Ph\u00eda d\u01b0\u1edbi l\u00e0 \u0111\u1ed3 th\u1ecb ng\u00e0y c\u1ee7a c\u1ed5 phi\u1ebfu VIX s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng MA 50. Hai \u0111\u01b0\u1eddng m\u00e0u \u0111\u1ecf n\u1eb1m ngang l\u00e0 \u0111\u01b0\u1eddng h\u1ed7 tr\u1ee3\/kh\u00e1ng c\u1ef1 c\u1ee7a CP VIX.<\/p>\n Ch\u00fang ta c\u00f3 m\u1ed9t s\u1ed1 nh\u1eadn \u0111\u1ecbnh sau:<\/p>\n \u0110\u01b0\u1eddng MA 50 l\u00e0 \u0111\u01b0\u1eddng c\u1ef1c k\u1ef3 ph\u1ed5 bi\u1ebfn n\u00f3 cho ta c\u00e1c th\u00f4ng tin quan tr\u1ecdng:<\/p>\n C\u00e2u h\u1ecfi l\u00e0 c\u00e1c \u0111\u01b0\u1eddng MA kh\u00e1c th\u00ec th\u1ebf n\u00e0o?<\/strong><\/p>\n Tr\u00ean h\u00ecnh b\u1ed5 sung \u0111\u01b0\u1eddng MA 2<\/strong>0 v\u00e0 MA 9.<\/strong> S\u1ed1 ng\u00e0y c\u00e0ng nh\u1ecf th\u00ec gi\u00e1 c\u00e0ng s\u00e1t \u0111\u01b0\u1eddng trung b\u00ecnh. Gi\u00e1 c\u0169ng c\u00f3 ph\u1ea3n \u1ee9ng nh\u1ea5t \u0111\u1ecbnh v\u1edbi c\u00e1c \u0111\u01b0\u1eddng MA nh\u01b0ng c\u00f3 v\u1ebb nh\u01b0 MA 50<\/strong> th\u1ec3 hi\u1ec7n r\u00f5 r\u00e0ng h\u01a1n s\u1ef1 ph\u1ea3n \u1ee9ng. Theo l\u00fd thuy\u1ebft th\u00ec MA 50 l\u00e0 d\u00f9ng cho trung h\u1ea1n; MA 100 v\u00e0 MA 200 l\u00e0 cho d\u00e0i h\u1ea1n. <\/p>\n K\u00e9o v\u1ec1 qu\u00e1 kh\u1ee9 c\u1ee7a cp VIX ta c\u0169ng c\u00f3 th\u00eam kh\u00e1 nhi\u1ec1u th\u00f4ng tin:<\/strong><\/p>\n T\u1ea1i th\u1eddi \u0111i\u1ec3m 8\/4, gi\u00e1 \u0111ang tr\u00ean \u0111\u01b0\u1eddng MA 50 nh\u01b0ng khi khi gi\u00e1 v\u1eeba ph\u00e1 v\u1ee1 MA 50 th\u00ec l\u1eadp t\u1ee9c gi\u1ea3m r\u1ea5t m\u1ea1nh khi ch\u1ea1m t\u1edbi \u0111\u01b0\u1eddng B n\u00f3 m\u1edbi d\u1eebng l\u1ea1i. T\u1eeb 8\/4\/2024 t\u1edbi 3\/2\/2025, gi\u00e1 ph\u00eda d\u01b0\u1edbi d\u01b0\u1eddng MA 50 trong khi MA 50 l\u1ea1i h\u01b0\u1edbng xu\u1ed1ng v\u00ec v\u1eady c\u1ed5 phi\u1ebfu \u0111ang \u1edf xu h\u01b0\u1edbng gi\u1ea3m. Ch\u00fang ta n\u00ean tr\u00e1nh xa c\u00e1c c\u1ed5 phi\u1ebfu trong m\u1ed9t xu h\u01b0\u1edbng gi\u1ea3m; nh\u00ecn \u0111\u1ed3 th\u1ecb ta c\u0169ng th\u1ea5y x\u00e1c su\u1ea5t thua cao h\u01a1n nhi\u1ec1u so v\u1edbi th\u1eafng.<\/p>\n Trong to\u00e0n b\u1ed9 giai \u0111o\u1ea1n n\u00e0y gi\u00e1 \u0111\u00e3 c\u1ed1 g\u1eafng v\u01b0\u1ee3t l\u00ean MA 50 v\u00e0 ph\u1ea3i t\u1edbi l\u1ea7n th\u1ee9 3 n\u00f3 m\u1edbi th\u00e0nh c\u00f4ng. T\u1ea1i l\u1ea7n th\u1ee9 3 n\u00f3 test m\u1ed9t l\u1ea7n v\u00e0 b\u1eadt l\u00ean nh\u1edd v\u1eady k\u00edch ho\u1ea1t m\u1ed9t l\u01b0\u1ee3ng ng\u01b0\u1eddi mua l\u1edbn v\u00ec x\u00e1c su\u1ea5t n\u00f3 b\u01b0\u1edbc v\u00e0o xu h\u01b0\u1edbng t\u0103ng t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3. Gi\u00e1 \u0111\u01b0\u1ee3c k\u00e9o m\u1ea1nh l\u00ean y nh\u01b0 l\u00e0 n\u00f3 \u0111\u00e3 b\u1ecb k\u00e9o m\u1ea1nh xu\u1ed1ng.