{"id":33076,"date":"2026-05-17T19:00:00","date_gmt":"2026-05-17T19:00:00","guid":{"rendered":"https:\/\/volity.io\/blog\/crypto-wash-trading-2\/"},"modified":"2026-05-19T08:55:08","modified_gmt":"2026-05-19T08:55:08","slug":"crypto-wash-trading","status":"publish","type":"post","link":"https:\/\/volity.io\/fr\/crypto\/crypto-wash-trading\/","title":{"rendered":"Wash trading crypto : ce que c&rsquo;est, comment le rep\u00e9rer, en quoi Volity est diff\u00e9rent"},"content":{"rendered":"<p>Le wash trading crypto, c&rsquo;est lorsqu&rsquo;un trader (ou une bourse) ach\u00e8te et vend le m\u00eame actif \u00e0 lui-m\u00eame, ce qui gonfle le volume publi\u00e9 sans modifier la propri\u00e9t\u00e9 r\u00e9elle. En crypto, le wash trading fausse les classements des bourses, induit les traders particuliers en erreur sur la <a href=\"https:\/\/volity.io\/fr\/crypto\/crypto-trading-liquidity\/\">Liquidit\u00e9 et volume du trading crypto : comment ils affectent vos ex\u00e9cutions<\/a> et nuit \u00e0 l&rsquo;int\u00e9grit\u00e9 du march\u00e9. Cette page explique la m\u00e9canique, les m\u00e9thodes de v\u00e9rification rapide et la diff\u00e9rence structurelle du mod\u00e8le courtier de Volity.<\/p>\n\n<h3>Pourquoi le wash trading existe en crypto<\/h3>\n\n<p>Trois incitations alimentent le wash trading :<\/p>\n\n<p><strong>1. Concurrence pour le classement des bourses.<\/strong> Les sites de classement de pi\u00e8ces (CoinMarketCap, CoinGecko historiquement) classaient les bourses par volume publi\u00e9. Plus le rang est \u00e9lev\u00e9, plus d&rsquo;inscriptions retail, plus de revenus. Gonfler le volume augmentait directement les revenus de la bourse.<\/p>\n\n<p><strong>2. Exigences de listing pour nouveaux coins.<\/strong> Les projets de tokens paient pour les listings sur les bourses. Certaines bourses exigent un volume de trading minimal pour conserver un listing. Le wash trading par le projet (ou par la bourse elle-m\u00eame) maintient le chiffre de volume au-dessus du seuil.<\/p>\n\n<p><strong>3. Incitations des market makers.<\/strong> Certaines bourses r\u00e9compensent les market makers par des rabais en fonction du volume. Le self-trading pour capturer ces rabais est une forme de wash trading.<\/p>\n\n<p>Les courtiers r\u00e9gul\u00e9s comme Volity n&rsquo;ont aucune de ces incitations. Volity ne se classe pas par volume, ne liste pas de nouveaux coins par promotion payante, et n&rsquo;exploite pas de programme de rabais market maker qui r\u00e9compenserait le self-trading.<\/p>\n\n<h3>Comment rep\u00e9rer le wash trading<\/h3>\n\n<p>Cinq m\u00e9thodes de v\u00e9rification rapide :<\/p>\n\n<p><strong>1. Ratio volume \/ capitalisation de march\u00e9.<\/strong> Une pi\u00e8ce avec 100 M$ de capitalisation ne devrait pas afficher 5 Md$ de volume quotidien. La rotation spot r\u00e9aliste est de 0,5 \u00e0 5 % de la capitalisation par jour pour les grands coins, plus bas pour les coins de queue. Les valeurs aberrantes signalent du wash.<\/p>\n\n<p><strong>2. Regroupement des tailles de trade.<\/strong> Les wash trades utilisent souvent des tailles identiques ou quasi identiques (par exemple, toujours 0,1 BTC). Le trading retail r\u00e9el produit une distribution de Pareto des tailles de trade. Un histogramme montrant une ou deux tailles dominantes est suspect.<\/p>\n\n<p><strong>3. D\u00e9calage spread bid-ask vs volume.<\/strong> Une paire affichant un volume \u00e9lev\u00e9 mais des spreads larges est incoh\u00e9rente. Un volume r\u00e9el resserre les spreads gr\u00e2ce \u00e0 la concurrence des market makers.