/**
* jquery.mask.js
* @version: v1.14.16
* @author: Igor Escobar
*
* Created by Igor Escobar on 2012-03-10. Please report any bug at github.com/igorescobar/jQuery-Mask-Plugin
*
* Copyright (c) 2012 Igor Escobar http://igorescobar.com
*
* The MIT License (http://www.opensource.org/licenses/mit-license.php)
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/* jshint laxbreak: true */
/* jshint maxcomplexity:17 */
/* global define */
// UMD (Universal Module Definition) patterns for JavaScript modules that work everywhere.
// https://github.com/umdjs/umd/blob/master/templates/jqueryPlugin.js
(function (factory, jQuery, Zepto) {
if (typeof define === 'function' && define.amd) {
define(['jquery'], factory);
} else if (typeof exports === 'object' && typeof Meteor === 'undefined') {
module.exports = factory(require('jquery'));
} else {
factory(jQuery || Zepto);
}
}(function ($) {
'use strict';
var Mask = function (el, mask, options) {
var p = {
invalid: [],
getCaret: function () {
try {
var sel,
pos = 0,
ctrl = el.get(0),
dSel = document.selection,
cSelStart = ctrl.selectionStart;
// IE Support
if (dSel && navigator.appVersion.indexOf('MSIE 10') === -1) {
sel = dSel.createRange();
sel.moveStart('character', -p.val().length);
pos = sel.text.length;
}
// Firefox support
else if (cSelStart || cSelStart === '0') {
pos = cSelStart;
}
return pos;
} catch (e) {}
},
setCaret: function(pos) {
try {
if (el.is(':focus')) {
var range, ctrl = el.get(0);
// Firefox, WebKit, etc..
if (ctrl.setSelectionRange) {
ctrl.setSelectionRange(pos, pos);
} else { // IE
range = ctrl.createTextRange();
range.collapse(true);
range.moveEnd('character', pos);
range.moveStart('character', pos);
range.select();
}
}
} catch (e) {}
},
events: function() {
el
.on('keydown.mask', function(e) {
el.data('mask-keycode', e.keyCode || e.which);
el.data('mask-previus-value', el.val());
el.data('mask-previus-caret-pos', p.getCaret());
p.maskDigitPosMapOld = p.maskDigitPosMap;
})
.on($.jMaskGlobals.useInput ? 'input.mask' : 'keyup.mask', p.behaviour)
.on('paste.mask drop.mask', function() {
setTimeout(function() {
el.keydown().keyup();
}, 100);
})
.on('change.mask', function(){
el.data('changed', true);
})
.on('blur.mask', function(){
if (oldValue !== p.val() && !el.data('changed')) {
el.trigger('change');
}
el.data('changed', false);
})
// it's very important that this callback remains in this position
// otherwhise oldValue it's going to work buggy
.on('blur.mask', function() {
oldValue = p.val();
})
// select all text on focus
.on('focus.mask', function (e) {
if (options.selectOnFocus === true) {
$(e.target).select();
}
})
// clear the value if it not complete the mask
.on('focusout.mask', function() {
if (options.clearIfNotMatch && !regexMask.test(p.val())) {
p.val('');
}
});
},
getRegexMask: function() {
var maskChunks = [], translation, pattern, optional, recursive, oRecursive, r;
for (var i = 0; i < mask.length; i++) {
translation = jMask.translation[mask.charAt(i)];
if (translation) {
pattern = translation.pattern.toString().replace(/.{1}$|^.{1}/g, '');
optional = translation.optional;
recursive = translation.recursive;
if (recursive) {
maskChunks.push(mask.charAt(i));
oRecursive = {digit: mask.charAt(i), pattern: pattern};
} else {
maskChunks.push(!optional && !recursive ? pattern : (pattern + '?'));
}
} else {
maskChunks.push(mask.charAt(i).replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'));
}
}
r = maskChunks.join('');
if (oRecursive) {
r = r.replace(new RegExp('(' + oRecursive.digit + '(.*' + oRecursive.digit + ')?)'), '($1)?')