<\/p>\n T\u01b0\u01a1ng t\u1ef1 t\u1ea1i th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i n\u1ebfu nh\u01b0 gi\u00e1 ph\u00e1 v\u1ee1 MA50 l\u1ea7n n\u1eefa th\u00ec nhi\u1ec7m v\u1ee5 c\u1ee7a b\u1ea1n l\u00e0 ph\u1ea3i b\u00e1n c\u00e0ng nhanh c\u00e0ng t\u1ed1t v\u00ec cho d\u00f9 l\u1ed7 th\u00ec c\u0169ng s\u1ebd l\u1ed7 \u00edt h\u01a1n l\u00e0 n\u1eafm gi\u1eef. C\u00f3 r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi ngo\u00e0i kia \u0111ang suy ngh\u0129 nh\u01b0 v\u1eady n\u00ean n\u00f3 s\u1ebd bi\u1ebfn l\u1eddi nguy\u1ec1n n\u00e0y th\u00e0nh hi\u1ec7n th\u1ef1c.<\/p>\n M\u1ed9t s\u1ed1 c\u1ed5 phi\u1ebfu kh\u00e1c:<\/strong><\/p>\n C\u1ed5 phi\u1ebfu FPT<\/strong><\/p>\n FPT t\u1eeb 6\/2 t\u1edbi nay n\u00f3 trong m\u1ed9t xu h\u01b0\u1edbng gi\u1ea3m khi n\u1eb1m d\u01b0\u1edbi MA 50 v\u00e0 MA 50 th\u00ec \u0111ang d\u1ed1c xu\u1ed1ng. V\u00ec h\u1ea7u h\u1ebft n\u0111t \u0111\u1ec1u kh\u00f4ng th\u00edch \u0111\u1ea7u t\u01b0 cp trong m\u1ed9t xu h\u01b0\u1edbng gi\u1ea3m n\u00ean l\u1ef1c b\u00e1n r\u1ea5t m\u1ea1nh \u0111\u1ea9y gi\u00e1 gi\u1ea3m s\u00e2u ph\u1ea3i t\u1edbi ng\u00e0y 9\/4 m\u1edbi b\u1eadt l\u00ean.<\/p>\n N\u00f3 \u0111\u00e3 v\u01b0\u1ee3t qua MA 50 v\u00e0o ng\u00e0y 13\/5 nh\u01b0ng kh\u00f4ng th\u00e0nh c\u00f4ng v\u00e0 hi\u1ec7n n\u1eb1m tr\u00f9ng v\u1edbi MA 50. \u0110\u01b0\u1eddng MA50 \u0111\u00e3 d\u1ea7n b\u1edbt d\u1ed1c h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ti\u1ec1m t\u00e0ng cho vi\u1ec7c b\u1eadt l\u00ean kh\u1ecfi MA 50 tr\u1edf th\u00e0nh m\u1ed9t xu h\u01b0\u1edbng t\u0103ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 th\u1eddi \u0111i\u1ec3m 26\/11\/2024. Tuy nhi\u00ean c\u0169ng ph\u1ea3i ch\u00fa \u00fd l\u00e0 n\u00f3 v\u1eabn \u0111ang n\u1eb1m d\u01b0\u1edbi r\u1ea5t xa \u0111\u01b0\u1eddng MA 200 trong khi m\u1ed9t c\u1ed5 phi\u1ebfu c\u00f3 xu h\u01b0\u1edbng t\u0103ng \u1edf d\u00e0i h\u1ea1n ph\u1ea3i n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng n\u00e0y. V\u00ec v\u1eady mua gi\u1edd kh\u1ea3 n\u0103ng \u0111\u1ee3i n\u00f3 t\u0103ng s\u1ebd r\u1ea5t l\u00e2u.<\/p>\n C\u1ed5 phi\u1ebfu MWG<\/strong><\/p>\n Nh\u00ecn \u0111\u1ed3 th\u1ecb n\u00e0y ta c\u00f3 th\u1ec3 th\u1ea5y c\u00e1ch MWG ph\u1ea3n \u1ee9ng r\u00f5 r\u00e0ng v\u1edbi MA50 v\u00e0 MA200. MWG l\u00fac n\u1eb1m d\u01b0\u1edbi l\u00fac n\u1eb1m tr\u00ean MA 50 trong khi MA50 ch\u01b0a r\u00f5 d\u1ed1c l\u00ean hay d\u1ed1c xu\u1ed1ng v\u00ec v\u1eady MWG ch\u01b0a x\u00e1c l\u1eadp d\u01b0\u1ee3c xu h\u01b0\u1edbng \u0111ang t\u0103ng hay gi\u1ea3m n\u00f3 thu\u1ed9c d\u1ea1ng kh\u00f4ng r\u00f5 xu h\u01b0\u1edbng.<\/p>\n M\u1ea5y ng\u00e0y g\u1ea7n \u0111\u00e2y nh\u1edd hi\u1ec7u \u1ee9ng ch\u1ed1ng h\u00e0ng gi\u1ea3 h\u00e0ng nh\u00e1i khi\u1ebfn cho N\u0110T k\u1ef3 v\u1ecdng MWG s\u1ebd h\u01b0\u1edfng l\u1ee3i v\u00ec v\u1eady n\u00f3 b\u1eadt l\u00ean tr\u00ean MA200 nh\u01b0ng n\u00f3 \u0111ang g\u1eb7p c\u1ea3n c\u1ee9ng ph\u00eda tr\u00ean khi ta nh\u00ecn th\u1eddi \u0111i\u1ec3m 12\/5. Nhi\u1ec1u nh\u00e0 \u0111\u1ea7u t\u01b0 k\u1eb9t h\u00e0ng \u1edf \u0111\u00e2y h\u1ecd s\u1ebd b\u00e1n m\u1ea1nh khi gi\u00e1 t\u1edbi \u0111\u00f3.<\/p>\n T\u00f3m l\u1ea1i \u0111\u01b0\u1eddng MA mang l\u1ea1i r\u1ea5t nhi\u1ec1u th\u00f4ng tin h\u1eefu \u00edch b\u1ea1n c\u00f3 th\u1ec3 xem x\u00e9t c\u00e1c cp m\u00ecnh \u0111ang hay \u0111\u1ecbnh n\u1eafm gi\u1eef ch\u1ec9 d\u01b0\u1edbi g\u00f3c \u0111\u1ed9 MA. <\/p>\n \u0110i\u1ec3m giao c\u1eaft c\u00e1c \u0111\u01b0\u1eddng MA<\/strong><\/p>\n Khi MA ng\u1eafn c\u1eaft l\u00ean tr\u00ean MA d\u00e0i h\u01a1n v\u00ed d\u1ee5 MA9 c\u1eaft l\u00ean MA20 n\u00f3 th\u1ec3 hi\u1ec7n r\u1eb1ng gi\u00e1 c\u1ee7a 9 ng\u00e0y g\u1ea7n k\u1ec1 \u0111ang cao h\u01a1n gi\u00e1 trung b\u00ecnh c\u1ee7a 20 ng\u00e0y; cp \u0111ang c\u00f3 xu h\u01b0\u1edbng t\u0103ng. MA9 c\u1eaft l\u00ean MA200 c\u00e0ng th\u1ec3 hi\u1ec7n r\u00f5 h\u01a1n; \u0111\u00f3 l\u00e0 nh\u1eefng \u0111i\u1ec3m n\u00ean mua v\u00ec cp \u0111ang c\u00f3 xu h\u01b0\u1edbng t\u0103ng.<\/p>\n M\u1eb7t kh\u00e1c khi MA ng\u1eafn ng\u00e0y c\u1eaft xu\u1ed1ng MA d\u00e0i ng\u00e0y h\u01a1n th\u1ec3 hi\u1ec7n cp \u0111ang y\u1ebfu \u0111i, c\u1ee7ng c\u1ed1 cho v\u1ecb th\u1ec3 b\u00e1n.<\/p>\n B\u1ea3n ch\u1ea5t c\u1ee7a \u0111\u01b0\u1eddng trung b\u00ecnh:<\/mark><\/strong><\/p>\n \u0110\u01b0\u1eddng trung b\u00ecnh \u0111\u1ed9ng \u0111\u01a1n gi\u1ea3n c\u1ee7a 20 ng\u00e0y b\u1eb1ng t\u1ed5ng gi\u00e1 \u0111\u00f3ng c\u1eeda c\u1ee7a 20 ng\u00e0y chia cho 20. Gi\u1ea3 s\u1eed \u0111\u01b0\u1eddng trung b\u00ecnh \u0111\u1ed9ng hi\u1ec7n t\u1ea1i l\u00e0 20.000\u0111; gi\u00e1 hi\u1ec7n t\u1ea1i l\u00e0 20500\u0111\/cp. N\u00f3 th\u1ec3 hi\u1ec7n r\u1eb1ng nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 mua trung b\u00ecnh trong 20 ng\u00e0y qua \u0111\u00e3 c\u00f3 l\u00e3i 500 \u0111\u1ed3ng; v\u00e0 nh\u1eefng ng\u01b0\u1eddi b\u00e1n \u0111\u00e3 m\u1ea5t \u0111i 500\u0111. <\/p>\n Khi b\u00ean mua v\u00e0 b\u00e1n th\u1ed1ng nh\u1ea5t m\u1ed9t m\u1ee9c gi\u00e1 l\u00e0 20.500\u0111 c\u00f3 ngh\u0129a l\u00e0 hai b\u00ean th\u1ed1ng nh\u1ea5t m\u1ed9t m\u1ee9c gi\u00e1 cao h\u01a1n gi\u00e1 trung b\u00ecnh trong 500\u0111 ng\u00e0y qua; n\u00f3 th\u1ec3 hi\u1ec7n r\u1eb1ng phe mua \u0111\u00e3 ch\u1ea5p nh\u1eadn mua gi\u00e1 cao h\u01a1n. v\u00e0 v\u00ec v\u1eady khi \u0111\u01b0\u1eddng gi\u00e1 c\u1eaft l\u00ean tr\u00ean ma20 th\u00ec c\u00f3 ngh\u0129a l\u00e0 b\u00ean mua \u0111ang m\u1ea1nh l\u00ean.