{"id":18083,"date":"2026-10-21T07:00:00","date_gmt":"2026-10-21T07:00:00","guid":{"rendered":"https:\/\/backcom.io\/?p=18083"},"modified":"2026-10-19T10:26:36","modified_gmt":"2026-10-19T10:26:36","slug":"ho-tro-va-khang-cu-cach-xac-dinh","status":"publish","type":"post","link":"https:\/\/backcom.io\/vi\/ho-tro-va-khang-cu-cach-xac-dinh","title":{"rendered":"H\u1ed7 Tr\u1ee3 V\u00e0 Kh\u00e1ng C\u1ef1 L\u00e0 G\u00ec? 5 C\u00e1ch X\u00e1c \u0110\u1ecbnh V\u00f9ng Gi\u00e1 Quan Tr\u1ecdng"},"content":{"rendered":"\n\n
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Nhi\u1ec1u trader k\u1ebb \u0111\u01b0\u1eddng h\u1ed7 tr\u1ee3 t\u1ea1i 4.200 tr\u00ean bi\u1ec3u \u0111\u1ed3 v\u00e0ng, r\u1ed3i b\u1ecb c\u1eaft l\u1ed7 khi m\u1ed9t r\u00e2u n\u1ebfn xuy\u00ean qua tr\u01b0\u1edbc l\u00fac gi\u00e1 quay l\u00ean.<\/p>\n\n\n\n

M\u1ed9t v\u00f9ng h\u1ed7 tr\u1ee3 kh\u00e1ng c\u1ef1<\/strong> l\u00e0 d\u1ea3i gi\u00e1 thay v\u00ec \u0111\u01b0\u1eddng k\u1ebb m\u1ea3nh. V\u1edbi h\u1ed7 tr\u1ee3 v\u00e0 kh\u00e1ng c\u1ef1 trong forex<\/strong>, trader c\u00f2n ph\u1ea3i t\u00ednh spread v\u00ec bi\u1ec3u \u0111\u1ed3 MT4\/MT5 th\u01b0\u1eddng v\u1ebd theo Bid, trong khi l\u1ec7nh mua kh\u1edbp theo Ask. Trong b\u00e0i vi\u1ebft n\u00e0y, Backcom.io s\u1ebd tr\u00ecnh b\u00e0y c\u00e1ch x\u00e1c \u0111\u1ecbnh h\u1ed7 tr\u1ee3 kh\u00e1ng c\u1ef1<\/strong> b\u1eb1ng n\u0103m d\u1ea5u hi\u1ec7u, nh\u1eadn di\u1ec7n ph\u00e1 v\u1ee1 gi\u1ea3<\/strong> v\u00e0 t\u00ednh l\u1ec7nh ch\u1edd, Stop Loss, lot qua v\u00ed d\u1ee5 XAUUSD gi\u1ea3 \u0111\u1ecbnh.<\/p>\n\n\n\n

H\u1ed7 Tr\u1ee3 V\u00e0 Kh\u00e1ng C\u1ef1 L\u00e0 G\u00ec: V\u00ec Sao L\u00e0 V\u00f9ng Gi\u00e1 Ch\u1ee9 Kh\u00f4ng Ph\u1ea3i M\u1ed9t \u0110\u01b0\u1eddng<\/h2>\n\n\n\n
\"H\u1ed7
H\u1ed7 Tr\u1ee3 V\u00e0 Kh\u00e1ng C\u1ef1 L\u00e0 G\u00ec: V\u00ec Sao L\u00e0 V\u00f9ng Gi\u00e1 Ch\u1ee9 Kh\u00f4ng Ph\u1ea3i M\u1ed9t \u0110\u01b0\u1eddng<\/figcaption><\/figure>\n\n\n\n

H\u1ed7 tr\u1ee3 v\u00e0 kh\u00e1ng c\u1ef1<\/strong> l\u00e0 c\u00e1c v\u00f9ng gi\u00e1 n\u01a1i l\u1ef1c mua v\u00e0 l\u1ef1c b\u00e1n t\u1eebng g\u1eb7p nhau \u0111\u1ee7 m\u1ea1nh \u0111\u1ec3 t\u1ea1m ch\u1eb7n m\u1ed9t nh\u1ecbp di chuy\u1ec3n.<\/p>\n\n\n\n

Theo StockCharts ChartSchool, gi\u00e1 c\u00f3 th\u1ec3 nh\u00fang qua h\u1ed7 tr\u1ee3 trong ch\u1ed1c l\u00e1t. Theo John J. Murphy, h\u1ed7 tr\u1ee3 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t m\u1ee9c ho\u1eb7c m\u1ed9t v\u00f9ng d\u01b0\u1edbi gi\u00e1. Tham kh\u1ea3o tr\u1ef1c ti\u1ebfp: \u0111\u1ecbnh ngh\u0129a h\u1ed7 tr\u1ee3 v\u00e0 kh\u00e1ng c\u1ef1 c\u1ee7a StockCharts ChartSchool<\/a>.<\/p>\n\n\n\n

Nghi\u00ean c\u1ee9u c\u1ee7a Carol Osler tr\u00ean Economic Policy Review<\/em> c\u1ee7a Fed New York so s\u00e1nh c\u00e1c m\u1ee9c do s\u00e1u c\u00f4ng ty c\u00f4ng b\u1ed1 v\u1edbi m\u1ee9c ch\u1ecdn ng\u1eabu nhi\u00ean cho ba c\u1eb7p t\u1ef7 gi\u00e1 giai \u0111o\u1ea1n 1996\u20131998. Gi\u00e1 b\u1eadt l\u1ea1i nhi\u1ec1u h\u01a1n kho\u1ea3ng 4\u20136 \u0111i\u1ec3m ph\u1ea7n tr\u0103m<\/strong>, nh\u01b0ng c\u00e1c c\u00f4ng ty ch\u1ec9 tr\u00f9ng kho\u1ea3ng 30%<\/strong> s\u1ed1 m\u1ee9c c\u00f3 th\u1ec3 tr\u00f9ng. Tham kh\u1ea3o tr\u1ef1c ti\u1ebfp: nghi\u00ean c\u1ee9u Support for Resistance<\/em> c\u1ee7a Fed New York (PDF)<\/a>.<\/p>\n\n\n\n

V\u00ec v\u1eady, b\u00e0i vi\u1ebft xem h\u1ed7 tr\u1ee3 v\u00e0 kh\u00e1ng c\u1ef1 l\u00e0 n\u01a1i quan s\u00e1t ph\u1ea3n \u1ee9ng gi\u00e1 v\u00e0 \u0111\u1eb7t gi\u1edbi h\u1ea1n r\u1ee7i ro, kh\u00f4ng ph\u1ea3i \u0111i\u1ec3m \u0111\u1ea3o chi\u1ec1u ch\u1eafc ch\u1eafn.<\/p>\n\n\n\n

C\u00e1ch V\u1ebd V\u00f9ng H\u1ed7 Tr\u1ee3 Kh\u00e1ng C\u1ef1: Th\u00e2n N\u1ebfn Hay R\u00e2u N\u1ebfn?<\/h3>\n\n\n\n

Trader c\u00f3 th\u1ec3 v\u1ebd v\u00f9ng theo ba b\u01b0\u1edbc:<\/p>\n\n\n\n

    \n
  1. \u0110\u00e1nh d\u1ea5u \u0111\u1ec9nh, \u0111\u00e1y c\u0169:<\/strong> Trader t\u00ecm hai ho\u1eb7c ba \u0111i\u1ec3m quay \u0111\u1ea7u r\u00f5 tr\u00ean H4 ho\u1eb7c D1.<\/li>\n\n\n\n
  2. L\u1ea5y kho\u1ea3ng t\u1eeb th\u00e2n t\u1edbi r\u00e2u:<\/strong> V\u1edbi h\u1ed7 tr\u1ee3, m\u00e9p tr\u00ean g\u1ea7n v\u00f9ng \u0111\u00f3ng c\u1eeda c\u1ee7a n\u1ebfn \u0111\u00e1y, c\u00f2n m\u00e9p d\u01b0\u1edbi \u1edf r\u00e2u th\u1ea5p nh\u1ea5t.<\/li>\n\n\n\n
  3. \u0110i\u1ec1u ch\u1ec9nh theo bi\u00ean dao \u0111\u1ed9ng:<\/strong> V\u00f9ng \u0111i ngang h\u1eb9p th\u01b0\u1eddng cho ph\u00e9p v\u1ebd v\u00f9ng h\u1eb9p h\u01a1n, c\u00f2n bi\u00ean r\u1ed9ng c\u1ea7n kho\u1ea3ng gi\u00e1 r\u1ed9ng h\u01a1n.<\/li>\n<\/ol>\n\n\n\n

    Gi\u1ea3 s\u1eed hai \u0111\u00e1y H4 c\u00f3 r\u00e2u quanh 4.194\u20134.197 v\u00e0 \u0111\u00f3ng c\u1eeda g\u1ea7n 4.200. Trader c\u00f3 th\u1ec3 \u0111\u00e1nh d\u1ea5u v\u00f9ng h\u1ed7 tr\u1ee3 kh\u00e1ng c\u1ef1<\/strong> gi\u1ea3 \u0111\u1ecbnh 4.194\u20134.200, thay v\u00ec m\u1ed9t \u0111\u01b0\u1eddng 4.200,00.<\/p>\n\n\n\n

    5 C\u00e1ch X\u00e1c \u0110\u1ecbnh H\u1ed7 Tr\u1ee3 Kh\u00e1ng C\u1ef1: \u0110\u1ec9nh \u0110\u00e1y, S\u1ed1 Tr\u00f2n, V\u00f9ng \u0110i Ngang, Khung L\u1edbn, Ph\u1ea3n \u1ee8ng N\u1ebfn<\/h2>\n\n\n\n
    \"C\u00e1ch
    5 C\u00e1ch X\u00e1c \u0110\u1ecbnh H\u1ed7 Tr\u1ee3 Kh\u00e1ng C\u1ef1: \u0110\u1ec9nh \u0110\u00e1y, S\u1ed1 Tr\u00f2n, V\u00f9ng \u0110i Ngang, Khung L\u1edbn, Ph\u1ea3n \u1ee8ng N\u1ebfn<\/figcaption><\/figure>\n\n\n\n

    N\u0103m c\u00e1ch x\u00e1c \u0111\u1ecbnh h\u1ed7 tr\u1ee3 kh\u00e1ng c\u1ef1<\/strong> g\u1ed3m:<\/p>\n\n\n\n

      \n
    1. \u0110\u1ec9nh v\u00e0 \u0111\u00e1y c\u0169 n\u01a1i gi\u00e1 t\u1eebng quay \u0111\u1ea7u.<\/li>\n\n\n\n
    2. S\u1ed1 tr\u00f2n nh\u01b0 4.200 ho\u1eb7c 4.250 tr\u00ean v\u00e0ng.<\/li>\n\n\n\n
    3. M\u00e9p tr\u00ean v\u00e0 m\u00e9p d\u01b0\u1edbi c\u1ee7a v\u00f9ng \u0111i ngang.<\/li>\n\n\n\n
    4. V\u00f9ng xu\u1ea5t hi\u1ec7n tr\u00ean nhi\u1ec1u khung th\u1eddi gian l\u1edbn.<\/li>\n\n\n\n
    5. R\u00e2u d\u00e0i ho\u1eb7c N\u1ebfn B\u00faa t\u1ea1i m\u00e9p v\u00f9ng.<\/li>\n<\/ol>\n\n\n\n

      \u0110\u1ec9nh V\u00e0 \u0110\u00e1y C\u0169 (Swing High, Swing Low)<\/h3>\n\n\n\n

      \u0110\u00e1y ph\u1ea3n \u1ee9ng c\u0169, hay swing low, gi\u00fap trader t\u00ecm h\u1ed7 tr\u1ee3. \u0110\u1ec9nh ph\u1ea3n \u1ee9ng c\u0169, hay swing high, gi\u00fap t\u00ecm kh\u00e1ng c\u1ef1. ChartSchool minh h\u1ecda ba \u0111\u00e1y quanh 31\u201333 USD tr\u00ean bi\u1ec3u \u0111\u1ed3 Halliburton. C\u00e1c \u0111\u00e1y kh\u00f4ng tr\u00f9ng nhau, n\u00ean trader c\u00f3 th\u1ec3 v\u1ebd m\u1ed9t v\u00f9ng bao qu\u00e1t thay v\u00ec ch\u1ecdn \u0111\u00fang m\u1ed9t gi\u00e1. \u0110\u1ec9nh c\u0169 c\u0169ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd t\u01b0\u01a1ng t\u1ef1 khi t\u00ecm kh\u00e1ng c\u1ef1.<\/p>\n\n\n\n

      S\u1ed1 Tr\u00f2n: N\u01a1i L\u1ec7nh Ch\u1edd V\u00e0 L\u1ec7nh C\u1eaft L\u1ed7 T\u1ee5 L\u1ea1i<\/h3>\n\n\n\n

      S\u1ed1 tr\u00f2n \u0111\u00e1ng ch\u00fa \u00fd v\u00ec nhi\u1ec1u l\u1ec7nh t\u1eadp trung quanh \u0111\u00f3. Trong m\u1eabu c\u1ee7a Osler n\u0103m 2000, h\u01a1n 70%<\/strong> m\u1ee9c \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 c\u00f3 ch\u1eef s\u1ed1 cu\u1ed1i l\u00e0 0 v\u00e0 96%<\/strong> k\u1ebft th\u00fac b\u1eb1ng 0 ho\u1eb7c 5. Nghi\u00ean c\u1ee9u s\u1ed5 l\u1ec7nh sau \u0111\u00f3 c\u1ee7a Osler ghi nh\u1eadn l\u1ec7nh ch\u1ed1t l\u1eddi t\u1ee5 t\u1ea1i s\u1ed1 tr\u00f2n, c\u00f2n l\u1ec7nh c\u1eaft l\u1ed7 th\u01b0\u1eddng n\u1eb1m s\u00e1t hai ph\u00eda.<\/p>\n\n\n\n

      V\u00f9ng \u0110i Ngang (Trading Range)<\/h3>\n\n\n\n

      Khi gi\u00e1 dao \u0111\u1ed9ng nhi\u1ec1u l\u1ea7n gi\u1eefa hai m\u00e9p c\u1ee7a m\u1ed9t bi\u00ean h\u1eb9p, cung v\u00e0 c\u1ea7u \u0111ang t\u1ea1m c\u00e2n b\u1eb1ng. ChartSchool xem vi\u1ec7c gi\u00e1 tho\u00e1t kh\u1ecfi bi\u00ean l\u00e0 d\u1ea5u hi\u1ec7u tr\u1ea1ng th\u00e1i \u1ea5y c\u00f3 th\u1ec3 thay \u0111\u1ed5i. Trader n\u00ean \u0111\u00e1nh d\u1ea5u hai m\u00e9p v\u00e0 xem n\u1ebfn c\u00f3 gi\u1eef \u0111\u01b0\u1ee3c ngo\u00e0i bi\u00ean hay kh\u00f4ng. Phong c\u00e1ch giao d\u1ecbch quanh m\u00e9p bi\u00ean \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y ri\u00eang trong b\u00e0i scalping l\u00e0 g\u00ec<\/a>.<\/p>\n\n\n\n

      Khung Th\u1eddi Gian L\u1edbn: Tu\u1ea7n V\u00e0 Ng\u00e0y Tr\u01b0\u1edbc, Khung Gi\u1edd Sau<\/h3>\n\n\n\n

      V\u00f9ng th\u1ea5y r\u00f5 tr\u00ean W1 ho\u1eb7c D1 th\u01b0\u1eddng \u0111\u00e1ng ch\u00fa \u00fd h\u01a1n d\u1ea5u v\u1ebft ch\u1ec9 xu\u1ea5t hi\u1ec7n \u1edf M15. Trader c\u00f3 th\u1ec3 v\u1ebd v\u00f9ng tr\u00ean W1, D1, H4, r\u1ed3i d\u00f9ng H1 ho\u1eb7c M15 \u0111\u1ec3 theo d\u00f5i ph\u1ea3n \u1ee9ng. \u0110\u01b0\u1eddng trung b\u00ecnh \u0111\u1ed9ng ho\u1eb7c \u0111\u01b0\u1eddng xu h\u01b0\u1edbng c\u00f3 th\u1ec3 t\u1ea1o th\u00eam kh\u00e1ng c\u1ef1 \u0111\u1ed9ng<\/strong>, nh\u01b0ng kh\u00f4ng thay th\u1ebf v\u00f9ng gi\u00e1 \u0111\u00e3 v\u1ebd.<\/p>\n\n\n\n

      Ph\u1ea3n \u1ee8ng N\u1ebfn: R\u00e2u D\u00e0i V\u00e0 N\u1ebfn B\u00faa T\u1ea1i M\u00e9p V\u00f9ng<\/h3>\n\n\n\n

      R\u00e2u d\u01b0\u1edbi d\u00e0i th\u00f2 v\u00e0o h\u1ed7 tr\u1ee3 r\u1ed3i \u0111\u00f3ng c\u1eeda quay l\u1ea1i cho th\u1ea5y gi\u00e1 th\u1ea5p b\u1ecb t\u1eeb ch\u1ed1i trong n\u1ebfn \u0111\u00f3. ChartSchool ghi nh\u1eadn r\u00e2u d\u01b0\u1edbi d\u00e0i v\u00e0 N\u1ebfn B\u00faa trong m\u1ed9t v\u00ed d\u1ee5 v\u1ec1 v\u00f9ng h\u1ed7 tr\u1ee3.<\/p>\n\n\n\n

