LifeStance Health Group Set to Join S&P SmallCap 600

Rhea-AI Summary

LifeStance Health Group (NASDAQ: LFST) will be added to the S&P SmallCap 600 prior to trading on May 1, 2026. Golden Entertainment (NASDAQ: GDEN) will be deleted from the index on the same date, following a pending acquisition by VICI Properties and Blake Sartini.

The table of changes lists LFST as an addition to the Health Care sector and GDEN as a deletion from Consumer Discretionary.

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

Positive

• LFST will join the S&P SmallCap 600 effective May 1, 2026
• Index addition places LFST in the S&P SmallCap 600 Health Care sector

Negative

• GDEN will be removed from the S&P SmallCap 600 effective May 1, 2026
• GDEN deletion follows a pending acquisition by VICI Properties and Blake Sartini

News Market Reaction – LFST

+5.50%

12 alerts

+5.50% News Effect

+6.7% Peak in 16 hr 51 min

+$151M Valuation Impact

$2.90B Market Cap

1.4x Rel. Volume

On the day this news was published, LFST gained 5.50%, reflecting a notable positive market reaction. Argus tracked a peak move of +6.7% during that session. Our momentum scanner triggered 12 alerts that day, indicating notable trading interest and price volatility. This price movement added approximately $151M to the company's valuation, bringing the market cap to $2.90B at that time.

Data tracked by StockTitan Argus on the day of publication.

What This Means

The stock moved +5.5% in the session following this news. A strong positive reaction aligns with LFS...

Analysis

The stock moved +5.5% in the session following this news. A strong positive reaction aligns with LFST’s inclusion in the S&P SmallCap 600, which often draws incremental index and benchmark-linked demand. Historically, LFST has reacted positively to earnings and scheduling news, with several prior moves above 2–3%. However, past events also show sensitivity to capital-markets actions and insider activity, so investors monitored whether enthusiasm could fade once index-driven buying normalized and recent insider selling and prior offerings were fully digested.

Key Figures

Index effective date: May 1, 2026 Index added: S&P SmallCap 600 Index removed: Golden Entertainment (GDEN)

3 metrics

Index effective date May 1, 2026 LFST addition to S&P SmallCap 600 effective before market open

Index added S&P SmallCap 600 LFST set to join the S&P SmallCap 600 index

Index removed Golden Entertainment (GDEN) GDEN deleted from S&P SmallCap 600 upon acquisition closing

Historical Context

5 past events · Latest: Apr 16 (Neutral)

Pattern 5 events

Date	Event	Sentiment	24h Move	Catalyst
Apr 16	Earnings call notice	Neutral	+3.3%	Scheduled Q1 2026 earnings release and conference call details.
Apr 09	Clinical outcomes data	Positive	-0.8%	Published outcomes showing broad anxiety and depression improvement at scale.
Feb 25	Secondary offering	Negative	-6.1%	Selling stockholders launched 25M-share secondary under an existing shelf.
Feb 25	Earnings results	Positive	+3.8%	Reported Q4 and FY 2025 growth with 2026 revenue and EBITDA guidance.
Feb 09	Earnings call notice	Neutral	+2.1%	Announced timing and access details for Q4 and FY 2025 call.

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

Pattern Detected

Earnings updates and conference-call notices have often seen positive price reactions, while an offering and at least one positive clinical update drew weaker or negative responses.

Recent Company History

This announcement adds an index-inclusion milestone to a recent stream of operational and capital-markets updates. On Feb 25, 2026, LFST reported strong Q4 and FY 2025 results and 2026 guidance, followed the same day by a secondary offering from selling stockholders. Subsequent filings in April detailed insider sales and proxy information highlighting $1.42B in 2025 revenue and $157.7M Adjusted EBITDA. The new S&P SmallCap 600 addition on May 1, 2026 sits against this backdrop of growth, insider activity, and prior capital-markets events.

Regulatory & Risk Context

Short Interest: 5.03%

Short Interest

5.03% of float

0% 15% 30%+

low as of 2026-05-29 Days to cover: 2.71

Key Terms

s&p smallcap 600, s&p 500, dow jones industrial average, gics sector

4 terms

s&p smallcap 600 financial

"LifeStance Health Group Inc. (NASD: LFST) will replace Golden Entertainment Inc ... in 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 500 financial

"S&P 500 constituent VICI Properties Inc. (NYSE: VICI) and Blake Sartini are acquiring"

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.

dow jones industrial average financial

"such as the S&P 500® and the Dow Jones Industrial Average®."

A stock market index that tracks the share prices of a small group of large, well-known companies to give a quick snapshot of how the broader market is doing. Think of it like a thermometer for the stock market: it uses a handful of heavyweight firms as representative samples to show whether investor sentiment is rising or falling, which helps investors gauge market trends and compare performance over time.

gics sector financial

"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.

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

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NEW YORK, April 27, 2026 /PRNewswire/ -- LifeStance Health Group Inc. (NASD: LFST) will replace Golden Entertainment Inc (NASD: GDEN) in the S&P SmallCap 600 effective prior to the opening of trading on Friday, May 1. S&P 500 constituent VICI Properties Inc. (NYSE: VICI) and Blake Sartini are acquiring Golden Entertainment in a deal expected to close soon, 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
May 1, 2026	S&P SmallCap 600	Addition		LifeStance Health Group	LFST	Health Care
May 1, 2026	S&P SmallCap 600	Deletion		Golden Entertainment	GDEN	Consumer Discretionary

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:

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View original content:https://www.prnewswire.com/news-releases/lifestance-health-group-set-to-join-sp-smallcap-600-302754864.html

SOURCE S&P Dow Jones Indices

FAQ

When will LifeStance Health Group (LFST) join the S&P SmallCap 600?

LFST will be added prior to the opening of trading on May 1, 2026. According to S&P Dow Jones Indices, the change becomes effective at the open and will list LFST in the Health Care GICS sector.

Why is Golden Entertainment (GDEN) being removed from the S&P SmallCap 600?

GDEN is being deleted because of a pending acquisition by VICI Properties and Blake Sartini. According to S&P Dow Jones Indices, the deletion is effective May 1, 2026, pending the transaction's final closing conditions.

How will the May 1, 2026 index change affect LFST's index membership?

LFST will gain inclusion in the S&P SmallCap 600 beginning May 1, 2026. According to S&P Dow Jones Indices, LFST is assigned to the Health Care GICS sector for index composition and weighting purposes.

Does the announcement confirm the Golden Entertainment acquisition is closed?

No, the acquisition is described as pending and expected to close soon, subject to final closing conditions. According to the notice, the deletion and acquisition remain contingent on those closing steps being completed.

Who issued the index change adding LFST and removing GDEN from the S&P SmallCap 600?

S&P Dow Jones Indices announced the index reconstitution effective May 1, 2026. According to S&P Dow Jones Indices, the table of changes lists LFST as an addition and GDEN as a deletion.