Short Answer

Both the model and the market overwhelmingly agree that inflation will be at least 3% this year.

1. Market Behavior & Drivers

This prediction market has demonstrated a stable, sideways trend with a strong bullish bias, trading within a very narrow range between 96.3% and 99.2%. The market opened at 97.2% and has since solidified its position at the top of this range, currently priced at 99.1%. The most notable price movement occurred between April 26 and April 30, when the probability jumped from 97.2% to 99.0%. This increase in market confidence appears to be linked to an April 29 report from Goldman Sachs, which is described as forecasting higher inflation. The market seems to have absorbed this new information, reinforcing the already high probability.
The total trading volume of 5,169 contracts suggests moderate but not overwhelming activity over the market's life. The sample data points show zero volume during key periods, which indicates that the high price reflects a settled consensus rather than being driven by recent, heavy trading. This pattern suggests that traders who believe in a high inflation outcome entered their positions and are now holding with high conviction, with few sellers willing to challenge the prevailing sentiment.
The price action establishes a clear support level around the 96.3% mark, representing the floor of market confidence. The upper end of the range, near 99%, has acted as a ceiling. Overall, the chart indicates an extremely high degree of market certainty that the year's peak inflation will meet the conditions for a "YES" resolution. The persistent high price, coupled with the reaction to external economic forecasts, reflects a strong and unwavering consensus among market participants.
  • Expert forecasts anticipate inflation to remain elevated or slightly increase.
  • Energy prices and tariffs are expected to drive elevated inflation.
  • The CPI's shelter component likely decelerates through 2026.
  • Ameriprise forecasts inflation could peak around 3.5% in Q2 2026.
  • PIIE's analysis suggests inflation may exceed 4% by end of 2026.
  • March 2026 inflation increase was linked to energy costs and Iran conflict.

Who Wins and Why

Outcome Market Model Why
At least 4% 91.3% 90.0% PIIE's analysis suggests inflation could exceed 4% by the end of 2026.
At least 3.5% 99.1% 98.9% Ameriprise forecasts inflation could peak around 3.5% in Q2 2026.
At least 4.5% 56.8% 50.1% Expert forecasts anticipate inflation will remain elevated, driven by energy prices.
At least 5% 34.0% 29.5% Tariffs are expected to drive inflation higher, despite shelter component deceleration.
At least 5.5% 16.5% 14.6% Inflation is generally anticipated to remain elevated or slightly increase from current levels.

Current Context

Current inflation metrics set the stage for 2026 peak forecasts. As of March 2026, U.S. headline CPI (CPI-U, all items) inflation was +3.3% year-over-year, while core CPI (excluding food and energy) stood at +2.6% year-over-year [1][2]. The Federal Reserve’s March 2026 Summary of Economic Projections indicated a median forecast of 2.7% for both headline and core PCE inflation for 2026 [3][4].
Major economic institutions forecast higher inflation due to external factors. Goldman Sachs, in an April 29, 2026 report, anticipates headline PCE inflation reaching 3.4% and core PCE at 2.6% by December 2026, attributing this revision partly to increased oil and energy prices from the U.S.-Iran situation [5][6]. Similarly, the PIIE’s April 9, 2026 projection sees U.S. PCE inflation rising to 3.2% in Q4 2026 (year-over-year) and core inflation reaching 3.1%, explicitly linking this upward path to an energy shock expected to pass through in upcoming quarters [7].
Prediction markets suggest inflation peaks above current levels are likely. Kalshi’s “How high will inflation get this year?” market indicates a relatively high probability of CPI year-over-year reaching at least 4% in 2026, with significantly lower likelihood assigned to higher thresholds [8]. Concurrently, Polymarket’s “How high will inflation get in 2026?” market shows outcomes largely clustering around figures above 3% [9].
Sources (9)
  1. 1Latest Numbers: U.S. Bureau of Labor Statisticsbls.gov
  2. 2Consumer Price Index News Release - 2026 M03 Resultsbls.gov
  3. 3Federal Reserve: Raises U.S. GDP growth forecast, raises PCE inflation expectations for this year and next, raises unemployment rate forecast for next yearlongbridge.com
  4. 4The Fed - March 18, 2026: FOMC Projections materials, accessible versionfederalreserve.gov
  5. 5Goldman Sachs lifts 2026 PCE inflation forecast amid ongoing U.S.-Iran deadlock By Investingng.investing.com
  6. 6Goldman just released its inflation playbook for the rest of 2026 - TheStreetthestreet.com
  7. 7Global economy to slow in 2026, and outlook clouded by war, other uncertainties | PIIEpiie.com
  8. 8How high will inflation get this year? Odds & Predictions 2026kalshi.com
  9. 9How high will inflation get in 2026? Predictions & Odds | Polymarketpolymarket.com

