.S. economic and political conditions, could exacerbate other risks or otherwise reduce the value of the Fund’s investments.

 

•Focused Investment Risk – The Fund’s investments in companies whose prospects are linked to the internal development and growth of a particular emerging market country create additional risk because the performance of those companies is likely to be highly correlated. In addition, Investments focused in countries, regions, asset classes, sectors, industries, currencies, or issuers that are subject to the same or similar risk factors and investments whose market prices are closely correlated are subject to higher overall risk than investments that are more diversified or whose market prices are not as closely correlated.

 

•Derivatives and Short Sales Risk – The use of derivatives involves the risk that their value may not change as expected relative to changes in the value of the underlying assets, pools of assets, rates, currencies or indices. Derivatives also present other risks, including market risk, illiquidity risk, currency risk, credit risk, and counterparty risk. The market price of an option is affected by many factors, including changes in the market prices or dividend rates of underlying securities (or in the case of indices, the securities in such indices); the time remaining before expiration; changes in interest rates or exchange rates; and changes in the actual or perceived volatility of the relevant index or underlying securities. The Fund may create short investment exposure by selling securities short or by taking a derivative position in which the value of the derivative moves in the opposite direction from the price of an underlying asset, pool of assets, rate, currency or index. The risks of loss associated with derivatives that provide short investment exposure and short sales of securities are theoretically unlimited.

 

•Fund of Funds Risk – The Fund is indirectly exposed to all of the risks of an investment in the underlying funds in which it invests (including ETFs), including the risk that those underlying funds will not perform as expected. Because the Fund bears the fees and expenses of the underlying funds in which it invests, an increase in fees and expenses of an underlying fund or a reallocation of the Fund’s investments to underlying funds with higher fees or expenses will increase the Fund’s total expenses.

 

•Smaller Company Risk – Smaller companies may have limited product lines, markets, or financial resources, lack the competitive strength of larger companies, have less experienced managers or depend on a few key employees. The securities of companies with smaller market capitalizations often are less widely held and trade less frequently and in lesser quantities, and their market prices often fluctuate more, than the securities of companies with larger market capitalizations.

 

•Counterparty Risk – The Fund runs the risk that the counterparty to a derivatives contract, a clearing member used by the Fund to hold a cleared derivatives contract, or a borrower of the Fund’s securities is unable or unwilling to make timely settlement payments, return the Fund’s collateral or otherwise honor its obligations.

 

•Leveraging Risk – The use of derivatives, short sales and securities lending can create leverage. Leverage increases the Fund’s losses when the value of its investments (including derivatives) declines. In addition, the Fund’s portfolio will be leveraged if it exercises its right to delay payment on a redemption, and losses will result if the value of the Fund’s assets declines between the time a redemption request is deemed to be received by the Fund and the time the Fund liquidates assets to meet that request.

 

•Large Shareholder Risk – To the extent that a large number of shares of the Fund is held by a single shareholder (e.g., an institutional investor or another GMO Fund) or a group of shareholders with a common investment strategy (e.g., GMO asset allocation accounts), the Fund is subject to the risk that a redemption by those shareholders of all or a large portion of their Fund shares will require the Fund to sell securities at disadvantageous prices, disrupt the Fund’s operations, or force the Fund’s liquidation.
Risk Lose Money [Text] rr_RiskLoseMoney Many factors can affect this value, and you may lose money by investing in the Fund.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus The Fund is a non-diversified investment company under the Investment Company Act of 1940, as amended, and therefore a decline in the market price of a particular security held by the Fund may affect the Fund’s performance more than if the Fund were a diversified investment company.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s annual total returns from year to year for the periods indicated and by comparing the Fund’s average annual total returns for different calendar periods with those of a broad-based index. Share classes not shown would have substantially similar annual returns to those below because all share classes invest in the same portfolio of securities. Annual returns vary among share classes to the extent that they bear different expenses. Share classes that bear higher expenses than the share classes shown below would have lower returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant if you are tax-exempt or if you hold your Fund shares through tax-advantaged arrangements (such as a 401(k) plan or individual retirement account). After-tax returns are shown for Class II shares only; after-tax returns for other classes will vary. Updated performance information for the Fund is available at www.gmo.com. Past performance (before and after taxes) is not an indication of future performance.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund’s annual total returns from year to year for the periods indicated and by comparing the Fund’s average annual total returns for different calendar periods with those of a broad-based index.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.gmo.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not an indication of future performance.
Bar Chart [Heading] rr_BarChartHeading Annual Total Returns/Class II Shares*Years Ending December 31
Bar Chart Footnotes [Text Block] rr_BarChartFootnotesTextBlock

* The performance information (before and after taxes) for all periods prior to October 26, 2022 was achieved prior to the change in the Fund’s investment objective and principal investment strategies, effective October 26, 2022.

Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarter: 16.35% (2Q2020)
Lowest Quarter: -20.29% (1Q2020)
Year-to-Date (as of 3/31/22): -9.77%
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-Date
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Mar. 31, 2022
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (9.77%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.35%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (20.29%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns Periods Ending December 31, 2021
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (returns reflect no deduction for fees or expenses, but are net of withholding tax on dividend reinvestments)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on your tax situation and may differ from those shown. After-tax returns shown are not relevant if you are tax-exempt or if you hold your Fund shares through tax-advantaged arrangements (such as a 401(k) plan or individual retirement account).
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown for Class II shares only; after-tax returns for other classes will vary.
GMO Emerging Domestic Opportunities Fund | Class II  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [1]
Other expenses rr_OtherExpensesOverAssets 0.11%
Acquired fund fees and expenses (underlying fund expenses) rr_AcquiredFundFeesAndExpensesOverAssets 0.06% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.94%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.13%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.81%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 507
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,143
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 83
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 287
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 507
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,143
Annual Return 2012 rr_AnnualReturn2012 25.08%
Annual Return 2013 rr_AnnualReturn2013 3.40%
Annual Return 2014 rr_AnnualReturn2014 (0.69%)
Annual Return 2015 rr_AnnualReturn2015 (8.30%)
Annual Return 2016 rr_AnnualReturn2016 4.04%
Annual Return 2017 rr_AnnualReturn2017 37.47%
Annual Return 2018 rr_AnnualReturn2018 (20.41%)
Annual Return 2019 rr_AnnualReturn2019 19.33%
Annual Return 2020 rr_AnnualReturn2020 18.23%
Annual Return 2021 rr_AnnualReturn2021 (5.21%)
1 Year rr_AverageAnnualReturnYear01 (5.21%) [3]
5 Years rr_AverageAnnualReturnYear05 7.91% [3]
10 Years rr_AverageAnnualReturnYear10 6.01% [3]
Since Inception rr_AverageAnnualReturnSinceInception 4.87% [3]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 24, 2011 [3]
GMO Emerging Domestic Opportunities Fund | Class II | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (6.42%) [3]
5 Years rr_AverageAnnualReturnYear05 6.65% [3]
10 Years rr_AverageAnnualReturnYear10 5.14% [3]
Since Inception rr_AverageAnnualReturnSinceInception 4.06% [3]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 24, 2011 [3]
GMO Emerging Domestic Opportunities Fund | Class II | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (1.32%) [3]
5 Years rr_AverageAnnualReturnYear05 6.19% [3]
10 Years rr_AverageAnnualReturnYear10 4.79% [3]
Since Inception rr_AverageAnnualReturnSinceInception 3.85% [3]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 24, 2011 [3]
GMO Emerging Domestic Opportunities Fund | Class II | MSCI Emerging Markets Index (returns reflect no deduction for fees or expenses, but are net of withholding tax on dividend reinvestments)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.54%) [3],[4]
5 Years rr_AverageAnnualReturnYear05 9.88% [3],[4]
10 Years rr_AverageAnnualReturnYear10 5.49% [3],[4]
Since Inception rr_AverageAnnualReturnSinceInception 3.23% [3],[4]
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 24, 2011 [3],[4]
GMO Emerging Domestic Opportunities Fund | Class III  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.70% [1]
Other expenses rr_OtherExpensesOverAssets 0.11%
Acquired fund fees and expenses (underlying fund expenses) rr_AcquiredFundFeesAndExpensesOverAssets 0.06% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.87%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.11%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.76%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 78
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 267
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 471
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,062
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 78
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 267
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 471
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,062
GMO Emerging Domestic Opportunities Fund | Class IV  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.655% [1]
Other expenses rr_OtherExpensesOverAssets 0.11%
Acquired fund fees and expenses (underlying fund expenses) rr_AcquiredFundFeesAndExpensesOverAssets 0.06% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.83%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.12%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.71%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 73
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 253
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 449
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,014
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 73
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 253
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 449
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,014
GMO Emerging Domestic Opportunities Fund | Class V  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.635% [1]
Other expenses rr_OtherExpensesOverAssets 0.10%
Acquired fund fees and expenses (underlying fund expenses) rr_AcquiredFundFeesAndExpensesOverAssets 0.06% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.80%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.10%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 72
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 245
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 434
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 980
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 72
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 245
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 434
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 980
1 Year rr_AverageAnnualReturnYear01 (5.05%) [3]
5 Years rr_AverageAnnualReturnYear05 8.07% [3]
10 Years rr_AverageAnnualReturnYear10 [3]
Since Inception rr_AverageAnnualReturnSinceInception 4.20% [3]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 29, 2013 [3]
GMO Emerging Domestic Opportunities Fund | Class V | MSCI Emerging Markets Index (returns reflect no deduction for fees or expenses, but are net of withholding tax on dividend reinvestments)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.54%) [3],[4]
5 Years rr_AverageAnnualReturnYear05 9.88% [3],[4]
10 Years rr_AverageAnnualReturnYear10 [3],[4]
Since Inception rr_AverageAnnualReturnSinceInception 4.80% [3],[4]