<\/p>\n T\u01b0\u01a1ng t\u1ef1, khi gi\u00e1 n\u1eb1m d\u01b0\u1edbi ma20 n\u00f3 th\u1ec3 hi\u1ec7n phe b\u00e1n \u0111ang m\u1ea1nh h\u01a1n v\u00ec phe b\u00e1n \u0111\u00e3 ch\u1ea5p nh\u1eadn b\u00e1n \u1edf gi\u00e1 th\u1ea5p h\u01a1n gi\u00e1 trung b\u00ecnh. V\u00e0 xu h\u01b0\u1edbng gi\u00e1 c\u00f3 th\u1ec3 c\u00f2n th\u1ea5p h\u01a1n. V\u00ec v\u1eady m\u1ed7i khi gi\u00e1 g\u1eb7p c\u00e1c \u0111\u01b0\u1eddng trung b\u00ecnh n\u00f3 \u0111\u1ec1u c\u00f3 nh\u1eefng ph\u1ea3n \u1ee9ng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n Khi MA 9 ng\u00e0y c\u1eaft l\u00ean MA20 ng\u00e0y, n\u00f3 th\u1ec3 hi\u1ec7n r\u1eb1ng gi\u00e1 trung b\u00ecnh trong 9 ng\u00e0y qua \u0111\u00e3 cao h\u01a1n gi\u00e1 trung b\u00ecnh c\u1ee7a 20 ng\u00e0y; th\u1ec3 hi\u1ec7n gi\u00e1 \u0111ang \u0111i l\u00ean. C\u00f3 ngh\u0129a l\u00e0 b\u00ean mua d\u1ea1o g\u1ea7n \u0111\u00e2y c\u00f3 v\u1ebb ch\u1ea5p nh\u1eadn mua gi\u00e1 cao h\u01a1n. \u0110\u00e2y l\u00e0 giao c\u1eaft v\u00e0ng, s\u1ebd k\u00edch th\u00edch c\u00e1c n\u0111t mua v\u00e0o th\u00eam; v\u00e0 c\u00e1c n\u0111t \u0111ang n\u1eafm gi\u1eef kh\u00f4ng mu\u1ed1n b\u00e1n ra. \u0110\u00f3 l\u00e0 \u00fd ngh\u0129a c\u1ee7a \u0111\u01b0\u1eddng MACD \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi hai \u0111\u01b0\u1eddng MA (ng\u1eafn v\u00e0 d\u00e0i ng\u00e0y).<\/p>\n Ng\u01b0\u1ee3c l\u1ea1i v\u1edbi giao c\u1eaft v\u00e0ng l\u00e0 giao c\u1eaft t\u1eed th\u1ea7n<\/strong> khi \u0111\u01b0\u1eddng ng\u1eafn ng\u00e0y c\u1eaft xu\u1ed1ng d\u01b0\u1eddng d\u00e0i ng\u00e0y. N\u00f3 th\u1ec3 hi\u1ec7n r\u1eb1ng xu h\u01b0\u1edbng t\u0103ng tr\u01b0\u1edbc \u0111\u00f3 \u0111ang y\u1ebfu \u0111i; phe b\u00e1n \u0111ang ng\u00e0y c\u00e0ng ch\u1ea5p nh\u1eadn gi\u00e1 b\u00e1n th\u1ea5p h\u01a1n. Khi n\u00f3 c\u1eaft xu\u1ed1ng s\u1ebd k\u00edch ho\u1ea1t r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi b\u00e1n ra. B\u1ea1n c\u1ee9 t\u01b0\u1edfng t\u01b0\u1ee3ng nh\u01b0 \u0111\u00e8n \u0111\u1ecf \u0111\u00e8n xanh \u1edf ng\u00e3 t\u01b0, c\u00f3 nh\u1eefng d\u1ea5u hi\u1ec7u s\u1ebd k\u00edch th\u00edch ng\u01b0\u1eddi ta h\u00e0nh \u0111\u1ed9ng b\u00e1n hay mua; ng\u01b0\u1eddi c\u00e0ng nhi\u1ec1u ti\u1ec1n l\u1ea1i c\u00e0ng tin v\u00e0 h\u00e0nh \u0111\u1ed9ng quy\u1ebft li\u1ec7t v\u1edbi c\u00e1c t\u00edn hi\u1ec7u.<\/p>\n B\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh s\u1ed1 ng\u00e0y \u0111\u1ec3 c\u00f3 m\u1ed9t MA ph\u00f9 h\u1ee3p. V\u00e0 b\u1ea1n hi\u1ec3u r\u1eb1ng nh\u1eefng ng\u01b0\u1eddi mua trong x ng\u00e0y qua \u0111ang l\u1eddi hay \u0111ang l\u1ed7 v\u00e0 khi l\u1eddi hay l\u1ed7 h\u1ecd s\u1ebd c\u00f3 nh\u1eefng h\u00e0nh \u0111\u1ed9ng \u0111i\u1ec3n h\u00ecnh g\u00ec. T\u1ea5t nhi\u00ean \u0111\u00e2y l\u00e0 gi\u00e1 trung b\u00ecnh; s\u1ebd c\u00f3 nhi\u1ec1u ng\u01b0\u1eddi mua r\u1ea5t cao c\u0169ng nh\u01b0 c\u00f3 ng\u01b0\u1eddi mua r\u1ea5t th\u1ea5p; ta kh\u00f4ng th\u1ec3 th\u1ed1ng k\u00ea c\u00e1c t\u00ecnh hu\u1ed1ng \u0111i\u1ec1n h\u1ec9nh; ta ch\u1ec9 c\u1ea7n bi\u1ebft r\u1eb1ng gi\u00e1 trung b\u00ecnh m\u00e0 ng\u01b0\u1eddi mua \u0111ang n\u1eafm gi\u1eef trong x ng\u00e0y qua.<\/p>\n H\u00e3y suy ngh\u0129 th\u1ebf n\u00e0y, khi gi\u00e1 cao c\u00e0ng xa \u0111\u01b0\u1eddng MA c\u00f3 ph\u1ea3i n\u00f3 s\u1ebd k\u00edch th\u00edch ng\u01b0\u1eddi ta b\u00e1n ra kh\u00f4ng? Ch\u00ednh v\u00ec v\u1eady kho\u1ea3ng c\u00e1c gi\u1eefa gi\u00e1 v\u00e0 \u0111\u01b0\u1eddng MA c\u00e0ng cao khi mua s\u1ebd ng\u00e0y c\u00e0ng r\u1ee7i ro; phe mua t\u1ea1i gi\u00e1 trung b\u00ecnh \u0111ang gia t\u0103ng ham mu\u1ed1n ch\u1ed1t l\u1eddi. Theo th\u1eddi gian ki\u1ec3u g\u00ec gi\u00e1 c\u0169ng s\u1ebd k\u00e9o l\u1ea1i v\u1ec1 \u0111\u01b0\u1eddng MA; \u0111\u01b0\u1eddng MA gi\u1ed1ng nh\u01b0 th\u1ecfi nam ch\u00e2m k\u00e9o gi\u00e1. N\u1ebfu mua ch\u00fang ta ph\u1ea3i mua \u1edf s\u00e1t \u0111\u01b0\u1eddng MA nh\u01b0 v\u1eady ch\u00fang ta c\u00f3 \u0111\u01b0\u1ee3c gi\u00e1 trung b\u00ecnh c\u1ee7a x ng\u00e0y qua.<\/p>\n C\u00e1c t\u00edn hi\u1ec7u mua b\u00e1n th\u00f4ng qua quan h\u1ec7 gi\u1eefa \u0111\u01b0\u1eddng gi\u00e1 v\u00e0 \u0111\u01b0\u1eddng MA<\/span><\/strong><\/p>\n Quy t\u1eafc Granville s\u1ed1 1: T\u00edn hi\u1ec7u mua m\u1ea1nh<\/strong><\/p>\n Khi gi\u00e1 c\u1eaft m\u1ea1nh \u0111\u01b0\u1eddng trung b\u00ecnh \u0111\u1ed9ng t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean<\/strong> khi \u0111\u01b0\u1eddng trung b\u00ecnh \u0111\u1ed9ng \u0111\u00e3 \u0111i xu\u1ed1ng m\u1ed9t th\u1eddi gian d\u00e0i<\/strong> r\u1ed3i ch\u1eefng l\u1ea1i \u0111i ngang<\/strong> th\u1eadm ch\u00ed t\u0103ng l\u00ean m\u1ed9t ch\u00fat.