SPY — SPDR TR UNIT SER 1

Ownership history in Walleye Trading LLC  ·  154 quarters on record

AI Ownership Summary

Walleye Trading LLC reported SPDR TR UNIT SER 1 (SPY) in 154 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 6.97% in 2024 Q1. The latest visible filing shows SPY at 0.18% 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 SPY ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Walleye Trading LLC's position in SPDR TR UNIT SER 1, 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

SPY was reported at 0.18% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
6.97% in 2024 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 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.

SPY stock page Walleye Trading LLC fund profile Walleye Trading LLC full holdings
How Walleye Trading LLC held SPY — position size vs. price
% of Fund (quarterly)    SPY price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 26 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 186,368 -760,132 -80.3% 0.18% $127.1M 2026-02-14 (Est.) $679.89
2025 Q4 REDUCED 946,500 -790,000 -45.5% 0.92% $645.4M 2026-02-14 (Est.) $679.89
2025 Q4 ADDED 1,736,500 +1,173,100 +208.2% 1.69% $1.18B 2026-02-14 (Est.) $679.89
2025 Q3 REDUCED 563,400 -1,883,200 -77.0% 0.57% $375.3M 2025-11-14 $668.13
2025 Q3 ADDED 2,446,600 +189,100 +8.4% 2.48% $1.63B 2025-11-14 $668.13
2025 Q2 ADDED 2,257,500 +2,042,486 +949.9% 2.53% $1.39B 2025-08-13 $639.47
2025 Q2 REDUCED 215,014 -1,492,586 -87.4% 0.24% $132.8M 2025-08-13 $639.47
2025 Q2 REDUCED 1,707,600 -1,355,200 -44.2% 1.91% $1.06B 2025-08-13 $639.47
2025 Q1 ADDED 3,062,800 +763,500 +33.2% 3.97% $1.71B 2025-05-14 $580.93
2025 Q1 ADDED 2,299,300 +1,889,507 +461.1% 2.98% $1.29B 2025-05-14 $580.93
2025 Q1 REDUCED 409,793 -2,294,307 -84.8% 0.53% $229.2M 2025-05-14 $580.93
2024 Q4 ADDED 2,704,100 +889,000 +49.0% 3.33% $1.58B 2025-02-13 $601.01
2024 Q4 ADDED 1,815,100 +1,320,308 +266.8% 2.24% $1.06B 2025-02-13 $601.01
2024 Q4 REDUCED 494,792 -1,892,408 -79.3% 0.61% $290.0M 2025-02-13 $601.01
2024 Q3 REDUCED 2,387,200 -582,700 -19.6% 2.88% $1.37B 2024-11-14 $582.90
2024 Q3 ADDED 2,969,900 +2,337,121 +369.3% 3.58% $1.70B 2024-11-14 $582.90
2024 Q3 REDUCED 632,779 -1,226,421 -66.0% 0.76% $363.1M 2024-11-14 $582.90
2024 Q2 ADDED 1,859,200 +1,289,529 +226.4% 2.40% $1.01B 2024-08-14 $532.54
2024 Q2 REDUCED 569,671 -1,886,429 -76.8% 0.74% $310.0M 2024-08-14 $532.54
2024 Q2 ADDED 2,456,100 +662,600 +36.9% 3.17% $1.34B 2024-08-14 $532.54
2024 Q1 REDUCED 1,793,500 -4,469,100 -71.4% 1.99% $938.1M 2024-05-15 $517.19
2024 Q1 ADDED 6,262,600 +4,094,224 +188.8% 6.97% $3.28B 2024-05-15 $517.19
2024 Q1 ADDED 2,168,376 +1,597,883 +280.1% 2.41% $1.13B 2024-05-15 $517.19
2023 Q4 REDUCED 570,493 -1,936,707 -77.2% 0.58% $271.2M 2024-02-14 $485.22
2023 Q4 REDUCED 2,507,200 -2,747,600 -52.3% 2.56% $1.19B 2024-02-14 $485.22
2023 Q4 ADDED 5,254,800 +856,500 +19.5% 5.37% $2.50B 2024-02-14 $485.22
128 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding SPY

As of 2025 Q4 — sorted by position size

North Horizon Holdings Inc. 100.0% MILLBANK DARTMOOR PORTSMOUTH LLC 100.0% Trustees of Columbia University in the City of New York 3Y 99.6% TEXAS TREASURY SAFEKEEPING TRUST CO 3Y 7Y 95.55% HOWARD HUGHES MEDICAL INSTITUTE 3Y 7Y 92.85% Power Alpha Investment Ltd 92.14% RedJay Asset Management Inc. 91.78% RAMSEY QUANTITATIVE SYSTEMS 3Y 7Y 91.62% Greenfield FTC, Inc. 3Y 90.72% DOW CHEMICAL CO /DE/ 3Y 7Y 83.86%

FAQ About Walleye Trading LLC and SPY

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

How long has Walleye Trading LLC reported owning SPY?

Walleye Trading LLC reported SPY across 26 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported SPY position in Walleye Trading LLC's portfolio?

The largest reported portfolio weight for SPY was 6.97% in 2024 Q1.

What is the latest reported SPY position on this page?

The most recent filing on this page is 2025 Q4, when Walleye Trading LLC reported 186,368 shares, equal to 0.18% of portfolio, with an estimated market value of $127.1M.

What does the chart on this SPY ownership page compare?

The chart compares Walleye Trading LLC's quarterly SPY 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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