Parallax Volatility Advisers, L.P. VRT — VERTIV HOLDINGS CO

Ownership history in Parallax Volatility Advisers, L.P.  ·  22 quarters on record

AI Ownership Summary

Parallax Volatility Advisers, L.P. reported VERTIV HOLDINGS CO (VRT) in 22 quarterly 13F filings from 2024 Q1 through 2025 Q4. Peak portfolio weight reached 0.25% in 2025 Q4. The latest visible filing shows VRT at 0.25% 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 VRT 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 VERTIV HOLDINGS CO, 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 Q4

VRT was reported at 0.25% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.25% in 2025 Q4

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

Time in book
Holding Window
2024 Q1 to 2025 Q4

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.

VRT stock page Parallax Volatility Advisers, L.P. fund profile Parallax Volatility Advisers, L.P. full holdings
How Parallax Volatility Advisers, L.P. held VRT — position size vs. price
% of Fund (quarterly)    VRT price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 20 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED — — — 795,800 +712,950 +860.5% 0.25% $128.9M 2026-02-14 (Est.) $234.47
2025 Q4 ADDED — — — 82,850 +22,850 +38.1% 0.03% $13.4M 2026-02-14 (Est.) $234.47
2025 Q4 ADDED — — — 60,000 +10,700 +21.7% 0.02% $9.7M 2026-02-14 (Est.) $234.47
2025 Q3 REDUCED 44.0% +9.8% ❌ 49,300 -38,700 -44.0% 0.01% $7.4M 2025-11-14 $170.87
2025 Q3 ADDED — — — 88,000 +22,900 +35.2% 0.02% $13.3M 2025-11-14 $170.87
2025 Q2 REDUCED 39.2% +11.6% ❌ 65,100 -42,000 -39.2% 0.02% $8.4M 2025-08-14 $132.40
2025 Q2 REDUCED 47.8% +11.6% ❌ 107,100 -98,070 -47.8% 0.03% $13.8M 2025-08-14 $132.40
2025 Q1 REDUCED 31.1% +77.9% ❌ 205,170 -92,530 -31.1% 0.04% $14.8M 2025-05-15 $105.25
2025 Q1 ADDED — — — 297,700 +249,900 +522.8% 0.06% $21.5M 2025-05-15 $105.25
2025 Q1 REDUCED 67.5% +77.9% ❌ 47,800 -99,500 -67.5% 0.01% $3.5M 2025-05-15 $105.25
2024 Q4 ADDED — — — 147,300 +147,100 +73550.0% 0.03% $16.7M 2025-02-14 $107.87
2024 Q4 REDUCED 99.4% -36.4% ✅ 200 -31,026 -99.4% 0.00% $23K 2025-02-14 $107.87
2024 Q4 REDUCED 84.7% -36.4% ✅ 31,226 -173,274 -84.7% 0.01% $3.5M 2025-02-14 $107.87
2024 Q3 ADDED — — — 204,500 +124,000 +154.0% 0.04% $20.3M 2024-11-14 $120.79
2024 Q3 ADDED — — — 80,500 +12,600 +18.6% 0.01% $8.0M 2024-11-14 $120.79
2024 Q2 ADDED — — — 67,900 +38,900 +134.1% 0.01% $5.9M 2024-08-14 $79.98
2024 Q2 ADDED — — — 29,000 +24,496 +543.9% 0.01% $2.5M 2024-08-14 $79.98
2024 Q2 ADDED — — — 4,504 +1,739 +62.9% 0.00% $390K 2024-08-14 $79.98
2024 Q1 REDUCED 88.9% +6.2% ❌ 2,765 -22,235 -88.9% 0.00% $226K 2024-05-15 $104.34
2024 Q1 ADDED — — — 25,000 +19,900 +390.2% 0.00% $2.0M 2024-05-15 $104.34
2 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding VRT

As of 2026 Q1 — sorted by position size

Highlander Partners, L.P. 3Y 25.85% Ulland Investment Advisors, LLC 3Y 5.81% HARTLINE INVESTMENT CORP/ 3Y 7Y 5.26% Kessler Investment Group, LLC 3Y 7Y 4.29% Eagle Bluffs Wealth Management LLC 3Y 4.26% Haven Capital Group, Inc. 4.08% FISHMAN JAY A LTD/MI 3Y 7Y 3.88% MOUNTAIN PACIFIC INVESTMENT ADVISERS LLC 3Y 7Y 3.54% BLUE JEAN FINANCIAL LLC 3.5% Summerhill Capital Management lnc. 3.43%

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

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 VRT?

Parallax Volatility Advisers, L.P. reported VRT across 20 quarterly 13F filings, from 2024 Q1 through 2025 Q4.

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

The largest reported portfolio weight for VRT was 0.25% in 2025 Q4.

What is the latest reported VRT position on this page?

The most recent filing on this page is 2025 Q4, when Parallax Volatility Advisers, L.P. reported 795,800 shares, equal to 0.25% of portfolio, with an estimated market value of $128.9M.

What does the chart on this VRT ownership page compare?

The chart compares Parallax Volatility Advisers, L.P.'s quarterly VRT 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 VRT position?

Based on 13F filing dates vs. subsequent VRT price moves, Parallax Volatility Advisers, L.P. correctly timed 6 out of 21 reported position changes (29%). The annualised alpha on VRT relative to SPY over the holding period was +73.3%.

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