{"id":538256,"date":"2022-10-21T13:00:50","date_gmt":"2022-10-21T11:00:50","guid":{"rendered":"https:\/\/ftmo.com\/?p=538256"},"modified":"2023-06-22T12:41:24","modified_gmt":"2023-06-22T10:41:24","slug":"technicka-analyza-bollinger-bands-jako-kombinace-trendu-a-volatility","status":"publish","type":"post","link":"https:\/\/ftmo.com\/cs\/technicka-analyza-bollinger-bands-jako-kombinace-trendu-a-volatility\/","title":{"rendered":"Technick\u00e1 anal\u00fdza \u2013 Bollinger Bands jako kombinace trendu a volatility"},"content":{"rendered":"

Bollingerova p\u00e1sma (Bollinger Bands) jsou jedn\u00edm z nejzn\u00e1m\u011bj\u0161\u00edch a nejobl\u00edben\u011bj\u0161\u00edch indik\u00e1tor\u016f, kter\u00fd sleduje jak trendy, tak i volatilitu investi\u010dn\u00edho instrumentu. Pro\u010d je pro investory tak zaj\u00edmav\u00fd?<\/em><\/p>\n

Bollinger Bands jsou jedn\u00edm z indik\u00e1tor\u016f, kter\u00e9 jsou zalo\u017een\u00e9 na p\u00e1smech, resp. ob\u00e1lk\u00e1ch (my\u0161leno jako geometrick\u00fd tvar, ne po\u0161tovn\u00ed ob\u00e1lka), kter\u00e9 vyzna\u010duj\u00ed relativn\u00ed vyj\u00e1d\u0159en\u00ed maxim\u00e1ln\u00ed a minim\u00e1ln\u00ed ceny instrumentu. V technick\u00e9 anal\u00fdze se podobn\u00fdch p\u0159\u00edstup\u016f, kdy p\u00e1sma vyzna\u010duj\u00ed horn\u00ed a doln\u00ed cenov\u00e1 rozp\u011bt\u00ed, vyskytuje n\u011bkolik, p\u0159i\u010dem\u017e z\u00e1kladem pro v\u00fdpo\u010det p\u00e1sem mohou b\u00fdt maxim\u00e1ln\u00ed a minim\u00e1ln\u00ed ceny (Donchian Bands), cykly (Hurst Bands), p\u0159\u00edpadn\u011b procenta nad\/pod klouzav\u00fdm pr\u016fm\u011brem (Percentage Bands) nebo cenou apod.<\/p>\n

Bollinger Bands sice nepat\u0159il mezi prvn\u00ed takov\u00e9 indik\u00e1tory, ale ur\u010dit\u011b pat\u0159\u00ed mezi nejzn\u00e1m\u011bj\u0161\u00ed indik\u00e1tory vyu\u017e\u00edvaj\u00edc\u00ed p\u00e1sem k\u00a0identifikov\u00e1n\u00ed p\u0159eprodanosti nebo p\u0159ekoupenosti investi\u010dn\u00edho instrumentu. Tento indik\u00e1tor vyvinul technick\u00fd obchodn\u00edk John Bollinger v\u00a0osmdes\u00e1t\u00fdch letech dvac\u00e1t\u00e9ho stolet\u00ed.<\/p>\n

Trend a volatilita<\/h2>\n

Nejde o klasick\u00fd trendov\u00fd indik\u00e1tor, ale sp\u00ed\u0161e o indik\u00e1tor, kter\u00fd p\u0159i stanoven\u00ed p\u00e1sem a jejich vzd\u00e1lenosti vyu\u017e\u00edv\u00e1 sm\u011brodatnou odchylku jako m\u011b\u0159\u00edtko volatility investi\u010dn\u00edho n\u00e1stroje. Jak s\u00e1m Bollinger tvrd\u00ed, volatilita je dynamick\u00e1 veli\u010dina, kter\u00e1 se v\u00a0\u010dase m\u011bn\u00ed a pr\u00e1v\u011b nav\u00e1z\u00e1n\u00ed tohoto indik\u00e1toru na volatilitu jej odli\u0161uje od ostatn\u00edch, \u010dist\u011b trendov\u00fdch indik\u00e1tor\u016f.<\/p>\n

Pro v\u00fdpo\u010det obou p\u00e1sem se pou\u017e\u00edv\u00e1 vzorec:<\/strong><\/p>\n

Horn\u00ed p\u00e1smo = MA(TP,n) + m * \u03b4[TP,n]<\/p>\n

Spodn\u00ed p\u00e1smo = MA(TP,n) \u2013 m * \u03b4[TP,n]<\/p>\n

MA<\/em> – klouzav\u00fd pr\u016fm\u011br<\/p>\n

TP<\/em> (typick\u00e1 cena) – (high + low + close) \/ 3<\/p>\n

n<\/em> – po\u010det period v\u00a0klouzav\u00e9m pr\u016fm\u011bru (v\u011bt\u0161inou 20)<\/p>\n

m<\/em> \u2013 po\u010det sm\u011brodatn\u00fdch odchylek (v\u011bt\u0161inou 2)<\/p>\n

