The Ensign Group Set to Join S&P MidCap 400; Curbline Properties & TransMedics Group to Join S&P SmallCap 600

Rhea-AI Summary

S&P Dow Jones Indices will reshuffle small‑ and mid‑cap indexes effective prior to trading on October 1 and October 2, 2024. The Ensign Group (ENSG) moves into the S&P MidCap 400; Curbline Properties (CURB) and TransMedics (TMDX) join the S&P SmallCap 600.

Chesapeake Energy (CHK) is acquiring Southwestern Energy (SWN) in a deal expected to complete October 1, prompting SWN's removal and Cross Country Healthcare (CCRN) to be deleted October 2.

AI-generated analysis. Not financial advice.

Positive

• ENSG added to S&P MidCap 400 effective October 1, 2024
• CURB and TMDX added to S&P SmallCap 600 effective October 1, 2024
• CHK acquisition of SWN expected to close October 1, 2024

Negative

• SWN removed from S&P MidCap 400 effective October 1, 2024
• ENSG removed from S&P SmallCap 600 effective October 1, 2024
• CCRN removed from S&P SmallCap 600 effective October 2, 2024

Market Reality Check

Price: $169.41 Vol: Volume 221,586 is at 0.61...

low vol

$169.41 Last Close

Volume Volume 221,586 is at 0.61x the 20-day average of 363,400, indicating subdued trading ahead of the index change. low

Technical Shares at $200.30 are trading above the 200-day MA of $178.48 and about 8.12% below the $218.00 52-week high.

Peers on Argus

ENSG gained 0.64% with modest volume while peers DVA, CHE, OPCH, UHS and EHC all...

ENSG gained 0.64% with modest volume while peers DVA, CHE, OPCH, UHS and EHC all showed small positive moves (from 0.10% to 2.06%). Scanner data did not flag a coordinated sector momentum move.

Historical Context

5 past events · Latest: Mar 20 (Positive)

Pattern 5 events

Date	Event	Sentiment	Move	Catalyst
Mar 20	Dividend declaration	Positive	-1.2%	Announced quarterly cash dividend of $0.065 per share to shareholders.
Mar 12	Conference appearance	Neutral	+0.7%	Planned presentation at Oppenheimer healthcare MedTech & services conference.
Feb 04	Earnings and guidance	Positive	+13.8%	Reported strong 2025 EPS and revenue with higher 2026 earnings guidance.
Feb 03	Acquisition expansion	Positive	+0.6%	Expanded operations and real estate footprint in Arizona, Texas, and Wisconsin.
Feb 03	Facility acquisitions	Positive	+0.6%	Acquired multiple skilled nursing properties, increasing operations and assets.

Pattern Detected

Recent ENSG news has generally seen price gains on operational and earnings updates, with one divergence where a dividend announcement coincided with a modest decline.

Recent Company History

Over the last several months, ENSG news has focused on growth, earnings strength, and shareholder returns. A Feb 4, 2026 earnings release highlighted $5.06B in 2025 revenue, strong EPS, and raised 2026 guidance, followed by a 13.85% gain. Multiple February 2026 acquisition announcements modestly lifted the stock, reinforcing an expansion strategy. A March 2026 conference appearance and a March 2026 dividend declaration produced relatively small price moves. Against this backdrop, the S&P index reclassification adds an index-based milestone to an already growth-oriented narrative.

Market Pulse Summary

This announcement details ENSG’s removal from the S&P SmallCap 600 and addition to the S&P MidCap 40...

Analysis

This announcement details ENSG’s removal from the S&P SmallCap 600 and addition to the S&P MidCap 400 effective October 1, 2024, reflecting its fit in a larger-cap index. In recent history, ENSG highlighted strong 2025 revenue of $5.06B, raised guidance, ongoing acquisitions, and continued dividends. Together, these events frame a company growing in scale and visibility. Investors may watch how index changes interact with fundamentals, liquidity, and prior news-driven trading patterns over time.

