Fidelity’s Concentration Risk
Picking up where we left off with Fidelity's unprecedented shift in total (13F) position count in late 2018, we turn to another anomaly disclosed by our modeling: In the exhibit below, Alphacution presents its position concentration analysis for the entire 25-year 13F record for Fidelity. Here, we are not only looking at the value of the Top 10 positions as a percentage of all 13F positions, but also the fully-loaded Top 10 positions, which means across all reporting entities. We also look at the largest position as a percentage of total position value and the isolated Google / Alphabet values, since Class A and Class C shares were both in the Top 10 for a while. Anyway, long story short: What does it mean when Fidelity doubles its (13F) positions from roughly 5,500 to 10,100 - which in this case is likely all US stocks positions since there is not likely to be much if any short positions - at the same time that the aggregate value of the Top [...]