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[知识] HOW TO IDENTIFY THE BEST STOCKS FOR DAY TRADING & OPTIONS TRADING(ZT)

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发表于 2015-5-13 12:46 PM | 显示全部楼层 |阅读模式


I am not about to give you a list of stocks that you can just go through and pick the ones you want to trade. I have had many readers repeatedly ask for that but I think that if I did that, it wouldn't be helping you much. The fact is that, a stock that is good for Day Trading or Options Trading today, may not be good next month or next year. So just throwing out a list of "best stocks to trade" would be silly and I would just end up getting the same questions over and over again from readers.

What I want to do instead is to lay out the criteria/profile for a stock that is good for Day Trading and Options Trading, in this way, you will become familiar with the criteria and be able to identify suitable trading candidates on your own regardless of the market conditions.  So here goes. Grab a pen and paper and take notes.
There are basically three things that you need to look for when trying to find the best possible stocks to Day Trade or Trade Options. They are:

A Wide Daily Range
High/Deep Liquidity
Relatively High Volume ( And you will see later why high volume and liquidity are not always the same)

Now lets dig a little deeper into each criterion.

1. A Wide Daily Range


A wide daily range is very important because if stocks do not move sufficiently, you will have a hard time getting into a trade, getting out, covering your commissions and realizing a decent profit on the trade.  There is no sense in day trading a stock with a 1point/$1 average daily swing as it would mean that you would need to buy at the absolute bottom of the range and sell at the top just to make a buck and that is before we even subtract commission.   

Its the same thing if you are trading options, you will need to focus on stocks with a higher average daily range than just $1. If you recall from a previous post I made about Options Trading, I said the Option Delta is basically the rate at which an Option will change based on the change in the stock price. So if you have a stock that only moves $1 then that means the Option Price will not move enough for you to make a profit and cover commissions. The situation is even worse if the Option is out of the money and being eaten by time decay. That last article I referred to was a very good post which sparked a lot of feedback so you should read it here.   

Now the question is how do you identify a stock with a wide daily range? The answer is that there are two simple ways to find them.
The first way is to simply look at the high-low range of the market leaders. There are many free services which can provide this information. One of the better ones is Barchart.com which gives you daily lists of range advances and range declines.  It is not sufficient to just grab the list and start picking stocks though. You should realize that some of these range movements are one time ocurrencies driven by some kind of news or sudden spike in trading activity. You want to ensure is that the wide range happens frequently if you intend to keep trading the stock and this brings us to the second way to find stocks with wide ranges..... which is, the Average True Range (ATR).

The ATR is a volatility indicator and basically works such that a stock with a high volatility has a high ATR/daily range and a stock with low volatility has a low ATR/daily range. It makes sense to trade high volatility stocks if you are going to day trade and we also know that options trading is essentially about trading volatility, so you naturally want more of it. There are several free services that provide ATR information and most brokerages/platforms offer it these days. If you are using your platform ATR indicator, be sure to set it to the 20 Day Moving Average as it gives you a decent average and puts the ATR in perspective. Below is screen shot of LNKD with the ATR circled. This information can be had for free at Finviz.com.
Picture

Now we want to compare the ATR on LinkedIn Corp (LNKD) to that of Facebook Inc.(FB) on this screenshot right below. FB, in its own right, is not that bad of a stock to Day Trade or play with options. In fact, I have traded it many times before. But compared to LNKD, it is very slow with a narrow range.     
Picture
This now brings us to the second criterion that you want to look for if you want the best stocks to day trade or to trade options on.

2. High Liquidity

Liquidity simply means that the market in a particular stock is large and has many buyers and sellers at any given time and at many different price levels. Liquidity is very important when looking for stocks and options to trade as it helps you to get in and out of the trade with ease and allows you to get good fills. An illiquid stock will tend to have large bid-ask spreads on both the Options and the underlying stock. The bid-ask spread is the difference between the asking price and the bid price. In fact, the real market price of the stock is always somewhere between the bid and the ask and not the last price quoted.  As Richard D. Wyckoff once said, "The last sale is not the market, that is market history".

