The total value of the portfolio, not the cash balance. Finviro's term: “AUM”.
What these assets are
Assets Under Management (AUM · Assets Under Management) is the total market value of what a fund or institution manages for its clients. It is the standard size measure in asset management, and a careful reader gets more from it than "big or small".
What it tells a market reader
Footprint size: a fund with a hundred billion cannot enter or exit a position in a day. Its flows execute over weeks and leave long traces in prices and volumes (which is what institutional flow reading picks up). And the flexibility limit: a giant cannot touch small stocks at a meaningful size, so some opportunities are structurally reserved for small capital, which is the individual's only real edge over an institution.
And its limits as a quality measure
Size measures past marketing success, not future skill. Assets swell after years of good performance, often right before it fades, because size itself limits the flexibility that produced the returns. "Bigger" means reliable survival and a sturdier operation, not higher returns.
Hypothetical example
A brilliant manager posts exceptional returns on half a billion dollars, and the fund swells to twenty billion in three years. The same strategy (obscure mid-cap stocks) no longer works at that size. The fund is forced toward crowded large caps, and its performance drifts toward the index it used to beat.
Common mistake
Choosing products by size alone. The biggest is not the best performer. Size is a measure of durability, liquidity and fees, and performance is a separate measure to check on its own and over long windows.
Its limits as a quality measure
Size measures past marketing success, not future skill. Assets swell after years of good performance, often just before it fades, because size itself limits the flexibility that produced the returns. "Bigger" means staying power, not higher returns.
Where to see it on the platform
The institutional flows module shows manager sizes within its reading of quarterly filings and the footprints of their flows.
The institutional flows module shows manager sizes within its reading of quarterly filings.
