REM ETF top holdings breakdown: weights, concentration and coverage

REM - the iShares Mortgage Real Estate Capped ETF - packages the US mortgage REIT sector into one listed instrument, tracking the FTSE Nareit All Mortgage Capped Index since its May 1, 2007 inception. Yahoo Finance's REM record opens the fund up row by row: a holdings table with three visible columns - Symbol, Company and % Assets - covering the ten largest positions.

Heavily, and the table above makes the shape legible at a glance. The top two names - Annaly Capital Management at 25.74% and AGNC Investment at 16.67% - together hold 42.41% of assets, so more than two fifths of the fund moves with two balance sheets. The top five reach 59.99%, a whisker under 60 cents of every dollar, and Annaly alone outweighs third-place Starwood Property Trust by more than three to one (25.74% versus 7.63%).

Below the table the tail is thin: the ten names listed account for 77.86%, leaving 22.14% spread across every other constituent the fund holds. Two practical consequences follow. First, single-name research pays - understanding Annaly and AGNC explains most of REM's day-to-day variance. Second, this is a concentrated proxy rather than a broad index fund despite the word Capped in the tracked index's name, so treat weight drift between rebalances as part of the instrument's behavior.

Benchmark the payout before you rely on it: Yahoo showed REM yielding 9.00% alongside the August 18, 2026 close, while Nareit's Mortgage REIT Sector Overview reports the FTSE Russell aggregate at 13.14% across roughly 30 tracked vehicles as of 7/31/2026. The two figures carry different as-of dates and different baskets, and closing that gap - fund construction versus the whole listed sector - is exactly what the sources in the next sections are for.

Not complete - and the ceiling is worth knowing before you build on it. Coverage granularity is one aggregate instrument plus a topHoldings array of exactly 10 rows: no full constituent list, no bond-level detail, and a sectorWeightings field collapsed to Real Estate at 100.00%, which tells you nothing about whether a given weight finances agency home loans or commercial credit. The other 22.14% of assets sits in positions the record never names.

Within that ceiling the record earns its keep: ten named weights covering 77.86% of assets, the fund-profile block beside them, and a price series to timestamp every observation. Datadory scores it 7 out of 10 - strong on weights and fund economics, capped by the ten-row boundary. Anything needing the long tail or a sub-sector split moves to the Nareit surfaces in the next sections, which pick up exactly where the array stops.

No - and that gap follows directly from the ten-row ceiling covered above. The basket itself spans agency home-loan names and commercial-credit names, but the record never labels which is which, so classifying each ticker means leaving Yahoo.

A five-step workflow turns a single observation of the fund into a defensible breakdown:

Run end to end, the loop closes cleanly: weights, fund economics, sector returns and rate context each land with their own as-of date stamped, so every comparison carries its vintage with it.

Three personas lean on it hardest. Rates traders use the top-two concentration - 42.41% of assets in Annaly and AGNC combined - to express a view on agency mREIT spread behavior with a two-name hedge instead of ten. Income allocators set the fund's 9.00% yield against the FTSE Russell aggregate's 13.14% (7/31/2026) before deciding whether the concentrated basket or the whole listed sector fits a payout target. Quant modelers take the ten-row weight vector plus the fund-profile fields as a compact input to factor work on the mortgage REIT complex, then widen the sample with Nareit's monthly index history when one instrument is too narrow.