Walleye Trading LLC SNDK — SANDISK CORP COM

Ownership history in Walleye Trading LLC  ·  70 quarters on record

AI Ownership Summary

Walleye Trading LLC reported SANDISK CORP COM (SNDK) in 70 quarterly 13F filings from 2025 Q1 through 2026 Q1. Peak portfolio weight reached 0.32% in 2026 Q1. The latest visible filing shows SNDK 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 SNDK 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 SANDISK CORP COM, 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

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

High-water mark
Peak Conviction
0.32% 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
2025 Q1 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.

SNDK stock page Walleye Trading LLC fund profile Walleye Trading LLC full holdings
How Walleye Trading LLC held SNDK — position size vs. price
% of Fund (quarterly)    SNDK price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 12 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 849 -299,151 -99.7% 0.00% $539K 2026-05-11 $1547.56
2026 Q1 ADDED — — — 300,000 +94,200 +45.8% 0.32% $190.6M 2026-05-11 $1547.56
2026 Q1 REDUCED — — — 205,800 -171,000 -45.4% 0.22% $130.8M 2026-05-11 $1547.56
2025 Q4 ADDED — — — 376,800 +60,700 +19.2% 0.13% $89.4M 2026-02-13 $626.56
2025 Q4 ADDED — — — 316,100 +8,800 +2.9% 0.11% $75.0M 2026-02-13 $626.56
2025 Q3 REDUCED 14.5% +117.7% ❌ 307,300 -52,300 -14.5% 0.05% $34.5M 2025-11-14 $254.16
2025 Q3 ADDED — — — 359,600 +25,900 +7.8% 0.06% $40.3M 2025-11-14 $254.16
2025 Q2 REDUCED 21.3% +150.3% ❌ 333,700 -90,100 -21.3% 0.03% $15.1M 2025-08-13 $47.01
2025 Q2 ADDED — — — 423,800 +261,069 +160.4% 0.03% $19.2M 2025-08-13 $47.01
2025 Q1 REDUCED 45.9% -4.8% ✅ 162,731 -138,269 -45.9% 0.02% $7.7M 2025-05-14 $41.93
2025 Q1 REDUCED — — — 301,000 -2,400 -0.8% 0.03% $14.3M 2025-05-14 $41.93
2025 Q1 ADDED — — — 303,400 +284,460 +1501.9% 0.03% $14.4M 2025-05-14 $41.93
58 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding SNDK

As of 2026 Q1 — sorted by position size

Panoramic Hills Capital Ltd 49.86% Ma Investment Partnership, LP 30.55% Oxbow Capital Management (HK) Ltd 3Y 29.79% Valliance Asset Management Ltd 3Y 24.14% Central Asset Investments & Management Holdings (HK) Ltd 3Y 7Y 23.47% Amanah Holdings Trust 17.49% AIGH Capital Management LLC 3Y 17.33% Madison Avenue Partners, LP 3Y 17.1% Anatole Investment Management Ltd 3Y 17.1% E20 Capital Ltd 15.3%

FAQ About Walleye Trading LLC and SNDK

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 SNDK?

Walleye Trading LLC reported SNDK across 12 quarterly 13F filings, from 2025 Q1 through 2026 Q1.

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

The largest reported portfolio weight for SNDK was 0.32% in 2026 Q1.

What is the latest reported SNDK position on this page?

The most recent filing on this page is 2026 Q1, when Walleye Trading LLC reported 849 shares, equal to 0.00% of portfolio, with an estimated market value of $539K.

What does the chart on this SNDK ownership page compare?

The chart compares Walleye Trading LLC's quarterly SNDK 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 Walleye Trading LLC time their SNDK position?

Based on 13F filing dates vs. subsequent SNDK price moves, Walleye Trading LLC correctly timed 3 out of 11 reported position changes (27%). The annualised alpha on SNDK relative to SPY over the holding period was +2889.2%.

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