Ownership history in Walleye Trading LLC Β· 107 quarters on record
This page tracks every 13F SEC filing in which Walleye Trading LLC reported a position in AECOM TECHNOLOGY CORP DELAWA COM (ACM). 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 outperformed the S&P 500 by +-0.0% annually on this ACM position. Timing score: 45% (47/105 decisions correct). Average cost basis: $63.34. Maximum drawdown during holding period: β30.8%.
β‘οΈ Roughly in line with S&P 500 (Β±1% alpha range).
106 quarters analyzed
β‘οΈ Neutral timing β roughly coin-flip accuracy on add/trim calls.
47 of 105 add/trim decisions correct
Best entry: $16.99 (2011 Q3) Β· Worst: $129.81 (2025 Q3)
πͺ Held through 2 major drawdowns (>20%).
52 adds Β· 54 trims. Bought during 8 of 20 down-price quarters. π Predominantly trimming β distribution phase.
βοΈ Portfolio weight has remained relatively stable β conviction maintained.
Currently 0.01% 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