{"id":18082,"date":"2026-10-21T04:30:00","date_gmt":"2026-10-21T04:30:00","guid":{"rendered":"https:\/\/backcom.io\/?p=18082"},"modified":"2026-10-19T10:24:24","modified_gmt":"2026-10-19T10:24:24","slug":"chi-bao-rsi-la-gi-cach-dung","status":"publish","type":"post","link":"https:\/\/backcom.io\/vi\/chi-bao-rsi-la-gi-cach-dung","title":{"rendered":"Ch\u1ec9 B\u00e1o RSI L\u00e0 G\u00ec? C\u00e1ch D\u00f9ng RSI, Qu\u00e1 Mua Qu\u00e1 B\u00e1n V\u00e0 Ph\u00e2n K\u1ef3"},"content":{"rendered":"\n\n
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Tr\u00ean bi\u1ec3u \u0111\u1ed3 EUR\/USD ho\u1eb7c v\u00e0ng trong MetaTrader 5, RSI v\u01b0\u1ee3t 70 d\u1ec5 khi\u1ebfn trader ngh\u0129 gi\u00e1 s\u1eafp gi\u1ea3m. Nh\u01b0ng trong xu h\u01b0\u1edbng t\u0103ng m\u1ea1nh, RSI c\u00f3 th\u1ec3 \u1edf tr\u00ean 70 nhi\u1ec1u n\u1ebfn m\u00e0 gi\u00e1 v\u1eabn \u0111i l\u00ean. Hi\u1ec3u ch\u1ec9 b\u00e1o RSI l\u00e0 g\u00ec<\/strong> quan tr\u1ecdng h\u01a1n thu\u1ed9c m\u1ed1c 70\/30: RSI \u0111o \u0111\u1ed9ng l\u01b0\u1ee3ng, kh\u00f4ng ph\u00e1t l\u1ec7nh mua b\u00e1n.<\/p>\n\n\n\n

Trong b\u00e0i vi\u1ebft n\u00e0y, Backcom.io gi\u1ea3i th\u00edch c\u00f4ng th\u1ee9c 14 k\u1ef3, c\u00e1ch d\u00f9ng RSI<\/strong> v\u1edbi v\u00f9ng RSI qu\u00e1 mua qu\u00e1 b\u00e1n<\/strong> v\u00e0 m\u1ed1c 50, c\u00e1ch \u0111\u1ecdc ph\u00e2n k\u1ef3 RSI<\/strong>, c\u00e1c b\u01b0\u1edbc c\u00e0i RSI tr\u00ean MT5<\/strong> v\u00e0 b\u1ed1n l\u1ed7i th\u01b0\u1eddng g\u1eb7p.<\/p>\n\n\n\n

Ch\u1ec9 B\u00e1o RSI L\u00e0 G\u00ec: Ngu\u1ed3n G\u1ed1c Wilder V\u00e0 C\u00f4ng Th\u1ee9c RSI 14 K\u1ef3<\/h2>\n\n\n\n
\"Ch\u1ec9
Ch\u1ec9 B\u00e1o RSI L\u00e0 G\u00ec: Ngu\u1ed3n G\u1ed1c Wilder V\u00e0 C\u00f4ng Th\u1ee9c RSI 14 K\u1ef3<\/figcaption><\/figure>\n\n\n\n

Ch\u1ec9 b\u00e1o RSI<\/strong> (Relative Strength Index, ch\u1ec9 s\u1ed1 s\u1ee9c m\u1ea1nh t\u01b0\u01a1ng \u0111\u1ed1i) l\u00e0 ch\u1ec9 b\u00e1o \u0111\u1ed9ng l\u01b0\u1ee3ng do J. Welles Wilder Jr. gi\u1edbi thi\u1ec7u n\u0103m 1978 trong cu\u1ed1n New Concepts in Technical Trading Systems<\/em>. RSI so s\u00e1nh m\u1ee9c t\u0103ng v\u00e0 gi\u1ea3m trung b\u00ecnh c\u1ee7a gi\u00e1 \u0111\u00f3ng c\u1eeda, r\u1ed3i quy k\u1ebft qu\u1ea3 v\u1ec1 thang 0\u2013100.<\/p>\n\n\n\n

T\u00e0i li\u1ec7u MT5 x\u1ebfp RSI v\u00e0o nh\u00f3m Oscillators<\/em> v\u00e0 ghi Wilder khuy\u00ean d\u00f9ng 14 k\u1ef3. Tham kh\u1ea3o tr\u1ef1c ti\u1ebfp: trang Relative Strength Index trong t\u00e0i li\u1ec7u MetaTrader 5<\/a>.<\/p>\n\n\n\n

L\u01b0u \u00fd:<\/strong> \u201c14 k\u1ef3\u201d l\u00e0 14 n\u1ebfn c\u1ee7a khung \u0111ang xem: H1 t\u01b0\u01a1ng \u1ee9ng 14 gi\u1edd, D1 t\u01b0\u01a1ng \u1ee9ng 14 ng\u00e0y.<\/p>\n\n\n\n

C\u00f4ng Th\u1ee9c RSI V\u00e0 C\u00e1ch L\u00e0m M\u01b0\u1ee3t Wilder<\/h3>\n\n\n\n

RS \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng:<\/p>\n\n\n\n

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RS = Trung b\u00ecnh t\u0103ng \u00f7 Trung b\u00ecnh gi\u1ea3m<\/strong><\/p>\n<\/blockquote>\n\n\n\n

RSI \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng:<\/p>\n\n\n\n

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RSI = 100 \u2212 100 \u00f7 (1 + RS)<\/strong><\/p>\n<\/blockquote>\n\n\n\n

