JANE STREET GROUP, LLC MSTZ ETF OPPORTUNITIES TRUST

Ownership history in JANE STREET GROUP, LLC  ·  17 quarters on record

AI Ownership Summary

JANE STREET GROUP, LLC reported ETF OPPORTUNITIES TRUST (MSTZ) in 17 quarterly 13F filings from 2024 Q4 through 2026 Q1. The latest visible filing shows MSTZ at 0.00% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this MSTZ ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was JANE STREET GROUP, LLC's position in ETF OPPORTUNITIES TRUST, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

MSTZ was reported at 0.00% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.0% in 2025 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How JANE STREET GROUP, LLC held MSTZ — position size vs. price
% of Fund (quarterly)    MSTZ price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 17 quarters  
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED 19,533 -275,167 -93.4% 0.00% $244K 2026-05-12 $4.71
2026 Q1 ADDED 294,700 +235,300 +396.1% 0.00% $3.7M 2026-05-12 $4.71
2026 Q1 REDUCED 59,400 -34,228 -36.6% 0.00% $741K 2026-05-12 $4.71
2025 Q4 REDUCED 69.5% -27.2% 93,628 -213,572 -69.5% 0.00% $1.6M 2026-02-12 $15.68
2025 Q4 ADDED 307,200 +250,800 +444.7% 0.00% $5.3M 2026-02-12 $15.68
2025 Q4 REDUCED 41.7% -27.2% 56,400 -40,345 -41.7% 0.00% $967K 2026-02-12 $15.68
2025 Q3 REDUCED 21.1% +212.0% 96,745 -25,855 -21.1% 0.00% $509K 2025-11-14 $11.43
2025 Q3 REDUCED 40.6% +212.0% 122,600 -83,700 -40.6% 0.00% $645K 2025-11-14 $11.43
2025 Q3 ADDED 206,300 +74,200 +56.2% 0.00% $1.1M 2025-11-14 $11.43
2025 Q2 REDUCED 18.0% +22.5% 132,100 -29,000 -18.0% 0.00% $552K 2025-08-14 $4.31
2025 Q2 REDUCED 53.0% +22.5% 161,100 -181,483 -53.0% 0.00% $673K 2025-08-14 $4.31
2025 Q1 ADDED 342,583 +72,168 +26.7% 0.00% $4.8M 2025-05-14 $4.22
2025 Q1 REDUCED 57.3% -70.2% 270,415 -363,235 -57.3% 0.00% $3.8M 2025-05-14 $4.22
2025 Q1 ADDED 633,650 +380,888 +150.7% 0.00% $8.9M 2025-05-14 $4.22
2024 Q4 ADDED 252,762 +236,687 +1472.4% 0.00% $7.1M 2025-02-14 $16.48
2024 Q4 ADDED 16,075 +2,040 +14.5% 0.00% $452K 2025-02-14 $16.48
2024 Q4 INITIATED 14,035 0.00% $394K 2025-02-14 $16.48

FAQ About JANE STREET GROUP, LLC and MSTZ

These are the practical questions this page is built to answer before you even open the full history table.

How long has JANE STREET GROUP, LLC reported owning MSTZ?

JANE STREET GROUP, LLC reported MSTZ across 17 quarterly 13F filings, from 2024 Q4 through 2026 Q1.

What was the largest reported MSTZ position in JANE STREET GROUP, LLC's portfolio?

The largest reported portfolio weight for MSTZ was 0.00% in 2025 Q1.

What is the latest reported MSTZ position on this page?

The most recent filing on this page is 2026 Q1, when JANE STREET GROUP, LLC reported 19,533 shares, equal to 0.00% of portfolio, with an estimated market value of $244K.

What does the chart on this MSTZ ownership page compare?

The chart compares JANE STREET GROUP, LLC's quarterly MSTZ portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did JANE STREET GROUP, LLC time their MSTZ position?

Based on 13F filing dates vs. subsequent MSTZ price moves, JANE STREET GROUP, LLC correctly timed 7 out of 16 reported position changes (44%). The annualised alpha on MSTZ relative to SPY over the holding period was -69.2%.

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