v3.25.2
Shareholder Report
6 Months Ended
Jul. 31, 2025
USD ($)
Holdings
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Tidal Trust III
Entity Central Index Key 0001722388
Entity Investment Company Type N-1A
Document Period End Date Jul. 31, 2025
Intech S&P Large Cap Diversified Alpha ETF  
Shareholder Report [Line Items]  
Fund Name Intech S&P Large Cap Diversified Alpha ETF
Class Name Intech S&P Large Cap Diversified Alpha ETF
Trading Symbol LGDX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Intech S&P Large Cap Diversified Alpha ETF (the "Fund") for the period February 27, 2025 (the Fund's “Inception”) to July 31, 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://www.IntechETFs.com. You can also request this information by contacting us at (833) 933-2083 or by writing to the Intech S&P Large Cap Diversified Alpha ETF, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701.
Additional Information Phone Number (833) 933-2083
Additional Information Website https://www.IntechETFs.com
Expenses [Text Block]

What were the Fund costs since inception?
(based on a hypothetical $10,000 investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Intech S&P Large Cap Diversified Alpha ETF
$11
0.25%
Expenses Paid, Amount $ 11
Expense Ratio, Percent 0.25%
Material Change Date Feb. 27, 2025
Net Assets $ 98,916,000
Holdings Count | Holdings 240
Advisory Fees Paid, Amount $ 79,476
Investment Company, Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

(as of July 31, 2025)

 

 

Fund Size (Thousands)
$98,916
Number of Holdings
240
Total Advisory Fee
$79,476
Portfolio Turnover Rate
43%
Holdings [Text Block]

Sector Type - Investments
(% of Total Net Assets)

Sector
%
Technology
0.307
Financials
0.136
Communications
0.127
Consumer Discretionary
0.117
Health Care
0.085
Industrials
0.053
Consumer Staples
0.051
Energy
0.036
Utilities
0.036
Real Estate
0.027
Materials
0.021
Cash & Other
0.004
bar

 

Largest Holdings [Text Block]

What did the Fund invest in?

(as of July 31, 2025)

Top Ten Holdings
(% of Total Net Assets)
NVIDIA Corp.
7.9
Microsoft Corp.
5.3
Meta Platforms, Inc.
4.8
Amazon.com, Inc.
4.8
Apple, Inc.
4.4
Broadcom, Inc.
3.2
Netflix, Inc.
2.4
Tesla, Inc.
2.1
Adobe, Inc.
1.9
Progressive Corp.
1.7

 

Material Fund Change [Text Block]

How Has the Fund Changed?

Effective February 27, 2025, the Intech U.S. Enhanced Plus Fund LLC reorganized into the Intech S&P Large Cap Diversified Alpha ETF.For financial reporting purposes, assets received, and shares issued by the LGDX ETF were recorded at fair value; however, the cost basis of the investments received from the Predecessor Fund were carried forward to align ongoing reporting of the Acquiring Fund realized and unrealized gains and losses with amounts distributable to shareholders for tax purposes.

Material Fund Change Name [Text Block] Effective February 27, 2025, the Intech U.S. Enhanced Plus Fund LLC reorganized into the Intech S&P Large Cap Diversified Alpha ETF.For financial reporting purposes, assets received, and shares issued by the LGDX ETF were recorded at fair value; however, the cost basis of the investments received from the Predecessor Fund were carried forward to align ongoing reporting of the Acquiring Fund realized and unrealized gains and losses with amounts distributable to shareholders for tax purposes.
Accountant Change Statement [Text Block]

Changes in and Disagreements with Accountants

In connection with the reorganization on February 27, 2025, the Tidal Trust III Audit Committee approved the decision to appoint Tait, Weller & Baker as the Fund's independent registered public accounting firm.

Intech S&P Small-Mid Cap Diversified Alpha ETF  
Shareholder Report [Line Items]  
Fund Name Intech S&P Small-Mid Cap Diversified Alpha ETF
Class Name Intech S&P Small-Mid Cap Diversified Alpha ETF
Trading Symbol SMDX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Intech S&P Small-Mid Cap Diversified Alpha ETF (the "Fund") for the period February 27, 2025 (the Fund's "Inception") to July 31, 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://www.IntechETFs.com. You can also request this information by contacting us at (833) 933-2083 or by writing to the Intech S&P Small-Mid Cap Diversified Alpha ETF, c/o U.S. Bank Global Fund Services, P.O. Box 701, Milwaukee, Wisconsin 53201-0701.
Additional Information Phone Number (833) 933-2083
Additional Information Website https://www.IntechETFs.com
Expenses [Text Block]

What were the Fund costs since inception?
(based on a hypothetical $10,000 investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Intech S&P Small-Mid Cap Diversified Alpha ETF
$15
0.35%

 

Expenses Paid, Amount $ 15
Expense Ratio, Percent 0.35%
Net Assets $ 81,235,000
Holdings Count | Holdings 549
Advisory Fees Paid, Amount $ 89,331
Investment Company, Portfolio Turnover 61.00%
Additional Fund Statistics [Text Block]

Key Fund Statistics

(as of July 31, 2025)

 

 

Fund Size (Thousands)
$81,235
Number of Holdings
549
Total Advisory Fee
$89,331
Portfolio Turnover Rate
61%
Holdings [Text Block]

Sector Type - Investments
(% of Total Net Assets)

Sector
%
Financials
0.186
Industrials
0.183
Consumer Discretionary
0.154
Technology
0.128
Health Care
0.094
Consumer Staples
0.06
Real Estate
0.059
Materials
0.059
Energy
0.049
Communications
0.017
Utilities
0.007
Cash & Other
0.004
bar

 

Largest Holdings [Text Block]

What did the Fund invest in?

(as of July 31, 2025)

Top Ten Holdings
(% of Total Net Assets)
EMCOR Group, Inc.
2.5
Interactive Brokers Group, Inc.
1.9
Tenet Healthcare, Corp.
1.3
Jones Lang LaSalle, Inc.
1.3
Sprouts Farmers Market, Inc.
1.2
Jefferies Financial Group, Inc.
1.1
DT Midstream, Inc.
1.1
Universal Display Corp.
1.0
Exelixis, Inc.
1.0
Antero Resources Corp.
0.9