{"id":980524,"date":"2026-07-09T17:51:51","date_gmt":"2026-07-09T21:51:51","guid":{"rendered":"https:\/\/www.marketnewsdesk.com\/index.php\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\/"},"modified":"2026-07-09T17:51:51","modified_gmt":"2026-07-09T21:51:51","slug":"solaris-energy-infrastructure-set-to-join-sp-smallcap-600","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\/","title":{"rendered":"Solaris Energy Infrastructure Set to Join S&P SmallCap 600"},"content":{"rendered":"
\n

PR Newswire<\/p>\n<\/p><\/div>\n

\n

\n NEW YORK<\/span>, July 9, 2026<\/span> \/PRNewswire\/ — Solaris Energy Infrastructure Inc. (NYSE: SEI) will replace Catalyst Pharmaceuticals Inc. (NASD: CPRX) in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, July 15. Angelini Pharma S.p.A. is acquiring Catalyst Pharmaceuticals in a deal expected to close soon, pending final closing conditions.<\/p>\n

Following is a summary of the changes that will take place prior to the open of trading on the effective date:<\/p>\n

\n\n\n\n\n
\n

\n
\n Effective Date<\/b>
\n <\/span>\n <\/p>\n<\/td>\n

\n

\n
\n Index Name\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b>
\n <\/span>\n <\/p>\n<\/td>\n

\n

\n
\n Action<\/b>
\n <\/span>\n <\/p>\n<\/td>\n

\n

\n
\n Company Name<\/b>
\n <\/span>\n <\/p>\n<\/td>\n

\n

\n
\n Ticker<\/b>
\n <\/span>\n <\/p>\n<\/td>\n

\n

\n
\n GICS<\/b>
\n \u00a0Sector<\/b>
\n <\/span>\n <\/p>\n<\/td>\n<\/tr>\n

\n

\n
\n July 15, 2026<\/b>
\n <\/span>\n <\/p>\n<\/td>\n

\n

\n S&P SmallCap 600<\/span>\n <\/p>\n<\/td>\n

\n

\n Addition<\/span>\n <\/p>\n<\/td>\n

\n

\n Solaris Energy Infrastructure<\/span>\n <\/p>\n<\/td>\n

\n

\n SEI<\/span>\n <\/p>\n<\/td>\n

\n

\n Energy<\/span>\n <\/p>\n<\/td>\n<\/tr>\n

\n

\n
\n July 15, 2026<\/b>
\n <\/span>\n <\/p>\n<\/td>\n

\n

\n S&P SmallCap 600<\/span>\n <\/p>\n<\/td>\n

\n

\n Deletion<\/span>\n <\/p>\n<\/td>\n

\n

\n Catalyst Pharmaceuticals<\/span>\n <\/p>\n<\/td>\n

\n

\n CPRX<\/span>\n <\/p>\n<\/td>\n

\n

\n Health Care<\/span>\n <\/p>\n<\/td>\n<\/tr>\n<\/table><\/div>\n

ABOUT S&P DOW JONES INDICES<\/p>\n

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\u00ae and the Dow Jones Industrial Average\u00ae. 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.<\/p>\n

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\/<\/a>.<\/p>\n

\n FOR MORE INFORMATION:<\/b>\n <\/p>\n

\n S&P Dow Jones Indices
<\/b>
\n index_services@spglobal.com<\/a>\n <\/p>\n

\n Media Inquiries
<\/b>
\n spdji.comms@spglobal.com<\/a>\n <\/p>\n

\n \"Cision\" View original content:https:\/\/www.prnewswire.com\/news-releases\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600-302822362.html<\/a><\/p>\n

SOURCE S&P Dow Jones Indices<\/p>\n<\/p><\/div>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

PR Newswire NEW YORK, July 9, 2026 \/PRNewswire\/ — Solaris Energy Infrastructure Inc. (NYSE: SEI) will replace Catalyst Pharmaceuticals Inc. (NASD: CPRX) in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, July 15. Angelini Pharma S.p.A. is acquiring Catalyst Pharmaceuticals 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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Action Company Name Ticker GICS \u00a0Sector July 15, 2026 S&P SmallCap 600 Addition Solaris Energy Infrastructure SEI Energy July 15, 2026 S&P SmallCap 600 Deletion Catalyst Pharmaceuticals CPRX Health Care ABOUT S&P DOW JONES INDICES S&P Dow Jones Indices … <\/p>\n

Continue reading “Solaris Energy Infrastructure Set to Join S&P SmallCap 600”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-980524","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"\nSolaris Energy Infrastructure Set to Join S&P SmallCap 600 - Market Newsdesk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.marketnewsdesk.com\/index.php\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Solaris Energy Infrastructure Set to Join S&P SmallCap 600 - Market Newsdesk\" \/>\n<meta property=\"og:description\" content=\"PR Newswire NEW YORK, July 9, 2026 \/PRNewswire\/ — Solaris Energy Infrastructure Inc. (NYSE: SEI) will replace Catalyst Pharmaceuticals Inc. (NASD: CPRX) in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, July 15. Angelini Pharma S.p.A. is acquiring Catalyst Pharmaceuticals 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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Action Company Name Ticker GICS \u00a0Sector July 15, 2026 S&P SmallCap 600 Addition Solaris Energy Infrastructure SEI Energy July 15, 2026 S&P SmallCap 600 Deletion Catalyst Pharmaceuticals CPRX Health Care ABOUT S&P DOW JONES INDICES S&P Dow Jones Indices … Continue reading "Solaris Energy Infrastructure Set to Join S&P SmallCap 600"\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.marketnewsdesk.com\/index.php\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\/\" \/>\n<meta property=\"og:site_name\" content=\"Market Newsdesk\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-09T21:51:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/edge.prnewswire.com\/c\/img\/favicon.png?sn=PH01820&sd=2026-07-09\" \/>\n<meta name=\"author\" content=\"Newsdesk\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Newsdesk\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\\\/\"},\"author\":{\"name\":\"Newsdesk\",\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/#\\\/schema\\\/person\\\/482f27a394d4fda80ecb5499e519d979\"},\"headline\":\"Solaris Energy Infrastructure Set to Join S&P SmallCap 600\",\"datePublished\":\"2026-07-09T21:51:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\\\/\"},\"wordCount\":296,\"image\":{\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/edge.prnewswire.com\\\/c\\\/img\\\/favicon.png?sn=PH01820&sd=2026-07-09\",\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\\\/\",\"url\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/solaris-energy-infrastructure-set-to-join-sp-smallcap-600\\\/\",\"name\":\"Solaris Energy Infrastructure Set to Join S&P SmallCap 600 - 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