.replace(new RegExp(oRecursive.digit, 'g'), oRecursive.pattern);
}
return new RegExp(r);
},
destroyEvents: function() {
el.off(['input', 'keydown', 'keyup', 'paste', 'drop', 'blur', 'focusout', ''].join('.mask '));
},
val: function(v) {
var isInput = el.is('input'),
method = isInput ? 'val' : 'text',
r;
if (arguments.length > 0) {
if (el[method]() !== v) {
el[method](v);
}
r = el;
} else {
r = el[method]();
}
return r;
},
calculateCaretPosition: function(oldVal) {
var newVal = p.getMasked(),
caretPosNew = p.getCaret();
if (oldVal !== newVal) {
var caretPosOld = el.data('mask-previus-caret-pos') || 0,
newValL = newVal.length,
oldValL = oldVal.length,
maskDigitsBeforeCaret = 0,
maskDigitsAfterCaret = 0,
maskDigitsBeforeCaretAll = 0,
maskDigitsBeforeCaretAllOld = 0,
i = 0;
for (i = caretPosNew; i < newValL; i++) {
if (!p.maskDigitPosMap[i]) {
break;
}
maskDigitsAfterCaret++;
}
for (i = caretPosNew - 1; i >= 0; i--) {
if (!p.maskDigitPosMap[i]) {
break;
}
maskDigitsBeforeCaret++;
}
for (i = caretPosNew - 1; i >= 0; i--) {
if (p.maskDigitPosMap[i]) {
maskDigitsBeforeCaretAll++;
}
}
for (i = caretPosOld - 1; i >= 0; i--) {
if (p.maskDigitPosMapOld[i]) {
maskDigitsBeforeCaretAllOld++;
}
}
// if the cursor is at the end keep it there
if (caretPosNew > oldValL) {
caretPosNew = newValL * 10;
} else if (caretPosOld >= caretPosNew && caretPosOld !== oldValL) {
if (!p.maskDigitPosMapOld[caretPosNew]) {
var caretPos = caretPosNew;
caretPosNew -= maskDigitsBeforeCaretAllOld - maskDigitsBeforeCaretAll;
caretPosNew -= maskDigitsBeforeCaret;
if (p.maskDigitPosMap[caretPosNew]) {
caretPosNew = caretPos;
}
}
}
else if (caretPosNew > caretPosOld) {
caretPosNew += maskDigitsBeforeCaretAll - maskDigitsBeforeCaretAllOld;
caretPosNew += maskDigitsAfterCaret;
}
}
return caretPosNew;
},
behaviour: function(e) {
e = e || window.event;
p.invalid = [];
var keyCode = el.data('mask-keycode');
if ($.inArray(keyCode, jMask.byPassKeys) === -1) {
var newVal = p.getMasked(),
caretPos = p.getCaret(),
oldVal = el.data('mask-previus-value') || '';
// this is a compensation to devices/browsers that don't compensate
// caret positioning the right way
setTimeout(function() {
p.setCaret(p.calculateCaretPosition(oldVal));
}, $.jMaskGlobals.keyStrokeCompensation);
p.val(newVal);
p.setCaret(caretPos);
return p.callbacks(e);
}
},
getMasked: function(skipMaskChars, val) {
var buf = [],
value = val === undefined ? p.val() : val + '',
m = 0, maskLen = mask.length,
v = 0, valLen = value.length,
offset = 1, addMethod = 'push',
resetPos = -1,
maskDigitCount = 0,
maskDigitPosArr = [],
lastMaskChar,
check;
if (options.reverse) {
addMethod = 'unshift';
offset = -1;
lastMaskChar = 0;
m = maskLen - 1;
v = valLen - 1;
check = function () {
return m > -1 && v > -1;
};
} else {
lastMaskChar = maskLen - 1;
check = function () {
return m < maskLen && v < valLen;
};
}
var lastUntranslatedMaskChar;
while (check()) {
var maskDigit = mask.charAt(m),
valDigit = value.charAt(v),
translation = jMask.translation[maskDigit];
if (translation) {
if (valDigit.match(translation.pattern)) {
buf[addMethod](valDigit);
if (translation.recursive) {
if (resetPos === -1) {
resetPos = m;
} else if (m === lastMaskChar && m !== resetPos) {
m = resetPos - offset;
}
if (lastMaskChar === resetPos) {
m -= offset;
}
