Midera Food Processing and Centrus Energy Set to Join S&P SmallCap 600

Midera Food Processing (NASD:MFP) and Centrus Energy (NYSE:LEU) are set to join the S&P SmallCap 600.

Rhea-AI Summary

Midera Food Processing (NASD:MFP) and Centrus Energy (NYSE:LEU) are set to join the S&P SmallCap 600. MFP will replace Redwood Trust on July 8, 2026, following its spin-off from Middleby. Centrus Energy will replace Whitestone REIT on July 14, 2026, linked to Whitestone’s acquisition by Ares Management.

Positive

• Centrus Energy (LEU) added to S&P SmallCap 600 on July 14, 2026
• Index change tied to Whitestone REIT acquisition by S&P 500 member Ares Management

Negative

• None.

Argus Jul 6 session

+7.46% close to close Open Argus

Details

Market reaction after S&P SmallCap 600 index inclusion: LEU +7.46% in the Jul 6 session

In the Jul 6 session, LEU gained 7.46%, reflecting a notable positive market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

The stock moved +7.5% in the session following this news. A sharp upside reaction would be consisten...

Analysis

The stock moved +7.5% in the session following this news. A sharp upside reaction would be consistent with the market’s enthusiasm for prior positive catalysts, such as the Q1 2026 earnings beat and guidance raise. However, elevated short positioning and an effective shelf registration could temper longer-term follow-through.

Key Figures

Index change effective date: July 8, 2026 Index change effective date: July 14, 2026 First index creation year: 1884

Index change effective date

July 8, 2026

Midera Food Processing added; Redwood Trust removed from S&P SmallCap 600

Index change effective date

July 14, 2026

Centrus Energy added; Whitestone REIT removed from S&P SmallCap 600

First index creation year

1884

Year Charles Dow invented the first index referenced by S&P DJI

Historical Context

5 past events · Latest: Jun 18

5 events

1. Jun 18

   Tax rights extension

   24h Move

   -4.0%

   Extended Section 382 Rights Agreement to preserve NOL-related tax assets.

2. Jun 18

   Fuel supply LOI

   24h Move

   +8.3%

   Non-binding LOI to supply HALEU for up to five Oklo Aurora units.

3. May 05

   Q1 2026 earnings

   24h Move

   +12.3%

   Reported Q1 2026 profits and raised full-year revenue guidance.

4. Apr 23

   Earnings call notice

   24h Move

   -6.3%

   Scheduled webcast and timing for release of Q1 2026 earnings.

5. Apr 20

   Plant expansion contractor

   24h Move

   -2.0%

   Named construction contractor for multi‑billion‑dollar enrichment expansion.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

s&p smallcap 600, s&p midcap 400, s&p 500, gics

4 terms

s&p smallcap 600 financial

"will make the following changes to the S&P SmallCap 600"

A stock market index made up of 600 small-cap U.S. companies chosen to represent the performance of smaller publicly traded firms. It matters to investors because it acts like a temperature gauge for the small-company segment of the market, serving as a benchmark for fund managers, a basis for index funds and ETFs, and a way to compare returns and risk when building a diversified portfolio.

s&p midcap 400 financial

"S&P MidCap 400 constituent The Middleby Corp. (NASD: MIDD)"

The S&P MidCap 400 is a group of 400 companies that are smaller than the big, well-known corporations but larger than tiny startups. It helps investors see how medium-sized companies are performing in the stock market, acting like a barometer for this middle-sized group of businesses.

s&p 500 financial

"S&P 500 constituent Ares Management Corp. (NYSE: ARES)"

The S&P 500 is a broad stock market index that tracks the performance of 500 large U.S. companies, weighted so bigger firms have a larger impact. Investors use it like a thermometer or benchmark to judge how the overall U.S. stock market or a portfolio is doing; movements in the index influence investor sentiment, fund performance, and many passive investment products that aim to match its returns.

View in glossary

gics financial

"Ticker | GICS Sector"

GICS is the Global Industry Classification Standard, a widely used system that groups publicly traded companies into sectors and industries so investors can compare, track and build portfolios by business type. Think of it like supermarket aisles that organize products—GICS organizes companies, making it easier to see trends, measure performance, and manage diversification across areas such as technology, healthcare, or consumer goods.