2. Price Chart

Historical Price (Probability)

Outcome probability
Date

3. Significant Price Movements

Notable price changes detected in the chart, along with research into what caused each movement.

Outcome: At least 5.5%

📉 May 08, 2026: 9.3pp drop

Price decreased from 25.3% to 16.0%

What happened: The provided web research does not identify a primary driver for the 9.3 percentage point drop in the prediction market outcome "At least 5.5%" on May 08, 2026. No social media activity from key figures or viral narratives related to this specific price movement was found. While Goldman Sachs released research on May 8, 2026, discussing "The Outlook for the US Consumer amid Rising Inflation" and the impact of higher energy and food costs, it did not specify a 5.5% inflation rate for 2026 or a 9.3 percentage point drop [1]. Therefore, social media was irrelevant, and no clear traditional news or market structure driver could be identified from the available information.

Outcome: At least 4%

📈 April 29, 2026: 13.8pp spike

Price increased from 67.7% to 81.5%

What happened: The available information does not specify a direct social media post or viral narrative that immediately preceded the 13.8 percentage point spike on April 29, 2026. However, Trading Economics' expectation for the U.S. inflation rate to reach 3.90% by the end of the second quarter of 2026, closely approaching the 4% outcome, likely served as a significant contributing factor [2]. This forecast, alongside broader concerns about increasing U.S. inflation due to factors such as an expanding fiscal deficit and tighter labor market, may have influenced market sentiment [3]. In this instance, social media's role appears to be mostly noise or irrelevant, as no specific activity driving the spike was identified.

Outcome: At least 4.5%

📈 April 28, 2026: 8.6pp spike

Price increased from 36.6% to 45.2%

What happened: The primary driver of the prediction market price spike was likely traditional news reporting escalating inflation figures. The CNBC report on April 10, 2026, announcing March CPI rose to 3.3% year over year (up from 2.4% in February) and attributing it to the Iran war with effects expected to "take weeks or months to unwind," provided clear evidence of accelerating and persistent inflationary pressure [4]. This report, appearing 18 days before the price spike, combined with an earlier OECD forecast placing U.S. inflation at 4.2% for 2026 [5], prompted market participants to revise their expectations, anticipating inflation could reach or exceed 4.5%. No social media activity was identified as a primary driver or significant accelerant based on the provided research.
Sources (5)
  1. 1goldmansachs.com
  2. 2tradingeconomics.com
  3. 3piie.com
  4. 4Here's the inflation breakdown for March 2026 — in one chartcnbc.com
  5. 5Global forecasting group sees U.S. inflation at 4.2% this year, much higher than Fed estimatecnbc.com

4. Market Data

Contract Snapshot

This market resolves to Yes if year-over-year CPI inflation is at least 4.5% in any month during 2026, as verified by the Bureau of Labor Statistics; otherwise, it resolves to No. The market opened on January 15, 2026, and will close the day following the qualifying event (at 8:31am ET) or by February 14, 2027, at 8:29am EST if the event does not occur. Insider trading by employees of source agencies or those with material non-public information is prohibited.

