v3.26.1
Shareholder Report
12 Months Ended
May 31, 2026
USD ($)
Holdings
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Starboard Investment Trust
Entity Central Index Key 0001464413
Entity Investment Company Type N-1A
Document Period End Date May 31, 2026
Shareholder Report Annual or Semi-Annual annual shareholder report
Adaptive Alpha Opportunities ETF  
Shareholder Report [Line Items]  
Fund Name Adaptive Alpha Opportunities ETF
Class Name Adaptive Alpha Opportunities ETF
Trading Symbol AGOX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Adaptive Alpha Opportunities ETF (the "Fund") for the period June 1, 2025 to May 31, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://etfpages.com/AGOX. You can also request this information by contacting us at (800) 773-3863.
Additional Information Phone Number (800) 773-3863
Additional Information Website https://etfpages.com/AGOX
Expenses [Text Block]

What were the Fund costs for the past year?

(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
Adaptive Alpha Opportunities ETF
$140
1.24%

 

Expenses Paid, Amount $ 140
Expense Ratio, Percent 1.24%
Factors Affecting Performance [Text Block]

How did the Fund perform last year and what affected its performance?

For the fiscal year ended May 31, 2026, the Fund returned 26.69%. The Fund underperformed the MSCI ACWI Index and outperformed the Morningstar Moderate Aggressive Target Risk Index, which returned 30.80% and 22.67%, respectively, for the same period.

Factors that Impacted the Fund's Performance

Adaptive Alpha Opportunities ETF remains largely diversified across countries and sectors. There are periods where AGOX uses its’ ‘global-go-anywhere’ classification to take advantage of a focused approach to a sector or group of sectors. During the 1 year period ending on 5/31/2026, AGOX held modest allocations towards tech and semiconductor related positions, as well as Communication Services, Healthcare, and Infrastructure ETFs.

The main detractors from performance include:

• Cloudflare Inc (NET) had a rescaled portfolio weight of 0.55% and detracted (2.60%) during the period.

• Strategy Inc Class A (MSTR) had a rescaled portfolio weight of 0.37% and detracted (1.68%) during the period.

• Coinbase Global Inc (COIN) had a rescaled portfolio weight of 0.39% and detracted (1.22%) during the period.

The main contributors to performance include:

• VanEck Semiconductor ETF (SMH) had a rescaled portfolio weight of 5.43% and contributed 7.79% during the period.

• Invesco QQQ Trust (QQQ) had a rescaled portfolio weight of 7.89% and contributed 4.52% during the period.

• State Street Technology Select Sector SPDR ETF (XLK) had a rescaled portfolio weight of 2.51% and contributed 4.46% during the period.

 

Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's future performance.
Line Graph [Table Text Block]

Cumulative Performance

From June 1, 2025 through May 31, 2026

Initial Investment of $10,000

Date
Adaptive Alpha Opportunities ETF ($37,218)
MSCI ACWI Index ($35,027)
Morningstar Moderate Aggressive Target Risk Index ($26,482)
5/31/2016
10000
10000
10000
5/31/2017
12353
11818
11491
5/31/2018
14822
13286
12668
5/31/2019
14175
13186
12793
5/31/2020
16674
13974
13364
5/31/2021
24346
19901
18000
5/31/2022
22386
18642
16669
5/31/2023
22226
18898
16460
5/31/2024
26674
23458
19282
5/31/2025
29377
26780
21587
5/31/2026
37217
35027
26482
line

 

Average Annual Return [Table Text Block]

Average Annual Total Returns

(as of May 31, 2026 )

1 Year
5 Year
10 Year
Since
Inception
(09/20/12)
Adaptive Alpha Opportunities ETF
26.69%
8.86%
14.04%
11.93%
MSCI ACWI Index
30.80%
11.96%
13.35%
11.81%
Morningstar Moderate Aggressive
Target Risk Index
22.67%
8.02%
10.23%
9.37%
Performance Inception Date Sep. 20, 2012
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://etfpages.com/AGOX for more recent performance information.
Net Assets $ 385,961,450
Holdings Count | Holdings 330
Advisory Fees Paid, Amount $ 3,525,129
Investment Company, Portfolio Turnover 2621.38%
Additional Fund Statistics [Text Block]

Key Fund Statistics

(as of May 31, 2026 )

Net Assets
$385,961,450
Number of Holdings
330
Net Advisory Fee
$3,525,129
Portfolio Turnover Rate
2,621.38%


Holdings [Text Block]

What did the Fund invest in?