\u03b4 [TP, n]<\/em> \u2013 sm\u011brodatn\u00e1 odchylka za posledn\u00edch n obdob\u00ed TP<\/p>\n

Na grafu se pak Bollinger Bands zobrazuje jako t\u0159i linie. Ve st\u0159edu je klasick\u00fd klouzav\u00fd pr\u016fm\u011br s\u00a0periodou 20 a dv\u011b p\u00e1sma, jejich\u017e vzd\u00e1lenost nen\u00ed (na rozd\u00edl od v\u011bt\u0161iny ostatn\u00edch podobn\u00fdch indik\u00e1tor\u016f) stejn\u00e1, ale je d\u00e1na dvojn\u00e1sobkem 20denn\u00ed sm\u011brodatn\u00e9 odchylky od st\u0159edn\u00ed \u010d\u00e1ry.<\/p>\n

Kdy\u017e jsou p\u00e1sma daleko od sebe, znamen\u00e1 to, \u017ee volatilita na trhu je velk\u00e1, trend je siln\u00fd a m\u016f\u017ee doj\u00edt ke korekci, kdy\u017e jsou naopak p\u00e1sma bl\u00edzko u sebe, volatilita je n\u00edzk\u00e1 a m\u016f\u017ee se vytvo\u0159it nov\u00fd trend. Jednotliv\u00e9 hodnoty, jako je po\u010det period nebo n\u00e1sobek sm\u011brodatn\u00e9 odchylky, se mohou m\u011bnit, pro r\u016fzn\u00e9 instrumenty mohou b\u00fdt vhodn\u011bj\u0161\u00ed jin\u00e9 hodnoty. Je ale pot\u0159eba br\u00e1t v\u00a0\u00favahu, \u017ee kdy\u017e pou\u017eijeme MA s\u00a0del\u0161\u00ed periodou, je pot\u0159eba tak\u00e9 zv\u00fd\u0161it n\u00e1sobek sm\u011brodatn\u00e9 odchylky. P\u0159i MA 50 je to nejm\u00e9n\u011b 2,1, u krat\u0161\u00ed periody je to m\u00e9n\u011b ne\u017e 2.<\/p>\n

\"\"<\/p>\n

Na co si d\u00e1t pozor<\/h2>\n

Mnoho obchodn\u00edk\u016f d\u011bl\u00e1 chybu, kdy\u017e pova\u017euje dosa\u017een\u00ed horn\u00edho nebo spodn\u00edho p\u00e1sma cenou instrumentu za prodejn\u00ed, resp. n\u00e1kupn\u00ed sign\u00e1l. To v\u0161ak nen\u00ed pravda. P\u0159\u00edmo na webu v\u011bnovan\u00e9mu tomuto indik\u00e1toru najdete 22 pravidel, kter\u00e1 byla podle Bollingera sestavena v\u00a0reakci na ot\u00e1zky a dlouholet\u00e9 zku\u0161enosti obchodn\u00edk\u016f a m\u011bly by slou\u017eit jako v\u00fdchoz\u00ed bod pro ty, kte\u0159\u00ed s\u00a0t\u00edmto indik\u00e1torem za\u010d\u00ednaj\u00ed. Mezi ty nejd\u016fle\u017eit\u011bj\u0161\u00ed pat\u0159\u00ed upozorn\u011bn\u00ed na to, \u017ee horn\u00ed p\u00e1smo, resp. jeho dotek nebo protnut\u00ed, ur\u010dit\u011b nen\u00ed samo o sob\u011b prodejn\u00edm sign\u00e1lem a dotek nebo protnut\u00ed spodn\u00edho p\u00e1sma nen\u00ed samo o sob\u011b sign\u00e1lem pro otev\u0159en\u00ed dlouh\u00e9 pozice. V\u00a0siln\u00fdch trendech cena b\u011b\u017en\u011b n\u011bkolikr\u00e1t po sob\u011b p\u0159ekon\u00e1 vrchn\u00ed nebo spodn\u00ed p\u00e1smo, p\u0159i\u010dem\u017e uzav\u0159en\u00ed nad horn\u00edm p\u00e1smem nebo pod spodn\u00edm p\u00e1smem by m\u011blo b\u00fdt pova\u017eov\u00e1no jako znak pokra\u010dov\u00e1n\u00ed trendu.<\/p>\n