}
m += offset;
} else if (valDigit === lastUntranslatedMaskChar) {
// matched the last untranslated (raw) mask character that we encountered
// likely an insert offset the mask character from the last entry; fall
// through and only increment v
maskDigitCount--;
lastUntranslatedMaskChar = undefined;
} else if (translation.optional) {
m += offset;
v -= offset;
} else if (translation.fallback) {
buf[addMethod](translation.fallback);
m += offset;
v -= offset;
} else {
p.invalid.push({p: v, v: valDigit, e: translation.pattern});
}
v += offset;
} else {
if (!skipMaskChars) {
buf[addMethod](maskDigit);
}
if (valDigit === maskDigit) {
maskDigitPosArr.push(v);
v += offset;
} else {
lastUntranslatedMaskChar = maskDigit;
maskDigitPosArr.push(v + maskDigitCount);
maskDigitCount++;
}
m += offset;
}
}
var lastMaskCharDigit = mask.charAt(lastMaskChar);
if (maskLen === valLen + 1 && !jMask.translation[lastMaskCharDigit]) {
buf.push(lastMaskCharDigit);
}
var newVal = buf.join('');
p.mapMaskdigitPositions(newVal, maskDigitPosArr, valLen);
return newVal;
},
mapMaskdigitPositions: function(newVal, maskDigitPosArr, valLen) {
var maskDiff = options.reverse ? newVal.length - valLen : 0;
p.maskDigitPosMap = {};
for (var i = 0; i < maskDigitPosArr.length; i++) {
p.maskDigitPosMap[maskDigitPosArr[i] + maskDiff] = 1;
}
},
callbacks: function (e) {
var val = p.val(),
changed = val !== oldValue,
defaultArgs = [val, e, el, options],
callback = function(name, criteria, args) {
if (typeof options[name] === 'function' && criteria) {
options[name].apply(this, args);
}
};
callback('onChange', changed === true, defaultArgs);
callback('onKeyPress', changed === true, defaultArgs);
callback('onComplete', val.length === mask.length, defaultArgs);
callback('onInvalid', p.invalid.length > 0, [val, e, el, p.invalid, options]);
}
};
el = $(el);
var jMask = this, oldValue = p.val(), regexMask;
mask = typeof mask === 'function' ? mask(p.val(), undefined, el, options) : mask;
// public methods
jMask.mask = mask;
jMask.options = options;
jMask.remove = function() {
var caret = p.getCaret();
if (jMask.options.placeholder) {
el.removeAttr('placeholder');
}
if (el.data('mask-maxlength')) {
el.removeAttr('maxlength');
}
p.destroyEvents();
p.val(jMask.getCleanVal());
p.setCaret(caret);
return el;
};
// get value without mask
jMask.getCleanVal = function() {
return p.getMasked(true);
};
// get masked value without the value being in the input or element
jMask.getMaskedVal = function(val) {
return p.getMasked(false, val);
};
jMask.init = function(onlyMask) {
onlyMask = onlyMask || false;
options = options || {};
jMask.clearIfNotMatch = $.jMaskGlobals.clearIfNotMatch;
jMask.byPassKeys = $.jMaskGlobals.byPassKeys;
jMask.translation = $.extend({}, $.jMaskGlobals.translation, options.translation);
jMask = $.extend(true, {}, jMask, options);
regexMask = p.getRegexMask();
if (onlyMask) {
p.events();
p.val(p.getMasked());
} else {
if (options.placeholder) {
el.attr('placeholder' , options.placeholder);
}
// this is necessary, otherwise if the user submit the form
// and then press the "back" button, the autocomplete will erase
// the data. Works fine on IE9+, FF, Opera, Safari.
if (el.data('mask')) {
el.attr('autocomplete', 'off');
}
// detect if is necessary let the user type freely.