(as of May 31, 2026 )

Sector Breakdown (% of Total Net Assets)

sector
%
Technology
8.0%
Financials
7.9%
Industrials
7.8%
Global Funds
6.1%
Health Care
5.8%
Communications
4.6%
Commodities
3.4%
Real Estate
1.4%
Aerospace & Defense
1.0%
Materials
0.6%
bar
Largest Holdings [Text Block]
Top Ten Holdings
(% of Total Net Assets)
Fidelity Government Portfolio
26.8
Invesco QQQ Trust Series 1
6.2
State Street Health Care Select Sector SPDR ETF
5.8
State Street Technology Select Sector SPDR ETF
5.2
State Street Communication Services
Select Sector SPDR ETF
4.6
Vanguard FTSE Emerging Markets ETF
4.6
Invesco QQQ Trust Series 1
4.4
Western Digital Corp
3.7
State Street SPDR S&P 500 ETF Trust
3.2
iShares Global Infrastructure ETF
2.9
Adaptive Hedged Multi-Asset Income ETF  
Shareholder Report [Line Items]  
Fund Name Adaptive Hedged Multi-Asset Income ETF
Class Name Adaptive Hedged Multi-Asset Income ETF
Trading Symbol AMAX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Adaptive Hedged Multi-Asset Income ETF (the "Fund") for the period June 1, 2025 to May 31, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://etfpages.com/AMAX. You can also request this information by contacting us at (800) 773-3863.
Additional Information Phone Number (800) 773-3863
Additional Information Website https://etfpages.com/AMAX
Expenses [Text Block]

What were the Fund costs for the past year?

(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
Adaptive Hedged Multi-Asset Income ETF
$123
1.15%

 

Expenses Paid, Amount $ 123
Expense Ratio, Percent 1.15%
Factors Affecting Performance [Text Block]

How did the Fund perform last year and what affected its performance?

For the fiscal year ended May 31, 2026, the Fund returned 13.08%. The Fund outperformed the Bloomberg Capital US Aggregate Bond Index, which returned 5.13% for the same period.

Factors that Impacted the Fund's Performance

Adaptive Hedged Multi Asset Income ETF (AMAX) maintained a Equities-Treasuries-Gold-Bitcoin four part portfolio. AMAX continued using bitcoin related ETFs and equities to generate covered call premium income for the fund, as well as fund the purchase of long protective puts.

The main detractors from performance include:

• YieldMax META Option Income Strategy ETF (FBY) had a rescaled portfolio weight of 2.14% and detracted (0.21%) during the period.

• YieldMax MSFT Option Income Strategy ETF (MSFO) had a rescaled portfolio weight of 2.31% and detracted (0.04%) during the period.

• Strategy Inc Class A (MSTR) had a rescaled portfolio weight of 19.57% and detracted (17.72%) during the period.

The main contributors to performance include:

• VanEck Gold Miners ETF (GDX) had a rescaled portfolio weight of 16.30% and contributed 9.49% during the period.

• Invesco QQQ Trust (QQQ) had a rescaled portfolio weight of 12.01% and contributed 3.69% during the period.

• State Street® SPDR® S&P 500® ETF (SPY) had a rescaled portfolio weight of 31.09% and contributed 8.63% during the period.

 

Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's future performance.
Line Graph [Table Text Block]

Cumulative Performance

From June 1, 2025 through May 31, 2026

Initial Investment of $10,000

Date
Adaptive Hedged Multi-Asset Income ETF ($14,386)
Bloomberg Capital US Aggregate Bond Index ($11,836)
5/31/2016
10000
10000
5/31/2017
10856
10157
5/31/2018
11065
10119
5/31/2019
11737
10767
5/31/2020
11547
11781
5/31/2021
12000
11733
5/31/2022
11095
10768
5/31/2023
10978
10537
5/31/2024
11966
10675
5/31/2025
12722
11258
5/31/2026
14416
11836
line

 

Average Annual Return [Table Text Block]

Average Annual Total Returns

(as of May 31, 2026 )

1 Year
5 Year
10 Year
Since
Inception
(10/02/09)
Adaptive Hedged Multi-Asset Income ETF
13.08%
3.69%
3.70%
3.01%
Bloomberg Capital US Aggregate
Bond Index
5.13%
0.17%
1.70%
2.58%
Performance Inception Date Oct. 02, 2009
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://etfpages.com/AMAX for more recent performance information.
Net Assets $ 67,771,624
Holdings Count | Holdings 25
Advisory Fees Paid, Amount $ 183,818
Investment Company, Portfolio Turnover 538.32%
Additional Fund Statistics [Text Block]

Key Fund Statistics

(as of May 31, 2026 )

Net Assets
$67,771,624
Number of Holdings
25
Net Advisory Fee
$183,818
Portfolio Turnover Rate
538.32%


Holdings [Text Block]

What did the Fund invest in?

