Ownership history in Walleye Trading LLC Β· 165 quarters on record
This page tracks every 13F SEC filing in which Walleye Trading LLC reported a position in PFIZER INC COM (PFE). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price β sourced directly from SEC EDGAR 13F filings.
π Walleye Trading LLC underperformed the S&P 500 by β2.3% annually on this PFE position. Timing score: 50% (82/163 decisions correct). Average cost basis: $20.93. Maximum drawdown during holding period: β51.3%.
β οΈ Trailed SPY by 2.3% ann. on this position.
163 quarters analyzed
β‘οΈ Neutral timing β roughly coin-flip accuracy on add/trim calls.
82 of 163 add/trim decisions correct
Best entry: $6.42 (2009 Q1) Β· Worst: $47.29 (2021 Q4)
πͺ Held through 3 major drawdowns (>20%). Diamond-hands conviction.
86 adds Β· 79 trims. Bought during 21 of 34 down-price quarters. π More buys than sells across the holding period.
βοΈ Portfolio weight has remained relatively stable β conviction maintained.
Currently 0.07% of portfolio
β Based on quarterly 13F SEC filings and end-of-quarter closing prices. Timing score = accuracy of add/trim decisions vs next-quarter price direction. Alpha = mean quarterly excess return Γ 4 (annualised). Not investment advice.
As of 2025 Q4 β sorted by position size