v3.25.2
Shareholder Report
6 Months Ended
Apr. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Northern Lights Fund Trust IV
Entity Central Index Key 0001644419
Entity Investment Company Type N-1A
Document Period End Date Apr. 30, 2025
C000237474  
Shareholder Report [Line Items]  
Fund Name Main BuyWrite ETF
Trading Symbol BUYW
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Main BuyWrite ETF for the period of November 1, 2024 to April 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://www.mainmgtetfs.com/buyw/. You can also request this information by contacting us at 1-866-383-9778
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred during the reporting period.
Additional Information Phone Number 1-866-383-9778
Additional Information Website https://www.mainmgtetfs.com/buyw/
Expenses [Text Block]

What were the Fund’s costs for the last six months?

(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
Main BuyWrite ETF
$49
0.98%Footnote Reference*

* Annualized

Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.98%
AssetsNet $ 661,453,655
Holdings Count | Holding 15
Advisory Fees Paid, Amount $ 2,606,189
InvestmentCompanyPortfolioTurnover 0.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

Net Assets
$661,453,655
Number of Portfolio Holdings
15
Advisory Fee (net of waivers)
$2,606,189
Portfolio Turnover
0%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Value
Value
Exchange-Traded Funds
96.2%
Money Market Funds
3.8%

Asset Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-0.5%
Equity Option
-10.0%
Index Option
-0.0%
Money Market Funds
4.3%
Equity
106.2%

Top 10 Holdings (% of net assets)

Holding Name
% of Net Assets
iShares Core S&P 500 ETF
52.7%
VanEck Semiconductor ETF
12.3%
Invesco Nasdaq 100 ETF
11.6%
Utilities Select Sector SPDR Fund
10.5%
Communication Services Select Sector SPDR Fund
10.1%
Consumer Discretionary Select Sector SPDR Fund
9.0%
State Street Institutional Money Market Fund, Premier Class
4.3%
S&P 500 Index, 12/19/25 5600.0 Call
-0.0%
Consumer Discretionary Select Sector SPDR Fund, 12/19/25 200.0 Call
-0.8%
Communication Services Select Sector SPDR Fund, 06/20/25 88.0 Call
-1.0%