// for is a lot faster than forEach.
for (var i = 0, maxlength = true; i < mask.length; i++) {
var translation = jMask.translation[mask.charAt(i)];
if (translation && translation.recursive) {
maxlength = false;
break;
}
}
if (maxlength) {
el.attr('maxlength', mask.length).data('mask-maxlength', true);
}
p.destroyEvents();
p.events();
var caret = p.getCaret();
p.val(p.getMasked());
p.setCaret(caret);
}
};
jMask.init(!el.is('input'));
};
$.maskWatchers = {};
var HTMLAttributes = function () {
var input = $(this),
options = {},
prefix = 'data-mask-',
mask = input.attr('data-mask');
if (input.attr(prefix + 'reverse')) {
options.reverse = true;
}
if (input.attr(prefix + 'clearifnotmatch')) {
options.clearIfNotMatch = true;
}
if (input.attr(prefix + 'selectonfocus') === 'true') {
options.selectOnFocus = true;
}
if (notSameMaskObject(input, mask, options)) {
return input.data('mask', new Mask(this, mask, options));
}
},
notSameMaskObject = function(field, mask, options) {
options = options || {};
var maskObject = $(field).data('mask'),
stringify = JSON.stringify,
value = $(field).val() || $(field).text();
try {
if (typeof mask === 'function') {
mask = mask(value);
}
return typeof maskObject !== 'object' || stringify(maskObject.options) !== stringify(options) || maskObject.mask !== mask;
} catch (e) {}
},
eventSupported = function(eventName) {
var el = document.createElement('div'), isSupported;
eventName = 'on' + eventName;
isSupported = (eventName in el);
if ( !isSupported ) {
el.setAttribute(eventName, 'return;');
isSupported = typeof el[eventName] === 'function';
}
el = null;
return isSupported;
};
$.fn.mask = function(mask, options) {
options = options || {};
var selector = this.selector,
globals = $.jMaskGlobals,
interval = globals.watchInterval,
watchInputs = options.watchInputs || globals.watchInputs,
maskFunction = function() {
if (notSameMaskObject(this, mask, options)) {
return $(this).data('mask', new Mask(this, mask, options));
}
};
$(this).each(maskFunction);
if (selector && selector !== '' && watchInputs) {
clearInterval($.maskWatchers[selector]);
$.maskWatchers[selector] = setInterval(function(){
$(document).find(selector).each(maskFunction);
}, interval);
}
return this;
};
$.fn.masked = function(val) {
return this.data('mask').getMaskedVal(val);
};
$.fn.unmask = function() {
clearInterval($.maskWatchers[this.selector]);
delete $.maskWatchers[this.selector];
return this.each(function() {
var dataMask = $(this).data('mask');
if (dataMask) {
dataMask.remove().removeData('mask');
}
});
};
$.fn.cleanVal = function() {
return this.data('mask').getCleanVal();
};
$.applyDataMask = function(selector) {
selector = selector || $.jMaskGlobals.maskElements;
var $selector = (selector instanceof $) ? selector : $(selector);
$selector.filter($.jMaskGlobals.dataMaskAttr).each(HTMLAttributes);
};
var globals = {
maskElements: 'input,td,span,div',
dataMaskAttr: '*[data-mask]',
dataMask: true,
watchInterval: 300,
watchInputs: true,
keyStrokeCompensation: 10,
// old versions of chrome dont work great with input event
useInput: !/Chrome\/[2-4][0-9]|SamsungBrowser/.test(window.navigator.userAgent) && eventSupported('input'),
watchDataMask: false,
byPassKeys: [9, 16, 17, 18, 36, 37, 38, 39, 40, 91],
translation: {
'0': {pattern: /\d/},
'9': {pattern: /\d/, optional: true},
'#': {pattern: /\d/, recursive: true},
'A': {pattern: /[a-zA-Z0-9]/},
'S': {pattern: /[a-zA-Z]/}
}
};
$.jMaskGlobals = $.jMaskGlobals || {};
globals = $.jMaskGlobals = $.extend(true, {}, globals, $.jMaskGlobals);
// looking for inputs with data-mask attribute
if (globals.dataMask) {
$.applyDataMask();
}
setInterval(function() {
if ($.jMaskGlobals.watchDataMask) {
$.applyDataMask();
}
}, globals.watchInterval);
}, window.jQuery, window.Zepto));
/**
* Fetch
* https://github.com/github/fetch
*
* Released under the MIT License (MIT)
* https://github.com/github/fetch/blob/master/LICENSE
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(factory((global.WHATWGFetch = {})));
}(this, (function (exports) { 'use strict';
var support = {
searchParams: 'URLSearchParams' in self,
iterable: 'Symbol' in self && 'iterator' in Symbol,
blob:
'FileReader' in self &&
'Blob' in self &&
(function() {
try {
new Blob();
return true
} catch (e) {
return false
}
})(),
formData: 'FormData' in self,
arrayBuffer: 'ArrayBuffer' in self
};
function isDataView(obj) {
return obj && DataView.prototype.isPrototypeOf(obj)
}
if (support.arrayBuffer) {
var viewClasses = [
'[object Int8Array]',
'[object Uint8Array]',
'[object Uint8ClampedArray]',
'[object Int16Array]',
'[object Uint16Array]',
'[object Int32Array]',
'[object Uint32Array]',
'[object Float32Array]',
'[object Float64Array]'
];
var isArrayBufferView =
ArrayBuffer.isView ||
function(obj) {
return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1
};
}
function normalizeName(name) {
if (typeof name !== 'string') {
name = String(name);
}
if (/[^a-z0-9\-#$%&'*+.^_`|~]/i.test(name)) {
throw new TypeError('Invalid character in header field name')
}
return name.toLowerCase()
}
function normalizeValue(value) {
if (typeof value !== 'string') {
value = String(value);
}
return value
}
// Build a destructive iterator for the value list
function iteratorFor(items) {
var iterator = {
next: function() {
var value = items.shift();
return {done: value === undefined, value: value}
}
};
if (support.iterable) {
iterator[Symbol.iterator] = function() {
return iterator
};
}
return iterator
}
function Headers(headers) {
this.map = {};
if (headers instanceof Headers) {
headers.forEach(function(value, name) {
this.append(name, value);
}, this);
} else if (Array.isArray(headers)) {
headers.forEach(function(header) {
this.append(header[0], header[1]);
}, this);
} else if (headers) {
Object.getOwnPropertyNames(headers).forEach(function(name) {
this.append(name, headers[name]);
}, this);
}
}
Headers.prototype.append = function(name, value) {
name = normalizeName(name);
value = normalizeValue(value);
var oldValue = this.map[name];
this.map[name] = oldValue ? oldValue + ', ' + value : value;
};
Headers.prototype['delete'] = function(name) {
delete this.map[normalizeName(name)];
};
Headers.prototype.get = function(name) {
name = normalizeName(name);
return this.has(name) ? this.map[name] : null
};
Headers.prototype.has = function(name) {
return this.map.hasOwnProperty(normalizeName(name))
};
Headers.prototype.set = function(name, value) {
this.map[normalizeName(name)] = normalizeValue(value);
};
Headers.prototype.forEach = function(callback, thisArg) {
for (var name in this.map) {
if (this.map.hasOwnProperty(name)) {
callback.call(thisArg, this.map[name], name, this);
}
}
};
Headers.prototype.keys = function() {
var items = [];
this.forEach(function(value, name) {
items.push(name);
});
return iteratorFor(items)
};
Headers.prototype.values = function() {
var items = [];
this.forEach(function(value) {
items.push(value);
});
return iteratorFor(items)
};
Headers.prototype.entries = function() {
var items = [];
this.forEach(function(value, name) {
items.push([name, value]);
});
return iteratorFor(items)
};
if (support.iterable) {
Headers.prototype[Symbol.iterator] = Headers.prototype.entries;
}
function consumed(body) {
if (body.bodyUsed) {
return Promise.reject(new TypeError('Already read'))
}
body.bodyUsed = true;
}
function fileReaderReady(reader) {
return new Promise(function(resolve, reject) {
reader.onload = function() {
resolve(reader.result);
};
reader.onerror = function() {
reject(reader.error);
};
})
}
function readBlobAsArrayBuffer(blob) {
var reader = new FileReader();
var promise = fileReaderReady(reader);
reader.readAsArrayBuffer(blob);
return promise
