{"id":3608,"date":"2022-12-15T16:46:08","date_gmt":"2022-12-15T16:46:08","guid":{"rendered":"https:\/\/www.eha-consulting.com\/?p=3608"},"modified":"2022-12-16T09:37:58","modified_gmt":"2022-12-16T09:37:58","slug":"twitter-et-les-marches-financiers-plus-de-10-ans-dinfluence","status":"publish","type":"post","link":"https:\/\/www.eha-consulting.com\/en\/twitter-et-les-marches-financiers-plus-de-10-ans-dinfluence\/","title":{"rendered":"Twitter et les march\u00e9s financiers, plus de 10 ans d\u2019influence\ufffc"},"content":{"rendered":"\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"824\" height=\"428\" data-id=\"3609\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174159.png\" alt=\"\" class=\"wp-image-3609\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174159.png 824w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174159-300x156.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174159-768x399.png 768w\" sizes=\"auto, (max-width: 824px) 100vw, 824px\" \/><figcaption><strong><em>Twitter&nbsp;est toujours une source d\u2019instabilit\u00e9 des march\u00e9s financiers<\/em><\/strong><br><\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p><strong><em>Twitter&nbsp;est toujours une source d\u2019instabilit\u00e9 des march\u00e9s financiers<\/em><\/strong><\/p>\n\n\n\n<p>Ce n\u2019est une nouveaut\u00e9 pour personne, les r\u00e9seaux sociaux constituent pour beaucoup une source d\u2019information qui vient s\u2019ajouter aux sources traditionnelles. Facebook, Twitter, Instagram, LinkedIn, Whatsapp, TikTok, Reddit sont tous devenus des sources d\u2019information. Si ces derniers peuvent \u00eatre l\u2019origine d\u2019un <em>bad buzz<\/em>, ils repr\u00e9sentent aussi des plateformes d\u2019interaction pouvant provoquer une \u00e9tincelle. Les \u00ab\u00a0Printemps arabes\u00a0\u00bb ont d\u2019abord \u00e9t\u00e9 un ph\u00e9nom\u00e8ne en ligne, o\u00f9 le d\u00e9sir de changement politique a enfl<ins>\u00e9<\/ins> jusqu\u2019\u00e0 provoquer des manifestations croissantes et le renversement du pouvoir IRL (I<em>n Real Life<\/em>). Plus r\u00e9cemment, les manifestations en Iran et la guerre en Ukraine b\u00e9n\u00e9ficient d\u2019une v\u00e9ritable mise en sc\u00e8ne sur les r\u00e9seaux sociaux et en ligne.<\/p>\n\n\n\n<p>L\u2019influence des r\u00e9seaux sociaux s\u2019\u00e9tend bien entendu au secteur financier, depuis 2011 le petit oiseau bleu est incrust\u00e9 sur les terminaux Bloomberg. Un simple tweet peut faire fluctuer les march\u00e9s financiers de fa\u00e7on potentiellement irr\u00e9versible. De nombreuses entreprises ont malheureusement \u00e9t\u00e9 victimes du ph\u00e9nom\u00e8ne. Nous vous proposons de faire un point sur le sujet.<\/p>\n\n\n\n<p><strong><em>L\u2019influence des personnalit\u00e9s publiques :<\/em><\/strong>&nbsp;<\/p>\n\n\n\n<p>Les personnalit\u00e9s publiques ont un grand pouvoir d\u2019influence au sein de leur communaut\u00e9. Barack Obama, par exemple, est suivi par 130 millions de followers, Elon Musk 107 millions et Donald Trump a gagn\u00e9 86,4 millions de followers en moins de 24 heures apr\u00e8s la r\u00e9activation de son compte. Cette influence peut donc aussi toucher les march\u00e9s financiers.<\/p>\n\n\n\n<p>La marque JP Morgan a cr\u00e9\u00e9 un indicateur sp\u00e9cifique pour mesure l\u2019impact des tweets de Donald Trump sur les march\u00e9s financiers&nbsp;nomm\u00e9 \u00ab&nbsp;Volfefe&nbsp;\u00bb en r\u00e9f\u00e9rence au tweet \u00e9nigmatique de l\u2019ancien pr\u00e9sident, \u00ab&nbsp;covfefe&nbsp;\u00bb. Donald Trump a d\u2019ailleurs \u00e9t\u00e9 \u00e0 l\u2019origine de multiples variations des cours de bourse.<\/p>\n\n\n\n<p>L\u2019une de ses victimes&nbsp;: Lockheed Martin, industriel de l\u2019armement, a souffert d\u2019une chute de 5% de leur action apr\u00e8s un tweet de Donald Trump.