<\/p>\n\n<p><strong>4. Arbitrage de prix inter-bourses inexistant.<\/strong> Si les wash trades g\u00e9n\u00e8rent du volume mais pas d&rsquo;activit\u00e9 r\u00e9elle, les prix sur la bourse \u00ab\u00a0wash\u00e9e\u00a0\u00bb devraient d\u00e9river des prix sur les bourses \u00e0 volume r\u00e9el. Comparer \u00e0 un prix de r\u00e9f\u00e9rence (comme l&rsquo;indice CoinMarketCap ou Kaiko) fait appara\u00eetre la d\u00e9rive.<\/p>\n\n<p><strong>5. Notations ind\u00e9pendantes de places.<\/strong> Des sites comme CER.live, Nomics et Messari classent les bourses par volume ajust\u00e9 \u00e0 la liquidit\u00e9, qui filtre les wash trades suspects. L&rsquo;\u00e9cart entre volume publi\u00e9 et volume not\u00e9 est l&rsquo;estimation du wash.<\/p>\n\n<h3>Estimations historiques notables<\/h3>\n\n<p>Bitwise Asset Management a d\u00e9pos\u00e9 une \u00e9tude aupr\u00e8s de la SEC en 2019 estimant que 95 % du volume Bitcoin publi\u00e9 sur les petites bourses relevait du wash. Des \u00e9tudes ult\u00e9rieures de CER.live et de l&rsquo;enqu\u00eate \u00ab\u00a0real volume\u00a0\u00bb de Forbes ont trouv\u00e9 30 \u00e0 70 % d&rsquo;inflation sur diverses places sur diff\u00e9rentes p\u00e9riodes. Le pourcentage exact varie ; la conclusion directionnelle est constante : le volume publi\u00e9 sur\u00e9value l&rsquo;activit\u00e9 r\u00e9elle.<\/p>\n\n<h3>Pourquoi le wash trading vous nuit en tant que trader<\/h3>\n\n<p>Trois pr\u00e9judices directs :<\/p>\n\n<p><strong>1. Faux signaux de liquidit\u00e9.<\/strong> Une pi\u00e8ce qui semble liquide (volume publi\u00e9 \u00e9lev\u00e9) mais qui est r\u00e9ellement fine (5 000 $ de profondeur en haut de carnet) est un pi\u00e8ge \u00e0 slippage. Placez un ordre au march\u00e9 de 20 000 $ et vous remplissez sur de nombreux niveaux \u00e0 des prix progressivement plus mauvais.<\/p>\n\n<p><strong>2. Faux signaux de popularit\u00e9.<\/strong> Les coins promus comme \u00ab\u00a0\u00e0 fort volume\u00a0\u00bb attirent les acheteurs retail. Si le volume est du wash, l&rsquo;achat est une demande r\u00e9elle unilat\u00e9rale face \u00e0 une offre fictive, ce qui peut pousser les prix \u00e0 la hausse de fa\u00e7on insoutenable avant un retour \u00e0 la moyenne.<\/p>\n\n<p><strong>3. Mauvaise allocation du capital.<\/strong> Le wash trading au niveau projet par les \u00e9metteurs de tokens trompe les investisseurs particuliers sur l&rsquo;adoption r\u00e9elle. Des fonds qui devraient affluer vers des projets r\u00e9els affluent vers des projets gonfl\u00e9s par le wash.<\/p>\n\n<h3>Pourquoi le mod\u00e8le de Volity \u00e9vite structurellement le probl\u00e8me du wash<\/h3>\n\n<p>Volity est un courtier r\u00e9gul\u00e9, pas une bourse qui gagne par du volume auto-list\u00e9. Trois protections structurelles :<\/p>\n\n<p><strong>1. Pas de concurrence de classement entre bourses.<\/strong> Volity ne se pr\u00e9sente pas comme \u00ab\u00a0la place crypto au volume le plus \u00e9lev\u00e9\u00a0\u00bb. Le wash trading ne b\u00e9n\u00e9ficierait pas au mod\u00e8le de revenus de Volity.<\/p>\n\n<p><strong>2. Pas de frais de listing de projets.<\/strong> Volity n&rsquo;accepte pas de paiements de projets de tokens pour lister de nouveaux coins. Les plus de 20 paires crypto sont choisies pour la qualit\u00e9 de leur liquidit\u00e9, pas pour des revenus promotionnels.<\/p>\n\n<p><strong>3. R\u00e9gulation CySEC.<\/strong> L&rsquo;entit\u00e9 op\u00e9rationnelle de Volity (UBK Markets, CySEC 186\/12) est soumise \u00e0 une surveillance des abus de march\u00e9, y compris le wash trading. Les courtiers r\u00e9gul\u00e9s font face \u00e0 une responsabilit\u00e9 l\u00e9gale directe pour la facilitation du wash ; les bourses offshore, \u00e0 aucune.