Key Terms

s&p midcap 400, s&p smallcap 600, gics sector, spin off

4 terms

s&p midcap 400 financial

"October 1, 2024 | S&P MidCap 400 | Addition | The Ensign Group"

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 smallcap 600 financial

"October 1, 2024 | S&P SmallCap 600 | Addition | Curbline Properties"

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.

gics sector technical

"Effective Date | Index Name | Action | Company Name | Ticker | GICS Sector"

GICS sector is one of the major industry groupings from the Global Industry Classification Standard, a system that sorts companies into consistent categories (like Technology or Health Care) based on the primary business they do. Investors use these sectors like folders in a filing cabinet to compare companies, build diversified portfolios, and track how whole parts of the market are performing rather than focusing on single stocks.

spin off financial

"SITE Centers Corp. (NYSE: SITC) is spinning off Curbline Properties"

A spin-off is when a company separates one part of its operations into a new, independent company and distributes shares of that new business to existing shareholders. Think of it like a parent splitting a large household into two smaller homes so each can manage its own budget and goals. Investors watch spin-offs because they can reveal hidden value, change growth and risk profiles, and create separate investment choices that may trade at different prices than the original company.

AI-generated analysis. Not financial advice.

NEW YORK, Sept. 26, 2024 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P SmallCap 600 and S&P MidCap 400:

• S&P SmallCap 600 constituent The Ensign Group Inc. (NASD: ENSG) will replace Southwestern Energy Co. (NYSE: SWN) in the S&P MidCap 400 and TransMedics Group, Inc. (NASD: TMDX) will replace The Ensign Group in the S&P SmallCap 600 effective prior to the opening of trading on Tuesday, October 1.  S&P MidCap 400 constituent Chesapeake Energy Corp. (NASD: CHK) is acquiring Southwestern Energy in a deal expected to be completed October 1.
  
  
• Curbline Properties Corp. (NYSE: CURB) will be added to the S&P SmallCap 600 effective prior to the open of trading on Tuesday, October 1, replacing Cross Country Healthcare Inc. (NASD: CCRN), which will be removed from the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, October 2. S&P SmallCap 600 constituent SITE Centers Corp. (NYSE: SITC) is spinning off Curbline Properties in a transaction expected to be completed on October 1. Cross Country Healthcare is no longer representative of the small-cap market space.

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
October 1, 2024	S&P MidCap 400	Addition	The Ensign Group	ENSG	Health Care
October 1, 2024	S&P MidCap 400	Deletion	Southwestern Energy	SWN	Energy
October 1, 2024	S&P SmallCap 600	Addition	Curbline Properties	CURB	Real Estate
October 1, 2024	S&P SmallCap 600	Addition	TransMedics Group.	TMDX	Health Care
October 1, 2024	S&P SmallCap 600	Deletion	The Ensign Group	ENSG	Health Care
October 2, 2024	S&P SmallCap 600	Deletion	Cross Country Healthcare	CCRN	Health Care

For more information about S&P Dow Jones Indices, please visit www.spdji.com

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View original content:https://www.prnewswire.com/news-releases/the-ensign-group-set-to-join-sp-midcap-400-curbline-properties--transmedics-group-to-join-sp-smallcap-600-302260576.html

SOURCE S&P Dow Jones Indices

FAQ

What does ENGS (ENSG) joining the S&P MidCap 400 mean for investors?

ENSG's addition may increase index‑linked demand for its shares starting October 1, 2024. According to S&P Dow Jones Indices, ENSG will replace Southwestern Energy in the S&P MidCap 400, shifting index exposure between health care and energy sectors.

Why are Curbline Properties (CURB) and TransMedics (TMDX) added to the S&P SmallCap 600 on October 1, 2024?

CURB and TMDX meet S&P DJI criteria for small‑cap inclusion effective October 1, 2024. According to S&P Dow Jones Indices, Curbline is being spun off and TransMedics replaces ENSG in the SmallCap 600 as part of the scheduled reconstitution.

How will Chesapeake Energy's (CHK) acquisition of Southwestern Energy (SWN) affect index membership?

CHK's acquisition of SWN is expected to close October 1, 2024 and triggers SWN's removal from the MidCap 400. According to S&P Dow Jones Indices, the deal prompts the index reshuffle that moves ENSG into MidCap 400.

When will Cross Country Healthcare (CCRN) be removed from the S&P SmallCap 600?

CCRN will be deleted from the S&P SmallCap 600 effective prior to the open on October 2, 2024. According to S&P Dow Jones Indices, Cross Country is no longer representative of the small‑cap market space, prompting the removal.

When do the S&P index changes take effect for investors tracking ENSG, CURB, TMDX, SWN, and CCRN?

Most changes take effect prior to opening on October 1, 2024; CCRN's deletion is effective October 2, 2024. According to S&P Dow Jones Indices, additions and deletions are scheduled to align with the completion of related corporate transactions.