Inception Date rr_AverageAnnualReturnInceptionDate Nov. 29, 2013 [3],[4]
GMO Emerging Domestic Opportunities Fund | Class VI  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.605% [1]
Other expenses rr_OtherExpensesOverAssets 0.10%
Acquired fund fees and expenses (underlying fund expenses) rr_AcquiredFundFeesAndExpensesOverAssets 0.06% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.77%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.10%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.67%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 68
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 236
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 418
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 945
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 68
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 236
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 418
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 945
GMO Emerging Domestic Opportunities Fund | Class R6  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [1]
Other expenses rr_OtherExpensesOverAssets 0.11%
Acquired fund fees and expenses (underlying fund expenses) rr_AcquiredFundFeesAndExpensesOverAssets 0.06% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 0.94%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.13%) [1]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.81%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 83
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 507
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,143
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 83
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 287
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 507
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,143
GMO Emerging Domestic Opportunities Fund | Class I  
Risk/Return: rr_RiskReturnAbstract  
Management fee rr_ManagementFeesOverAssets 0.77% [1]
Other expenses rr_OtherExpensesOverAssets 0.21% [5]
Acquired fund fees and expenses (underlying fund expenses) rr_AcquiredFundFeesAndExpensesOverAssets 0.06% [2]
Total annual fund operating expenses rr_ExpensesOverAssets 1.04%
Expense reimbursement/waiver rr_FeeWaiverOrReimbursementOverAssets (0.13%) [1],[5]
Total annual fund operating expenses after expense reimbursement/waiver rr_NetExpensesOverAssets 0.91%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 93
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 318
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 561
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,259
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 93
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 318
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 561
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,259
[1] Includes both management fee of 0.55% and class-specific shareholder service fee, if any, for each class of shares. For additional information about the shareholder service fee applicable to each class of shares of the Fund, please see the table included in the section of the Prospectus entitled “Multiple Classes and Eligibility.” Grantham, Mayo, Van Otterloo & Co. LLC (“GMO”) has contractually agreed to waive its fees with respect to and/or reimburse the Fund to the extent that the Fund’s total annual fund operating expenses (after applying all other contractual and voluntary expense limitation arrangements in effect at the time) exceed the following amounts for each class of shares, in each case representing the average daily net assets for the indicated class of shares: 0.75% for Class II shares; 0.70% for Class III shares; 0.65% for Class IV shares; 0.635% for Class V shares; 0.605% for Class VI shares; 0.75% for Class R6 shares; and 0.75% for Class I shares (each, an “Expense Cap”). Fees and expenses of the “non-interested” Trustees and legal counsel to the “non-interested” Trustees, investment-related costs (such as brokerage commissions, interest, and acquired fund fees and expenses), payments out of assets attributable to Class I shares for sub-transfer agency, recordkeeping and other administrative services provided by financial intermediaries, taxes, litigation and indemnification expenses, judgments, and other extraordinary or non-recurring expenses not incurred in the ordinary course of the Fund’s business (collectively, “Excluded Expenses”), are excluded from the Expense Cap. GMO is permitted to recover from the Fund, on a class-by-class basis, expenses it has borne or reimbursed pursuant to an Expense Cap (whether through reduction of its fees or otherwise) to the extent that the Fund’s total annual fund operating expenses (excluding Excluded Expenses) later fall below that Expense Cap or any lower expense limit in effect when GMO seeks to recover the expenses. The Fund, however, is not obligated to pay any such amount more than three years after GMO bore or reimbursed an expense. Any such recovery will not cause the Fund to exceed the Expense Caps set forth above or any lower expense limits as is in effect at the time GMO seeks to recover expenses. GMO also has contractually agreed to waive or reduce the Fund’s management fees and shareholder service fees to the extent necessary to offset the management fees and shareholder service fees paid to GMO that are directly or indirectly borne by the Fund or a class of shares of the Fund as a result of the Fund’s direct or indirect investments in other series of GMO Trust (“GMO Funds”). Management fees and shareholder service fees will not be waived below zero. These reimbursements and waivers will continue through at least October 26, 2023 and may not be terminated prior to this date without the action or consent of the Trust’s Board of Trustees.
[2] Consists of approximately 0.05% in underlying fund fees and expenses and 0.01% in commissions paid to brokers by the Fund for executing transactions in unaffiliated underlying funds.
[3] The performance information (before and after taxes) for all periods prior to October 26, 2022 was achieved prior to the change in the Fund’s investment objective and principal investment strategies, effective October 26, 2022.
[4] MSCI data may not be reproduced or used for any other purpose. MSCI provides no warranties, has not prepared or approved this report, and has no liability hereunder.
[5] Includes estimate of payments for sub-transfer agency, recordkeeping and other administrative services for Class I’s initial fiscal year. GMO has contractually agreed to waive its fees with respect to and/or reimburse Class I shares to the extent that amounts paid by the Fund out of the net assets attributable to Class I shares for sub-transfer agency, recordkeeping and other administrative services provided by financial intermediaries for the benefit of Class I shareholders exceed 0.10% of the average daily net assets attributable to Class I shares. This reimbursement will continue through at least October 26, 2023 and may not be terminated prior to this date without the action or consent of the Trust’s Board of Trustees.