Ares Management Set to Join S&P 500; Sezzle and Vital Farms to Join S&P SmallCap 600

Rhea-AI Summary

S&P Dow Jones Indices announced index rebalances effective prior to the open on Dec 11 and Dec 15, 2025. Ares Management (ARES) will join the S&P 500 replacing Kellanova (K) on Dec 11. Vital Farms (VITL) and Sezzle (SEZL) will join the S&P SmallCap 600 on Dec 11 and Dec 15, replacing Heidrick & Struggles (HSII) and Vital Energy (VTLE) respectively. Several deletions follow announced acquisition transactions that are expected to close pending final conditions.

Positive

• Ares Management (ARES) added to S&P 500 on Dec 11, 2025
• Vital Farms (VITL) added to S&P SmallCap 600 on Dec 11, 2025
• Sezzle (SEZL) added to S&P SmallCap 600 on Dec 15, 2025

Negative

• Kellanova (K) removed from S&P 500 on Dec 11, 2025
• Heidrick & Struggles (HSII) removed from S&P SmallCap 600 on Dec 11, 2025
• Vital Energy (VTLE) removed from S&P SmallCap 600 on Dec 15, 2025

News Market Reaction – SEZL

+2.38%

11 alerts

+2.38% Session close to close

+5.6% Peak in 6 min

$2.31B Market Cap

0.8x Rel. Volume

In the Dec 9 session, SEZL gained 2.38%, reflecting a moderate positive market reaction. Argus tracked a peak move of +5.6% during that session. Our momentum scanner triggered 11 alerts that day, indicating notable trading interest and price volatility.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement adds Sezzle to the S&P SmallCap 600, alongside other index changes involving Ares ...

Analysis

This announcement adds Sezzle to the S&P SmallCap 600, alongside other index changes involving Ares Management and Vital Farms. Index inclusion can increase visibility with benchmarked and passive strategies that track S&P indices. Recent history shows Sezzle pairing brand partnerships, product launches, and strong FY2025 financial results, creating a backdrop of operational momentum. Investors may watch future earnings releases, product adoption metrics, and any subsequent index-related disclosures as key reference points.

Key Figures

Share price: $61.31 1-day price change: 2.69% Trading volume: 857,560 shares +2 more

5 metrics

Share price $61.31 Most recent close before article-based analysis

1-day price change 2.69% Change over prior 24 hours in market context

Trading volume 857,560 shares Today’s volume vs 20-day average of 691,157

52-week range $35.0227–$186.74 Low to high in the last 52 weeks

Market capitalization $2,018,129,006 Equity value from market context snapshot

Historical Context

5 past events · Latest: Apr 13 (Positive)

Pattern 5 events

Date	Event	Sentiment	24h Move	Catalyst
Apr 13	Community partnership	Positive	+2.7%	Timberwolves partnership event spotlighting community impact and youth empowerment.
Apr 06	Product engagement	Positive	+7.9%	MoneyIQ game and Super App adoption highlighted during Financial Literacy Month.
Feb 25	Earnings results	Positive	+3.3%	Record 4Q25 and FY2025 results with raised FY2026 guidance metrics.
Feb 18	Product launch	Positive	+3.3%	Launch of Sezzle Mobile unlimited 5G plans within the core app.
Feb 17	Marketing partnership	Positive	-1.0%	Love in Times Square wedding-focused partnership with David’s Bridal.

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

Pattern Detected

Recent Sezzle headlines, especially product launches and partnerships, have more often been followed by positive next-day price reactions.

Recent Company History

Over the last several months, Sezzle has emphasized partnerships, product expansion, and strong financial performance. Community and marketing efforts such as the Minnesota Timberwolves and David’s Bridal collaborations highlighted brand and financial wellness themes. Product-focused news, including the Super App engagement push and the Sezzle Mobile 5G launch, coincided with positive one-day moves. The 4Q25 and FY2025 earnings release showed strong growth and higher guidance, also followed by a gain. Against this backdrop, the index inclusion announcement fits into a pattern of constructive corporate milestones.

