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ITB, the iShares U.S. Home Construction ETF, was about 30% below its October 18, 2024 all-time high by October 2026 because mortgage rates, affordability and builder incentives weakened the housing cycle. In the year covered by the latest analysis, ITB returned -15% while the earnings of its constituent companies fell about 22%. That faster earnings decline pushed the fund’s trailing price-to-earnings ratio up to 15.4x, above its 13.6x median since 2017, even after the selloff. The figures below use market data through October 20, 2026, and a 30-year mortgage rate through October 22, 2026.
What happened to ITB?
ITB reached an all-time high on October 18, 2024, then set a new low on October 14, 2026. The cited ETF Copilot analysis measured the fund at roughly 30% below that peak two years later. ITB launched in May 2006, lost seven-eighths of its value by March 2009, returned to its launch price in January 2018 and then rose approximately 22-fold from its 2009 low to the October 2024 peak, including dividends. Those historical figures come from the contributor analysis and describe how dramatically the fund can respond to housing-cycle changes; they do not predict its next move.
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The immediate pressure is a combination of expensive mortgages, stretched home affordability and builders paying more to keep sales moving. Because ITB is heavily exposed to builders rather than the entire housing economy, falling orders and shrinking gross margins can affect its earnings quickly.
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Why are mortgage rates hurting homebuilder demand?
Mortgage rates are the main transmission channel from monetary policy to builder revenue. After the Federal Reserve’s first rate cut of that cycle on September 18, 2024, the 30-year mortgage rate briefly reached a low in the Freddie Mac survey, then rose with Treasury yields and moved back above 7% by mid-January 2025. In 2026, the rate dipped below 6% in late February before inflation and oil shocks, a September Federal Reserve rate increase and higher Treasury yields pushed it higher. Freddie Mac’s reported rate was 7.40% in October 2026, the highest since November 2023.
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At that rate, the affordability gap is large. Using the National Association of Realtors’ guideline that a mortgage payment should consume no more than one-quarter of household income, a Benzinga/ETF Copilot calculation estimates that the median existing home requires approximately $110,000 of annual income. The U.S. Census Bureau reported median household income of $87,460 for 2025, leaving the required income about 26% above the median. The same comparison put the gap at 11% in 2006.
Fannie Mae’s October forecast used in the analysis assumed a 30-year mortgage rate of 7.5% through 2027. That is a forecast, not a guaranteed path. PIMCO CIO Dan Ivascyn told the Financial Times on October 9, 2026, that a 6% 10-year Treasury yield was possible, saying, “You can certainly get there.” A Treasury move of that size would be another rate risk for mortgage borrowers, builders and housing-related ETFs.
How are builders protecting sales while losing margin?
Builders are using discounts and financing support to bridge the gap between what homes cost and what buyers can afford. Those incentives can preserve contracts, but they reduce the revenue and margin recognized on each sale.
PulteGroup’s incentive increase
PulteGroup reported incentives equal to 10.4% of sale price in its latest quarter, up from 8.9% a year earlier. Lennar’s gross margin fell by almost two percentage points year over year. The National Association of Home Builders said 65% of builders used sales incentives in October 2026, while its builder-confidence index reached its lowest level since 2012.
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Why rate cuts did not deliver the expected relief
After the 2024 rate-cut turn, PulteGroup CEO Ryan Marshall said it “provides a powerful tool in helping to address the affordability challenge faced by today’s homebuyers.” That logic depends on mortgage rates actually falling. Instead, Treasury yields and inflation pressures pushed mortgage pricing higher, so builders had to provide more help even as financing became less affordable.
Why did builder profits fall faster than ITB?
For the year covered by ETF Copilot’s analysis, ITB returned -15%, while the earnings of its constituent companies declined about 22%. Prices therefore fell less than the profits supporting them. When earnings shrink faster than a share price, the price-to-earnings multiple rises unless the market price falls proportionally more.
| Measure | Latest figure | Comparison or meaning |
|---|---|---|
| One-year ITB return | -15% | ETF Copilot analysis, data through October 20, 2026 |
| Constituent-company earnings change | About -22% | ETF Copilot analysis, same period |
| Trailing P/E | 15.4x | Up from 14.1x a year earlier |
| Long-run P/E reference | 13.6x median | Median since 2017, according to ETF Copilot |
| Forward P/E | 12.8x | Analyst-consensus estimate cited by ETF Copilot; it assumes earnings recover over the next year |
The forward multiple is lower because analysts expect profits to improve. That expectation could make the valuation reasonable if incentives stabilize and orders recover. If margins keep deteriorating, the forward estimate will need to be revised down and the apparent discount can disappear.
