Below is an interesting slide from the QVG guys, who had their semi-annual presentation webcast today. I think they are reasonable investors. The chart is courtesy of my old Mac Bank account manager, Mark Carew, a broker now at Wilsons—a good guy. What it shows is an assessment of positions in small-cap managers, where MC has gone through the disclosed holdings of small-cap managers and constructed a proxy of small-cap exposure.
How to read the chart: The largest symbols indicate the largest common holdings. As you may be aware, there is much copycat investing and momentum investing amongst small-cap funds. So the largest companies on the chart are HUB, PNI, 360, BRG, GMD (I don't know that one), and a group of second-ranking ones. Disclosure I hold BRG PNI and HUB.
So what? being overheld is not necessarily a reason to sell or even to be fearful. many are the strongest performers over the last year or so. but as Buffet says as the stock stories evolve the investor base moves with it from innovators (those that first see the attractive story), then imitators (self-explanatory), to idiots (those that have missed out and are covering the short or jumping onto the momentum too late. the last mob are invariably "weak hands". that means expect excess volatility in the stocks as these guys get shaken loose. This is bias and outcome i try and mentally prepare for, i accept that usually when you see this crowding, you get seemingly irrational and outsized moves on little new info. all part of investing imo. having a view of the shareholder base and its evolution can help rationalise market responses.
of course, it goes the other way, unheld stuff can be attractive if the numbers keep improving.