<\/p>\n Hi\u1ec3u b\u1ea3n ch\u1ea5t c\u1ee7a MA ta s\u1ebd d\u1ec5 d\u00e0ng gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c. Khi MA d\u1ed1c xu\u00f4ng n\u00f3 c\u00f3 ngh\u0129a l\u00e0 gi\u00e1 trung b\u00ecnh \u0111ang ng\u00e0y c\u00e0ng th\u1ea5p h\u01a1n; phe b\u00e1n \u0111ang ng\u00e0y c\u00e0ng ch\u1ea5p nh\u1eadn b\u00e1n v\u1edbi gi\u00e1 th\u1ea5p h\u01a1n trong khi phe mua ch\u01b0a s\u1eb5n s\u00e0ng mua. Khi MA \u0111i ngang c\u00f3 ngh\u0129a l\u00e0 gi\u00e1 gi\u1ea3m \u0111\u00e3 ch\u1eefng l\u1ea1i; gi\u00e1 \u0111ang t\u00ecm th\u1ea5y \u0111i\u1ec3m c\u00e2n b\u1eb1ng. Khi gi\u00e1 n\u1eb1m tr\u00ean \u0111\u01b0\u1eddng MA n\u00f3 th\u1ec3 hi\u1ec7n s\u1ef1 c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o khi ng\u01b0\u1eddi mua trung b\u00ecnh trong x ng\u00e0y qua \u0111\u00e3 h\u00f2a v\u1ed1n thay v\u00ec l\u1ed7. Phe mua \u0111\u00e3 th\u1eafng th\u1ebf tr\u1edf l\u1ea1i v\u00e0 phe b\u00e1n ho\u1eb7c \u0111\u00e3 b\u00e1n h\u1ebft ho\u1eb7c kh\u00f4ng c\u00f2n mu\u1ed1n b\u00e1n gi\u00e1 th\u1ea5p h\u01a1n.<\/p>\n Ph\u00eda tr\u00ean l\u00e0 v\u00ed d\u1ee5 cho c\u1ed5 phi\u1ebfu CTD (\u0111\u1ed3 th\u1ecb ng\u00e0y). \u0110\u01b0\u1eddng m\u00e0u \u0111\u1ecf l\u00e0 MA20 v\u00e0 m\u00e0u xanh l\u00e0 \u0111\u01b0\u1eddng gi\u00e1. Ta th\u1ea5y khi gi\u00e1 xuy\u00ean qua \u0111\u01b0\u1eddng MA n\u00f3 c\u00f3 xu h\u01b0\u1edbng \u0111i l\u00ean ti\u1ebfp. Ng\u01b0\u1ee3c l\u1ea1i khi gi\u00e1 c\u1eaft xu\u1ed1ng \u0111\u01b0\u1eddng MA n\u00f3 gi\u1ea3m m\u1ea1nh. MA c\u0169ng l\u00e0 \u0111\u01b0\u1eddng h\u1ed7 tr\u1ee3\/kh\u00e1ng c\u1ef1 khi gi\u00e1 t\u1eeb tr\u00ean xu\u1ed1ng ch\u1ea1m \u0111i\u1ec3m n\u00e0y c\u00f3 xu h\u01b0\u1edbng b\u1eadt l\u00ean v\u00e0 khi t\u1eeb d\u01b0\u1edbi l\u00ean n\u00f3 c\u00f3 xu h\u01b0\u1edbng b\u1eadt xu\u1ed1ng.<\/p>\n Quy t\u1eafc Graville s\u1ed1 2:<\/strong><\/p>\n Khi gi\u00e1 \u0111\u00e3 \u1edf tr\u00ean \u0111\u01b0\u1eddng MA v\u00e0 MA \u0111ang h\u01b0\u1edbng l\u00ean. Gi\u00e1 quay tr\u1edf l\u1ea1i g\u1ea7n MA nh\u01b0ng kh\u00f4ng ch\u1ea1m v\u00e0o MA m\u00e0 b\u1eadt l\u00ean \u0111i ti\u1ebfp. \u0110\u00e2y l\u00e0 l\u00fac mua nh\u01b0ng \u1edf m\u1ee9c b\u00ecnh th\u01b0\u1eddng. N\u00f3 l\u00e0 \u0111i\u1ec3m v\u00e0o l\u1ec7nh khi b\u1ea1n kh\u00f4ng mua \u0111\u01b0\u1ee3c t\u1ea1i \u0111i\u1ec3m quy t\u1eafc s\u1ed1 1.<\/p>\n Quy t\u1eafc Graville s\u1ed1 3:<\/strong><\/p>\n Khi \u0111\u01b0\u1eddng MA \u0111ang d\u1ed1c l\u00ean; gi\u00e1 \u0111i ngang c\u1eaft t\u1eeb tr\u00e1i qua ph\u1ea3i qua MA. Khi MA d\u1ed1c l\u00ean m\u00e0 gi\u00e1 \u0111i ngang th\u00ec kh\u00f4ng s\u1edbm th\u00ec mu\u1ed9n gi\u00e1 c\u0169ng s\u1ebd ti\u1ebfn t\u1edbi MA t\u1eeb tr\u00e1i sang ph\u1ea3i m\u1eb7c d\u00f9 kh\u00f4ng gi\u1ea3m nhi\u1ec1u. \u0110\u00e2y l\u00e0 giao c\u1eaft t\u1eed th\u1ea7n gi\u1ea3; kh\u1ea3 n\u0103ng khi xuy\u00ean qua MA n\u00f3 se t\u0103ng tr\u1edf l\u1ea1i l\u00ean tr\u00ean MA.