{"id":217739,"date":"2025-01-23T11:00:00","date_gmt":"2025-01-23T16:00:00","guid":{"rendered":"https:\/\/ibkrcampus.com\/campus\/?p=217739"},"modified":"2025-01-24T03:40:08","modified_gmt":"2025-01-24T08:40:08","slug":"fun-or-lack-thereof-with-advance-declines","status":"publish","type":"post","link":"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/securities\/stocks\/fun-or-lack-thereof-with-advance-declines\/","title":{"rendered":"Fun (or Lack Thereof) With Advance-Declines"},"content":{"rendered":"\n<p>In theory, if not in practice, moves in major indices should be confirmed by breadth.&nbsp; We tend to focus on indices that are weighted by market capitalization, so many choose to check to see whether a wide range of stocks are participating in a rally that might be disproportionately led by the largest companies.&nbsp; The current environment features one of the most <a href=\"https:\/\/www.morningstar.com\/news\/marketwatch\/20240617102\/how-top-heavy-is-the-stock-market\">top-heavy index compositions in decades<\/a>, meaning that a least recently, breadth hasn\u2019t mattered.&nbsp; But historically it has, so we would like to check whether broad-based indices and advance-decline measures are keeping pace with the more concentrated indices.<\/p>\n\n\n\n<p>One simple way to examine the relative amount of market participation is to compare the S&amp;P 500 (SPX) with its equal-weighted version (SPW) and the NYSE Composite Index (NYA).&nbsp; We see that the latter two measures have performed similarly, but significantly worse than SPX:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-years-spx-blue-white-candles-spw-blue-line-nya-red-line\"><strong><em>3-Years, SPX (blue\/white candles), SPW (blue line), NYA (red line)<\/em><\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1100\" height=\"704\" data-src=\"https:\/\/www.interactivebrokers.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture5-7-1100x704.png\" alt=\"3-Years, SPX (blue\/white candles), SPW (blue line), NYA (red line)\" class=\"wp-image-217745 lazyload\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture5-7-1100x704.png 1100w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture5-7-700x448.png 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture5-7-300x192.png 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture5-7-768x491.png 768w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture5-7-1536x982.png 1536w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture5-7.png 1723w\" data-sizes=\"(max-width: 1100px) 100vw, 1100px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1100px; aspect-ratio: 1100\/704;\" \/><\/figure>\n\n\n\n<p><em>Source: Bloomberg<\/em><\/p>\n\n\n\n<p>Interestingly, when we compare the Nasdaq 100 (NDX) to the Nasdaq Composite (CCMP), the performance gap is far narrower.&nbsp; Part of the reason for CCMP\u2019s better tracking vs. NDX as opposed to NYA\u2019s tracking vs. SPX is because the megacap technology that are dominating that index are all Nasdaq listed:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-years-ndx-purple-ccmp-yellow\"><strong><em>3-Years, NDX (purple), CCMP (yellow)<\/em><\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1100\" height=\"713\" data-src=\"https:\/\/www.interactivebrokers.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture4-10-1100x713.png\" alt=\"3-Years, NDX (purple), CCMP (yellow)\" class=\"wp-image-217744 lazyload\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture4-10-1100x713.png 1100w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture4-10-700x454.png 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture4-10-300x194.png 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture4-10-768x498.png 768w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture4-10-1536x995.png 1536w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture4-10.png 1705w\" data-sizes=\"(max-width: 1100px) 100vw, 1100px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1100px; aspect-ratio: 1100\/713;\" \/><\/figure>\n\n\n\n<p><em>Source: Bloomberg<\/em><\/p>\n\n\n\n<p>Within the indices some advance-decline lines are keeping up with their benchmarks much better than others.&nbsp; For example, when we compare SPX to its cumulative advance-declines, we see that while the latest rally is not quite confirmed by the A\/D line, it is not that far off.&nbsp; This comes, mind you, after a period in December when <a href=\"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/securities\/stocks\/it-went-to-11\/\">we went weeks<\/a> with SPX decliners outpacing advancers, even as the index rose:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-years-spx-blue-cumulative-spx-advances-declines-white\"><strong><em>3-Years, SPX (blue), Cumulative SPX Advances-Declines (white)<\/em><\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1100\" height=\"715\" data-src=\"https:\/\/www.interactivebrokers.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture3-12-1100x715.png\" alt=\"3-Years, SPX (blue), Cumulative SPX Advances-Declines (white)\" class=\"wp-image-217743 lazyload\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture3-12-1100x715.png 1100w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture3-12-700x455.png 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture3-12-300x195.png 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture3-12-768x499.png 768w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture3-12-1536x998.png 1536w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture3-12.png 1704w\" data-sizes=\"(max-width: 1100px) 100vw, 1100px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1100px; aspect-ratio: 1100\/715;\" \/><\/figure>\n\n\n\n<p><em>Source: Bloomberg<\/em><\/p>\n\n\n\n<p>We see something similar with NYA and the NYSE cumulative A\/D line:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-years-nya-orange-nyse-a-d-line-red\"><strong><em>3-Years, NYA (orange), NYSE A\/D line (red)<\/em><\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1100\" height=\"729\" data-src=\"https:\/\/www.interactivebrokers.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture2-20-1100x729.png\" alt=\"3-Years, NYA (orange), NYSE A\/D line (red)\" class=\"wp-image-217742 lazyload\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture2-20-1100x729.png 1100w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture2-20-700x464.png 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture2-20-300x199.png 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture2-20-768x509.png 768w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture2-20-1536x1018.png 1536w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture2-20.png 1708w\" data-sizes=\"(max-width: 1100px) 100vw, 1100px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1100px; aspect-ratio: 1100\/729;\" \/><\/figure>\n\n\n\n<p><em>Source: Bloomberg<\/em><\/p>\n\n\n\n<p>Yet by the same measure, both NDX and CCMP fall far short.&nbsp; The Nasdaq cumulative A\/D line has seemingly been in freefall even as the indices soar.&nbsp; That said, this has been occurring for years with few ill effects, if any:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-years-ndx-yellow-ccmp-magenta-nasdaq-cumulative-a-d-green\"><strong><em>3-Years, NDX (yellow), CCMP (magenta), Nasdaq Cumulative A\/D (green)<\/em><\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1100\" height=\"715\" data-src=\"https:\/\/www.interactivebrokers.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture1-28-1100x715.png\" alt=\"3-Years, NDX (yellow), CCMP (magenta), Nasdaq Cumulative A\/D (green)\" class=\"wp-image-217741 lazyload\" data-srcset=\"https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture1-28-1100x715.png 1100w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture1-28-700x455.png 700w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture1-28-300x195.png 300w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture1-28-768x499.png 768w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture1-28-1536x999.png 1536w, https:\/\/ibkrcampus.com\/campus\/wp-content\/uploads\/sites\/2\/2025\/01\/Picture1-28.png 1698w\" data-sizes=\"(max-width: 1100px) 100vw, 1100px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1100px; aspect-ratio: 1100\/715;\" \/><\/figure>\n\n\n\n<p><em>Source: Bloomberg<\/em><\/p>\n\n\n\n<p>Bottom line: for the most part, breadth has been keeping up with major indices.&nbsp; Certainly, there is underperformance when we compare SPW to SPX, and the drop in the Nasdaq A\/D line is quite staggering, but on the whole, these should not be cause for immediate concern.&nbsp; Yet we have seen some index dips when the A\/D lines fail to confirm new highs.&nbsp; It bears watching but not panic.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In theory, if not in practice, moves in major indices should be confirmed by breadth.  We tend to focus on indices that are weighted by market capitalization, so many choose to check to see whether a wide range of stocks are participating in a rally that might be disproportionately led by the largest companies.  <\/p>\n","protected":false},"author":4,"featured_media":200326,"comment_status":"open","ping_status":"closed","sticky":true,"template":"","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"categories":[6,8,9,22,26,3],"tags":[],"contributors-categories":[13576],"class_list":{"0":"post-217739","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-north-america","8":"category-region","9":"category-securities","10":"category-stocks","11":"category-text-articles","12":"category-traders-insight","13":"contributors-categories-interactive-brokers"},"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Fun (or Lack Thereof) With Advance-Declines<\/title>\n<meta name=\"description\" content=\"In theory, if not in practice, moves in major indices should be confirmed by breadth. 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