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Market Insights

Market Pulse

Leveraging expertise from the MFS Market Insights team to provide timely perspectives on economic and market dynamics that are top of mind for clients.

Key Themes

POLITICAL UNCERTAINTY IS RARELY A LONG-TERM MARKET DRIVER

S&P 500 hasn’t had post-midterm losses since 1938

AI CAPEX IS RESHAPING MARKETS

AI capex is supporting economic growth and earnings

DIVERSIFICATION AS A DEFENSE — AND AN OPPORTUNITY 

Non-US earnings revisions catching up with US

DIVERSIFICATION AS A DEFENSE — AND AN OPPORTUNITY 

US yields rank in the 98th percentile relative to history1

Economy & Markets 

Bar chart showing that S&P 500 returns have historically been highest under a divided Congress, regardless of presidential party.
Midterm Election Volatility Historically Has Been Temporary

MFS PERSPECTIVE

  • Midterm election years can be volatile, but markets historically have rallied as policy uncertainty fades after the vote.

  • Since 1938, the S&P 500 has averaged a 19% return in the year following midterm elections.

  • Staying invested has historically rewarded investors more than reacting to short term election-driven uncertainty.
ar chart comparing free cash flow growth across market caps. Mid-caps show the strongest growth in 2026 year-to-date.
AI Capex to Support Broader Earnings Growth

MFS PERSPECTIVE

  • Capital expenditures are expected to increase for the next few years, a tailwind for economic growth.

  • Market leadership could broaden as rising capex supports continued earnings growth for beneficiaries.

  • Elevated capex may weigh on near-term cash flows and returns but may bolster stronger earnings growth over time.
Bar chart showing European earnings growth is expected to improve and narrow the gap with the S&P 500.
Earnings Momentum Is Broadening Beyond US Megacaps 

MFS PERSPECTIVE

  • Headline EM EPS estimates are outpacing the US, driven by select AI stocks, but earnings breadth remains muted.

  • Japan leads developed ex US earnings revisions, supported by AI and semiconductor supply chains.

  • European earnings revisions turn positive as fiscal, defense, and industrial spending boost profit growth.

 

Credit spreads are tighter today than pre-conflict
Current Yields Suggest Strong Income and Fixed Income Return Potential 

MFS PERSPECTIVE

  • US 10-year Treasury yields recently climbed above 5%. 

  • At these levels, subsequent long-term bond returns have historically outpaced equity returns. 

  • With equity returns subject to greater volatility, and with today’s elevated yields, fixed income may offer compelling income, return potential, and portfolio stability. 

 

Equity

Assets Class Views

Spotlight


US

Fundamentals →

Earnings Revisions ↑

Macro →

 

 

 

 

Positioning chart showing U.S. equities are viewed most favorably relative to emerging markets and non-U.S. developed equities.
 


US

US large-cap fundamentals remain constructive, supported by resilient earnings growth and broader sector participation beyond megacap tech.

AI investment continues to drive markets, with investors increasingly focused on productivity gains and long-term earnings potential.

Consumer demand is uneven across income groups, though spending remains supported by a resilient labor market and steady economic growth, despite pressure from higher rates, inflation, and affordability constraints.

 

 

 

 

Emerging Markets

Emerging markets are benefiting from resilient growth, improving liquidity conditions, and rising investment tied to AI infrastructure, datacenters, and advanced manufacturing.

Elevated rates and China-related weakness remain key headwinds, while narrow, AI-led earnings growth reinforces the need for country and sector selectivity.

 

 

 

 

Non-US Developed

These markets offer distinct sources of return beyond the US AI trade.

Japan’s corporate reforms, improving earnings, and capital discipline remain key tailwinds, while Europe is supported by robust profits, stabilizing manufacturing, and wider sector participation.

Earnings remain resilient, though growth continues to trail the US.

 

US Equity

Assets Class Views

Spotlight


Growth

Fundamentals ↑

Earnings Revisions ↑

Macro →

 

 

 

 

Positioning chart showing growth and large-cap stocks are favored over small/mid-cap and value stocks.
 

 

Growth

AI spending remains the primary driver of US growth equities, with companies positioned as spending beneficiaries being rewarded.

However, recent volatility highlights the risks associated with narrow market leadership.

Rising capital intensity and accelerating AI adoption increase the importance of security selection as markets distinguish between which companies are earning real returns on their AI-related investments.

