{"id":977441,"date":"2026-06-30T17:45:06","date_gmt":"2026-06-30T21:45:06","guid":{"rendered":"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/"},"modified":"2026-06-30T17:45:06","modified_gmt":"2026-06-30T21:45:06","slug":"allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/","title":{"rendered":"Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; Rubber to Join S&amp;P SmallCap 600"},"content":{"rendered":"<div class=\"xn-newslines\">\n<p class=\"xn-distributor\">PR Newswire<\/p>\n<\/p><\/div>\n<div class=\"xn-content\">\n<p>\n        <span class=\"legendSpanClass\">NEW YORK<\/span>, <span class=\"legendSpanClass\">June 30, 2026<\/span> \/PRNewswire\/ &#8212; Allison Transmission Holdings Inc. (NYSE:\u00a0ALSN) will replace Goodyear Tire &amp; Rubber Co. (NASD: GT) in the S&amp;P MidCap 400, and Goodyear Tire &amp; Rubber will replace Stellar Bancorp Inc. (NYSE: STEL) in the S&amp;P SmallCap 600 effective prior to the opening of trading on Monday, July 6. S&amp;P MidCap 400 constituent Prosperity Bancshares Inc. (NYSE: PB) is acquiring Stellar Bancorp in a deal expected to close July 1.<\/p>\n<p>Following is a summary of the changes that will take place prior to the open of trading on the effective date:<\/p>\n<div>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"1\" class=\"prnbcc\">\n<tr>\n<td class=\"prnpr2 prnpl2 prnvab prncbts prnrbrb1 prnbbbs prnbsbls\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>Effective Date<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen3\" colspan=\"2\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>Index Name<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen3\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>Action<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen3\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>Company Name<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen3\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>Ticker<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prnpr2 prnpl2 prnvab prncbts prnbrbrs prnbbbs prnsblb1\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>GICS<\/b><br \/>\n                  <b>\u00a0Sector<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"prngen5\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>July 6, 2026<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">S&amp;P MidCap 400<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"2\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Addition<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Allison Transmission<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">ALSN<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Industrials<\/span>\n              <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"prngen5\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>July 6, 2026<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">S&amp;P MidCap 400<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"2\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Deletion<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Goodyear Tire &amp; Rubber<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">GT<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Consumer Discretionary<\/span>\n              <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"prngen5\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>July 6, 2026<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">S&amp;P SmallCap 600<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"2\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Addition<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Goodyear Tire &amp; Rubber<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">GT<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Consumer Discretionary<\/span>\n              <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td class=\"prngen5\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\"><br \/>\n                  <b>July 6, 2026<\/b><br \/>\n                <\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">S&amp;P SmallCap 600<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"2\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Deletion<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Stellar Bancorp<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">STEL<\/span>\n              <\/p>\n<\/td>\n<td class=\"prngen6\" colspan=\"1\" rowspan=\"1\" nowrap=\"nowrap\">\n<p class=\"prnml4\">\n                <span class=\"prnews_span\">Financials<\/span>\n              <\/p>\n<\/td>\n<\/tr>\n<\/table><\/div>\n<p>ABOUT S&amp;P DOW JONES INDICES<\/p>\n<p>S&amp;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&amp;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&amp;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<p>S&amp;P Dow Jones Indices is a division of S&amp;P Global (NYSE: SPGI), which provides essential intelligence for individuals, companies, and governments to make decisions with confidence. For more information, visit <a href=\"https:\/\/edge.prnewswire.com\/c\/link\/?t=0&amp;l=en&amp;o=4723343-1&amp;h=1458140219&amp;u=https%3A%2F%2Fwww.spglobal.com%2Fspdji%2Fen%2F&amp;a=www.spglobal.com%2Fspdji%2Fen%2F\" target=\"_blank\" rel=\"nofollow\">www.spglobal.com\/spdji\/en\/<\/a>.