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"896\" height=\"462\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174237.png\" alt=\"\" class=\"wp-image-3611\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174237.png 896w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174237-300x155.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174237-768x396.png 768w\" sizes=\"auto, (max-width: 896px) 100vw, 896px\" \/><\/figure>\n\n\n\n<p>Autre exemple Kylie Jenner a partag\u00e9 un message sur Twitter concernant Snapchat. La valeur du r\u00e9seau social a perdu 1,3 milliard de dollars de capitalisation boursi\u00e8re. L\u2019influence a ensuite rappel\u00e9 son amour pour Snapchat et l\u2019action de l\u2019entreprise est remont\u00e9e.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"976\" height=\"520\" data-id=\"3613\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174314.png\" alt=\"\" class=\"wp-image-3613\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174314.png 976w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174314-300x160.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174314-768x409.png 768w\" sizes=\"auto, (max-width: 976px) 100vw, 976px\" \/><\/figure>\n<\/figure>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"593\" data-id=\"3615\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174334-1024x593.png\" alt=\"\" class=\"wp-image-3615\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174334-1024x593.png 1024w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174334-300x174.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174334-768x445.png 768w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174334.png 1070w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<p>L\u2019actuel patron de Twitter lui-m\u00eame, Elon Musk, est devenu un professionnel de la variation des march\u00e9s financiers en raison de ces tweets provocateurs. C\u2019est l\u2019exemple de Etsy qui a ouvert 18% plus haut qu\u2019au moment de la fermeture de Wall Street \u00e0 cause d\u2019un tweet d\u2019Elon Musk.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"530\" data-id=\"3617\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174400-1024x530.png\" alt=\"\" class=\"wp-image-3617\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174400-1024x530.png 1024w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174400-300x155.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174400-768x397.png 768w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174400.png 1028w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<p>En 2021, Elon Musk incitait ses followers \u00e0 utiliser l\u2019application de messagerie Signal. En quelques minutes le cours de son action avait pris 1000%. Seul probl\u00e8me\u00a0: la soci\u00e9t\u00e9 concern\u00e9e par la hausse \u00e9tait en r\u00e9alit\u00e9 Signal Advance, une entreprise du Texas qui a vu sa valeur multipli\u00e9e par 12 subitement.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"448\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174426-1024x448.png\" alt=\"\" class=\"wp-image-3619\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174426-1024x448.png 1024w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174426-300x131.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174426-768x336.png 768w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174426.png 1034w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Elon Musk a aussi fait du yoyo avec son entreprise automobile, Tesla. En mai 2020, il \u00e9crit un tweet o\u00f9 il trouve que le cours de l\u2019action Tesla est trop \u00e9lev\u00e9. L\u2019action plonge de 10,3% \u00e0 Wall Street et des milliards de capitalisation partent en fum\u00e9e. Depuis cet \u00e9v\u00e8nement, Elon Musk a l\u2019obligation de faire approuver ses tweets par les avocats de son entreprise avant de les publier car ce coup de th\u00e9\u00e2tre a valu \u00e0 l\u2019entreprise une enqu\u00eate de la Securities and Exchange Commission (SEC).