<\/p>\n\n<p>R\u00e9sultat : quand vous tradez BTCUSD sur Volity, le prix refl\u00e8te une liquidit\u00e9 agr\u00e9g\u00e9e de march\u00e9 r\u00e9elle, pas un volume auto-gonfl\u00e9 par Volity.<\/p>\n\n<h3>Que faire en tant que trader particulier<\/h3>\n\n<p>Trois habitudes pratiques :<\/p>\n\n<p><strong>1. Tradez l\u00e0 o\u00f9 la r\u00e9gulation cr\u00e9e de la responsabilit\u00e9.<\/strong> Les courtiers r\u00e9gul\u00e9s font face \u00e0 une responsabilit\u00e9 l\u00e9gale pour abus de march\u00e9. Les bourses offshore font face \u00e0 une surveillance externe minimale. Le probl\u00e8me du wash trading se concentre du c\u00f4t\u00e9 offshore.<\/p>\n\n<p><strong>2. V\u00e9rifiez la liquidit\u00e9, pas seulement le volume.<\/strong> V\u00e9rifiez directement la profondeur du carnet d&rsquo;ordres. Placez de petits ordres tests pour observer la qualit\u00e9 r\u00e9elle d&rsquo;ex\u00e9cution. Comparez les spreads \u00e0 d&rsquo;autres places r\u00e9put\u00e9es.<\/p>\n\n<p><strong>3. Soyez sceptique face aux affirmations \u00ab\u00a0forte volume\u00a0\u00bb d&rsquo;altcoins.<\/strong> Les coins fortement class\u00e9s par volume sur de petites bourses ont souvent des chiffres gonfl\u00e9s par le wash. Si le volume para\u00eet trop \u00e9lev\u00e9 par rapport \u00e0 la capitalisation, c&rsquo;est g\u00e9n\u00e9ralement le cas.<\/p>\n\n<h3>Wash trading vs market making (deux choses diff\u00e9rentes)<\/h3>\n\n<p>Le wash trading et le market making l\u00e9gitime sont diff\u00e9rents :<\/p>\n\n<ul><li><strong>Market making :<\/strong> fournir des cotations continues \u00e0 l&rsquo;achat et \u00e0 la vente pour faciliter le trading. G\u00e9n\u00e8re du volume r\u00e9el \u00e0 partir de participants r\u00e9els. Gagne gr\u00e2ce au spread<\/li><li><strong>Wash trading :<\/strong> acheter et vendre \u00e0 soi-m\u00eame sans participant r\u00e9el. Gonfle le volume publi\u00e9. Gagne gr\u00e2ce aux rabais ou au rang dans les classements<\/li><\/ul>\n\n<p>Les fournisseurs de liquidit\u00e9 de Volity sont de vrais market makers, pas des wash traders. Les co\u00fbts de spread refl\u00e8tent une r\u00e9mun\u00e9ration r\u00e9elle de market making, pas une activit\u00e9 artificielle.<\/p>\n\n<h2>Points cl\u00e9s \u00e0 retenir<\/h2>\n<p>Le wash trading crypto reste l&rsquo;un des plus grands risques cach\u00e9s du march\u00e9 crypto retail. Le taux exact d&rsquo;activit\u00e9 de wash trading crypto varie selon les places et dans le temps, mais plusieurs \u00e9tudes ind\u00e9pendantes (Bitwise, CER.live, Messari) confirment que 30 \u00e0 95 % du volume publi\u00e9 sur les petites bourses pr\u00e9sentent des caract\u00e9ristiques de wash trading crypto.<\/p>\n\n<p>Pour les traders particuliers, trois habitudes r\u00e9duisent l&rsquo;exposition au risque de wash trading crypto :<\/p>\n\n<ul><li>V\u00e9rifier les spreads et la profondeur du carnet d&rsquo;ordres, pas uniquement le volume affich\u00e9<\/li><li>Trader sur des plateformes r\u00e9gul\u00e9es o\u00f9 l&rsquo;activit\u00e9 de wash trading crypto engage une responsabilit\u00e9 l\u00e9gale directe<\/li><li>Utiliser des m\u00e9triques de volume ajust\u00e9es \u00e0 la liquidit\u00e9 provenant de sources ind\u00e9pendantes (CER.live, Nomics) plut\u00f4t que les chiffres autoproclam\u00e9s des bourses<\/li><\/ul>\n\n<p>Le mod\u00e8le courtier de Volity \u00e9vite structurellement les incitations qui alimentent le wash trading crypto sur les bourses qui se classent elles-m\u00eames.