S&P 400 Companies List and Market Updates

S&P 400 Companies List and Market Updates

Index Summary

The S&P 400, also known as the S&P MidCap 400, is a stock market index maintained by S&P Dow Jones Indices. It comprises the common stocks of 400 mid-cap companies, mostly American. The index sometimes contains more than 400 stocks when it includes two or more share classes of stock from one of its component companies. RP, a people-centric and customer-focused SDVOSB, offers mission-focused management consulting, information technology, and finance and transactions support services across the federal market. RP's solutions don't stop at strategy, and they excel in resolving the Government's toughest challenges, from strategic planning to meticulous execution. The company has a proven history supporting the nation's most critical economic emergencies and has a dynamic, remote team of over 225 experienced and passionate professionals representing over 35 states. According to Barchart, stocks in the S&P 400 can be configured to show real-time Cboe data. The S&P 400 is often used as a benchmark for mid-cap companies, and its performance can be tracked through various market data providers, including Zacks and Morningstar. The index has seen fluctuations in recent times, with some companies experiencing significant price changes. For instance, Dell's stock surged as much as 9% due to a $6.25 billion contribution to Trump Accounts made by Michael Dell, Dell's founder. The AI trade has split between chipmakers and capex spenders, with further divergence expected to define the market through the rest of this year. The S&P 400 is a significant indicator of the overall health of the US stock market and is closely watched by investors and analysts. With the current market trends and fluctuations, it is essential to stay informed and up-to-date on the latest developments in the S&P 400.

Published on July 06, 2026. Fact-checked and verified against referenced sources.

Associated Entities

RP
Neutral

People-centric and customer-focused SDVOSB offering mission-focused management consulting, information technology, and finance and transactions support services across the federal market

Event Chronology

Recent

RP offers mission-focused management consulting, information technology, and finance and transactions support services across the federal market

RP, a people-centric and customer-focused SDVOSB, offers mission-focused management consulting, information technology, and finance and transactions support services across the federal market.

Recent

Dell's stock surged as much as 9% due to a $6.25 billion contribution to Trump Accounts made by Michael Dell, Dell's founder

Dell's stock surged as much as 9% due to a $6.25 billion contribution to Trump Accounts made by Michael Dell, Dell's founder.

Recent

The AI trade has split between chipmakers and capex spenders

The AI trade has split between chipmakers and capex spenders, with further divergence expected to define the market through the rest of this year.

Community Sentiment Poll

What is the primary reason for the fluctuations in the S&P 400?

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Broader Context

The S&P 400 is a significant indicator of the overall health of the US stock market and is closely watched by investors and analysts. The index has seen fluctuations in recent times, with some companies experiencing significant price changes. The AI trade has split between chipmakers and capex spenders, with further divergence expected to define the market through the rest of this year. This trend is a reflection of the broader market dynamics and the impact of technological advancements on the economy. According to Goldman Sachs, hyperscalers' price-to-earnings ratios are at similar levels to those seen in March 2020. The S&P 400 is a benchmark for mid-cap companies, and its performance can be tracked through various market data providers, including Zacks and Morningstar. The index is a critical component of the US stock market, and its fluctuations have a significant impact on the overall market trends.

Frequently Asked Questions

What is the S&P 400?

The S&P 400, also known as the S&P MidCap 400, is a stock market index maintained by S&P Dow Jones Indices. It comprises the common stocks of 400 mid-cap companies, mostly American. The index sometimes contains more than 400 stocks when it includes two or more share classes of stock from one of its component companies.

What services does RP offer?

RP offers mission-focused management consulting, information technology, and finance and transactions support services across the federal market.

What is the current trend in the AI trade?

The AI trade has split between chipmakers and capex spenders, with further divergence expected to define the market through the rest of this year.

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Sources & References

This briefing was compiled using data scraped from the following reputable news outlets and search indices: