{"id":135471,"date":"2026-01-21T17:50:06","date_gmt":"2026-01-21T22:50:06","guid":{"rendered":"https:\/\/professional.content.cirrus.bloomberg.com\/professional2023\/insights\/trading\/how-automation-tca-and-broker-wheels-work-together-in-modern-equity-ems\/"},"modified":"2026-01-22T15:35:16","modified_gmt":"2026-01-22T20:35:16","slug":"how-automation-tca-and-broker-wheels-work-together-in-modern-equity-ems","status":"publish","type":[3762],"link":"https:\/\/professional.content.cirrus.bloomberg.com\/professional2023\/insights\/trading\/how-automation-tca-and-broker-wheels-work-together-in-modern-equity-ems\/","title":{"rendered":"How automation, TCA and broker wheels work together in modern equity EMS"},"content":{"rendered":"<div  class=\"bbg-row-container\">\n\t<section\n\tclass='bbg-row  text--black row-padding--top-compact row-padding--bottom-none bbg-row--full-bg-bleed' data-anchor='row-69d1154f97d22'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<p><div\n    class=\"bbg-column bbg-column--width-7\"\n    style=\"\"\n    >\n    <p><div\n    class=\"bbg-spacer bbg-spacer--lg\"\n    >\n<\/div>\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p class=\"small\"><strong><span style=\"font-size: 14px; letter-spacing: 1px; color: #0062dd;\">ARTICLE<\/span><\/strong><\/p>\n\t\t\t<\/div>\n\n\t\t\t<div\n    class=\"bbg-spacer bbg-spacer--sm\"\n    >\n<\/div>    <h1 class=\"bbg-metadata bbg-metadata--title\">How automation, TCA and broker wheels work together in modern equity EMS<\/h1>\n<div\n    class=\"bbg-spacer\"\n        style=\"height: 50px !important\"\n    >\n<\/div>    <ul class=\"bbg-categories_list\">\n                    <li>\n                <a href=\"https:\/\/professional.content.cirrus.bloomberg.com\/professional2023\/insights\/category\/financial-services\/\" rel=\"category tag\">\n                    Financial Services\n                <\/a>\n            <\/li>\n                    <li>\n                <a href=\"https:\/\/professional.content.cirrus.bloomberg.com\/professional2023\/insights\/category\/markets\/\" rel=\"category tag\">\n                    Markets\n                <\/a>\n            <\/li>\n                    <li>\n                <a href=\"https:\/\/professional.content.cirrus.bloomberg.com\/professional2023\/insights\/category\/technology\/\" rel=\"category tag\">\n                    Technology\n                <\/a>\n            <\/li>\n                    <li>\n                <a href=\"https:\/\/professional.content.cirrus.bloomberg.com\/professional2023\/insights\/category\/trading\/\" rel=\"category tag\">\n                    Trading\n                <\/a>\n            <\/li>\n            <\/ul>\n<\/p>\n\n<\/div><div\n    class=\"bbg-column bbg-column--width-5\"\n    style=\"\"\n    >\n    <div id=\"\" class=\"wpb_content_element bbg-single-image align-left\">\n    <figure class=\"bbg-single-image__figure\" style=\"max-width:100%\">\n                <img loading=\"lazy\" decoding=\"async\" width=\"3200\" height=\"2133\" src=\"https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg\" class=\"bbg-single-image__image attachment-full\" alt=\"Bloomberg Terminal Keyboard\" title=\"Bloomberg Terminal Keyboard\" srcset=\"https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg 3200w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg 552w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg 800w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg 768w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg 1536w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg 2048w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Keyboard-4P9A9210.jpg 162w\" sizes=\"auto, (max-width: 3200px) 100vw, 3200px\" \/>\n        \n            <\/figure>\n<\/div>\n\n\n\n<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/section>\n<\/div>\n<div  class=\"bbg-row-container\">\n\t<section\n\tclass='bbg-row  text--black row-padding--top-none row-padding--bottom-none bbg-row--full-bg-bleed' data-anchor='row-69d1154fa0e78'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<p><div\n    class=\"bbg-column bbg-column--width-2\"\n    style=\"\"\n    >\n    \n<\/div><div\n    class=\"bbg-column bbg-column--width-6 bbg-column--m-width-6\"\n    style=\"\"\n    >\n    <p>    <p class=\"bbg-metadata bbg-metadata--date\">January 21, 2026<\/p>\n\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p><strong>Bloomberg Professional Services<\/strong><\/p>\n\t\t\t<\/div>\n\n<\/div><div\n    class=\"bbg-column bbg-column--width-2 bbg-column--valign-middle bbg-column--m-width-2 bbg-column--s-padding-right-2\"\n    style=\"\"\n    >\n    \t\t<div class=\"bb-tts\" \n\t\t\tdata-selector=\"main\"\n\t\t\tdata-label=\"Speak this page\"\n\t\t\tdata-custom-play=\"Play\"\n\t\t\tdata-custom-pause=\"Pause\"\n\t\t\tdata-custom-stop=\"Stop\" \n\t\t\tdata-overlay=\"false\" \n\t\t\tdata-invert=\"false\"\n\t\t\tdata-no-time=\"false\"\n\t\t\tdata-no-button-text=\"false\"\n\t\t\tdata-one-button=\"true\"\n\t\t\tdata-one-style=\"true\"\n\t\t\tdata-hide-stop=\"true\"\n\t\t\tdata-voice=\"Gordon\"\n\t\t\tdata-pitch=\"1\"\n\t\t\tdata-speed=\"1\"\n\t\t\tdata-align=\"flex-start\"\n\t\t>\n\t\t<\/div>\n\t\t\n\n<\/div><div\n    class=\"bbg-column bbg-column--width-2\"\n    style=\"\"\n    >\n    \n<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/section>\n<\/div>\n<div  class=\"bbg-row-container\">\n\t<section\n\tclass='bbg-row  text--black row-padding--top-none row-padding--bottom-compact bbg-row--full-bg-bleed' data-anchor='row-69d1154fa2cb6'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<p><div\n    class=\"bbg-column bbg-column--width-2\"\n    style=\"\"\n    >\n    \n<\/div><div\n    class=\"bbg-column bbg-column--width-8 bbg-column--has-bg-color\"\n    style=\"background-color:#e6f3ff;border-radius: 16px 16px 16px 16px;\"\n    >\n    <div class=\"wpb_content_element bbg-card  bbg-card-custom bbg-card-text-black\" id=\"card_1\" data-card_type=\"no_image\">\n      <style>#card_1 .bbg-card__innerwrapper {background-color: #e6f3ff;}#card_1 .bbg-card__innerwrapper {\n\tborder: 1px solid #e6f3ff !important;\n\t}#card_1:hover .bbg-card__innerwrapper {\n\tborder: 1px solid #e6f3ff !important;\n\t}#card_1 .bbg-card__innerwrapper {\n\tpadding: calc(var(--brand-large-padding, 40px) - 1px) !important;\n\t}#card_1 .bbg-card__innerwrapper .bbg-card__title {\n\tcolor: #000000 !important;\n\t}#card_1 .bbg-card__innerwrapper .bbg-card__content,#card_1 .bbg-card__innerwrapper .bbg-card__content p  {\n\tcolor: #000000 !important;\n\t}#card_1.bbg-card_hasImage .bbg-card__innerwrapper{padding-top: calc(var(--brand-default-padding, 16px) - 1px);padding-left: calc(var(--brand-default-padding, 16px) - 1px);padding-right: calc(var(--brand-default-padding, 16px) - 1px);}<\/style>\n  \n  \n  <div class=\"bbg-card__innerwrapper\">\n    <div class=\"bbg-card__content\">\n      \n              <div class=\"bbg-card__eyebrow\" style=\"color: #000000\">KEY TAKEAWAYS<\/div>\n      \n      \n              <div class=\"bbg-card__wysiwyg bb-wysiwyg\"><\/p>\n<ul>\n<li>Desks using automated workflows and wheels often see better consistency and, in some cases, stronger performance than manual processes.<\/li>\n<li>Wheels help manage growing execution complexity by promoting more consistent and reviewable decision-making.<\/li>\n<li>Linking pre-trade TCA, rule-based routing, wheels, and post-trade analysis can help desks refine allocations and parameters over time.<\/li>\n<li>Wheels can reduce operational effort and parameter inconsistency while still allowing trader input for higher-touch or higher-ADV orders.<\/li>\n<\/ul>\n<p>\n<\/div>\n          <\/div>\n\n      <\/div>\n\n  <\/div>\n\n\n<\/div><div\n    class=\"bbg-column bbg-column--width-2\"\n    style=\"\"\n    >\n    \n<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/section>\n<\/div>\n<div  class=\"bbg-row-container\">\n\t<section\n\tclass='bbg-row  text--black row-padding--top-compact row-padding--bottom-compact bbg-row--full-bg-bleed' data-anchor='row-69d1154fa58aa'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<p><div\n    class=\"bbg-column bbg-column--width-2\"\n    style=\"\"\n    >\n    \n<\/div><div\n    class=\"bbg-column bbg-column--width-8\"\n    style=\"\"\n    >\n    \t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p><span data-contrast=\"auto\">Trading automation is now native to the\u00a0<a href=\"https:\/\/www.bloomberg.com\/professional\/products\/trading\/execution-management-system\/\">Execution Management System (EMS).<\/a><\/span><\/p>\n<p>Orders routed to algos, dark pools, RFQs, and high-touch desks are increasingly automated; the nuisance work is disappearing, and productivity on the desk is rising<\/p>\n\t\t\t<\/div>\n\n\t\t\t\n\n<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/section>\n<\/div>\n<div  class=\"bbg-row-container\">\n\t<section\n\tclass='bbg-row  text--black row-padding--top-none row-padding--bottom-none bbg-row--full-bg-bleed' data-anchor='row-69d1154fa6f9d'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<p><div\n    class=\"bbg-column bbg-column--width-3\"\n    style=\"\"\n    >\n    <p><div\n    class=\"bbg-spacer bbg-spacer--sm\"\n    >\n<\/div><hr class=\"bbg-separator bbg-separator-1\" style=\"height:1px;\" \/>\n<div\n    class=\"bbg-spacer\"\n        style=\"height: 32px !important\"\n    >\n<\/div>\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p class=\"small\"><strong><span style=\"font-size: 14px; letter-spacing: 1px;\">PRODUCT MENTIONS<\/span><\/strong><\/p>\n\t\t\t<\/div>\n\n\t\t\t\n<div\n  id=\"cta_6687530487626060406\"\n  class=\"wpb_content_element bbg-cta no-icon\">\n  <style>\n    \n    \n    \n  <\/style>\n  <div\n    class=\"bbg-cta-link link-holder\"\n    data-links-type=\"cta-links\">\n    <p class=\"bbg-cta-p left\">\n      <a\n        class=\"bbg-cta-link link\"\n        href=\"https:\/\/www.bloomberg.com\/professional\/products\/trading\/pre-trade\/\"\n        target=\"\"\n        rel=\"\"\n        data-section-name=\"TCA\"\n        >\n                      TCA\n                <\/a>\n    <\/p>\n  <\/div>\n<\/div>\n<div\n    class=\"bbg-spacer bbg-spacer--sm\"\n    >\n<\/div>\n<div\n  id=\"cta_3796605917483273362\"\n  class=\"wpb_content_element bbg-cta no-icon\">\n  <style>\n    \n    \n    \n  <\/style>\n  <div\n    class=\"bbg-cta-link link-holder\"\n    data-links-type=\"cta-links\">\n    <p class=\"bbg-cta-p left\">\n      <a\n        class=\"bbg-cta-link link\"\n        href=\"https:\/\/www.bloomberg.com\/professional\/products\/trading\/execution-management-system\/\"\n        target=\"\"\n        rel=\"\"\n        data-section-name=\"Execution Management System\"\n        >\n                      Execution Management System\n                <\/a>\n    <\/p>\n  <\/div>\n<\/div>\n<div\n    class=\"bbg-spacer bbg-spacer--sm\"\n    >\n<\/div>\n<div\n  id=\"cta_8952977685399787308\"\n  class=\"wpb_content_element bbg-cta no-icon\">\n  <style>\n    \n    \n    \n  <\/style>\n  <div\n    class=\"bbg-cta-link link-holder\"\n    data-links-type=\"cta-links\">\n    <p class=\"bbg-cta-p left\">\n      <a\n        class=\"bbg-cta-link