<\/p>\n Quy t\u1eafc Graville s\u1ed1 4:<\/strong><\/p>\n \u0110\u01b0\u1eddng MA \u0111ang d\u1ed1c xu\u1ed1ng, gi\u00e1 \u0111ang ng\u00e0y c\u00e0ng c\u00e1ch xa \u0111\u01b0\u1eddng MA nh\u01b0ng \u1edf ph\u00eda d\u01b0\u1edbi. Khi gi\u00e1 \u0111\u1ed5i h\u01b0\u1edbng v\u1ec1 ph\u00eda MA th\u00ec \u0111\u00f3 l\u00e0 \u0111i\u1ec3m Mua. \u0110i\u1ec1u n\u00e0y c\u0169ng hi\u1ec3u t\u01b0\u01a1ng t\u1ef1 nh\u01b0 t\u00ecnh hu\u1ed1ng khi gi\u00e1 c\u00e1ch qu\u00e1 xa MA \u1edf ph\u00eda tr\u00ean n\u00f3 c\u0169ng s\u1ebd c\u00f3 xu h\u01b0\u1edbng gi\u1ea3m v\u1ec1 MA. \u0110\u00f3 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t pha ph\u1ee5c h\u1ed3i ng\u1eafn h\u1ea1n ho\u1eb7c c\u0169ng c\u00f3 th\u1ec3 l\u00e0 c\u00fa \u0111\u1ed5i chi\u1ec1u t\u1eeb xu h\u01b0\u1edbng gi\u1ea3m sang xu h\u01b0\u1edbng t\u0103ng.<\/p>\n C\u00e2u h\u1ecfi l\u00e0 khi gi\u00e1 ph\u00eda d\u01b0\u1edbi MA bao nhi\u00eau th\u00ec b\u1ecb g\u1ecdi l\u00e0 b\u1ea5t h\u1ee3p l\u00fd? R\u00f5 r\u00e0ng khi gi\u00e1 c\u00e0ng xa MA n\u00f3 c\u00e0ng th\u1ec3 hi\u1ec7n r\u1eb1ng c\u00e1c phi\u00ean c\u00e0ng v\u1ec1 g\u1ea7n \u0111\u00e2y gi\u00e1 c\u00e0ng gi\u1ea3m m\u1ea1nh. Gi\u00e1 gi\u1ea3m m\u1ea1nh n\u00e0y l\u00e0 do \u0111\u00e2u? Li\u1ec7u c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t tin b\u1ea5t l\u1ee3i n\u00e0o \u0111\u00f3 \u0111\u00e3 k\u00edch ho\u1ea1t m\u1ed9t s\u1ef1 b\u00e1n t\u1ed1ng b\u00e1n th\u00e1o c\u1ee7a ng\u01b0\u1eddi c\u1ea7m h\u00e0ng? Kho\u1ea3ng c\u00e1ch n\u00e0y th\u01b0\u1eddng \u00edt nh\u1ea5t ph\u1ea3i l\u00e0 20%. N\u00f3 th\u1ec3 hi\u1ec7n r\u1eb1ng b\u1ea1n \u0111\u00e3 mua \u0111\u01b0\u1ee3c gi\u00e1 th\u1ea5p h\u01a1n 20% so v\u1edbi gi\u00e1 trung b\u00ecnh m\u00e0 ng\u01b0\u1eddi mua mua \u0111\u01b0\u1ee3c trong x ng\u00e0y qua.<\/p>\n \u0110\u01b0\u1eddng gi\u00e1 b\u1ea3n ch\u1ea5t n\u00f3 l\u00e0 MA1; sau \u0111\u00f3 ta c\u00f3 MA9, MA20, MA50, MA150 v\u00e0 MA200. Trong m\u1ed9t xu h\u01b0\u1edbng t\u0103ng b\u1ec1n v\u1eefng c\u00e1c \u0111\u01b0\u1eddng MA s\u1ebd s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 l\u00ean tr\u00ean t\u1eeb d\u00e0i l\u00ean ng\u1eafn. T\u01b0\u01a1ng t\u1ef1 trong m\u1ed9t xu h\u01b0\u1edbng gi\u1ea3m b\u1ec1n v\u1eefng c\u00e1c \u0111\u01b0\u1eddng c\u0169ng x\u1ebfp ch\u1ed3ng l\u00ean nhau t\u1eeb d\u00e0i xu\u1ed1ng ng\u1eafn.<\/p>\n \u0110\u1ed3 th\u1ecb n\u1ebfn<\/strong><\/p>\n N\u1ebfn 1,2,3 th\u1ec3 hi\u1ec7n m\u1ed1i t\u01b0\u01a1ng quan gi\u1eefa th\u00e2n n\u1ebfn v\u00e0 \u0111\u1ed3 d\u00e0i c\u00e2y n\u1ebfn<\/em><\/strong><\/p>\n N\u1ebfn 1: C\u00e2y n\u1ebfn t\u0103ng gi\u00e1 l\u01b0\u1ee1ng l\u1ef1 khi gi\u00e1 gi\u1eb1ng co nhau nh\u01b0ng cu\u1ed1i c\u00f9ng gi\u00e1 \u0111\u00f3ng c\u1eeda l\u1ea1i ch\u1ec9 cao h\u01a1n gi\u00e1 m\u1edf c\u1eeda m\u1ed9t ch\u00fat.