<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"438\" data-id=\"3621\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174445-1024x438.png\" alt=\"\" class=\"wp-image-3621\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174445-1024x438.png 1024w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174445-300x128.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174445-768x329.png 768w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174445.png 1028w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<p>Nicolas Vanderbiest, Directeur des op\u00e9rations chez Saper Vedere, agence sp\u00e9cialis\u00e9e dans l\u2019audit d\u2019audience et les strat\u00e9gies d\u2019influence, explique que tous les m\u00e9tiers sont repr\u00e9sent\u00e9s sur les r\u00e9seaux sociaux et cela particuli\u00e8rement sur Twitter. La bourse et Twitter suivent tous deux un ph\u00e9nom\u00e8ne d\u2019instantan\u00e9it\u00e9. Ainsi, se sont d\u00e9velopp\u00e9 des structures qui font le monitoring de Twitter afin de vendre ou racheter des actions en fonction de ce qui parait sur Twitter.<\/p>\n\n\n\n<p><strong><em>Le r\u00f4le des fraudeurs dans la manipulation financi\u00e8re&nbsp;:<\/em><\/strong><\/p>\n\n\n\n<p>Le ph\u00e9nom\u00e8ne de <em>pump-and-dump<\/em> provoque \u00e9galement de fortes fluctuations sur les march\u00e9s financiers \u00e0 l\u2019aide de la manipulation de l\u2019information \u00e0 travers Twitter. Cette pratique qui existe depuis des d\u00e9cennies a explos\u00e9 avec l\u2019apparition des r\u00e9seaux sociaux. Elle consiste \u00e0 gonfler artificiellement le prix de l\u2019action d\u2019une entreprise avec de fausses informations. Une fois que le prix est assez haut, les fraudeurs vendent leurs parts et le cours de l\u2019action chute. L\u2019anonymit\u00e9 des r\u00e9seaux sociaux et la facilit\u00e9 \u00e0 <a>cr\u00e9er<\/a><a href=\"#_msocom_1\">[ML1]<\/a>&nbsp; de faux comptes rendent cette pratique largement accessible.<\/p>\n\n\n\n<p>En novembre, Elon Musk avait rendu les certifications sur Twitter payantes pour un montant de 8$ par mois sans v\u00e9rification des donn\u00e9es. Un usurpateur a pu alors se faire passer pour le premier fabricant d\u2019insuline au monde, Eli Lilly, sur Twitter, et annoncer sa gratuit\u00e9, provoquant l\u2019effondrement des actions de la firme.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-6 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"409\" data-id=\"3623\" src=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174523-1024x409.png\" alt=\"\" class=\"wp-image-3623\" srcset=\"https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174523-1024x409.png 1024w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174523-300x120.png 300w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174523-768x307.png 768w, https:\/\/www.eha-consulting.com\/wp-content\/uploads\/2022\/12\/capture-decran-2022-12-15-a-174523.png 1096w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<p>Sans cette modification de certification, cette usurpation n\u2019aurait pas eu autant d\u2019influence car le faux compte n\u2019aurait pas \u00e9t\u00e9 certifi\u00e9 et donc moins cr\u00e9dible. Gr\u00e2ce \u00e0 cette nouvelle r\u00e8gle de Twitter, les usurpateurs ont pu se faire passer pour Eli Lilly de fa\u00e7on cr\u00e9dible. La rumeur a donc pris des proportions gigantesques et l\u2019entreprise a perdu 16 milliards de dollars en une journ\u00e9e.<\/p>\n\n\n\n<p>Malgr\u00e9 le<ins> <\/ins>d\u00e9menti publi\u00e9 par l\u2019entreprise, l\u2019action en bourse n\u2019est jamais remont\u00e9e \u00e0 l\u2019\u00e9quilibre. \u00ab&nbsp;<em>C\u2019est in\u00e9dit&nbsp;\u00bb<\/em> dit Nicolas Vanderbiest, dans un sc\u00e9nario de fluctuation des march\u00e9s provenant d\u2019informations de Twitter. Il explique que ce tweet a notamment eu pour effet de remettre le sujet d\u2019une l\u00e9gislation sur le prix de l\u2019insuline sur la table. Cela explique que le cours de l\u2019action ne soit pas remont\u00e9 \u00e0 l\u2019\u00e9quilibre.