Key Terms

s&p 500, s&p smallcap 600, gics sector, indices

4 terms

s&p 500 financial

"Ares Management (NYSE: ARES) will replace Kellanova (NYSE: K) in the S&P 500..."

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

s&p smallcap 600 financial

"Vital Farms Inc. (NASD: VITL) will replace Heidrick & Struggles Intl 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.

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.

indices financial

"S&P Dow Jones Indices will make the following changes to the S&P 500..."

Indices are measurements that track the combined performance of a selected group of stocks or other financial assets, acting like a thermometer for a segment of the market. They matter to investors because they reveal broad market trends, provide a benchmark to judge how individual investments perform, and underpin index-based funds that let people buy wide exposure without choosing single stocks — like buying the score of a whole team instead of one player.

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

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NEW YORK, Dec. 8, 2025 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P 500 and S&P SmallCap 600: 

• Ares Management (NYSE: ARES) will replace Kellanova (NYSE: K) in the S&P 500 effective prior to the open of trading on Thursday, December 11. Mars Inc. is acquiring Kellanova in a deal expected to close soon, pending final closing conditions.
• Vital Farms Inc. (NASD: VITL) will replace Heidrick & Struggles Intl Inc. (NASD: HSII) in the S&P SmallCap 600 effective prior to the opening of trading on Thursday, December 11. Advent International and Corvex Private Equity are acquiring Heidrick & Struggles Intl in a deal expected to be completed soon, pending final closing conditions.
• Sezzle Inc. (NASD: SEZL) will replace Vital Energy Inc. (NYSE: VTLE) in the S&P SmallCap 600 effective prior to the opening of trading on Monday, December 15. S&P SmallCap 600 constituent Crescent Energy Co. (NYSE: CRGY) is acquiring Vital Energy 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
Dec 11, 2025	S&P 500	Addition		Ares Management	ARES	Financials
Dec 11, 2025	S&P 500	Deletion		Kellanova	K	Consumer Staples
Dec 11, 2025	S&P SmallCap 600	Addition		Vital Farms	VITL	Consumer Staples
Dec 11, 2025	S&P SmallCap 600	Deletion		Heidrick & Struggles Intl	HSII	Industrials
Dec 15, 2025	S&P SmallCap 600	Addition		Sezzle	SEZL	Financials
Dec 15, 2025	S&P SmallCap 600	Deletion		Vital Energy	VTLE	Energy

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/ares-management-set-to-join-sp-500-sezzle-and-vital-farms-to-join-sp-smallcap-600-302635867.html

SOURCE S&P Dow Jones Indices

FAQ

When does Ares Management (ARES) join the S&P 500 and which company does it replace?

Ares Management (ARES) joins the S&P 500 prior to the open on Dec 11, 2025, replacing Kellanova (K). According to S&P Dow Jones Indices, the change is effective before trading opens on Dec 11, 2025, tied to a corporate acquisition of Kellanova.

Why is Kellanova (K) being removed from the S&P 500 on Dec 11, 2025?

Kellanova (K) is removed because it is being acquired, prompting the index deletion on Dec 11, 2025. According to S&P Dow Jones Indices, the removal follows the announced Mars Inc. acquisition, which is expected to close pending final conditions.

Which companies join the S&P SmallCap 600 on Dec 11 and Dec 15, 2025?

Vital Farms (VITL) joins on Dec 11, 2025 and Sezzle (SEZL) joins on Dec 15, 2025. According to S&P Dow Jones Indices, those additions replace Heidrick & Struggles (HSII) and Vital Energy (VTLE), respectively.

Will the index changes affect trading dates for ARES, VITL, SEZL in December 2025?

The changes take effect prior to the open on Dec 11 and Dec 15, 2025, impacting index inclusion from those trading days. According to S&P Dow Jones Indices, additions and deletions are effective before market open on the stated dates.

Are the deletions of HSII and VTLE from the S&P SmallCap 600 related to acquisitions?

Yes; Heidrick & Struggles (HSII) and Vital Energy (VTLE) are deleted amid announced acquisition transactions expected to close soon. According to S&P Dow Jones Indices, both deletions are tied to pending deals subject to final closing conditions.