Available Contracts

Market options and current pricing

Outcome bucket Yes (price) No (price) Last trade probability
At least 3.5% $0.99 $0.01 99%
At least 4% $0.91 $0.09 91%
At least 4.5% $0.57 $0.43 57%
At least 5% $0.34 $0.67 34%
At least 5.5% $0.27 $0.83 17%
At least 6.0% $0.16 $0.87 14%
At least 6.5% $0.07 $0.94 7%

Market Discussion

The Cleveland Fed's April 30 nowcast projected Q2 annualized CPI at 6.43%, with March 2026 TTM CPI at 3.3% [1]. The OECD estimates US inflation will reach 4.2% in 2026 [2], and the PIIE suggests it is likely to exceed 4% by the end of 2026, driven by factors such as tariffs and fiscal policy [3]. While social sentiment indicates 12-month inflation expectations surpassing 5.2% [4], Polymarket traders mostly expect CPI to maximize above 3% in 2026, with a low probability of exceeding 4% [5].

Sources (5)
  1. 1Yikes! The Federal Reserve's April and Quarterly Annualized Inflation Forecast Was Just Updated -- and It Isn't Pretty | The Motley Foolfool.com
  2. 2Global forecasting group sees U.S. inflation at 4.2% this year, much higher than Fed estimatecnbc.com
  3. 3The risk of higher US inflation in 2026 | PIIEpiie.com
  4. 412 month inflation expectation is hitting above 5.2% ( highest since March 2023 ) the market is going from pricing in rates to rate hikes 😭😭😪 who ever is going into the Fed after Powell is about to have one hell of a ride in cutting rates.threads.com
  5. 5Polymarket Odds: How high will inflation get in 2026? (AI Predictions)polychances.com

5. Trust Index

Octagon Trust Index Kalshi 67 Caution

Scheduled statistical release: the agency holds the number before publication

Integrity risk· Information exposure

How it adds up
Integrity80% of score70Good

Info fairness is low (40), but Integrity averages all three scores, so the other two pull it up. Only a critically low score would cap the total.

Trade quality20% of score53Caution

Includes the cost to trade: a $10,000 order can't be filled here because the order book is too thin.

Trust score67Caution

Weighted blend with hard caps — a critically weak safety pillar, or a severe trading anomaly, caps the total regardless of the rest. Full methodology · About the Trust Index

Trust profile
Integrity4 screens run · 3 don't apply · 3 awaiting data
Market integrity
86Strong

Outcome is hard to influence

Thin-volume movesTrade signals · high confidence

“At least 6.5%” made a large jump with almost no trading behind it.

Screened clean
Large tradesNo single trade dominates the tape. Clear
Size patternsNo distribution read Clear
2 screens not run
Outcome control · doesn't apply to this market type
Thin-leg conviction · doesn't apply to this market type
Info fairness
40High Risk
Information exposureStructural risk · medium confidence

Scheduled statistical release: the agency holds the number before publication

4 screens not run
Move vs. catalyst · data source not connected
Longshot repricing · data source not connected
Pre-broadcast certainty · doesn't apply to this market type
Cross-venue timing · data source not connected
Resolution quality
92Strong

Resolution mechanism is dependable

No suspicious activity on any screen

Resolution rules read: Clear

Liquidity
62Tradeable

Fills fine at modest size

6 contracts · worst first

At least 6.5%4
Very thin · low confidence

Light recent trading — size may not fill near the screen price.

At least 5.5%6
Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 1% vs realized 22%
At least 7.0%54
Thin · low confidence

Light recent trading — size may not fill near the screen price.

At least 5.0%65
Tradeable · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 35% vs realized 1%
At least 4.5%74
Tradeable · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 14% vs realized 1%
At least 6.0%—
No recent trading to measure

No recent trading to measure

Move quality
63Mostly confirmed

Most moves carried real volume

6 contracts · worst first

At least 7.0%35
Unconfirmed · medium confidence

Unconfirmed move — light volume and/or it has partly reverted.

At least 5.5%60
Mostly confirmed · high confidence

Volume opposes the move over 6h

At least 6.0%75
Confirmed · medium confidence

Volume is light/neutral for the move over 3d

At least 6.5%75
Confirmed · medium confidence

Volume is light/neutral for the move over 3d

At least 4.5%—
No significant move (6h)

Price was stable over the last 6 hours.

At least 5.0%—
No significant move (24h)

Price was stable over the last 24 hours.

Rule clarity
100Clear

Counts toward Resolution quality, not here

6 contracts · worst first

At least 4.5%100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 5.0%100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 5.5%100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 6.0%100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 6.5%100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 7.0%100
Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
Trade quality
53Caution

Order book is thin

Tradable, but expect execution cost beyond small sizes.