<\/p>\n\n\n\n<p>La derni\u00e8re question \u00e9pineuse pour Twitter concerne les \u00e9lections politiques. La plateforme est soumise \u00e0 des op\u00e9rations de d\u00e9sinformation par des bots pour influencer les r\u00e9sultats des \u00e9lections politiques, comme on a pu le voir lors des \u00e9lections am\u00e9ricaines de 2016 (<em>voir notre article sur l\u2019astroturfing<\/em>). L\u2019enjeu de la certification selon Nicolas Vanderbiest est donc celui de la v\u00e9rification d\u2019identit\u00e9\u00a0: \u00ab\u00a0<em>il faut diff\u00e9rencier les vrais utilisateurs des bots\u00a0\u00bb<\/em>.<\/p>\n\n\n\n<p>L\u2019erreur d\u2019Elon Musk dans cette d\u00e9cision, c\u2019est de ne pas avoir fait valider l\u2019identit\u00e9 pour obtenir la certification \u00e0 8$. Si le compte advenait \u00e0 utiliser un autre nom alors cela aurait d\u00fb faire perdre la certification. \u00ab\u00a0<em>Bien qu\u2019Elon Musk ait parfaitement compris les enjeux de Twitter ainsi que ces forces, il n\u2019a rien appris des erreurs d\u2019il y a quelques ann\u00e9es sur le processus de validation de l\u2019identit\u00e9\u00a0\u00bb <\/em>dit-il.<em> <\/em>Pour autant, ces erreurs et leurs cons\u00e9quences ne sont pas de nature \u00e0 modifier l\u2019appr\u00e9hension de la plateforme, notamment parce qu\u2019aucune autre plateforme d\u2019\u00e9change de ce type (comme <a href=\"https:\/\/mastodon.social\/explore\" target=\"_blank\" rel=\"noreferrer noopener\">Mastodon<\/a>) n\u2019est \u00e0 la hauteur aujourd\u2019hui.\u00a0<\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong><em>Le mot de l\u2019expert&nbsp;:<\/em><\/strong><\/p>\n\n\n\n<p>\u00ab\u00a0Twitter est un r\u00e9seau social qui est toujours tourn\u00e9 vers l\u2019avant. La question n\u2019est pas de s\u2019inqui\u00e9ter de l\u2019image de la r\u00e9alit\u00e9 montr\u00e9e par Twitter mais de comprendre comment la plateforme produit son influence. \u00bb &#8211; Nicolas Vanderbiest<\/p>\n\n\n\n<p>Nicolas Vanderbiest est directeur des op\u00e9rations chez Saper Vedere, agence sp\u00e9cialis\u00e9e dans l\u2019audit d\u2019audience et les strat\u00e9gies d\u2019influences. \u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Twitter&nbsp;est toujours une source d\u2019instabilit\u00e9 des march\u00e9s financiers Ce n\u2019est une nouveaut\u00e9 pour personne, les r\u00e9seaux sociaux constituent pour beaucoup une source d\u2019information qui vient s\u2019ajouter aux sources traditionnelles. Facebook, Twitter, Instagram, LinkedIn, Whatsapp, TikTok, Reddit sont tous devenus des sources d\u2019information. Si ces derniers peuvent \u00eatre l\u2019origine d\u2019un bad buzz, ils repr\u00e9sentent aussi des [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3608","post","type-post","status-publish","format-standard","hentry","category-articles"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Twitter et les march\u00e9s financiers, plus de 10 ans d\u2019influence\ufffc - E&amp;HA<\/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.eha-consulting.com\/twitter-et-les-marches-financiers-plus-de-10-ans-dinfluence\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Twitter et les march\u00e9s financiers, plus de 10 ans d\u2019influence\ufffc - E&amp;HA\" \/>\n<meta property=\"og:description\" content=\"Twitter&nbsp;est toujours une source d\u2019instabilit\u00e9 des march\u00e9s financiers Ce n\u2019est une nouveaut\u00e9 pour personne, les r\u00e9seaux sociaux constituent pour beaucoup une source d\u2019information qui vient s\u2019ajouter aux sources traditionnelles. Facebook, Twitter, Instagram, LinkedIn, Whatsapp, TikTok, Reddit sont tous devenus des sources d\u2019information. 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