      H\u1ed7 Tr\u1ee3 Th\u00e0nh Kh\u00e1ng C\u1ef1: Ph\u00e1 V\u1ee1 Th\u1eadt, Ph\u00e1 V\u1ee1 Gi\u1ea3 V\u00e0 C\u00e1ch Ch\u1edd X\u00e1c Nh\u1eadn<\/h2>\n\n\n\n
      \"Ph\u00e1
      H\u1ed7 Tr\u1ee3 Th\u00e0nh Kh\u00e1ng C\u1ef1: Ph\u00e1 V\u1ee1 Th\u1eadt, Ph\u00e1 V\u1ee1 Gi\u1ea3 V\u00e0 C\u00e1ch Ch\u1edd X\u00e1c Nh\u1eadn<\/figcaption><\/figure>\n\n\n\n

      Sau khi gi\u00e1 ph\u00e1 xu\u1ed1ng, h\u1ed7 tr\u1ee3 th\u00e0nh kh\u00e1ng c\u1ef1<\/strong> n\u1ebfu gi\u00e1 quay l\u1ea1i v\u00f9ng c\u0169 r\u1ed3i b\u1ecb l\u1ef1c b\u00e1n \u0111\u1ea9y xu\u1ed1ng. L\u1ea7n quay l\u1ea1i ki\u1ec3m tra v\u00f9ng g\u1ecdi l\u00e0 retest, nh\u01b0ng ChartSchool l\u01b0u \u00fd retest kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng x\u1ea3y ra<\/strong>.<\/p>\n\n\n\n

      Ph\u00e1 v\u1ee1 gi\u1ea3<\/strong> l\u00e0 l\u00fac gi\u00e1 v\u01b0\u1ee3t m\u00e9p v\u00f9ng trong th\u1eddi gian ng\u1eafn r\u1ed3i tr\u1edf v\u00e0o trong. Trader c\u1ea7n xem gi\u00e1 \u0111\u00f3ng c\u1eeda n\u1ebfn<\/strong>, th\u1eddi gian gi\u00e1 gi\u1eef ngo\u00e0i v\u00f9ng v\u00e0 ph\u1ea3n \u1ee9ng n\u1ebfu c\u00f3 retest.<\/p>\n\n\n\n

      D\u1ea5u Hi\u1ec7u Ph\u00e2n Bi\u1ec7t Ph\u00e1 V\u1ee1 Th\u1eadt V\u00e0 Ph\u00e1 V\u1ee1 Gi\u1ea3<\/h3>\n\n\n\n
      D\u1ea5u hi\u1ec7u<\/th>Nghi\u00eang v\u1ec1 ph\u00e1 v\u1ee1 th\u1eadt<\/th>Nghi\u00eang v\u1ec1 ph\u00e1 v\u1ee1 gi\u1ea3<\/th><\/tr><\/thead>
      Gi\u00e1 \u0111\u00f3ng c\u1eeda n\u1ebfn H4, D1<\/td>\u0110\u00f3ng h\u1eb3n ngo\u00e0i v\u00f9ng<\/td>R\u00e2u xuy\u00ean qua, th\u00e2n \u0111\u00f3ng trong v\u00f9ng<\/td><\/tr>
      Th\u1eddi gian ngo\u00e0i v\u00f9ng<\/td>Gi\u1eef \u0111\u01b0\u1ee3c th\u00eam v\u00e0i n\u1ebfn<\/td>Quay l\u1ea1i ngay n\u1ebfn sau<\/td><\/tr>
      L\u1ea7n quay l\u1ea1i \u0111\u1ea7u ti\u00ean<\/td>B\u1ecb t\u1eeb ch\u1ed1i \u1edf m\u00e9p v\u00f9ng c\u0169<\/td>\u0110\u00f3ng c\u1eeda tr\u1edf l\u1ea1i trong v\u00f9ng<\/td><\/tr>
      Th\u1eddi \u0111i\u1ec3m<\/td>Kh\u00f4ng s\u00e1t gi\u1edd tin l\u1edbn<\/td>G\u1ea7n gi\u1edd tin, spread gi\u00e3n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      Trader c\u1ea7n ki\u1ec3m tra th\u00eam:<\/p>\n\n\n\n