Outcome quality 68 (notional-weighted across 5 scored legs)

$100 order: 3.8c slippage (~15% of a 24.6c contract)

$1,000 order: 6.3c slippage (~26% of a 24.6c contract)

$10,000 order: book too thin to fill

At least 4.5%74Market scoreLiquidity74Move quality–Rule clarity100
Why 74
Liquidity
74 · Tradeable · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 14% vs realized 1%
Move quality
No significant move (6h)

Price was stable over the last 6 hours.

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 5.0%65Market scoreLiquidity65Move quality–Rule clarity100
Why 65
Liquidity
65 · Tradeable · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 35% vs realized 1%
Move quality
No significant move (24h)

Price was stable over the last 24 hours.

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 5.5%6Market scoreLiquidity6Move quality60Rule clarity100
Why 6
Liquidity
6 · Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Book spread 1% vs realized 22%
Move quality
60 · Mostly confirmed · high confidence

Volume opposes the move over 6h

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 6.0%–Market scoreLiquidity–Move quality75Rule clarity100
Why this score
Liquidity
No recent trading to measure

No recent trading to measure

Move quality
75 · Confirmed · medium confidence

Volume is light/neutral for the move over 3d

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 6.5%4Market scoreLiquidity4Move quality75Rule clarity100
Why 4
Liquidity
4 · Very thin · low confidence

Light recent trading — size may not fill near the screen price.

Move quality
75 · Confirmed · medium confidence

Volume is light/neutral for the move over 3d

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear
At least 7.0%40Market scoreLiquidity54Move quality35Rule clarity100
Why 40
Liquidity
54 · Thin · low confidence

Light recent trading — size may not fill near the screen price.

Move quality
35 · Unconfirmed · medium confidence

Unconfirmed move — light volume and/or it has partly reverted.

Rule clarity
100 · Clear · high confidence

All checks pass

objective outcome · Clearofficial source · Cleartime boundary · Clear

underwriting_v1.4 · computed Sep 23, 2026

6. Which specific labor market data from the BLS in H2 2026 could signal persistent wage growth, potentially altering the Federal Reserve's policy stance?

ECI Q2 2026 ReleaseJuly 31 2026 [1][2]
ECI Q3 2026 ReleaseOctober 30 2026 [1][2]
CPS Usual Weekly EarningsQuarterly releases [3]
To identify persistent wage growth in the second half of 2026, direct wage measures are key. The Employment Cost Index (ECI) offers a direct measure of labor costs, with scheduled releases for Q2 2026 on July 31, 2026, and Q3 2026 on October 30, 2026, providing the 12-month wage growth rate [1][2]. Sustained growth in both nominal and constant-dollar (inflation-adjusted) wages and salaries reported by the ECI would strongly signal persistence [4]. Additionally, the Current Employment Statistics (CES) program's monthly real and nominal average hourly earnings are important indicators; continuous positive trends in real average hourly earnings alongside nominal gains suggest ongoing wage pressures [5][6]. The CES also tracks average hourly earnings by industry, which can indicate if wage growth is becoming broad-based across sectors [7].
Other labor data reinforce wage growth trends effectively. Beyond direct wage measures, additional labor market data can interact with and strengthen signals of persistent wage growth. Job openings data from the monthly Job Openings and Labor Turnover Survey (JOLTS) releases, such as for May 2026 released on June 30, 2026, are relevant; if hiring conditions remain tight while wage indicators stay elevated, it supports the case for persistent wage growth [8]. Furthermore, the BLS publishes quarterly Current Population Survey (CPS)-based "usual weekly earnings of wage and salary workers." Renewed upward movements in median or distributional usual weekly earnings during H2 2026 would provide additional evidence of broad earnings persistence beyond just average hourly figures [3].
Sources (8)
  1. 1Schedule of Releases for the Employment Cost Indexbls.gov
  2. 2Employment Cost Index Summary - 2026 Q01 Resultsbls.gov
  3. 3Usual Weekly Earnings of Wage and Salary Workers - 2026 Q01 Resultsbls.gov
  4. 4Employment Cost Index News Release - 2026 Q01 Resultsbls.gov
  5. 5Real average hourly earnings up 1.4 percent over the 12 months ending February 2026: The Economics Daily: U.S. Bureau of Labor Statisticsbls.gov
  6. 6Real Earnings News Release - 2026 M03 Resultsbls.gov
  7. 7Table B-3. Average hourly and weekly earnings of all employees on private nonfarm payrolls by industry sector, seasonally adjusted - 2026 M03 Resultsbls.gov
  8. 8Schedule of Releases for the Job Openings and Labor Turnover Surveybls.gov

