Ownership history in PEAK6 Group LLC Β· 63 quarters on record
This page tracks every 13F SEC filing in which PEAK6 Group LLC reported a position in MARTIN MARIETTA MATLS INC COM (MLM). 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 PEAK6 Group LLC underperformed the S&P 500 by β0.4% annually on this MLM position. Timing score: 46% (27/59 decisions correct). Average cost basis: $121.00. Maximum drawdown during holding period: β58.0%.
β‘οΈ Roughly in line with S&P 500 (Β±1% alpha range).
61 quarters analyzed
β‘οΈ Neutral timing β roughly coin-flip accuracy on add/trim calls.
27 of 59 add/trim decisions correct
Best entry: $54.83 (2011 Q3) Β· Worst: $208.64 (2017 Q2)
πͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.
27 adds Β· 34 trims. Bought during 4 of 19 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