Updated May 23, 2026 · 798 articles
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Educational guides about 13F filings, insider trading, institutional investing, and how to track smart money moves.
How to Read an Income Fund's 13F: Yield Over Growth
Income-focused funds buy for distributions, not appreciation - clustering in MLPs, utilities, and REITs. Reading their 13Fs means judging by yield and cash flow, not growth.
Sarah MitchellWhat a T-Bill ETF in a 13F Signals: Cash and Caution
When a stock manager's largest holding is a Treasury-bill ETF, it is parking cash in plain sight. Here is how to read a cash-equivalent position in a 13F.
Sarah MitchellHow a Sector Specialist Rotates Within Its Own Sector
A sector-specialist fund rarely leaves its sector - it rotates within it, between sub-industries. Reading those intra-sector moves is a finer signal than 'bullish or bearish on tech.'
Sarah MitchellWhen a Fund's Position Count Jumps: Reading Re-Risking
When a fund's number of holdings suddenly jumps - say 17 to 38 in a quarter - it often signals a manager re-engaging and putting cash to work. Here is how to read the expansion.
Sarah MitchellWhat a Gold ETF in a 13F Signals: Reading the Hedge
When an equity manager holds a gold ETF among its largest positions, it is usually making a deliberate statement about inflation and market risk. Here is how to read it.
Sarah MitchellHow to Read an Event-Driven Fund's 13F
Event-driven funds bet on specific corporate catalysts - mergers, spinoffs, restructurings - and often park a huge index ETF on top. Here is how to read past the overlay to the real bets.
Sarah MitchellWhen No Holding Dominates: Reading a Flat 13F Book
Some funds have no anchor position - the largest holding is only 5% and the weights stay flat across the book. That structure is a signal about strategy. Here is how to read it.
Sarah MitchellReading a Macro Investor's 13F: Themes, Not Stock Picks
A global-macro investor's 13F looks nothing like a stock-picker's - ETFs used as exposure dials, convertibles, eclectic sector bets. Here is how to read a top-down book.
Sarah MitchellHow to Read a Contrarian Fund That Bets Against the Crowd
Some managers build their edge by owning what everyone else avoids and fading the most crowded trades. Here is how to spot a contrarian 13F and weigh its anti-consensus bets.
Sarah MitchellHow to Read a Hard-Asset Fund's 13F: Land and Royalties
Some funds build their entire 13F around land, royalties, gold, and Bitcoin - bets on scarcity and inflation rather than earnings growth. Here is how to read these distinctive portfolios.
Sarah MitchellWhen a Fund Owns Another Famous Investor's Vehicle
Some 13Fs list another investor's publicly traded vehicle - like Markel holding Berkshire Hathaway - as a top position. Here is what these 'investor-of-investor' stakes signal.
Sarah MitchellWhy Concentrated Funds' 13F Values Swing the Most
A fund with a handful of large positions can see its reported 13F value lurch 20% or more in a quarter without trading at all. Here is why concentration amplifies the swings - and the noise.
Sarah MitchellThe One Buy Among Many Sells: Reading the Exception
When a fund trims most of its book in a quarter but adds to a single name, that lone purchase is often its clearest conviction signal. Here is why the exception matters more than the cuts.
Sarah MitchellWhen a Fund Trims Everything: De-Gross, Outflows, or Fear
Seeing a manager cut nearly every holding in one quarter looks alarming, but there are three very different causes - and only one of them is bearish. Here is how to tell them apart.
Sarah MitchellConsensus Selling: When Many Funds Trim the Same Stock
Investors study consensus buying to find institutional favorites. The mirror image - when many independent managers trim the same name in one quarter - is a signal too, and a trickier one to read.
Sarah MitchellTrim vs Exit: Why Cutting a Winner Isn't Bearish
A fund reducing a position is not the same as a fund leaving it. Confusing a trim with an exit is one of the most common 13F reading errors. Here is how to tell them apart.
Sarah MitchellWhen a 13F Is Mostly One Stock: Reading Controlling Stakes
Some institutions report a 13F where a single company is 80% or 90% of the book. That is almost never a stock pick - it's a controlling or strategic stake. Here is how to read those filings.
Sarah MitchellHow a Spot-Bitcoin ETF Shows Up in Institutional 13Fs
Since spot-Bitcoin ETFs launched, they have started appearing in the 13Fs of hedge funds, pensions, and even sovereign wealth funds. Here is how to read those positions - and what they do and don't signal.
Sarah MitchellHow Foreign Stocks Show Up in a US 13F - and What's Hidden
Foreign companies appear in US 13Fs through ADRs and US-listed shares, but a global manager's filing captures only its US-listed sleeve. Here is what's in the data and what isn't.
Sarah MitchellA Fund's Biggest Holding vs Its Biggest Buy: Read Both
A fund's largest position often got there by appreciating, not by recent buying. To see where a manager's fresh conviction is, look at its biggest add instead. The two answer different questions.
Sarah Mitchell