UBS Group AG OSS — ONE STOP SYS INC

Ownership history in UBS Group AG  ·  24 quarters on record

AI Ownership Summary

UBS Group AG reported ONE STOP SYS INC (OSS) in 24 quarterly 13F filings from 2023 Q4 through 2026 Q1. The latest visible filing shows OSS 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 OSS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was UBS Group AG's position in ONE STOP SYS INC, 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

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

High-water mark
Peak Conviction
0.0% in 2026 Q1

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 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.

OSS stock page UBS Group AG fund profile UBS Group AG full holdings
How UBS Group AG held OSS — position size vs. price
% of Fund (quarterly)    OSS price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 ADDED — — — 407,014 +400,002 +5704.5% 0.00% $3.1M 2026-05-05 $9.77
2025 Q4 ADDED — — — 7,012 +5,116 +269.8% 0.00% $50K 2026-01-29 $10.62
2025 Q3 REDUCED 78.3% +32.8% ❌ 1,896 -6,835 -78.3% 0.00% $10K 2025-11-13 $5.16
2025 Q2 REDUCED 57.5% +57.2% ❌ 8,731 -11,811 -57.5% 0.00% $31K 2025-08-14 $5.26
2025 Q1 REDUCED 19.7% +53.0% ❌ 20,542 -5,045 -19.7% 0.00% $48K 2025-05-13 $2.68
2024 Q4 ADDED — — — 25,587 +10,286 +67.2% 0.00% $86K 2025-02-14 $3.76
2024 Q3 REDUCED 41.3% +47.7% ❌ 15,301 -10,781 -41.3% 0.00% $37K 2024-11-14 $2.33
2024 Q2 ADDED — — — 26,082 +22,483 +624.7% 0.00% $63K 2024-08-14 $2.00
2024 Q1 ADDED — — — 3,599 +3,293 +1076.1% 0.00% $12K 2024-05-13 $2.37
2023 Q4 REDUCED 90.5% +51.9% ❌ 306 -2,900 -90.5% 0.00% $643 2024-02-09 $2.15
14 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding OSS

As of 2026 Q1 — sorted by position size

Penbrook Management LLC 3Y 7Y 0.27% BAKER TILLY WEALTH MANAGEMENT, LLC 3Y 0.04% Lodestone Wealth Management LLC 3Y 0.02% Hillsdale Investment Management Inc. 3Y 7Y 0.01% Cambridge Investment Research Advisors, Inc. 3Y 7Y 0.0% Apollon Wealth Management, LLC 3Y 7Y 0.0% SG Americas Securities, LLC 3Y 7Y 0.0% IMC-Chicago, LLC 3Y 7Y 0.0% Root Financial Partners, LLC 0.0% SBI Securities Co., Ltd. 0.0%

FAQ About UBS Group AG and OSS

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

How long has UBS Group AG reported owning OSS?

UBS Group AG reported OSS across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported OSS position in UBS Group AG's portfolio?

The largest reported portfolio weight for OSS was 0.00% in 2026 Q1.

What is the latest reported OSS position on this page?

The most recent filing on this page is 2026 Q1, when UBS Group AG reported 407,014 shares, equal to 0.00% of portfolio, with an estimated market value of $3.1M.

What does the chart on this OSS ownership page compare?

The chart compares UBS Group AG's quarterly OSS 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 UBS Group AG time their OSS position?

Based on 13F filing dates vs. subsequent OSS price moves, UBS Group AG correctly timed 11 out of 23 reported position changes (48%). The annualised alpha on OSS relative to SPY over the holding period was +8.8%.

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