\u00a0<\/p>\n<p>\n        <b>FOR MORE INFORMATION:<\/b>\n      <\/p>\n<p>\n        <b>S&amp;P Dow Jones Indices<br \/><\/b><br \/>\n        <a href=\"mailto:index_services@spglobal.com\" target=\"_blank\" rel=\"nofollow\">index_services@spglobal.com<\/a>\n      <\/p>\n<p>\n        <b>Media Inquiries<br \/><\/b><br \/>\n        <a href=\"mailto:spdji.comms@spglobal.com\" target=\"_blank\" rel=\"nofollow\">spdji.comms@spglobal.com<\/a>\n      <\/p>\n<p id=\"PURL\">\n        <img loading=\"lazy\" decoding=\"async\" title=\"Cision\" width=\"12\" height=\"12\" alt=\"Cision\" src=\"https:\/\/edge.prnewswire.com\/c\/img\/favicon.png?sn=NY95997&amp;sd=2026-06-30\" \/> View original content:<a id=\"PRNURL\" rel=\"nofollow\" href=\"https:\/\/www.prnewswire.com\/news-releases\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire--rubber-to-join-sp-smallcap-600-302815143.html\" target=\"_blank\">https:\/\/www.prnewswire.com\/news-releases\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire&#8211;rubber-to-join-sp-smallcap-600-302815143.html<\/a><\/p>\n<p>SOURCE S&amp;P Dow Jones Indices<\/p>\n<\/p><\/div>\n<p>    <img decoding=\"async\" alt=\"\" src=\"https:\/\/rt.prnewswire.com\/rt.gif?NewsItemId=NY95997&amp;Transmission_Id=202606301741PR_NEWS_USPR_____NY95997&amp;DateId=20260630\" style=\"border:0px;width:1px;height:1px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PR Newswire NEW YORK, June 30, 2026 \/PRNewswire\/ &#8212; Allison Transmission Holdings Inc. (NYSE:\u00a0ALSN) will replace Goodyear Tire &amp; Rubber Co. (NASD: GT) in the S&amp;P MidCap 400, and Goodyear Tire &amp; Rubber will replace Stellar Bancorp Inc. (NYSE: STEL) in the S&amp;P SmallCap 600 effective prior to the opening of trading on Monday, July 6. S&amp;P MidCap 400 constituent Prosperity Bancshares Inc. (NYSE: PB) is acquiring Stellar Bancorp in a deal expected to close July 1. 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 \u00a0Sector July 6, 2026 S&amp;P MidCap 400 Addition Allison Transmission ALSN Industrials July &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; Rubber to Join S&amp;P SmallCap 600&#8221;<\/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-977441","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; Rubber to Join S&amp;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\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-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=\"Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; Rubber to Join S&amp;P SmallCap 600 - Market Newsdesk\" \/>\n<meta property=\"og:description\" content=\"PR Newswire NEW YORK, June 30, 2026 \/PRNewswire\/ &#8212; Allison Transmission Holdings Inc. (NYSE:\u00a0ALSN) will replace Goodyear Tire &amp; Rubber Co. (NASD: GT) in the S&amp;P MidCap 400, and Goodyear Tire &amp; Rubber will replace Stellar Bancorp Inc. (NYSE: STEL) in the S&amp;P SmallCap 600 effective prior to the opening of trading on Monday, July 6. S&amp;P MidCap 400 constituent Prosperity Bancshares Inc. (NYSE: PB) is acquiring Stellar Bancorp in a deal expected to close July 1. 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 \u00a0Sector July 6, 2026 S&amp;P MidCap 400 Addition Allison Transmission ALSN Industrials July &hellip; Continue reading &quot;Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; Rubber to Join S&amp;P SmallCap 600&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/\" \/>\n<meta property=\"og:site_name\" content=\"Market Newsdesk\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-30T21:45:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/edge.prnewswire.com\/c\/img\/favicon.png?sn=NY95997&amp;sd=2026-06-30\" \/>\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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/index.php\\\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\\\/\"},\"author\":{\"name\":\"Newsdesk\",\"@id\":\"https:\\\/\\\/www.marketnewsdesk.com\\\/#\\\/schema\\\/person\\\/482f27a394d4fda80ecb5499e519d979\"},\"headline\":\"Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; 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Rubber to Join S&amp;P SmallCap 600 - Market Newsdesk","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/","og_locale":"en_US","og_type":"article","og_title":"Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; Rubber to Join S&amp;P SmallCap 600 - Market Newsdesk","og_description":"PR Newswire NEW YORK, June 30, 2026 \/PRNewswire\/ &#8212; Allison Transmission Holdings Inc. (NYSE:\u00a0ALSN) will replace Goodyear Tire &amp; Rubber Co. (NASD: GT) in the S&amp;P MidCap 400, and Goodyear Tire &amp; Rubber will replace Stellar Bancorp Inc. (NYSE: STEL) in the S&amp;P SmallCap 600 effective prior to the opening of trading on Monday, July 6. S&amp;P MidCap 400 constituent Prosperity Bancshares Inc. (NYSE: PB) is acquiring Stellar Bancorp in a deal expected to close July 1. 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 \u00a0Sector July 6, 2026 S&amp;P MidCap 400 Addition Allison Transmission ALSN Industrials July &hellip; Continue reading \"Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; Rubber to Join S&amp;P SmallCap 600\"","og_url":"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/","og_site_name":"Market Newsdesk","article_published_time":"2026-06-30T21:45:06+00:00","og_image":[{"url":"https:\/\/edge.prnewswire.com\/c\/img\/favicon.png?sn=NY95997&amp;sd=2026-06-30","type":"","width":"","height":""}],"author":"Newsdesk","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Newsdesk","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/#article","isPartOf":{"@id":"https:\/\/www.marketnewsdesk.com\/index.php\/allison-transmission-holdings-set-to-join-sp-midcap-400-and-goodyear-tire-rubber-to-join-sp-smallcap-600\/"},"author":{"name":"Newsdesk","@id":"https:\/\/www.marketnewsdesk.com\/#\/schema\/person\/482f27a394d4fda80ecb5499e519d979"},"headline":"Allison Transmission Holdings Set to Join S&amp;P MidCap 400 and Goodyear Tire &amp; 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