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Questions fr\u00e9quentes<\/h2>\n    \n    <div class=\"faq-accordion\">\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Qu&#039;est-ce que le wash trading crypto ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Le wash trading crypto, c'est quand un trader ou un exchange ach\u00e8te et vend le m\u00eame actif \u00e0 lui-m\u00eame, gonflant le volume rapport\u00e9 sans changer la propri\u00e9t\u00e9 r\u00e9elle. Les motifs courants : course aux classements sur les sites de donn\u00e9es, atteinte des seuils de volume pour de nouveaux listings, et captation de rebates de market making. Cela fausse les donn\u00e9es utilis\u00e9es par les traders retail pour \u00e9valuer venues et paires.                <\/div>\n            <\/div>\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Quelle part du volume crypto est du wash trading ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Les estimations varient. Le dossier Bitwise de 2019 \u00e0 la SEC estimait que 95 % du volume Bitcoin rapport\u00e9 sur les petits exchanges \u00e9tait du wash. Des \u00e9tudes ult\u00e9rieures de CER.live, Messari et Forbes ont trouv\u00e9 30 \u00e0 70 % d'inflation selon les venues et les p\u00e9riodes. Le pourcentage exact bouge dans le temps. La conclusion constante : le volume rapport\u00e9 sur\u00e9value l'activit\u00e9 r\u00e9elle.                <\/div>\n            <\/div>\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Comment savoir si un exchange fait du wash trading ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Cinq v\u00e9rifications : ratio volume\/cap implausible (la rotation spot r\u00e9aliste est de 0,5 \u00e0 5 % de la cap par jour), clustering de trades \u00e0 des tailles identiques au lieu d'une distribution Pareto, \u00e9cart entre volume rapport\u00e9 \u00e9lev\u00e9 et spreads larges, absence d'arbitrage cross-exchange, et \u00e9cart entre volume rapport\u00e9 et volume ajust\u00e9 \u00e0 la liquidit\u00e9 par des sources ind\u00e9pendantes.                <\/div>\n            <\/div>\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Le wash trading est-il l\u00e9gal ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Dans les juridictions r\u00e9gul\u00e9es, non. Le wash trading est une forme de manipulation de march\u00e9 au regard de la plupart des lois sur les valeurs mobili\u00e8res et les commodities. La CFTC et la SEC ont poursuivi des cas sur les futures et actions r\u00e9gul\u00e9s. Les venues crypto offshore subissent moins d'application directe, ce qui explique la plus grande visibilit\u00e9 de la pratique. Les venues sous MiCA font face \u00e0 l'oversight UE.                <\/div>\n            <\/div>\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Volity fait-il du wash trading ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Non. Volity est un courtier CFD r\u00e9gul\u00e9 sous CySEC 186\/12 via UBK Markets. Le mod\u00e8le \u00e9conomique n'a pas d'incitation au wash : pas de course aux classements d'exchange, pas de listings pay\u00e9s, pas de chasse aux rebates de market maker. Le r\u00e9gulateur surveille les abus de march\u00e9, et les trades sur Volity refl\u00e8tent une d\u00e9couverte de prix r\u00e9elle face \u00e0 la liquidit\u00e9 agr\u00e9g\u00e9e de sources tier-1.                <\/div>\n            <\/div>\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Pourquoi le wash trading nuit-il aux traders retail ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Trois nuisances directes : des signaux de liquidit\u00e9 fauss\u00e9s pi\u00e8gent les traders dans du slippage sur des paires apparemment liquides (le top du carnet peut ne tenir que 5 000 USD face \u00e0 un volume titul\u00e9 gonfl\u00e9), des signaux de popularit\u00e9 fauss\u00e9s attirent une demande unilat\u00e9rale qui revient \u00e0 la moyenne, et les flux de capitaux vont vers des projets gonfl\u00e9s au wash plut\u00f4t que vers de vrais projets. Le pr\u00e9judice s'accumule sur l'ensemble du retail crypto.                <\/div>\n            <\/div>\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Quelle est la diff\u00e9rence entre wash trading et market making ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Le market making fournit des cotations bid et ask continues pour faciliter le trading entre participants r\u00e9els et se r\u00e9mun\u00e8re sur le spread. Le wash trading ach\u00e8te et vend \u00e0 soi-m\u00eame sans contrepartie r\u00e9elle et se r\u00e9mun\u00e8re via rebates ou positionnement au classement. Les deux se ressemblent dans les donn\u00e9es de volume mais diff\u00e8rent dans la substance \u00e9conomique. Les fournisseurs de liquidit\u00e9 de Volity sont de vrais market makers.                <\/div>\n            <\/div>\n                    <div class=\"faq-card\">\n                <div class=\"faq-question\">\n                    <span>Comment les traders retail peuvent-ils r\u00e9duire leur exposition au wash trading ?<\/span>\n                    <span class=\"faq-arrow\">&#9662;<\/span>\n                <\/div>\n                <div class=\"faq-answer\">\n                    Trois habitudes : tradez l\u00e0 o\u00f9 la r\u00e9gulation cr\u00e9e de la responsabilit\u00e9 (les courtiers r\u00e9gul\u00e9s font face \u00e0 une responsabilit\u00e9 l\u00e9gale en cas de facilitation de wash, les exchanges offshore font face \u00e0 peu d'oversight) ; v\u00e9rifiez la liquidit\u00e9 par la profondeur r\u00e9elle du carnet et de petits ordres tests, pas par le volume titul\u00e9 ; traitez avec prudence les claims de 'gros volume' sur des altcoins de petits exchanges, surtout quand le volume para\u00eet \u00e9lev\u00e9 par rapport \u00e0 la cap.                <\/div>\n            <\/div>\n            <\/div>\n    <style>\n    .faq-accordion {\n        max-width: 800px;\n        margin: auto;\n        display: flex;\n        flex-direction: column;\n        gap: 10px;\n    }\n    .faq-card {\n        background: #fff;\n        border-radius: 8px;\n        border: 1px solid #ddd;\n        overflow: hidden;\n        box-shadow: 0 2px 6px rgba(0,0,0,0.05);\n        transition: box-shadow 0.3s ease;\n    }\n    .faq-question {\n        padding: 15px 20px;\n        font-weight: bold;\n        font-size: 1rem;\n        cursor: pointer;\n        display: flex;\n        justify-content: space-between;\n        align-items: center;\n        background: #f8f9fa;\n        transition: background 0.3s ease;\n    }\n    .faq-card:hover .faq-question {\n        background: #f1f3f5;\n    }\n    \n    \/* DEFAULT STATE - ANSWERS VISIBLE *\/\n    .faq-answer {\n        display: block !important;\n        padding: 15px 20px;\n        border-top: 1px solid #eee;\n        color: #444;\n        background: #fff;\n        animation: fadeIn 0.3s ease-in-out;\n        max-height: 1000px;\n        overflow: visible;\n        transition: max-height 0.3s ease, opacity 0.3s ease;\n        opacity: 1 !important;\n    }\n    \n    \/* HIDDEN STATE - When .active class is toggled *\/\n    .faq-card.active .faq-answer {\n        display: none !important;\n        max-height: 0;\n        opacity: 0 !important;\n        padding: 0 20px;\n    }\n    \n    \/* ARROW LOGIC *\/\n    .faq-arrow {\n        font-size: 1.2rem;\n        transition: transform 0.3s ease;\n        transform: rotate(0deg);\n    }\n    \n    .faq-card.active .faq-arrow {\n        transform: rotate(180deg);\n    }\n    \n    @keyframes fadeIn {\n        from { opacity: 0; transform: translateY(-5px); }\n        to { opacity: 1; transform: translateY(0); }\n    }\n    <\/style>\n    <script>\n    document.addEventListener(\"DOMContentLoaded\", function () {\n        document.querySelectorAll(\".faq-question\").forEach(function (question) {\n            question.addEventListener(\"click\", function () {\n                const card = this.parentElement;\n                card.classList.toggle(\"active\");\n            });\n        });\n    });\n    <\/script>\n    \n<h2>Sources<\/h2>\n<ul><li><a href=\"https:\/\/static.bitwiseinvestments.com\/Research\/Bitwise-Asset-Management-Presentation-to-the-US-Securities-and-Exchange-Commission.pdf\">D\u00e9p\u00f4t Bitwise \u00e0 la SEC sur le volume Bitcoin<\/a><\/li><li><a href=\"https:\/\/cer.live\/\">Volume ajust\u00e9 \u00e0 la liquidit\u00e9 de CER.live<\/a><\/li><\/ul>\n\n\n\n\n<h3 class=\"wp-block-heading\">Guides crypto associ\u00e9s sur Volity<\/h3>\n\n\n\n<p>Plus de contenu trading crypto sur Volity :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/crypto-trading-liquidity\/\">Liquidit\u00e9 et volume du trading crypto : comment ils affectent vos ex\u00e9cutions<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/crypto-perpetual-trading\/\">Trading perp\u00e9tuel crypto : taux de financement, liquidation et l&rsquo;alternative CFD<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/crypto-options-trading-explained\/\">Trading d&rsquo;options crypto expliqu\u00e9 : calls, puts et comment Volity traite les d\u00e9riv\u00e9s<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/crypto-futures-trading\/\">Trading de futures crypto : ce que c&rsquo;est, comment les CFD se comparent sur Volity<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/short-term-crypto-trading\/\">Trading crypto court terme : strat\u00e9gies pour l&rsquo;horizon 1 heure \u00e0 30 jours<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/is-crypto-trading-legal\/\">Le trading crypto est-il l\u00e9gal ? Panorama pays par pays pour 2026<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/is-crypto-trading-profitable\/\">Le trading crypto est-il rentable ? Un regard honn\u00eate sur les donn\u00e9es<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/crypto-trading-fees\/\">Frais de trading crypto sur Volity : spreads, commissions et wallet \u00e0 0<\/a><\/li>\n<li><a href=\"https:\/\/volity.io\/fr\/crypto\/crypto-trading-bot\/\">Bot de trading crypto : les trois styles, leur fonctionnement, leur utilisation sur Volity<\/a><\/li>\n<\/ul>\n\n<h2>Questions fr\u00e9quentes<\/h2>\n<div class=\"volity-faq\">\n<details class=\"volity-faq-item\"><summary>Qu&rsquo;est-ce que le wash trading crypto ?<\/summary>\n<p>Le wash trading crypto, c&rsquo;est lorsqu&rsquo;un trader ou une bourse ach\u00e8te et vend le m\u00eame actif \u00e0 lui-m\u00eame, gonflant le volume publi\u00e9 sans modifier la propri\u00e9t\u00e9 r\u00e9elle. Le motif est g\u00e9n\u00e9ralement la concurrence de classement entre bourses, les exigences de listing de nouveaux coins ou la capture de rabais de market makers. Cela fausse les donn\u00e9es utilis\u00e9es par les traders particuliers pour \u00e9valuer les places.