Ownership history in MUHLENKAMP & CO INC Β· 28 quarters on record
This page tracks every 13F SEC filing in which MUHLENKAMP & CO INC reported a position in Schlumberger Limited Com COM (SLB). 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 MUHLENKAMP & CO INC underperformed the S&P 500 by β27.9% annually on this SLB position. Timing score: 58% (15/26 decisions correct). Average cost basis: $31.93. Maximum drawdown during holding period: β69.8%.
β Significantly underperformed the S&P 500 by 27.9% ann.
27 quarters analyzed
β
Decent timing β more right than wrong on entries and exits.
15 of 26 add/trim decisions correct
Best entry: $19.49 (2020 Q4) Β· Worst: $64.45 (2016 Q4)
πͺ Held through 1 major drawdown (>20%). Strong conviction under pressure.
17 adds Β· 10 trims. Bought during 6 of 11 down-price quarters. π More buys than sells across the holding period.
π Portfolio weight has been declining in recent quarters. Possible distribution phase.
Currently 3.32% 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