San Francisco home value priced in IWM
The San Francisco typical home value rose from $428,575 to $1,424,767. In IWM terms, it moved from 9,138 units to 4,750 units—a 48% decline.
- Typical home value (ZHVI)
- San Francisco city
- monthly
- 13 assets
- IWM units per typical home
- 4,750IWM
- Through 2026-08
- Since 2000
- -48.0%
- Cost in IWM
- Home value
- +232.4%
- Full history
- IWM price
- +539.5%
- Full history
| Series | First | Latest | Min | Max |
|---|---|---|---|---|
| IWM units per typical home | 9,138 | 4,750 | 4,720 | 17,973 |
How this is calculated
Home value in USD ÷ IWM month average in USDHousing value as published for the calendar month; asset and FX prices are arithmetic means of their available daily closes in the same calendar month.
Use split-adjusted close for literal share counts; exclude cash-distribution adjustments.
Measure definition
Frequently asked questions
12 answersWhat does San Francisco home value priced in IWM mean?
It is the published home-value measure for San Francisco city divided by the aligned IWM price. The result is the number of IWM units equal to that home value.
Why can the IWM units required fall while the home value rises?
The unit count falls when IWM appreciates faster than the local home-value measure. The two local-currency values can both rise while their ratio declines.
How are the housing and asset observations aligned?
Both inputs use the same calendar month. A page includes only periods with both a housing observation and a valid asset price.
Does the IWM series include reinvested income?
No. The calculation uses the documented price series for literal asset units and excludes dividend-reinvested total returns.
Where do the San Francisco housing and IWM data come from?
Zillow Home Value Index supplies the housing series for San Francisco city. The IWM series uses IWM from the asset source linked beside the chart. Both inputs are converted to USD where required before the ratio is calculated.
How many observations are included?
316 aligned observations are shown from 2000-05-31 through 2026-08-31. All are marked complete.
Can the latest reading change after publication?
Yes. Zillow may revise the full historical ZHVI series when its model or source data changes. The page was derived from housing data fetched on 2026-09-18, and later source revisions can change the result.
What should I conclude from a falling asset-unit cost?
It means IWM appreciated faster than the published San Francisco home-value measure over that interval. It is a relative-price observation, not a claim about affordability, transaction costs, causality, or future performance.
How do currency moves affect the IWM comparison?
The housing measure and IWM are already quoted in USD, so no cross-currency conversion is needed for this page.
Why might the housing observation lag or look smoother than the market price?
Zillow Home Value Index publishes a monthly housing measure based on its own collection and revision process. IWM market prices update more frequently, so the aligned chart can still show a smoother or slower-moving housing series.
Can this ratio be used as a portfolio performance benchmark?
Not on its own. It is a descriptive relative-price series, not a total-return or risk-adjusted benchmark. It excludes income, costs, financing, liquidity, volatility, and investability constraints.
How should I cite this observation?
Cite the PIER20 page and access date, then identify Zillow Home Value Index as the housing source and IWM as the asset series. State that the comparison runs through 2026-08-31 and uses monthly aligned observations.