}
function readBlobAsText(blob) {
var reader = new FileReader();
var promise = fileReaderReady(reader);
reader.readAsText(blob);
return promise
}
function readArrayBufferAsText(buf) {
var view = new Uint8Array(buf);
var chars = new Array(view.length);
for (var i = 0; i < view.length; i++) {
chars[i] = String.fromCharCode(view[i]);
}
return chars.join('')
}
function bufferClone(buf) {
if (buf.slice) {
return buf.slice(0)
} else {
var view = new Uint8Array(buf.byteLength);
view.set(new Uint8Array(buf));
return view.buffer
}
}
function Body() {
this.bodyUsed = false;
this._initBody = function(body) {
this._bodyInit = body;
if (!body) {
this._bodyText = '';
} else if (typeof body === 'string') {
this._bodyText = body;
} else if (support.blob && Blob.prototype.isPrototypeOf(body)) {
this._bodyBlob = body;
} else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
this._bodyFormData = body;
} else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
this._bodyText = body.toString();
} else if (support.arrayBuffer && support.blob && isDataView(body)) {
this._bodyArrayBuffer = bufferClone(body.buffer);
// IE 10-11 can't handle a DataView body.
this._bodyInit = new Blob([this._bodyArrayBuffer]);
} else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) {
this._bodyArrayBuffer = bufferClone(body);
} else {
this._bodyText = body = Object.prototype.toString.call(body);
}
if (!this.headers.get('content-type')) {
if (typeof body === 'string') {
this.headers.set('content-type', 'text/plain;charset=UTF-8');
} else if (this._bodyBlob && this._bodyBlob.type) {
this.headers.set('content-type', this._bodyBlob.type);
} else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');
}
}
};
if (support.blob) {
this.blob = function() {
var rejected = consumed(this);
if (rejected) {
return rejected
}
if (this._bodyBlob) {
return Promise.resolve(this._bodyBlob)
} else if (this._bodyArrayBuffer) {
return Promise.resolve(new Blob([this._bodyArrayBuffer]))
} else if (this._bodyFormData) {
throw new Error('could not read FormData body as blob')
} else {
return Promise.resolve(new Blob([this._bodyText]))
}
};
this.arrayBuffer = function() {
if (this._bodyArrayBuffer) {
return consumed(this) || Promise.resolve(this._bodyArrayBuffer)
} else {
return this.blob().then(readBlobAsArrayBuffer)
}
};
}
this.text = function() {
var rejected = consumed(this);
if (rejected) {
return rejected
}
if (this._bodyBlob) {
return readBlobAsText(this._bodyBlob)
} else if (this._bodyArrayBuffer) {
return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer))
} else if (this._bodyFormData) {
throw new Error('could not read FormData body as text')
} else {
return Promise.resolve(this._bodyText)
}
};
if (support.formData) {
this.formData = function() {
return this.text().then(decode)
};
}
this.json = function() {
return this.text().then(JSON.parse)
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Best Bearish Strategies in F&O Trading for Profitable Moves -
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Home Business Best Bearish Strategies in F&O Trading for Profitable Moves
Before we begin with the bearish strategies, it is important to have an understanding of F&O trading. Trading in Futures and Options (F&O) falls under the derivatives market where traders speculate on the price movements of properties such as stock, commodities, or indices without actually taking their ownership. It is meant to give leverage to traders for their positions and hedge risks toward profit-making opportunities.
Futures contracts, in essence, bind the trader to either purchase or sell an asset at a determined price on a given future date, whereas an Options contract provides the right to buy (call option) or sell (put option) an asset at a price predetermined by a contract during a contractually specified time.