<\/p>\n N\u1ebfn 2: C\u00e2y n\u1ebfn t\u0103ng gi\u00e1 b\u00ecnh th\u01b0\u1eddng khi m\u00e0 t\u00f3c v\u00e0 r\u00e2u ng\u1eafn. Hai b\u00ean gi\u1eb1ng co nhau nh\u01b0ng phe mua th\u1eafng th\u1ebf khi gi\u00e1 \u0111\u00f3ng c\u1eeda cao h\u01a1n nhi\u1ec1u gi\u00e1 m\u1edf c\u1eeda.<\/p>\n N\u1ebfn 3: C\u00e2y n\u1ebfn t\u0103ng gi\u00e1 ch\u1eafc ch\u1eafn khi gi\u00e1 \u0111\u00f3ng c\u1eeda c\u00e1ch xa gi\u00e1 m\u1edf ch\u01b0a. T\u00f3c ng\u1eafn th\u1ec3 hi\u1ec7n phe mua ch\u1ec9 ch\u1ecbu thua m\u1ed9t ch\u00fat so v\u1edbi phe b\u00e1n<\/p>\n N\u1ebfn 4,5,6 th\u00e2n n\u1ebfn ng\u1eafn so v\u1edbi c\u00e2y n\u1ebfn th\u1ec3 hi\u1ec7n s\u1ef1 l\u01b0\u1ee1ng l\u1ef1.<\/em><\/strong><\/p>\n N\u1ebfn 4: Th\u1ec3 hi\u1ec7n s\u1ef1 l\u01b0\u1ee1ng l\u1ef1 b\u00ecnh th\u01b0\u1eddng khi r\u00e2u t\u00f3c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau<\/p>\n N\u1ebfn 5: L\u01b0\u1ee1ng l\u1ef1 t\u00edch c\u1ef1c khi th\u00e2n n\u1ebfn n\u1eb1m ph\u00eda tr\u00ean c\u1ee7a c\u00e2y n\u1ebfn; r\u00e2u d\u00e0i h\u01a1n t\u00f3c<\/p>\n N\u1ebfn 6: L\u01b0\u1ee1ng l\u1ef1 ti\u00eau c\u1ef1c khi t\u00f3c m\u1ecdc d\u00e0i h\u01a1n nhi\u1ec1u so v\u1edbi r\u00e2u th\u1ec3 hi\u1ec7n phe mua \u0111\u00e3 c\u1ed1 g\u1eafng k\u00e9o l\u00ean gi\u00e1 cao nh\u01b0ng sau \u0111\u00f3 b\u1ecb phe b\u00e1n \u0111\u00e8 b\u1eb9p.<\/p>\n T\u1eeb 7 t\u1edbi 12 l\u00e0 c\u00e1c c\u00e2y n\u1ebfn h\u00ecnh d\u00e1ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 m\u00e0u \u0111\u1ecf th\u1ec3 hi\u1ec7n gi\u00e1 m\u1edf c\u1eeda cao h\u01a1n gi\u00e1 \u0111\u00f3ng c\u1eeda. N\u00f3 th\u1ec3 hi\u1ec7n phe mua t\u1ea5n c\u00f4ng \u0111\u1ea7u phi\u00ean nh\u01b0ng sau \u0111\u00f3 th\u1ea5t b\u1ea1i. C\u00e1c c\u00e2y n\u1ebfn c\u00f3 th\u00e2n n\u1ebfn b\u1eb1ng 1\/3 so v\u1edbi c\u00e2y n\u1ebfn \u0111\u1ec1u th\u1ec3 hi\u1ec7n s\u1ef1 l\u01b0\u1ee1ng l\u1ef1. C\u00e1c c\u00e2y n\u1ebfn l\u01b0\u1ee1ng l\u1ef1 th\u1ec3 hi\u1ec7n s\u1ee9c m\u1ea1nh \u0111ang y\u1ebfu \u0111i; n\u1ebfu \u0111ang trong xu h\u01b0\u1edbng t\u0103ng th\u00ec s\u1ee9c t\u0103ng y\u1ebfu \u0111i v\u00e0 n\u1ebfu \u0111ang xu h\u01b0\u1edbng gi\u1ea3m th\u00ec l\u1ef1c gi\u1ea3m y\u1ebfu \u0111i. C\u00e1c c\u00e2y n\u1ebfn ch\u1eafc ch\u1eafn v\u1edbi th\u00e2n d\u00e0i h\u01a1n 1\/3 c\u00e2y n\u1ebfn th\u1ec3 hi\u1ec7n s\u1ef1 ti\u1ebfp di\u1ec5n c\u1ee7a xu h\u01b0\u1edbng.<\/p>\n<\/p>\n![\"\"](\"https:\/\/chienluocsong.com\/wp-content\/uploads\/Vix-1024x324.jpg\")
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