link\"\n        href=\"https:\/\/www.bloomberg.com\/professional\/explore\/electronic-trading\/trade-automation\/\"\n        target=\"\"\n        rel=\"\"\n        data-section-name=\"Trade Automation\"\n        >\n                      Trade Automation\n                <\/a>\n    <\/p>\n  <\/div>\n<\/div>\n<div\n    class=\"bbg-spacer\"\n        style=\"height: 32px !important\"\n    >\n<\/div><hr class=\"bbg-separator bbg-separator-1\" style=\"height:1px;\" \/>\n<\/p>\n\n<\/div><div\n    class=\"bbg-column bbg-column--width-1\"\n    style=\"\"\n    >\n    \n<\/div><div\n    class=\"bbg-column bbg-column--width-6\"\n    style=\"\"\n    >\n    \t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p>This steady march has pushed broker wheels from a \u201cnice-to-have\u201d to central infrastructure.\u00a0<a href=\"https:\/\/www.bloomberg.com\/company\/press\/bloomberg-study-finds-automated-equity-trading-results-in-improved-performance\/\">Bloomberg\u2019s 2024 study<\/a>\u00a0found that firms using equity automation for any part of their workflows see, on average, a\u00a0<strong>3 bps<\/strong>\u00a0improvement in overall desk alpha vs. peers that do not. Within firms that do automate, automated workflows outperform comparable manual ones by\u00a0<strong>5 bps<\/strong>\u2014 suggesting that trading desks not adopting automation features such as wheels and rule-based trading may not be operating optimally. \u00b9<\/p>\n<p>The expansion of algorithmic trading brings choice and complexity. There are many sophisticated broker algos; picking the right one for a given order can\u2019t rely on memory or heuristics. Desks that implement a structured, auditable framework for selection and review take back control of execution, manage costs deliberately, and improve steadily over time.<\/p>\n\t\t\t<\/div>\n\n\t\t\t\n\n<\/div><div\n    class=\"bbg-column bbg-column--width-2\"\n    style=\"\"\n    >\n    \n<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/section>\n<\/div>\n<div  class=\"bbg-row-container\">\n\t<section\n\tclass='bbg-row  text--black row-padding--top-none row-padding--bottom-none bbg-row--margin-top-compact bbg-row--margin-bottom-compact bbg-row--full-bg-bleed' data-anchor='row-69d1154faa848'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<div\n    class=\"bbg-column\"\n    style=\"\"\n    >\n    <div class=\"bbg-interstitial\" aria-label=\"interstitial\" tabindex=\"0\">\n\t<style>\n\t\t.bbg-interstitial #card_2.bbg-card_hasCta{\n\t\t\tbackground: url(https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/Interstitial_bg.png);\n\t\t\t\tbackground-repeat: no-repeat;\n\t\t\t\tbackground-position: center center;\n\t\t\t\tbackground-size: cover;\n\t\t\tpadding: 104px;\n\t\t\t\n\t\t\t\n\t\t}\n\t\t.bbg-interstitial #card_2.bbg-card_hasCta .bbg-card__content, .bbg-interstitial #card_2.bbg-card_hasCta .bbg-card__content p{\n\t\t\tcolor:white;\n\t\t}\n\t\t@media (max-width: 768px) {\n\t\t\t.bbg-interstitial #card_2.bbg-card_hasCta{\n\t\t\t\tpadding: 80px 32px;\n\t\t\t}\n\t\t}\n\t\t@media (max-width: 480px) {\n\t\t\t.bbg-interstitial #card_2.bbg-card_hasCta{\n\t\t\t\tpadding: 80px 18px;\n\t\t\t}\n\t\t}\n\t<\/style>\n\t<div class=\"wpb_content_element bbg-card  bbg-card-dark bbg-card_hasCta has_interstitial\" id=\"card_2\" data-card_type=\"no_image\">\n  \n  \n  <div class=\"bbg-card__innerwrapper\">\n    <div class=\"bbg-card__content\">\n      \n      \n                      <h3 class=\"bbg-card__title\">Discover more with Bloomberg newsletters<\/h3>\n      \n              <div class=\"bbg-card__wysiwyg bb-wysiwyg\"><p>Subscribe now<\/p>\n<\/div>\n          <\/div>\n\n          \n<div\n  id=\"cta_7856503432025465907\"\n  class=\"wpb_content_element bbg-cta icon icon-arrow\">\n  <style>\n    \n    \n    \n  <\/style>\n  <div\n    class=\"bbg-cta-link link-holder\"\n    data-links-type=\"cta-links\">\n    <p class=\"bbg-cta-p right\">\n      <a\n        class=\"bbg-cta-link link interstitial_cta\"\n        href=\"https:\/\/www.bloomberg.com\/professional\/insights\/newsletter\/\"\n        target=\"\"\n        rel=\"\"\n        data-section-name=\"\"\n                role=\"button\"\n        aria-label=\"Learn more\"\n        >\n                <\/a>\n    <\/p>\n  <\/div>\n<\/div>\n\n      <\/div>\n\n  <\/div>\n\n<\/div>\n\n\n<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/section>\n<\/div>\n<div  class=\"bbg-row-container\">\n\t<section\n\tclass='bbg-row  text--black row-padding--top-none row-padding--bottom-none bbg-row--full-bg-bleed' data-anchor='row-69d1154fad7ce'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<p><div\n    class=\"bbg-column bbg-column--width-2\"\n    style=\"\"\n    >\n    \n<\/div><div\n    class=\"bbg-column bbg-column--width-8\"\n    style=\"\"\n    >\n    \t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<h2 class=\"large\"><span class=\"TextRun SCXW184843411 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW184843411 BCX0\" data-ccp-parastyle=\"heading 2\">The\u00a0<\/span><span class=\"NormalTextRun SCXW184843411 BCX0\" data-ccp-parastyle=\"heading 2\">operating model: a closed loop that learns<\/span><\/span><span class=\"EOP SCXW184843411 BCX0\" data-ccp-props=\"{&quot;134233279&quot;:true,&quot;134245418&quot;:true,&quot;134245529&quot;:true,&quot;201341983&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/h2>\n\t\t\t<\/div>\n\n\t\t\t\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p>Inside Bloomberg\u2019s EMS, each order runs through a defined decision framework\u2014codified in RBLD, the rule\u2011based engine\u2014so \u201cwhen, how, and where\u201d routing happens by design, not by habit. Pre\u2011trade Transaction Cost Analysis (TCA) informs those rules by scoring expected difficulty using %ADV, liquidity, volatility, and spread. Similar orders are treated consistently, without slowing the desk.<\/p>\n<p>From there, WHLS (the wheel) allocates flow across brokers\/algos using target weights and parameter templates (aggression, participation, algo type) to keep intent consistent. Wheels run zero\u2011touch, On\u2011Demand (trader\u2011initiated), or hybrid\u2014and support A\/B testing by duplicating entries with single\u2011parameter tweaks to learn quickly and objectively.<\/p>\n<p>Executions feed Bloomberg Transaction Cost Analysis (BTCA), which tags each order by rule, wheel, and routing type so desks can compare like\u2011for\u2011like (implementation shortfall, fill rate, dispersion), then push insights back into RBLD\/WHLS for reweights and template refinement. It\u2019s a governed feedback loop that compounds.<\/p>\n<p>Among listed\u2011equities RBLD users, ~90% of orders and ~85% of USD notional route via automated wheels. An illustrative setup: 4 regional wheels, ~7 strategies from ~6 brokers, and quarterly reconfiguration. Update mix: ~65% weight changes, ~15% adds, ~10% removals. On\u2011Demand workflows account for ~10% of wheel flow. (Outcomes vary by desk and configuration.)