MSTY ETF turnover spike: $31.4M traded, volume 2.0x averageMSTY 美股 ETF 成交异动：YieldMax MSTR Option Income Strategy ETF

Signal

The YieldMax MSTR Option Income Strategy ETF (ticker: MSTY) experienced an ETF flow/turnover spike event, with its first trading date on February 21, 2024. The fund currently holds $1.29 billion in assets under management, posts a $31.4 million daily turnover, has volume at 1.96x its average level, and saw a 4.76% one-day price decline. Classified as an active_explicit strategy, MSTY falls under the single stock, income, issuer watch, and curated categories, with no explicit underlying assets disclosed.

Portfolio Analysis

This marks the first official holdings snapshot for MSTY, with no prior historical holdings data available for comparison. The portfolio includes 31.42% allocated to cash and other assets, valued at $517.0 million. Four U.S. Treasury bills maturing in 2026 account for a combined 50.67% of holdings, with the 08/06/2026 bill representing 14.77% of the portfolio ($243.0 million in market value). The fund also holds two MSTR put options maturing in 2026, accounting for 6.27% and 4.79% of the portfolio, with market values of -$103.2 million and -$78.8 million respectively. The top 5 holdings concentration ratio hits 80.19%, while the top 10 concentration ratio reaches 98.60%, with no tracked hot-stock theme overlaps identified.

Active vs Passive Classification

MSTY is explicitly classified as an active_explicit strategy, making it an officially labeled actively managed fund rather than a passively index-tracking product, with no reliance on index component rebalancing for portfolio updates.

Significance

The $1.29 billion AUM is sizable for a fund that first traded on February 21, 2024. Combined with 1.96x average trading volume and $31.4 million in daily turnover, the data signals sharp near-term investor interest. The extreme concentration of holdings (over 80% in the top 5 positions) means the fund’s performance will be heavily tied to the performance of its core holdings, particularly the MSTR put option positions. The 4.76% one-day price decline reflects short-term market reaction to the new ETF’s activity.

Next Watch Points

Investors should monitor future official holdings disclosures, changes in turnover and trading volume, and verify that the fund’s actual operations align with its stated option income strategy. Additional tracking points include shifts in holdings concentration and trends in assets under management over time.