(as of May 31, 2026 )

Security Type Breakdown (% of Total Net Assets)

sector
%
Exchange-Traded Products
73.0%
Short-Term Investment
14.5%
Common Stocks
7.3%
Options Purchased
0.8%
Collateralized Mortgage Obligations
0.5%
Options Written
-0.3%
bar
Largest Holdings [Text Block]
Top Ten Holdings
(% of Total Net Assets)
iShares 20+ Year Treasury Bond ETF
20.9
State Street SPDR S&P 500 ETF Trust
13.1
FT Vest Gold Strategy Target Income ETF
11.5
Strategy Inc.
7.3
iShares Bitcoin Trust ETF
7.2
State Street SPDR Portfolio S&P 500 Growth ETF
6.3
VanEck Gold Miners ETF/USA
5.0
UBS AG ETRACS Crude Oil Shares Covered Call ETN
3.5
YieldMax GOOGL Option Income Strategy ETF
1.3
YieldMax AAPL Option Income Strategy ETF
1.0
RH Tactical Outlook ETF  
Shareholder Report [Line Items]  
Fund Name RH Tactical Outlook ETF
Class Name RH Tactical Outlook ETF
Trading Symbol RHTX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about RH Tactical Outlook ETF (the "Fund") for the period June 1, 2025 to May 31, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://etfpages.com/RHTX. You can also request this information by contacting us at (800) 773‑3863.
Additional Information Phone Number (800) 773‑3863
Additional Information Website https://etfpages.com/RHTX
Expenses [Text Block]

What were the Fund costs for the past year?

(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
RH Tactical Outlook ETF
$159
1.40%

 

Expenses Paid, Amount $ 159
Expense Ratio, Percent 1.40%
Factors Affecting Performance [Text Block]

How did the Fund perform last year and what affected its performance?

For the fiscal year ended May 31, 2026, the Fund returned 27.08%. The Fund underperformed the CRSP US Total Market Index, and outperformed the Morningstar Moderate Aggressive Target Risk Index, which returned 28.35% and 22.67%, respectively, for the same period.

Factors that Impacted the Fund's Performance

RH Tactical Outlook ETF (RHTX) maintained its multi-cap equity and precious metal exposure for the majority of the year. Although the precious metals that RHTX holds (GLD, SLV) provide some diversification benefit, the large equity bias in the portfolio allows the overall portfolio to go through drawdowns with broader equity indices. RHTX continued using bitcoin related ETFs and equities to generate covered call premium income for the fund, as well as fund the purchase of long protective puts.

The main detractors from performance include:

• Strategy Class A (MSTR) had a rescaled portfolio weight of 4.87% and detracted (3.18%) during the period.

The main contributors to performance include:

• State Street® SPDR® S&P 500® ETF (SPY) had a rescaled portfolio weight of 57.19% and contributed 16.11% during the period.

 

Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's future performance.
Line Graph [Table Text Block]

Cumulative Performance

From June 1, 2025 through May 31, 2026

Initial Investment of $10,000

Date
RH Tactical Outlook ETF ($22,112)
CRSP US Total Market Index ($34,829)
Morningstar Moderate Aggressive Target Risk Index ($26,482)
5/31/2016
10000
10000
10000
5/31/2017
11182
11537
11491
5/31/2018
12732
13037
12668
5/31/2019
12663
13125
12793
5/31/2020
12303
14343
13364
5/31/2021
15639
20349
18000
5/31/2022
14850
19277
16669
5/31/2023
13894
19347
16460
5/31/2024
16309
24328
19282
5/31/2025
17400
27137
21587
5/31/2026
22112
34829
26482
line

 

Average Annual Return [Table Text Block]

Average Annual Total Returns

(as of May 31, 2026 )

1 Year
5 Year
10 Year
Since
Inception
(09/20/12)
RH Tactical Outlook ETF
27.08%
7.17%
8.26%
7.60%
CRSP US Total Market Index
28.35%
11.35%
13.29%
12.45%
Morningstar Moderate Aggressive
Target Risk Index
22.67%
8.03%
10.23%
9.37%
Performance Inception Date Sep. 20, 2012
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://etfpages.com/RHTX for more recent performance information.
Net Assets $ 8,239,965
Holdings Count | Holdings 9
Advisory Fees Paid, Amount $ 0
Investment Company, Portfolio Turnover 46.92%
Additional Fund Statistics [Text Block]

Key Fund Statistics

(as of May 31, 2026 )

Net Assets
$8,239,965
Number of Holdings
9
Net Advisory Fee
$0
Portfolio Turnover Rate
46.92%


Holdings [Text Block]

What did the Fund invest in?

