SCO — PROSHARES ULTRASHORT BLOOMBERG

Ownership history in CITADEL ADVISORS LLC  ·  93 quarters on record

AI Ownership Summary

CITADEL ADVISORS LLC reported PROSHARES ULTRASHORT BLOOMBERG (SCO) in 93 quarterly 13F filings from 2023 Q3 through 2025 Q4. The latest visible filing shows SCO 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 SCO ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CITADEL ADVISORS LLC's position in PROSHARES ULTRASHORT BLOOMBERG, 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

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

High-water mark
Peak Conviction
0.0% in 2025 Q2

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

Time in book
Holding Window
2023 Q3 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.

SCO stock page CITADEL ADVISORS LLC fund profile CITADEL ADVISORS LLC full holdings
How CITADEL ADVISORS LLC held SCO — position size vs. price
% of Fund (quarterly)    SCO price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 23 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 ADDED 100,900 +35,400 +54.0% 0.00% $2.0M 2026-02-14 (Est.) $16.17
2025 Q4 REDUCED 65,500 -5,400 -7.6% 0.00% $1.3M 2026-02-14 (Est.) $16.17
2025 Q3 REDUCED 70,900 -17,700 -20.0% 0.00% $1.2M 2025-11-14 $18.35
2025 Q3 REDUCED 88,600 -77,700 -46.7% 0.00% $1.5M 2025-11-14 $18.35
2025 Q2 ADDED 166,300 +83,200 +100.1% 0.00% $3.0M 2025-08-14 $17.57
2025 Q2 ADDED 83,100 +74,222 +836.0% 0.00% $1.5M 2025-08-14 $17.57
2025 Q1 REDUCED 8,878 -74,422 -89.3% 0.00% $149K 2025-05-15 $20.01
2025 Q1 ADDED 83,300 +22,500 +37.0% 0.00% $1.4M 2025-05-15 $20.01
2025 Q1 ADDED 60,800 +34,756 +133.5% 0.00% $1.0M 2025-05-15 $20.01
2024 Q4 REDUCED 26,044 -117,956 -81.9% 0.00% $441K 2025-02-14 $16.75
2024 Q4 ADDED 144,000 +89,300 +163.3% 0.00% $2.4M 2025-02-14 $16.75
2024 Q4 REDUCED 54,700 -54,000 -49.7% 0.00% $926K 2025-02-14 $16.75
2024 Q3 ADDED 108,700 +48,500 +80.6% 0.00% $2.1M 2024-11-14 $18.50
2024 Q3 ADDED 60,200 +4,400 +7.9% 0.00% $1.2M 2024-11-14 $18.50
2024 Q2 ADDED 55,800 +12,600 +29.2% 0.00% $869K 2024-08-14 $16.87
2024 Q2 REDUCED 43,200 -15,100 -25.9% 0.00% $673K 2024-08-14 $16.87
2024 Q1 ADDED 58,300 +8,500 +17.1% 0.00% $934K 2024-05-15 $16.82
2024 Q1 REDUCED 49,800 -16,700 -25.1% 0.00% $798K 2024-05-15 $16.82
2023 Q4 REDUCED 66,500 -22,600 -25.4% 0.00% $1.4M 2024-02-14 $18.52
2023 Q4 ADDED 89,100 +23,889 +36.6% 0.00% $1.9M 2024-02-14 $18.52
2023 Q3 REDUCED 65,211 -7,689 -10.5% 0.00% $1.1M 2023-11-14 $18.63
2023 Q3 REDUCED 72,900 -31,500 -30.2% 0.00% $1.2M 2023-11-14 $18.63
2023 Q3 ADDED 104,400 +84,658 +428.8% 0.00% $1.8M 2023-11-14 $18.63
70 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding SCO

As of 2025 Q4 — sorted by position size

Corigliano Investment Advisers, LLC 0.33% FLOW TRADERS U.S. LLC 3Y 7Y 0.04% Jump Financial, LLC 3Y 0.03% TWO SIGMA SECURITIES, LLC 3Y 7Y 0.03% Tower Research Capital LLC (TRC) 3Y 7Y 0.02% SUSQUEHANNA INTERNATIONAL GROUP, LLP 3Y 7Y 0.0% GROUP ONE TRADING LLC 3Y 7Y 0.0% Mirae Asset Global Investments Co., Ltd. 3Y 7Y 0.0% JANE STREET GROUP, LLC 3Y 7Y 0.0% SUSQUEHANNA INTERNATIONAL GROUP, LLP 3Y 7Y 0.0%

FAQ About CITADEL ADVISORS LLC and SCO

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

How long has CITADEL ADVISORS LLC reported owning SCO?

CITADEL ADVISORS LLC reported SCO across 23 quarterly 13F filings, from 2023 Q3 through 2025 Q4.

What was the largest reported SCO position in CITADEL ADVISORS LLC's portfolio?

The largest reported portfolio weight for SCO was 0.00% in 2025 Q2.

What is the latest reported SCO position on this page?

The most recent filing on this page is 2025 Q4, when CITADEL ADVISORS LLC reported 100,900 shares, equal to 0.00% of portfolio, with an estimated market value of $2.0M.

What does the chart on this SCO ownership page compare?

The chart compares CITADEL ADVISORS LLC's quarterly SCO 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.

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