7. What key components of the Consumer Price Index (CPI) are forecast by major banks to drive inflation above the Federal Reserve's PCE projections in 2026?

PCE Inflation Projection (2026)2.6% (2026) [1]
Core PCE Central Tendency (2026)2.5–2.8% (2026) [1]
Headline CPI Re-accelerationApril 2026 via energy [2]
Major banks predict CPI components will exceed Fed's 2026 inflation targets. Key components of the Consumer Price Index (CPI), including energy, tariff-related costs in goods, core services, and rent adjustments, are expected to push inflation above the Federal Reserve's PCE projections for 2026 [1]. The Fed’s March 2026 SEP projects PCE inflation at 2.6% for 2026, with core PCE ranging 2.5–2.8% [1]. Energy is identified as a significant driver. Wells Fargo anticipates "firmer inflation ahead" due to elevated oil and fuel prices, partly attributing this to an unresolved situation in the Middle East [3]. Goldman Sachs links a substantial portion of the early-2026 headline CPI and PCE increase to an energy spike from a potential conflict involving Iran [4][5]. A banking scenario further connects a large monthly increase in energy prices to an Iran-war-related event, impacting headline CPI in April 2026 [2].
Tariffs, services, and rent will also contribute to higher CPI. Wells Fargo highlights a "staggered pass through of tariff-related costs," anticipating that goods will advance at a faster pace than pre-pandemic levels, with tariff effects impacting core goods and transportation [6][7]. Goldman Sachs acknowledges that tariff passthrough to consumer prices has significantly boosted core inflation, though it expects this effect to decelerate as passthrough cycles conclude [4][5]. Furthermore, a banking scenario suggests that core CPI could re-accelerate partly due to adjustments in core services and rent [2].
Sources (7)
  1. 1The Fed - March 18, 2026: FOMC Projections materials, accessible versionfederalreserve.gov
  2. 2Bank of America Sees April Headline CPI Rising 0.5% as Energy Prices Surgetradevae.com
  3. 3Wells Fargo - U.S. Economic Outlook: April 2026wellsfargo.bluematrix.com
  4. 4Goldman just released its inflation playbook for the rest of 2026 - TheStreetthestreet.com
  5. 5Goldman just released its inflation playbook for the rest of 2026 - AOLaol.com
  6. 6https://wellsfargo.bluematrix.com/links2/pdf/f3e4e372-f3aa-4f63-8ec1-dbe65d62b8fewellsfargo.bluematrix.com
  7. 7Wells Fargo - February CPI Preview: Disinflation Progress Looks to Be Stalling Againwellsfargo.bluematrix.com

8. How do Goldman Sachs' and PIIE's Q4 2026 inflation forecasts differ in their assumptions about energy prices versus core services inflation?