View in glossary

AI-generated analysis. How Rhea-AI works. Not financial advice.

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NEW YORK, July 2, 2026 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P SmallCap 600:

• Midera Food Processing Inc. (NASD: MFP) will replace Redwood Trust Inc. (NYSE: RWT)  effective prior to the opening of trading on Wednesday, July 8. S&P MidCap 400 constituent The Middleby Corp. (NASD: MIDD) is spinning off Midera Food Processing in a transaction that is expected to close July 7. Redwood Trust is no longer representative of the small cap market space.
• Centrus Energy Corp. (NYSE: LEU) will replace Whitestone REIT (NYSE: WSR) effective prior to the opening of trading on Tuesday, July 14. S&P 500 constituent Ares Management Corp. (NYSE: ARES) is acquiring Whitestone REIT in a deal expected to close on or about that date, pending final closing conditions.

Following is a summary of the changes that will take place prior to the open of trading on the effective date:

Effective Date	Index Name		Action	Company Name	Ticker	GICS Sector
July 8, 2026	S&P SmallCap 600	Addition		Midera Food Processing	MFP	Industrials
July 8, 2026	S&P SmallCap 600	Deletion		Redwood Trust Inc	RWT	Financials
July 14, 2026	S&P SmallCap 600	Addition		Centrus Energy	LEU	Energy
July 14, 2026	S&P SmallCap 600	Deletion		Whitestone REIT	WSR	Real Estate

ABOUT S&P DOW JONES INDICES

S&P Dow Jones Indices is the largest global resource for essential index-based concepts, data and research, and home to iconic financial market indicators, such as the S&P 500® and the Dow Jones Industrial Average®. More assets are invested in products based on our indices than products based on indices from any other provider in the world. Since Charles Dow invented the first index in 1884, S&P DJI has been innovating and developing indices across the spectrum of asset classes helping to define the way investors measure and trade the markets.

S&P Dow Jones Indices is a division of S&P Global (NYSE: SPGI), which provides essential intelligence for individuals, companies, and governments to make decisions with confidence. For more information, visit www.spglobal.com/spdji/en/.

FOR MORE INFORMATION:

S&P Dow Jones Indices
index_services@spglobal.com 

Media Inquiries
spdji.comms@spglobal.com

View original content:https://www.prnewswire.com/news-releases/midera-food-processing-and-centrus-energy-set-to-join-sp-smallcap-600-302817273.html

SOURCE S&P Dow Jones Indices

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

When will Centrus Energy (NYSE: LEU) join the S&P SmallCap 600 index?

Centrus Energy will join the S&P SmallCap 600 on July 14, 2026. According to S&P Dow Jones Indices, Centrus Energy will replace Whitestone REIT before the market opens on that date, pending the Whitestone acquisition by Ares Management.

Why is Centrus Energy (LEU) being added to the S&P SmallCap 600?

Centrus Energy is being added because it will replace Whitestone REIT in the S&P SmallCap 600. According to S&P Dow Jones Indices, Whitestone is being acquired by Ares Management, prompting the index substitution effective prior to trading on July 14, 2026.

What change is occurring to Whitestone REIT (NYSE: WSR) in the S&P SmallCap 600?

Whitestone REIT will be removed from the S&P SmallCap 600 on July 14, 2026. According to S&P Dow Jones Indices, the deletion coincides with Whitestone’s planned acquisition by Ares Management, with Centrus Energy designated as its index replacement.

When will Midera Food Processing (MFP) be added to the S&P SmallCap 600 index?

Midera Food Processing will be added to the S&P SmallCap 600 on July 8, 2026. According to S&P Dow Jones Indices, the addition follows its spin-off from The Middleby Corp and will replace Redwood Trust in the index.

What corporate action leads to Midera Food Processing joining the S&P SmallCap 600?

Midera Food Processing joins the index following a spin-off from The Middleby Corp expected to close July 7, 2026. According to S&P Dow Jones Indices, Midera will then replace Redwood Trust in the S&P SmallCap 600 effective before trading on July 8.

Which companies are being deleted from the S&P SmallCap 600 in July 2026?

Redwood Trust and Whitestone REIT will be deleted from the S&P SmallCap 600 in July 2026. According to S&P Dow Jones Indices, Redwood exits on July 8, while Whitestone is removed on July 14 in connection with its planned acquisition.