{"id":51530,"date":"2026-07-28T12:53:06","date_gmt":"2026-07-28T12:53:06","guid":{"rendered":"https:\/\/www.vtmarkets.com\/fr-eu\/uncategorized\/les-obligations-perpetuelles-de-sk-hynix-chutent-de-20-sur-hyperliquid-alors-que-les-actions-a-seoul-reculent-et-que-le-kospi-seffondre-de-11\/"},"modified":"2026-07-28T12:53:06","modified_gmt":"2026-07-28T12:53:06","slug":"les-obligations-perpetuelles-de-sk-hynix-chutent-de-20-sur-hyperliquid-alors-que-les-actions-a-seoul-reculent-et-que-le-kospi-seffondre-de-11","status":"publish","type":"post","link":"https:\/\/www.vtmarkets.com\/fr-eu\/live-updates\/les-obligations-perpetuelles-de-sk-hynix-chutent-de-20-sur-hyperliquid-alors-que-les-actions-a-seoul-reculent-et-que-le-kospi-seffondre-de-11\/","title":{"rendered":"Les obligations perp\u00e9tuelles de SK Hynix chutent de 20 % sur Hyperliquid, alors que les actions \u00e0 S\u00e9oul reculent et que le Kospi s\u2019effondre de 11 %"},"content":{"rendered":"<p>Les contrats \u00e0 terme perp\u00e9tuels adoss\u00e9s \u00e0 SK Hynix ont connu une dislocation rapide sur Hyperliquid, chutant de 20 % \u00e0 900 $ entre 23h00 UTC et 23h01 UTC avant de repasser au-dessus de 1 000 $ une minute plus tard ; ils s\u2019\u00e9changeaient en dernier lieu \u00e0 1 092 $. Le contrat est libell\u00e9 en USDC, et le mouvement est intervenu avant un repli du titre sous-jacent cot\u00e9 \u00e0 S\u00e9oul.<\/p>\n<p>Environ une heure apr\u00e8s la baisse, le march\u00e9 sud-cor\u00e9en a ouvert en repli et SK Hynix a termin\u00e9 la s\u00e9ance en baisse de 15 % \u00e0 1 550 000 wons (1 762 $), tandis que l\u2019indice Kospi a perdu 11 %. Aux \u00c9tats-Unis, les ADR de SK Hynix \u2014 o\u00f9 10 re\u00e7us correspondent \u00e0 une action ordinaire \u2014 reculaient de 4,5 % en pr\u00e9ouverture \u00e0 136,51 $. SK Hynix a c\u00e9d\u00e9 pr\u00e8s de 48 % depuis son pic du 26 juin \u00e0 1 947 wons. Nvidia, une valeur de r\u00e9f\u00e9rence majeure de la demande finale pour la HBM, a recul\u00e9 de 5 % lundi apr\u00e8s un article du Wall Street Journal \u00e9voquant un \u00e9ventuel filet de s\u00e9curit\u00e9 financier de 250 milliards de dollars li\u00e9 \u00e0 un projet de centre de donn\u00e9es soutenu par OpenAI.<\/p>\n<h3>D\u00e9fis de liquidit\u00e9 et risques de trading sur les produits d\u00e9riv\u00e9s d\u00e9centralis\u00e9s<\/h3>\n<p>Nous assistons \u00e0 une v\u00e9ritable piq\u00fbre de rappel pour les traders de d\u00e9riv\u00e9s : le r\u00e9cent flash crash de 20 % sur Hyperliquid montre \u00e0 quel point la liquidit\u00e9 peut \u00eatre fragile en dehors des heures de march\u00e9. Cette chute soudaine des perp\u00e9tuels SK Hynix juste avant l\u2019ouverture du march\u00e9 cor\u00e9en met en \u00e9vidence le danger de trader des actifs synth\u00e9tiques lorsque les bourses traditionnelles sont ferm\u00e9es. Nous conseillons aux traders de r\u00e9duire drastiquement l\u2019effet de levier sur les plateformes d\u00e9centralis\u00e9es entre la cl\u00f4ture du march\u00e9 am\u00e9ricain et l\u2019ouverture asiatique, lorsque la faiblesse des carnets d\u2019ordres rend les comptes tr\u00e8s vuln\u00e9rables \u00e0 des liquidations brutales.<\/p>\n<h3>Correction sectorielle et strat\u00e9gies de gestion du risque<\/h3>\n<p>L\u2019ensemble du secteur des semi-conducteurs traverse une correction douloureuse, avec un Kospi en chute de 11 % et un SK Hynix en baisse de pr\u00e8s de 48 % par rapport \u00e0 son sommet de fin juin. Historiquement, les grands replis des semi-conducteurs \u2014 comme la surabondance de puces de 2022, lorsque le Philadelphia Semiconductor Index avait c\u00e9d\u00e9 plus de 35 % \u2014 montrent que ces corrections n\u00e9cessitent souvent plusieurs semaines de consolidation avant d\u2019identifier un v\u00e9ritable point bas. Nous recommandons de couvrir les portefeuilles au comptant en vendant s\u00e9lectivement des perp\u00e9tuels li\u00e9s \u00e0 l\u2019IA, mais uniquement lors des p\u00e9riodes de forts volumes, lorsque les spreads sont les plus serr\u00e9s.<\/p>\n<p>Dans les prochaines semaines d\u2019ao\u00fbt, il faudra surveiller de pr\u00e8s les \u00e9carts de prix entre les perp\u00e9tuels d\u00e9centralis\u00e9s et les American Depositary Receipts (ADR) traditionnels afin de tirer parti de brefs d\u00e9sajustements propices \u00e0 l\u2019arbitrage. Avec des ADR de SK Hynix d\u00e9j\u00e0 en recul de 4,5 % et Nvidia confront\u00e9 \u00e0 ses propres vents contraires li\u00e9s \u00e0 d\u2019importants engagements sur les centres de donn\u00e9es, l\u2019\u00e9lan haussier des mat\u00e9riels pour l\u2019IA marque temporairement le pas. Pour traverser ces poches locales d\u2019ass\u00e8chement de liquidit\u00e9, les traders devraient \u00e9largir leurs seuils de stop-loss et maintenir des marges de collat\u00e9ral plus importantes qu\u2019\u00e0 l\u2019accoutum\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><b>Commencez \u00e0 trader d\u00e8s maintenant \u2014 cliquez <a href=\"https:\/\/www.vtmarkets.com\/fr-eu\/trade-now\/\">ici<\/a> pour cr\u00e9er votre compte r\u00e9el VT Markets.<\/b>\n\n<\/p>","protected":false},"excerpt":{"rendered":"<p>Flash crash sur Hyperliquid : les perp\u00e9tuels SK Hynix d\u00e9crochent de 20 % en une minute, sympt\u00f4me d\u2019une liquidit\u00e9 fragile hors s\u00e9ance. Le titre plonge ensuite avec le Kospi, sur fond de correction des semi-conducteurs.<\/p>\n","protected":false},"author":87,"featured_media":49680,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-51530","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-live-updates"],"acf":{"acf_article_selection_author":null},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Flash crash sur Hyperliquid : les perp\u00e9tuels SK Hynix d\u00e9crochent de 20 % en une minute, sympt\u00f4me d\u2019une liquidit\u00e9 fragile hors s\u00e9ance. 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