Shareholder Report |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2025
USD ($)
$ / shares
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Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||
Document Type | N-CSRS | |||||||||||||||||||||||||||||||||||||||||||||||
Amendment Flag | false | |||||||||||||||||||||||||||||||||||||||||||||||
Registrant Name | Monetta Trust | |||||||||||||||||||||||||||||||||||||||||||||||
Entity Central Index Key | 0000894240 | |||||||||||||||||||||||||||||||||||||||||||||||
Entity Investment Company Type | N-1A | |||||||||||||||||||||||||||||||||||||||||||||||
Document Period End Date | Jun. 30, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||
Monetta Fund | ||||||||||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||
Fund Name | Monetta Fund | |||||||||||||||||||||||||||||||||||||||||||||||
Class Name | Monetta Fund | |||||||||||||||||||||||||||||||||||||||||||||||
Trading Symbol | MONTX | |||||||||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Monetta Fund for the period of January 1, 2025, to June 30, 2025. | |||||||||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://monetta.com/resources/. You can also request this information by contacting us at 1-800-MONETTA. | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-800-MONETTA | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://monetta.com/resources/ | |||||||||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
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Expenses Paid, Amount | $ 71 | |||||||||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 1.33% | |||||||||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM THE LAST SIX MONTHS AND WHAT AFFECTED ITS PERFORMANCE? During the first half of 2025, the stock market, as measured by the S&P 500 Index, was up 6.20% to close at a record level. Yet its path to new heights was anything but smooth. The market experienced an “April swoon,” declining almost 10%. Investors’ persistent recession worries were amplified by escalating trade tensions and geopolitical uncertainties. Big Tech once again came to the rescue fueled by a rebound in AI-focused stocks and renewed interest in Bitcoin, which surged to more than $100,000 in value. The Monetta Fund posted a strong gain of 16.59% for the first half of 2025. This compares favorably to the 6.20% return of its benchmark, the S&P 500 Index. The Fund benefited from its overweight in the large technology sector and investments in the crypto market, specifically Robinhood, Coinbase and Interactive Brokers Group. Top contributors to Fund performance included Palantir Technologies, Spotify, Netflix and Crowdstrike—up 80.25%, 71.52%, 50.24% and 48.85%, respectively, for the six-month period ending June 30, 2025. Detracting from fund performance were Apple, Alphabet and Dutch Brothers, which declined 18.07%, 6.85% and 10.70%, respectively, during the period. New purchases included Dollar Tree, Advanced Micro Devices and Howmet Aerospace.
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | |||||||||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | ![]() |
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Average Annual Return [Table Text Block] | ANNUAL AVERAGE TOTAL RETURN (%)
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||
Updated Performance Information Location [Text Block] | Visit https://monetta.com/performance/ for more recent performance information. Visit https://monetta.com/resources/ for more recent information.
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Net Assets | $ 97,383,920 | |||||||||||||||||||||||||||||||||||||||||||||||
Holdings Count | $ / shares | 52 | |||||||||||||||||||||||||||||||||||||||||||||||
Investment Company Portfolio Turnover | 28.00% | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2025)
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Holdings [Text Block] |
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Updated Prospectus Web Address | https://monetta.com/resources/ | |||||||||||||||||||||||||||||||||||||||||||||||
Monetta Young Investor Growth Fund | ||||||||||||||||||||||||||||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||
Fund Name | Monetta Young Investor Growth Fund | |||||||||||||||||||||||||||||||||||||||||||||||
Class Name | Monetta Young Investor Growth Fund | |||||||||||||||||||||||||||||||||||||||||||||||
Trading Symbol | MYIFX | |||||||||||||||||||||||||||||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about the Monetta Young Investor Growth Fund for the period of January 1, 2025, to June 30, 2025. | |||||||||||||||||||||||||||||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at https://monetta.com/resources/. You can also request this information by contacting us at 1-800-MONETTA. | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Information Phone Number | 1-800-MONETTA | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Information Website | https://monetta.com/resources/ | |||||||||||||||||||||||||||||||||||||||||||||||
Expenses [Text Block] | WHAT WERE THE FUND COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
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[2] | ||||||||||||||||||||||||||||||||||||||||||||||
Expenses Paid, Amount | $ 75 | |||||||||||||||||||||||||||||||||||||||||||||||
Expense Ratio, Percent | 1.47% | |||||||||||||||||||||||||||||||||||||||||||||||
Factors Affecting Performance [Text Block] | HOW DID THE FUND PERFORM THE LAST SIX MONTHS AND WHAT AFFECTED ITS PERFORMANCE? During the first half of 2025, the stock market, as measured by the S&P 500 Index, was up 6.20% to close at a record level. Yet its path to new heights was anything but smooth. The market experienced an “April swoon,” declining almost 10%. Investors’ persistent recession worries were amplified by escalating trade tensions and geopolitical uncertainties. Big Tech once again came to the rescue fueled by a rebound in AI-focused stocks and renewed interest in Bitcoin, which surged to more than $100,000 in value. The Monetta Young Investor Growth Fund posted a gain of 5.74% for the first half of 2025, lagging the return of its benchmark, the S&P 500 Index, by 0.46 percentage points. The Fund benefited from its holdings in Spotify, Netflix and Meta, which rose 71.52%, 50.24% and 26.06%, respectively, for the six-month period ending June 30, 2025. Detracting from the Fund’s performance were Amazon, Apple and Alphabet, each of which underperformed the S&P 500 Index. New positions were initiated in Boeing, Uber and Telsa, while positions in Apple, Alphabet and Microsoft were trimmed.
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Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of how the Fund will perform in the future. | |||||||||||||||||||||||||||||||||||||||||||||||
Line Graph [Table Text Block] | ![]() |
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Average Annual Return [Table Text Block] | ANNUAL AVERAGE TOTAL RETURN (%)
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No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||
Updated Performance Information Location [Text Block] | Visit https://monetta.com/performance/ for more recent performance information. Visit https://monetta.com/resources/ for more recent information.
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Net Assets | $ 41,842,070 | |||||||||||||||||||||||||||||||||||||||||||||||
Holdings Count | $ / shares | 19 | |||||||||||||||||||||||||||||||||||||||||||||||
Investment Company Portfolio Turnover | 2.00% | |||||||||||||||||||||||||||||||||||||||||||||||
Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2025)
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Holdings [Text Block] |
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Updated Prospectus Web Address | https://monetta.com/resources/ | |||||||||||||||||||||||||||||||||||||||||||||||
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