Parallax Volatility Advisers, L.P. MT — ARCELORMITTAL SA LUXEMBOURG

Ownership history in Parallax Volatility Advisers, L.P.  ·  51 quarters on record

AI Ownership Summary

Parallax Volatility Advisers, L.P. reported ARCELORMITTAL SA LUXEMBOURG (MT) in 51 quarterly 13F filings from 2023 Q4 through 2025 Q3. Peak portfolio weight reached 0.01% in 2023 Q4. The latest visible filing shows MT 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. Older history is available after unlock; the visible window still shows the most recent pattern.

What this MT ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Parallax Volatility Advisers, L.P.'s position in ARCELORMITTAL SA LUXEMBOURG, 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
2025 Q3

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

High-water mark
Peak Conviction
0.01% in 2023 Q4

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

Time in book
Holding Window
2023 Q4 to 2025 Q3

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.

MT stock page Parallax Volatility Advisers, L.P. fund profile Parallax Volatility Advisers, L.P. full holdings
How Parallax Volatility Advisers, L.P. held MT — position size vs. price
% of Fund (quarterly)    MT price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q3 REDUCED 85.2% +26.8% ❌ 6,657 -38,343 -85.2% 0.00% $241K 2025-11-14 $39.38
2025 Q3 ADDED — — — 45,000 +26,305 +140.7% 0.00% $1.6M 2025-11-14 $39.38
2025 Q2 REDUCED 58.5% +15.6% ❌ 18,695 -26,305 -58.5% 0.00% $590K 2025-08-14 $33.60
2025 Q2 ADDED — — — 45,000 +20,700 +85.2% 0.00% $1.4M 2025-08-14 $33.60
2024 Q1 REDUCED 75.7% -16.4% ✅ 24,300 -75,700 -75.7% 0.00% $670K 2024-05-15 $24.96
2024 Q1 REDUCED 33.3% -16.4% ✅ 100,000 -50,000 -33.3% 0.01% $2.8M 2024-05-15 $24.96
2023 Q4 ADDED — — — 150,000 +84,300 +128.3% 0.01% $4.3M 2024-02-14 $26.12
2023 Q4 ADDED — — — 65,700 +64,700 +6470.0% 0.00% $1.9M 2024-02-14 $26.12
43 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding MT

As of 2026 Q1 — sorted by position size

Amanah Holdings Trust 0.85% Legacy Wealth Asset Management, LLC 3Y 0.28% EVOLVE PRIVATE WEALTH, LLC 0.12% Retirement Systems of Alabama 3Y 7Y 0.12% CONTRAVISORY INVESTMENT MANAGEMENT, INC. 3Y 7Y 0.08% HIGHLAND CAPITAL MANAGEMENT, LLC 3Y 7Y 0.06% Rosenberg Matthew Hamilton 3Y 0.05% TRUST CO OF TOLEDO NA /OH/ 3Y 7Y 0.04% Versant Capital Management, Inc 3Y 7Y 0.04% Archford Capital Strategies, LLC 3Y 7Y 0.03%

FAQ About Parallax Volatility Advisers, L.P. and MT

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

How long has Parallax Volatility Advisers, L.P. reported owning MT?

Parallax Volatility Advisers, L.P. reported MT across 8 quarterly 13F filings, from 2023 Q4 through 2025 Q3.

What was the largest reported MT position in Parallax Volatility Advisers, L.P.'s portfolio?

The largest reported portfolio weight for MT was 0.01% in 2023 Q4.

What is the latest reported MT position on this page?

The most recent filing on this page is 2025 Q3, when Parallax Volatility Advisers, L.P. reported 6,657 shares, equal to 0.00% of portfolio, with an estimated market value of $241K.

What does the chart on this MT ownership page compare?

The chart compares Parallax Volatility Advisers, L.P.'s quarterly MT 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 Parallax Volatility Advisers, L.P. time their MT position?

Based on 13F filing dates vs. subsequent MT price moves, Parallax Volatility Advisers, L.P. correctly timed 17 out of 50 reported position changes (34%). The annualised alpha on MT relative to SPY over the holding period was +5.1%.

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