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From December 2021 to June 2022, ITB fell 41% while builder earnings were still rising. Its P/E reached 6.1x by September 2022 before the 2023 rebound. In the current episode, profits are falling alongside the ETF, so the earlier rebound pattern is a historical comparison rather than a base-case forecast.
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What does ITB own, and how is XHB different?
ITB is a concentrated, market-cap-weighted expression of U.S. homebuilders. Homebuilders make up about 64% of the fund; D.R. Horton, PulteGroup, NVR and Lennar together account for about 44%. Home Depot, Lowe’s and Sherwin-Williams add approximately 14%, providing exposure to home-improvement retail and building products but not enough to remove the builder concentration.
XHB is structured differently. The cited analysis describes it as close to equally weighted, with a smaller builder allocation alongside building-product manufacturers and retailers. XHB fell less from its 2024 peak and trades at a higher multiple. Kiplinger also characterizes ITB as market-cap weighted and XHB as an alternative structure.
| Comparison | ITB | XHB |
|---|---|---|
| Weighting approach | Market-cap weighted, according to Kiplinger | Close to equally weighted, according to the cited analysis |
| Builder exposure | About 64% | Smaller builder share than ITB |
| Other housing exposure | Retailers and manufacturers are secondary holdings | Building-product manufacturers and retailers have a larger role |
| Recent drawdown from 2024 peak | About 30% below the peak by October 2026 | Fell less than ITB, according to the cited analysis |
| Valuation | 15.4x trailing P/E; 12.8x forward P/E | Higher multiple than ITB, according to the cited analysis |
The choice between the funds is therefore mainly a choice between concentrated builder-margin exposure and a broader, more evenly distributed housing-related basket. A lower drawdown does not automatically mean the diversified structure will outperform in a recovery, and a lower multiple does not remove ITB’s earnings risk.
Is ITB cheap after the 30% decline?
ITB is cheaper on expected earnings than on trailing earnings, but it is not clearly cheap against its own history. The 15.4x trailing P/E is above the 13.6x median since 2017 because profits have contracted faster than the share price. The 12.8x forward P/E is more favorable only if the consensus recovery arrives.
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Investors evaluating that recovery should track the inputs that determine builder margins: mortgage rates, order volume, cancellation rates, home prices, incentives and construction costs. A falling share price can still leave a fund expensive if earnings estimates are falling faster.
What should investors watch next?
The dated catalysts identified in the analysis were September new-home sales, scheduled for release on October 27, the Federal Reserve meeting on October 27–28 and D.R. Horton results on October 29, 2026. These events can update the market’s view of demand, financing conditions and builder margins.
- Mortgage rates: A sustained decline would improve payment affordability; renewed Treasury-yield pressure would do the opposite.
- Sales incentives: Rising incentives can support contract volume while signaling that builders are sacrificing margin.
- Forward earnings: The 12.8x multiple depends on analysts’ recovery assumptions; estimate cuts would raise the effective valuation.
- Housing data: New-home sales and builder confidence show whether affordability is translating into fewer orders.
Market figures in this article are dated through October 20, 2026, and the mortgage-rate figure through October 22, 2026. Conditions can change after those dates. This is market analysis, not investment advice.
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What does ITB’s forward P/E actually assume?
A forward P/E uses projected earnings rather than the profits already reported. For ITB, the 12.8x figure assumes that builder earnings recover over the following year; weaker orders or larger incentives would make that estimate stale and push the multiple higher.
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Could a mortgage-rate decline help builders immediately?
Lower rates can improve a buyer’s monthly payment, but contracts and construction schedules adjust with a lag. The speed of any benefit depends on whether rates stay lower long enough for buyers to qualify and for builders to reduce incentives.
Why might XHB hold up better during a builder downturn?
Its broader mix gives building-product manufacturers and retailers more influence over results, while ITB is driven more directly by builder margins. That diversification can reduce the impact of a single weak builder cycle, although it also means XHB may respond differently to a housing rebound.
Are the 2027 mortgage-rate and Treasury-yield figures reliable predictions?
No. Fannie Mae’s 7.5% mortgage-rate path and Dan Ivascyn’s comments about a possible 6% 10-year Treasury yield are scenarios from named sources, not commitments or guarantees. Inflation, Federal Reserve policy and energy prices can invalidate either view.
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