Goldman Sachs Core PCE Forecast2.1% y/y (Dec 2026) [1][2][3][4][5]
PIIE US Core PCE Forecast3.1% Q4/Q4 2026 [1][2][3][4][5]
Goldman Sachs Brent Crude Forecast$80/bbl in Q4 2026 [1][6]
Goldman Sachs and PIIE project divergent Q4 2026 core inflation rates. Goldman Sachs forecasts Q4 2026 core Personal Consumption Expenditures (PCE) at 2.1% year-over-year (December 2026), while PIIE projects 3.1% Q4/Q4 2026 [1][2][3][4][5]. These variations primarily stem from distinct assumptions regarding future energy prices and the trajectory of core services inflation [1][4][5][6][7].
Goldman Sachs anticipates declining energy prices and low core services inflation. The firm projects Brent crude prices to decrease to $80 per barrel by Q4 2026, a notable decline from previous peaks exceeding $100 [1][6]. This outlook is implicitly linked to an expectation of lower core services inflation, contributing to its overall projected decline in core PCE [1][6].
PIIE expects elevated energy prices and specific core services inflation drivers. Conversely, PIIE's projections are based on the assumption that energy prices will remain elevated into 2026, staying 30-40% above pre-war levels, though receding based on futures forecasts [4][7][5]. PIIE also attributes higher core services inflation to specific factors, including 10% home healthcare wage growth and persistent labor shortages [4][7][5].
Sources (7)
  1. 1Goldman just released its inflation playbook for the rest of 2026 - TheStreetthestreet.com
  2. 2US GDP Growth Is Projected to Outperform Economist Forecasts in 2026 | Goldman Sachsclick.gs.com
  3. 3Goldman Sachs 2026 US Economic Outlook - TightSpreadstightspreads.substack.com
  4. 4PIIE releases Spring 2026 Global Economic Prospects, highlighting Middle East conflict’s impact on US growth, inflation, and energy priceseconomy.shepherdgazette.com
  5. 5Global economy to slow in 2026, and outlook clouded by war, other uncertainties | PIIEpiie.com
  6. 6The Outlook for the US Consumer amid Rising Inflation | Goldman Sachsgoldmansachs.com
  7. 7The risk of higher US inflation in 2026 | PIIEpiie.com

9. Which months in 2026 have the most significant base effects from 2025's CPI readings, and how are BLS seasonal adjustments expected to influence the headline numbers?

2026 Base Effect RankingNot available from 2025 CPI readings [1][2][3]
Seasonal Adjustment Factor UpdateAnnually with the January CPI release [4][5]
Revised 2021-2025 Seasonal Factors PublicationFebruary 13, 2026 [4][5]
The research cannot identify specific months with significant 2026 base effects. Determining which months in 2026 will experience the most significant base effects from 2025 CPI readings is not possible with the available research [1][2][3]. Such an analysis would require direct access to the U.S. Bureau of Labor Statistics (BLS) archives to retrieve the unadjusted CPI level for each corresponding month of 2025, as base effects are calculated using these year-ago unadjusted figures [1][2][3].
The BLS annually updates its CPI seasonal adjustment factors. These updates occur with the release of the January Consumer Price Index (CPI) report, incorporating price movements from the preceding calendar year [4][5]. Specifically, updated seasonal factors, covering price movements from January 2021 through December 2025, are scheduled for publication on February 13, 2026 [4][5]. Following this release, these newly updated factors will be applied to the 2026 CPI data for seasonal adjustment purposes [4][5]. The BLS CPI news releases consistently report headline CPI-U all items, showing both monthly and 12-month changes in both seasonally adjusted and unadjusted formats [6][7].
Sources (7)
  1. 1Bureau of Labor Statistics Datadata.bls.gov
  2. 2Consumer Price Index News Release - 2025 M12 Resultsbls.gov
  3. 3Consumer Price Index News Release - 2025 M05 Resultsbls.gov
  4. 4Updated seasonal factors introduced February 13, 2026: U.S. Bureau of Labor Statisticsbls.gov
  5. 5https://www.bls.gov/news.release/pdf/cpi.pdfbls.gov
  6. 6Consumer Price Index News Release - 2026 M03 Resultsbls.gov
  7. 7Consumer Price Index Summary - 2026 M03 Resultsbls.gov

10. Do leading housing market indicators from Zillow and Case-Shiller suggest the CPI's shelter component will decelerate or re-accelerate through 2026?