<\/p>\n\t\t\t<\/div>\n\n\t\t\t<div id=\"\" class=\"wpb_content_element bbg-single-image align-center\">\n    <figure class=\"bbg-single-image__figure\" style=\"max-width:1024px\">\n                <img loading=\"lazy\" decoding=\"async\" width=\"710\" height=\"480\" src=\"https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-11.png\" class=\"bbg-single-image__image attachment-large\" alt=\"What actually changes on the desk and why it matters\" title=\"What actually changes on the desk and why it matters\" srcset=\"https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-11.png 710w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-11.png 552w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-11.png 160w\" sizes=\"auto, (max-width: 710px) 100vw, 710px\" \/>\n        \n            <\/figure>\n<\/div>\n\n\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<h2 class=\"large\"><span class=\"NormalTextRun SCXW182450889 BCX0\">What\u00a0<\/span><span class=\"NormalTextRun AdvancedProofingIssueV2Themed SCXW182450889 BCX0\">actually changes<\/span><span class=\"NormalTextRun SCXW182450889 BCX0\">\u00a0on the desk and why it matters<\/span><\/h2>\n\t\t\t<\/div>\n\n\t\t\t\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<h3><strong>1) Allocation discipline you can audit\u2014without spreadsheets<\/strong><\/h3>\n<p>Keeping five brokers near 20% each is busy work if you do it manually. With pre-trade TCA grouping comparable orders, RBLD setting eligibility, WHLS enforcing target weights\/templates, and BTCA validating outcomes, allocation stays on target and defensible. For example, an illustrative wheel might cover ~7 strategies across ~6 brokers, and be reviewed roughly every three months. This type of set up now drives ~90% of listed equity orders among RBLD users.<\/p>\n<h3><strong>2) Like-for-like broker reviews with credible sample sizes<\/strong><\/h3>\n<p>Wheels normalize inputs so broker comparisons are like-for-like. A desk might, for a VWAP neutral bucket of U.S. large-cap orders (0.2\u20130.5% ADV) split evenly across five brokers, see initial BTCA results like:<\/p>\n\t\t\t<\/div>\n\n\t\t\t<div id=\"\" class=\"wpb_content_element bbg-single-image align-center\">\n    <figure class=\"bbg-single-image__figure\" style=\"max-width:1024px\">\n                <img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"191\" src=\"https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-2.5.png\" class=\"bbg-single-image__image attachment-large\" alt=\"Like-for-like broker reviews with credible sample sizes\" title=\"Like-for-like broker reviews with credible sample sizes\" srcset=\"https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-2.5.png 800w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-2.5.png 552w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-2.5.png 768w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-2.5.png 192w, https:\/\/assets.bbhub.io\/image\/v1\/resize?width=auto&amp;type=webp&amp;url=https:\/\/assets.bbhub.io\/professional\/sites\/41\/WHLS-2.5.png 1028w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\n        \n            <\/figure>\n<\/div>\n\n\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p>After analyzing performance, assume the trader rebalances the wheel to\u00a0<strong>25\/25\/20\/15\/15<\/strong>.<strong><br \/>\n<\/strong><\/p>\n<p>In the following quarter, dispersion narrows (<strong>IS stdev. \u221218%<\/strong>) and average implementation shortfall improves by about\u00a0<strong>2 bps<\/strong>. All adjustments and outcomes are documented through governance for transparency and oversight.<\/p>\n<h3><strong>3) Continuous algo selection without parameter fatigue<\/strong><\/h3>\n<p>Remembering parameters order by order creates inconsistency. Wheels map profiled flow (e.g., VWAP neutral) to standardized templates, so aggression\/participation stay coherent across brokers.<\/p>\n<p>Need to experiment? Duplicate a broker entry, flip one parameter, and let BTCA judge. Among listed\u2011equities RBLD users, most desks prioritize finetuning over churn\u2014~65% of updates are weight\/parameter adjustments; ~15% add new strategies.