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Methodology

How this database is built

Sources, refresh cadence, the calculation behind each metric, what a missing figure means, and the limits of all of it.

Where the figures come from

Fund fundamentals come from filings the funds themselves make with the U.S. Securities and Exchange Commission: 10-K and 10-Q reports for business development companies, and N-PORT and N-CEN filings for closed-end funds. Where a figure is traced to a filing, the page shows the form, the reporting period, and the SEC accession number beside it, so it can be looked up by hand.

Prices and profile data come from a market-data provider. Macro series come from FRED, published by the Federal Reserve Bank of St. Louis. Some figures are read from fund sponsors’ own websites. These are labelled third-party data rather than filing-sourced.

How often it refreshes

Ingestion runs on a schedule, and every run is recorded with its own error log so a partial refresh is visible rather than silent. Prices change daily; a fund’s fundamentals change only when it files, and re-fetching a quarterly figure daily would not make it newer. Every figure therefore carries the date of the DATA, not the date we last looked.

How the headline metrics are calculated

Discount / premium to NAVis the market price against the fund’s net asset value per share, as a percentage. A negative figure is a discount; a positive one is a premium.

Distribution rate is the annualised distribution against the market price. It is a rate, not a return: it says nothing about whether the distribution is earned.

Distribution coverageis net investment income against distributions paid, over the same reporting period. It is the figure that speaks to whether a distribution is earned. It is the only METRIC on this site that the word “coverage” names — the word also survives in the /coverage URL, which is kept so existing links do not break.

Z-scoreplaces the current discount against that fund’s own recent discount history — a relative-valuation measure, not a quality one.

These four are the figures the screens and headline tiles run on. Balance-sheet figures shown on a fund’s page — total assets, net assets, leverage, asset coverage — are reported by the fund rather than computed here, and are shown as filed.

What a missing figure means

An em dash () means we hold no value for that metric. It does not mean zero — a figure that is genuinely zero shows as 0.00.

A screen with a numeric limit excludes funds with no value for that metric rather than guessing one, so every fund a screen returns has the figure it was screened on.

Data status

Available — the symbol has database-backed figures behind it, from a provider or a reviewed public-source backfill. Sample— an identity page exists while one or more market fields are still incomplete, and the figures shown are illustrative rather than the fund’s reported data. Tracked — the symbol is in the monitored universe; this should not be read as complete research coverage.

The status describes the symbol, not each figure on it: a metric can still be absent on a symbol marked Available, and shows as an em dash when it is.

Freshness

Filing-sourced figures are judged on their reporting cycle, not their age in days: the question is whether a newer figure should exist yet. A quarterly figure is current until a later period has closed and passed its 90-day filing deadline, prior period once one has, and stale beyond that.

Market figures are judged in days: current within 4, which covers a long weekend.

Corrections

When a figure here is wrong, we would rather know. Report it to hello@histometrics.com with the ticker and the figure. We fix the ingestion or the calculation rather than the page, so the same fault does not come back on the next refresh. Where a source restates a figure, the new value replaces it and the as-of date moves with it.

What this does not do

This is a database and a research tool. It is not investment advice, not a recommendation to buy or sell anything, and not a substitute for a fund’s own filings and prospectus. Figures are prepared for a professional to review before they are used with a client.

Nothing here is audited and no figure carries a verification badge. Filing-sourced figures carry their form, period and accession number so you can check them; provider and sponsor figures carry the page’s as-of date and are labelled third-party data. Coverage is uneven — the data status on each row and the per-metric em dashes tell you where.

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