Quy tr\u00ecnh t\u00ednh g\u1ed3m:<\/p>\n\n\n\n

    \n
  1. T\u00e1ch thay \u0111\u1ed5i:<\/strong> So t\u1eebng gi\u00e1 \u0111\u00f3ng c\u1eeda, ghi m\u1ee9c t\u0103ng ho\u1eb7c \u0111\u1ed9 l\u1edbn m\u1ee9c gi\u1ea3m v\u00e0o c\u1ed9t t\u01b0\u01a1ng \u1ee9ng.<\/li>\n\n\n\n
  2. L\u1ea5y trung b\u00ecnh \u0111\u1ea7u:<\/strong> C\u1ed9ng ri\u00eang 14 m\u1ee9c t\u0103ng v\u00e0 14 m\u1ee9c gi\u1ea3m, r\u1ed3i chia m\u1ed7i t\u1ed5ng cho 14.<\/li>\n\n\n\n
  3. L\u00e0m m\u01b0\u1ee3t c\u00e1c k\u1ef3 sau:<\/strong> K\u1ebft h\u1ee3p trung b\u00ecnh k\u1ef3 tr\u01b0\u1edbc v\u1edbi thay \u0111\u1ed5i hi\u1ec7n t\u1ea1i.<\/li>\n<\/ol>\n\n\n\n

    V\u1edbi RSI 14 k\u1ef3, trung b\u00ecnh t\u0103ng m\u1edbi \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng:<\/p>\n\n\n\n

    \n

    Trung b\u00ecnh t\u0103ng m\u1edbi = (Trung b\u00ecnh t\u0103ng tr\u01b0\u1edbc \u00d7 13 + M\u1ee9c t\u0103ng hi\u1ec7n t\u1ea1i) \u00f7 14<\/strong><\/p>\n<\/blockquote>\n\n\n\n

    Trung b\u00ecnh gi\u1ea3m t\u00ednh t\u01b0\u01a1ng t\u1ef1. StockCharts g\u1ecdi \u0111\u00e2y l\u00e0 c\u00e1ch l\u00e0m m\u01b0\u1ee3t g\u1ea7n v\u1edbi EMA. M\u00e3 m\u1eabu RSI.mq5 \u0111i k\u00e8m MT5 c\u0169ng d\u00f9ng c\u00e1ch n\u00e0y. N\u1ebfu hai trung b\u00ecnh b\u1eb1ng nhau, RSI b\u1eb1ng 50. N\u1ebfu trung b\u00ecnh gi\u1ea3m b\u1eb1ng 0, RSI b\u1eb1ng 100. Tham kh\u1ea3o tr\u1ef1c ti\u1ebfp: b\u00e0i Relative Strength Index tr\u00ean StockCharts ChartSchool<\/a>.<\/p>\n\n\n\n

    V\u00ed D\u1ee5 T\u00ednh RSI 14 K\u1ef3 T\u1eeb 15 Gi\u00e1 \u0110\u00f3ng C\u1eeda<\/h3>\n\n\n\n

    V\u00ed d\u1ee5 d\u00f9ng gi\u00e1 gi\u1ea3 \u0111\u1ecbnh, kh\u00f4ng ph\u1ea3i d\u1eef li\u1ec7u th\u1ecb tr\u01b0\u1eddng. M\u01b0\u1eddi l\u0103m gi\u00e1 t\u1ea1o 14 thay \u0111\u1ed5i, \u0111\u1ee7 t\u00ednh RSI \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n

    Gi\u00e1 th\u1ee9<\/th>Gi\u00e1 \u0111\u00f3ng c\u1eeda<\/th>M\u1ee9c t\u0103ng<\/th>M\u1ee9c gi\u1ea3m<\/th><\/tr><\/thead>
    1<\/td>100,0<\/td>\u2014<\/td>\u2014<\/td><\/tr>
    2<\/td>102,0<\/td>2,0<\/td>0<\/td><\/tr>
    3<\/td>101,0<\/td>0<\/td>1,0<\/td><\/tr>
    4<\/td>102,5<\/td>1,5<\/td>0<\/td><\/tr>
    5<\/td>102,0<\/td>0<\/td>0,5<\/td><\/tr>
    6<\/td>103,0<\/td>1,0<\/td>0<\/td><\/tr>
    7<\/td>101,0<\/td>0<\/td>2,0<\/td><\/tr>
    8<\/td>104,0<\/td>3,0<\/td>0<\/td><\/tr>
    9<\/td>102,8<\/td>0<\/td>1,2<\/td><\/tr>
    10<\/td>105,1<\/td>2,3<\/td>0<\/td><\/tr>
    11<\/td>103,6<\/td>0<\/td>1,5<\/td><\/tr>
    12<\/td>107,6<\/td>4,0<\/td>0<\/td><\/tr>
    13<\/td>105,6<\/td>0<\/td>2,0<\/td><\/tr>
    14<\/td>108,6<\/td>3,0<\/td>0<\/td><\/tr>
    15<\/td>105,6<\/td>0<\/td>3,0<\/td><\/tr>
    T\u1ed5ng 14 thay \u0111\u1ed5i<\/strong><\/td>\u2014<\/td>16,8<\/td>11,2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    T\u1ed5ng t\u0103ng 16,8 v\u00e0 t\u1ed5ng gi\u1ea3m 11,2 cho trung b\u00ecnh 1,2 v\u00e0 0,8. Do \u0111\u00f3, RS = 1,5 v\u00e0 RSI = 60. Hai gi\u00e1 gi\u1ea3 \u0111\u1ecbnh ti\u1ebfp theo cho k\u1ebft qu\u1ea3:<\/p>\n\n\n\n