Zillow OER Forecast 20262.94% [1]
Zillow CPI Shelter (Rent) Forecast2.6% annually (April 2026 forecast) [1]
Case-Shiller Index Growth RateDecreased (falling short of forecasts) [2]
Leading housing market indicators from Zillow and the Case-Shiller index strongly suggest that the CPI's shelter component will decelerate through 2026. Zillow forecasts Owners' Equivalent Rent (OER) to increase by 2.94% over 2026, marking a deceleration from the 3.36% rise observed in 2025 [1]. This anticipated slowdown is primarily attributed to several factors, including continued moderation in market rents, an increase in rental supply, and a stagnant job market [1][3][4].
Zillow anticipates significant moderation in both single-family and multifamily rent growth. Zillow's revised expectations for on-market rent growth predict a 2.0% year-over-year increase for single-family units by the end of 2026, while multifamily rents are expected to moderate to a 1.0% year-over-year increase during the same period [1]. Other reports from Zillow indicate even lower forecasts, projecting single-family rents to rise by 1.1% and multifamily rents to remain mostly flat or even slightly decline (-0.2%) by the end of 2026 [5]. Zillow's latest CPI shelter forecast for April 2026 projects annual rent inflation at 2.6% and OER inflation at 3.2%, which contrasts with the 3.0% year-over-year increase recorded by the CPI shelter index in March 2026 [1][6].
Declining Case-Shiller home price growth supports a decelerating CPI shelter trend. The latest data indicates a decrease in the Case-Shiller index's growth rate, falling short of anticipated forecasts [2]. While this index directly measures home prices rather than rents, a slowing in home price appreciation generally aligns with a decelerating trend in the CPI shelter component [7][8]. This correlation is particularly relevant for Owners' Equivalent Rent, as it reflects the implicit rent homeowners would pay [7][8].
Sources (8)
  1. 1zillow.com
  2. 2investing.com
  3. 3zillow.com
  4. 4zillow.com
  5. 5zillow.com
  6. 6bls.gov
  7. 7substack.comcalculatedrisk.substack.com
  8. 8acheroninsights.com

11. What Could Change the Odds

Key Catalysts

US CPI-U inflation was 3.3% year-over-year in March 2026 [1][2], following a 2.4% year-over-year rate in February [1], with the March increase attributed largely to energy costs tied to the Iran conflict [1]. A forecast published in April 2026 stated that if energy conditions play out as expected, inflation could peak around +3.5% in Q2 2026, with the path highly dependent on the Iran situation and Strait of Hormuz conditions [3].
The Federal Reserve's March 18, 2026 SEP indicates that median PCE inflation for 2026 is 2.2% and median core PCE inflation for 2026 is 2.2%, consistent with a fade in temporary shocks rather than a sustained inflation surge [4]. Fed communications emphasize that higher energy prices add near-term upward pressure but that attention should return to underlying inflation as those effects unwind; Governor Waller additionally described underlying inflation, excluding tariff effects, as running close to 2% [5][6]. However, PIIE's analysis argues inflation could exceed 4% by the end of 2026, outweighing consensus disinflation trends due to lagged tariff effects, potentially expansionary fiscal policy where the deficit could exceed 7% of GDP this year, tighter labor-market effects, and drifting inflation expectations [7].
Prediction markets also highlight key dates, with Polymarket's April 2026 CPI monthly market resolving to the one-month % change in seasonally adjusted CPI-U for April 2026, using BLS's scheduled release time of May 12, 2026 at 8:30 AM ET as the resolution source [8].

Key Dates & Catalysts

  • Expiration: February 28, 2027
  • Closes: February 14, 2027
Sources (8)
  1. 1Consumer Price Index News Release - 2026 M03 Resultsbls.gov
  2. 2CPI inflation report March 2026: Consumer prices rose 3.3%cnbc.com
  3. 3Why inflation is rising again - Jon Pearlstein | Ameriprise Financialameripriseadvisors.com
  4. 4The Fed - March 18, 2026: FOMC Projections materials, accessible versionfederalreserve.gov
  5. 5Speech by Governor Waller on the economic outlook - Federal Reserve Boardfederalreserve.gov
  6. 6Speech by Vice Chair Jefferson on the economic outlook and the labor market - Federal Reserve Boardfederalreserve.gov
  7. 7The risk of higher US inflation in 2026 | PIIEpiie.com
  8. 8April Inflation US - Monthly Trading Odds & Predictions 2026 | Polymarketpolymarket.com

13. Historical Resolutions

Historical Resolutions: 1 markets in this series

Outcomes: 1 resolved YES, 0 resolved NO

Recent resolutions:

  • KXLCPIMAXYOY-27-P3: YES (Apr 17, 2026)