 

 

 

Large Cap

AI investment and strong earnings results have supported returns, but market leadership has been narrow as semiconductor and other AI related names have benefited.

Improving market participation will depend on the continued broadening of earnings growth beyond semiconductors and hyperscalers.

 

 

 

 

Value

Value continues to offer diversification from narrowly driven markets tied to the AI trade.

Resilient US economic growth, persistently high interest rates, tight energy supply, and continued demand for tangible assets create a favorable environment for value-oriented businesses with strong cash flow generation and meaningful pricing power.

 

 

 

Small/Mid-Cap

A resilient US economy and accelerating AI investment continue to fuel broadening earnings growth for smid-caps.

However, tighter financial conditions may pose a headwind to companies with lower quality earnings and balance sheets.

We favor mid-caps over small caps given their stronger profitability and more flexible balance sheets.

 

 

Fixed Income

Assets Class Views

Spotlight


US Investment Grade

Fundamentals ↑

Technicals →

Valuations ↑

 

 

 

 

Positioning chart showing U.S. investment-grade bonds are most favored, while emerging market debt is least favored.
 

 

US Investment Grade 

Fundamentals remain robust amid elevated margins and healthy balance sheets. Additionally, strong earnings support credit quality, bolstering US IG relative to lower-quality credit.

Despite recent modest widening, spreads remain tight, limiting further compression. While debt financed AI capex has increased supply, spreads have thus far taken the increase in stride.

All-in yields remain historically attractive. Carry is likely to be the main return driver, while rates remain elevated.

 

 

US Securitized

Mortgage rates near multi-year highs are constraining new supply.

Yields have risen sharply since January, moving valuations from expensive to more reasonable.

Demand remains challenged, however, as elevated rate volatility continues to weigh on the market.

 

 

 

US Municipals

Municipal valuations have become more attractive with tax exempt yields back above 3.5%.

State finances remain healthy, but dispersion between sectors is rising.

Fund outflows recently hit a four-year high, even as the new bond supply hits record levels.

 

 

US HY

High-yield spreads are at their widest in over a year amid higher rates, AI concerns, and geopolitical tensions.

Persistent outflows have hit the riskiest bonds hardest, reinforcing our preference for higher quality issues to help manage downside risk.

 

 

 

US Treasuries

Geopolitical, fiscal, and monetary concerns have pushed market rates higher. 

Even with yields now more compelling, we remain neutral given the policy risks and macro uncertainty.

Technicals are adequate as foreign demand remains healthy.

 

 

EM Debt

Resilient fundamentals and attractive yields remain supportive.

However, spreads are quite tight and may not fully compensate investors for higher uncertainty, leading us to stay selective and favor liquid sovereigns over corporates.

Industry Flows

Money in motion by Morningstar category

Bar charts showing the largest fund inflows went to Large Blend and bond categories, while Large Growth and Mid-Cap Growth saw notable outflows.

 

 

1Source: Bloomberg. Percentile rank calculated using daily data from 20 October 2006 to 19 October 2026. Yield = yield to worst. US Agg = Bloomberg US Aggregate.  

The views expressed herein are those of the MFS Strategy and Insights Group within the MFS distribution unit and may differ from those of MFS portfolio managers and research analysts. These views are subject to change at any time and should not be construed as MFS’ investment advice, as portfolio positioning, as securities recommendations, or as an indication of trading intent on behalf of MFS. No forecasts can be guaranteed. The Market Pulse leverages the firm’s intellectual capital to provide perspective on broad market dynamics that are top of mind for asset allocators. We celebrate the rich diversity of opinion within our investment team and are proud to have talented investors who may implement portfolio positions and express different or nuanced views to those contained here, which are aligned to their specific investment philosophy, risk budget and entrusted duty to allocate our client’s capital responsibly.

Approach and methodology: The Market Pulse provides an outlook over a 12-month investment horizon for major asset classes as well as considerations of the prevailing market conditions. Views are driven by both quantitative and qualitative inputs, including, but not limited to, macroeconomic data, valuations, fundamentals and technical variables. The views expressed herein are those of the MFS Strategy and Insights Group within the MFS distribution unit and may differ from those of MFS portfolio managers and research analysts. These views are subject to change at any time and should not be construed as MFS’ investment advice, as securities recommendations, as portfolio positioning, or as an indication of trading intent on behalf of MFS. No forecasts can be guaranteed.

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