What Are Call Options And Put Options?
A call option allows the holder to buy an underlying asset at a predetermined price before expiration, thus it is favored by bullish traders expecting the price to increase.
A put option allows for the exercise of the right to sell an asset at a predetermined price before expiration and is favored by traders expecting prices to eventually decline.
Now that we understand the mechanism of F&O trading , we can move on to explore some of the profitable bearish strategies that traders can use to generate profits.
1. Short Selling in Futures
Short selling is one of the simplest bearish strategies in F&O trading. Here, traders sell a futures contract expecting the price to decline. If the price drops, they buy it back at a lower rate, making a profit on the difference.
Example:
Should the Price ABC chart decline from INR 1,000 to INR 900?
Sell Futures at INR 1,000.
Once at INR 900, Buyback, making a profit of INR 100 per share.
Very risky as the stock goes higher can lead to unlimited losses.
2. Buying Put Options.
Of all the instruments available for bearish traders, put options are the most effective in driving profits from falling asset prices and are inherently limited in risk to the premium that is paid.
For instance:
If Nifty is trading at 18,000 and the trader expects it to decline, will buy a put option having a strike price of 17,800 for a premium of INR 50.
If Nifty falls to 17,500, the value of the put option will increase, resulting in a profitable trade.
This strategy is effective as the losses are capped at the premium paid while the potential profits can be enormous.
3. Bear Put Spread
The bear put spread results from buying a put option with a high strike price and selling a put option with a low strike price. Bear put spreads limit both expected profit and loss, providing a risk-managed approach.
Example:
Buy the Nifty put option at 18,000 for INR 100.
Sell Nifty put option at 17,800 for INR 50.
Net cost (max loss) = INR 50.
Max gain INR 200 (difference between strike prices minus net costs).
Bear put spreads work best for those traders who carry a moderately bearish view since they balance risk and reward.
4. Bear Call Spread
Techniques in the bear call spread require traders to sell a call with a lower strike price while buying a call option and put option with a higher strike price. This strategy generates limited profit in case the underlying asset stays below the strike price of the sold call option.
Example:
Sell Stock XYZ call option at INR 1,000 at INR 50.
Buy Stock XYZ call option at INR 1,050 at INR 20.
The net premium received = INR 30.
If the stock price stays below INR 1,000, this allows the trader to earn a profit of INR 30.
Controlled risk and limited downside movement suit these traders best.
5. Straddle and Strangle (Volatility Bearish Trade)
For those traders anticipating volatility but having an equally bearish bias, the straddle and strangle strategies come into play.
Short Straddle
A short straddle consists of selling a call and a put at the same strike price that profited from low volatility.
Assuming it is trading at INR 500, a trader sells both a 500 call and a 500 put.
The trader earns from the premium collected if the Stock stays around INR 500.
Short Strangle
The short strangle is designed to sell out-of-the-money options (one put and one call) and thereby profit from the decline of volatility.
Assume it is trading at INR 500, sell a 480 put and 520 call.
Should the stock hover near this range, profits from premium decay accrue to the trader.
These strategies could, however, be dangerous if the stock moves too strongly in either direction.
6. Protective Put (A Hedging Strategy)
For traders that are taking long positions, but suspect a downturn, a protective put strategy can hedge some of that risk.
Example:
A trader buys shares of stock ABC at INR 1,000. To hedge the put option, they purchase the stock at INR 950. This puts the trader in the black when the price falls below INR 950 and compensates for his loss as insurance. This strategy is a great way to protect investments against uncertainty.
Conclusion
Opportunities abound in F&O trading to profit from bearish outlooks. Traders can choose whether to short directly, use put options, or employ spread strategies depending on risk appetite and market outlooks. A good understanding of F&O trading along with what call options and put options are will help the trader implement effective bearish strategies.
While the above strategies are profitable ones, the trader also has to mitigate the risks by way of using stop losses and some hedging strategies. If conditions change, this premeditated strategy will help the trader maximize the profits and minimize the losses.
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