Ownership history in VANGUARD GROUP INC Β· 61 quarters on record
This page tracks every 13F SEC filing in which VANGUARD GROUP INC reported a position in PROPHASE LABS INC COM (PRPH). 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 VANGUARD GROUP INC underperformed the S&P 500 by β1.0% annually on this PRPH position. Timing score: 49% (18/37 decisions correct). Average cost basis: $49.99. Maximum drawdown during holding period: β99.6%.
β‘οΈ Roughly in line with S&P 500 (Β±1% alpha range).
60 quarters analyzed
β‘οΈ Neutral timing β roughly coin-flip accuracy on add/trim calls.
18 of 37 add/trim decisions correct
Best entry: $4.60 (2025 Q3) Β· Worst: $126.80 (2022 Q2)
πͺ Held through 5 major drawdowns (>20%). Diamond-hands conviction.
30 adds Β· 8 trims. Bought during 11 of 30 down-price quarters. π Consistently bullish β fund kept accumulating this position.
βοΈ Portfolio weight has remained relatively stable β conviction maintained.
Currently 0.0% 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