<\/p>\n<h3><strong>4) High ADV and time-staged execution (with trader control)<\/strong><\/h3>\n<p>High\u2011ADV orders demand careful slicing to curb impact and leakage while still honoring allocation targets. EMSX On\u2011Demand Wheel lets traders send full, partial, or grouped orders on their schedule; WHLS quietly keeps allocations aligned over time. BTCA tags zero\u2011touch vs. trader\u2011initiated to compare styles. In practice, ~10% of wheel flow uses On\u2011Demand, with ~5% devoted specifically to high\u2011ADV management.<\/p>\n\t\t\t<\/div>\n\n\t\t\t\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<h2>Why leading desks standardize wheels<\/h2>\n\t\t\t<\/div>\n\n\t\t\t\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p>Wheels institutionalize good trading: they codify intent, enforce consistency, create audit trails, and build a learning loop that improves results over time. They reduce operational drag, make broker governance credible, and free traders to focus on the exceptions that actually need human judgment. The framework\u2014not any single feature\u2014is what scales.<\/p>\n\t\t\t<\/div>\n\n\t\t\t\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<h2>Conclusion<span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559738&quot;:0,&quot;335559739&quot;:0,&quot;335559740&quot;:240}\">\u00a0<\/span><\/h2>\n\t\t\t<\/div>\n\n\t\t\t\t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<p>Automation isn\u2019t just speeding up routing; it\u2019s redefining how execution is managed. Wheels connect pre\u2011trade insight, rule\u2011based eligibility, and post\u2011trade measurement into a single, auditable operating model. The outcome is repeatable: consistent decisions, transparent governance, and measurable performance gains\u2014from rules to results\u2014and a desk that gets better every quarter it runs the loop.<\/p>\n\t\t\t<\/div>\n\n<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/section>\n<\/div>\n<div  class=\"bbg-row-container\">\n\t<style>section[data-anchor=row-69d1154fb4072]::before {\n\t\t\t\tbackground-color: #f4f4f9;\n\t\t\t}<\/style>\t<section\n\tclass='bbg-row bg--custom-color  bg--f4f4f9 text--black bbg-row--full-bg-bleed' data-anchor='row-69d1154fb4072'\t>\n\t\t\t\t<div class=\"\n\t\tbbg-row--content\t\t\"\n>\n\t\t\t\t\t\t<p><div\n    class=\"bbg-column bbg-column--width-8\"\n    style=\"\"\n    >\n    \t\t\t<div\n\t\t\tclass='bb-wysiwyg ' style=''>\n\t\t\t<h3>Related Content<\/h3>\n\t\t\t<\/div>\n\n\t\t\t\n\n<\/div><div\n    class=\"bbg-column bbg-column--width-4 bbg-column--halign-right\"\n    style=\"\"\n    >\n    \n<div\n  id=\"cta_3331515565893600592\"\n  class=\"wpb_content_element bbg-cta 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Explore how you can use WHLS to build a learning loop that improves results over time.<\/p>\n","protected":false},"author":1938,"featured_media":100406,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"template-article.php","format":"standard","meta":{"_yoast_wpseo_primary_category":"444","footnotes":""},"categories":[457,453,3661,444],"tags":[3835,3847],"series":[],"class_list":["post-135471","post","type-post","status-publish","format-standard","hentry","category-financial-services","category-markets","category-technology","category-trading","tag-ets","tag-ets_2026","type-article"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.11 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How automation, TCA and broker wheels work together in modern equity EMS | Insights | Bloomberg Professional Services<\/title>\n<meta name=\"description\" content=\"How can automation improve performance gains? 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