v3.26.3
Financial Highlights - Summary of Financial Highlights (Details) - $ / shares
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2026
Financial Highlights [Abstract]    
Net asset value per share, beginning of period (in Dollars per share) [1] $ 14.02 $ 25.18
From investment operations:    
Net investment income (in Dollars per share) [1],[2] 0.16 0.48
Net realized gain (loss) and change in unrealized appreciation (depreciation) from investments in avalanche (in Dollars per share) [1],[3] 9.21 (2.27)
Net increase (decrease) resulting from operations (in Dollars per share) [1] 9.37 (1.79)
Less distribution to shareholders    
Decrease in net assets resulting from distributions to shareholders (in Dollars per share) [1] (0.17) (0.17)
Net asset value per share, end of period (in Dollars per share) [1] $ 23.22 $ 23.22
Total return [1],[4] 67.77% (6.60%)
Ratios to average net assets(e)    
Gross expense [1],[5] 0.20% 0.20%
Net expense [1],[5] 0.20% 0.18%
Net investment income [1],[5] 4.23% 3.76%
[1] No prior comparative financial statements have been provided as the Trust did not have any operations as of September 30, 2025.
[2] Net investment income per share has been calculated based upon an average of daily shares outstanding.
[3] The amount shown for a share outstanding throughout the period may not agree with the change in the aggregate gains and losses for the period because of the timing of sales and repurchases of the Trust’s shares in relation to fluctuating market values of AVAX.
[4] Returns are not annualized and include adjustments required by GAAP. Returns for financial statements purposes may differ from net asset values and performance reported elsewhere by the Trust.
[5] Annualized.