Vzhledem k tomu, \u017ee obdob\u00ed s n\u00edzkou volatilitou st\u0159\u00eddaj\u00ed obdob\u00ed s vy\u0161\u0161\u00ed volatilitou, je d\u016fle\u017eit\u00e9 sledovat tento indik\u00e1tor zejm\u00e9na v dob\u011b, kdy se prostor mezi p\u00e1smy zu\u017euje (tzv squeeze). To je pr\u00e1v\u011b obdob\u00ed, kdy volatilita kles\u00e1 a je pravd\u011bpodobn\u00e9, \u017ee bude n\u00e1sledovat v\u00fdrazn\u011bj\u0161\u00ed trendov\u00fd pohyb jedn\u00edm nebo druh\u00fdm sm\u011brem. Pr\u00e1v\u011b protnut\u00ed n\u011bkter\u00e9ho z p\u00e1sem pak m\u016f\u017ee signalizovat za\u010d\u00e1tek nov\u00e9ho trendu.<\/p>\n

Bollinger Bands nejl\u00e9pe funguje jako dopln\u011bk, bu\u010fto k\u00a0samotn\u00e9 price action, kdy m\u016f\u017ee obchodn\u00edkovi pom\u00e1hat p\u0159i rozhodov\u00e1n\u00ed o p\u0159esn\u011bj\u0161\u00edch vstupech (s\u00e1m Bollinger uv\u00e1d\u00ed nap\u0159\u00edklad formace dvojit\u00fd vrchol nebo dvojit\u00e9 dno) nebo k\u00a0jin\u00e9mu indik\u00e1toru. Z\u00e1kladem kombinace s\u00a0jin\u00fdm indik\u00e1torem je to, aby tyto dva n\u00e1stroje nebyly korelov\u00e1ny a aby vych\u00e1zely z\u00a0jin\u00e9ho typu dat. Podle Bollingera to mohou b\u00fdt nap\u0159\u00edklad MACD, On-balance Volume, nebo RSI.<\/p>\n

Bollinger Bands m\u016f\u017ee b\u00fdt dobr\u00fdm pomocn\u00edkem pro tradery na r\u016fzn\u00fdch \u010dasov\u00fdch r\u00e1mc\u00edch a u r\u016fzn\u00fdch investi\u010dn\u00edch instrument\u016f. Podobn\u011b jako u jin\u00fdch podobn\u00fdch indik\u00e1tor\u016f v\u0161ak nejde o samospasn\u00fd n\u00e1stroj, se kter\u00fdm dok\u00e1\u017ee ka\u017ed\u00fd trader divy.<\/p>\n","protected":false},"excerpt":{"rendered":"

Bollingerova p\u00e1sma (Bollinger Bands) jsou jedn\u00edm z nejzn\u00e1m\u011bj\u0161\u00edch a nejobl\u00edben\u011bj\u0161\u00edch indik\u00e1tor\u016f, kter\u00fd sleduje jak trendy, tak i volatilitu investi\u010dn\u00edho instrumentu. Pro\u010d je pro investory tak zaj\u00edmav\u00fd? Bollinger Bands jsou jedn\u00edm z indik\u00e1tor\u016f, kter\u00e9 jsou zalo\u017een\u00e9 na p\u00e1smech, resp. ob\u00e1lk\u00e1ch (my\u0161leno jako geometrick\u00fd tvar, ne po\u0161tovn\u00ed ob\u00e1lka), kter\u00e9 vyzna\u010duj\u00ed relativn\u00ed vyj\u00e1d\u0159en\u00ed maxim\u00e1ln\u00ed a minim\u00e1ln\u00ed ceny instrumentu. […]<\/p>\n","protected":false},"author":44,"featured_media":538341,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[88911],"tags":[],"class_list":["post-538256","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-obchodni-systemy"],"acf":[],"yoast_head":"\nTechnick\u00e1 anal\u00fdza \u2013 Bollinger Bands jako kombinace trendu a volatility | FTMO<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ftmo.com\/cs\/technicka-analyza-bollinger-bands-jako-kombinace-trendu-a-volatility\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Technick\u00e1 anal\u00fdza \u2013 Bollinger Bands jako kombinace trendu a volatility\" \/>\n<meta property=\"og:description\" content=\"Bollingerova p\u00e1sma (Bollinger Bands) jsou jedn\u00edm z nejzn\u00e1m\u011bj\u0161\u00edch a nejobl\u00edben\u011bj\u0161\u00edch indik\u00e1tor\u016f, kter\u00fd sleduje jak trendy, tak i volatilitu investi\u010dn\u00edho instrumentu. 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Pro\u010d je pro investory tak zaj\u00edmav\u00fd? Bollinger Bands jsou jedn\u00edm z indik\u00e1tor\u016f, kter\u00e9 jsou zalo\u017een\u00e9 na p\u00e1smech, resp. ob\u00e1lk\u00e1ch (my\u0161leno jako geometrick\u00fd tvar, ne po\u0161tovn\u00ed ob\u00e1lka), kter\u00e9 vyzna\u010duj\u00ed relativn\u00ed vyj\u00e1d\u0159en\u00ed maxim\u00e1ln\u00ed a minim\u00e1ln\u00ed ceny instrumentu. 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