(as of May 31, 2026 )

Security Type Breakdown (% of Total Net Assets)

sector
%
Exchange-Traded Products
91.5%
Short-Term Investment
6.3%
Common Stocks
2.3%
bar
Largest Holdings [Text Block]
Top Holdings
(% of Total Net Assets)
State Street SPDR S&P 500 ETF Trust
44.8
State Street SPDR Portfolio S&P 400 Mid Cap ETF
20.9
iShares Silver Trust
9.8
SPDR Gold Shares
8.4
iShares Russell 2000 ETF
7.5
Fidelity Government Portfolio
6.3
Strategy Inc.
2.3
RH Tactical Rotation ETF  
Shareholder Report [Line Items]  
Fund Name RH Tactical Rotation ETF
Class Name RH Tactical Rotation ETF
Trading Symbol RHRX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about RH Tactical Rotation ETF (the "Fund") for the period June 1, 2025 to May 31, 2026.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://etfpages.com/RHRX. You can also request this information by contacting us at (800) 773‑3863.
Additional Information Phone Number (800) 773‑3863
Additional Information Website https://etfpages.com/RHRX
Expenses [Text Block]

What were the Fund costs for the past year?

(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
RH Tactical Rotation ETF
$151
1.25%

 

Expenses Paid, Amount $ 151
Expense Ratio, Percent 1.25%
Factors Affecting Performance [Text Block]

How did the Fund perform last year and what affected its performance?

For the fiscal year ended May 31, 2026, the Fund returned 40.88%. The Fund outperformed the S&P 500 Index and the Morningstar Moderate Aggressive Target Risk Index, which returned 29.78% and 22.67%, respectively, for the same period.

Factors that Impacted the Fund's Performance

RH Tactical Rotation maintained its half broad equities, half ‘tri-sector’ approach utilizing third party research to choose in-favor sectors to hold at any given time. RH Tactical Rotation ETF also used ‘Adaptive Growth or Value’ (GVI) model to determine when to tilt the broad equities portion of the portfolio between growth and value styles.

The main detractors from performance include:

State Street Health Care Select Sector SPDR ETF (XLV) had a rescaled portfolio weight of 0.69% and detracted (0.18%) during the period.

State Street Utilities Select Sector SPDR ETF (XLU) had a rescaled portfolio weight of 1.49% and detracted (0.03%) during the period.

The main contributors to performance include:

SPDR S&P 500 ETF (SPY) had a rescaled portfolio weight of 23.22% and contributed 7.51% during the period.

iShares Semiconductor ETF (SMH) had a rescaled portfolio weight of 7.06% and contributed 14.22% during the period.

 

Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's future performance.
Line Graph [Table Text Block]

Cumulative Performance

From June 1, 2025 through May 31, 2026

Initial Investment of $10,000

Date
RH Tactical Rotation ETF ($23,426)
S&P 500 Index ($42,796)
Morningstar Moderate Aggressive Target Risk Index ($26,482)
5/31/2016
10000
10000
10000
5/31/2017
11350
11749
11491
5/31/2018
12289
13439
12668
5/31/2019
11874
13947
12793
5/31/2020
10926
15738
13364
5/31/2021
14182
22083
18000
5/31/2022
13524
22017
16669
5/31/2023
12619
22660
16460
5/31/2024
15767
29047
19282
5/31/2025
16628
32975
21587
5/31/2026
23426
42796
26482
line

 

Average Annual Return [Table Text Block]

Average Annual Total Returns

(as of May 31, 2026 )

1 Year
5 Year
10 Year
Since
Inception
(09/20/12)
RH Tactical Rotation ETF
40.88%
10.56%
8.89%
8.38%
S&P 500 Index
29.78%
14.15%
15.65%
14.83%
Morningstar Moderate Aggressive
Target Risk Index
22.67%
8.03%
10.23%
9.37%
Performance Inception Date Sep. 20, 2012
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://etfpages.com/RHRX for more recent performance information.
Net Assets $ 36,132,154
Holdings Count | Holdings 7
Advisory Fees Paid, Amount $ 30,916
Investment Company, Portfolio Turnover 226.73%
Additional Fund Statistics [Text Block]

Key Fund Statistics

(as of May 31, 2026 )

Net Assets
$36,132,154
Number of Holdings
7
Net Advisory Fee
$30,916
Portfolio Turnover Rate
226.73%


Holdings [Text Block]

What did the Fund invest in?

(as of May 31, 2026 )

Sector Breakdown (% of Total Net Assets)

sector
%
Financials
65.3%
Technology
16.1%
Industrials
8.5%
Materials
8.4%
Short-Term Investment
2.4%
bar
Largest Holdings [Text Block]
Top Holdings
(% of Total Net Assets)
State Street SPDR S&P 500 ETF Trust
47.0
State Street SPDR Portfolio S&P 500 Growth ETF
18.3
iShares Semiconductor ETF
16.1
State Street Industrial Select Sector SPDR ETF
8.5
State Street Materials Select Sector SPDR ETF
8.4
Fidelity Government Portfolio
2.4