<\/p>\n<\/details>\n<details class=\"volity-faq-item\"><summary>Quelle part du volume de trading crypto est du wash trading ?<\/summary>\n<p>Les estimations varient largement. Le d\u00e9p\u00f4t de Bitwise \u00e0 la SEC en 2019 estimait 95 % sur les petites bourses. Des \u00e9tudes ult\u00e9rieures de CER.live et d&rsquo;autres ont trouv\u00e9 30 \u00e0 70 % d&rsquo;inflation sur diverses places et diff\u00e9rentes p\u00e9riodes. Le pourcentage exact bouge dans le temps ; la conclusion constante est que le volume publi\u00e9 sur\u00e9value l&rsquo;activit\u00e9 r\u00e9elle.<\/p>\n<\/details>\n<details class=\"volity-faq-item\"><summary>Comment savoir si une bourse pratique le wash trading ?<\/summary>\n<p>Cinq v\u00e9rifications rapides : ratio volume \/ capitalisation invraisemblablement \u00e9lev\u00e9, regroupement des tailles de trade sur des tailles identiques, d\u00e9calage entre volume \u00e9lev\u00e9 et spreads larges, absence d&rsquo;arbitrage de prix inter-bourses, et \u00e9cart entre volume publi\u00e9 et volume ajust\u00e9 \u00e0 la liquidit\u00e9 (depuis des sites comme CER.live).<\/p>\n<\/details>\n<details class=\"volity-faq-item\"><summary>Le wash trading est-il l\u00e9gal ?<\/summary>\n<p>Dans les juridictions r\u00e9gul\u00e9es : non. Le wash trading est une forme de manipulation de march\u00e9 selon la plupart des lois sur les valeurs mobili\u00e8res et les mati\u00e8res premi\u00e8res. La CFTC et la SEC ont poursuivi des affaires de wash trading sur les futures r\u00e9gul\u00e9s et les actions. Les places crypto offshore font face \u00e0 moins d&rsquo;application directe, ce qui explique que la pratique y soit plus visible.<\/p>\n<\/details>\n<details class=\"volity-faq-item\"><summary>Volity pratique-t-il le wash trading ?<\/summary>\n<p>Non. Volity est un courtier <a href=\"https:\/\/volity.io\/fr\/marches\/cfd-trading-platform\/\">CFD<\/a> r\u00e9gul\u00e9 sous CySEC 186\/12 via UBK Markets. Le mod\u00e8le \u00e9conomique n&rsquo;a aucune incitation au wash (pas de concurrence de classement, pas de frais de listing, pas de jeu de rabais) et le r\u00e9gulateur surveille les abus de march\u00e9. Les trades sur Volity refl\u00e8tent la d\u00e9couverte de prix r\u00e9elle de march\u00e9 face \u00e0 une liquidit\u00e9 agr\u00e9g\u00e9e.<\/p>\n<\/details>\n<details class=\"volity-faq-item\"><summary>Pourquoi le wash trading nuit-il aux traders ?<\/summary>\n<p>Trois pr\u00e9judices : de faux signaux de liquidit\u00e9 pi\u00e8gent les traders particuliers dans du slippage sur des paires apparemment liquides ; de faux signaux de popularit\u00e9 attirent une demande unilat\u00e9rale qui revient ensuite \u00e0 la moyenne ; mauvaise allocation du capital vers des projets gonfl\u00e9s par le wash. Le pr\u00e9judice se cumule \u00e0 travers la base d&rsquo;utilisateurs crypto retail.<\/p>\n<\/details>\n<\/div>\n\n<script type=\"application\/ld+json\">\n{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"Article\", \"headline\": \"Wash trading crypto : ce que c'est, comment le rep\u00e9rer, en quoi le mod\u00e8le de Volity est diff\u00e9rent\", \"author\": {\"@type\": \"Person\", \"@id\": \"https:\/\/volity.io\/alexander-bennett\/\"}}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Qu'est-ce que le wash trading crypto ?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Acheter et vendre \u00e0 soi-m\u00eame pour gonfler le volume sans changer de propri\u00e9taire. 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