Whenever the spread is too wide, you risk paying too much to get into a trade and leaving too much on the table when you are getting out. Furthermore, when there are narrow spreads and a wide range, a stock wil naturally attract more players which will, in turn, deepen the liquidity and possibly further widen the range. So it becomes a self feeding mechanism until it changes.

Yes, the character of a stock or the way it trades often can, does and will change. And this is why you are reading this article. So yo can know how to recognize when it changes and use the criteria I am listing here to find new stuff to trade. This now brings us to the final criterion.

3.  High Average Volume

It is not uncommon to hear traders talk about liquidity and volume in the same breath. In many respects, they are very close to being one and the same but there are certain instances in which they are different and it can literally pay to be able to recognize the differences when they do occur. In my attempt to highlight the subtle difference, I look at volume as being the amount of shares being bought and sold, and liquidity as the ease with which those shares are bought and sold.

The most liquid stocks are usually those with high volumes so you need to focus on trading stocks with high volume to ensure liquidity. It is important that when you go looking for high volume stocks, that you pay attention to the average volume as opposed to just raw volume. A high average volume will indicate that the volume profile of the stock is ongoing and that you can count on it to turn over a certain amount of shares each and every day. I usually set my volume screen to look for stocks with a 20 Day average volume of greater than 1 million shares.   

I know this was a long read but if you are still around at this point, it means you have a genuine hunger for market knowledge ( even the little nuances) and that is the hallmark of a good trader/investor. I have been in this business for 11 years now and I have never come across a successful trader/investor who didn't spend time soaking in as much as they can, whenever they can. This is not a lazy man's job. Stay hungry.   

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发表于 2015-5-13 12:59 PM | 显示全部楼层

A Wide Daily Range
High/Deep Liquidity
Relatively High Volume

at rihgt time to buy and sell.

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发表于 2015-5-13 01:05 PM | 显示全部楼层
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 楼主| 发表于 2015-5-13 01:42 PM | 显示全部楼层
我今天做Option, Bid Ask的Spread太大了, 难成交,后来就想起来Google一下,觉得这文说得还比较靠谱。。。
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发表于 2015-5-13 02:48 PM | 显示全部楼层
冲着最后那句话 “This is not a lazy man's job”,发奋图强,研究了一下ATR,觉得有两个问题:

1. ATR在当天开盘价和前一天的收盘价之间有空隙时(GAP UP/DOWN 或 INSIDEBAR)会把这个空隙包括到这一天的RANGE里,美其名曰TRUE RANGE。但这个对DT是没有意义的。比如商品,货币,海外市场等等的ETF, 跳高/低是家常便饭,开盘后反而波动很小,DT没多少油水。

2. ATR用的是价格变化的绝对值,一般来说股价高的股票ATR的值也高,但并不能说明这只股的波动性一定大。如果使用这个技术指标筛选股票,这个值应当设在哪儿合适呢?当然,绝对值高对做OPTION是有好处的,油水大,但往往OPTION本身价高SPREAD也高,好像也不是很容易。

话又说回来,既然是做DT,为什么不就选当天的热门股呢,涨跌幅大量大不是正合适吗?有新闻刺激不是更好吗?哪位DT高手给讲讲?

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发表于 2015-5-13 10:25 PM | 显示全部楼层
RespectRisk 发表于 2015-5-13 02:48 PM
冲着最后那句话 “This is not a lazy man's job”,发奋图强,研究了一下ATR,觉得有两个问题:

1. ATR ...

看 ATR 是用来选股赌ER的。

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发表于 2015-5-14 07:44 AM | 显示全部楼层
haomajia 发表于 2015-5-13 10:25 PM
看 ATR 是用来选股赌ER的。

谢谢点拨,能再多讲讲吗?
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 楼主| 发表于 2015-5-16 11:28 AM | 显示全部楼层
RespectRisk 发表于 2015-5-14 07:44 AM
谢谢点拨,能再多讲讲吗?

大约是赌ER的时候选ATR大的
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 楼主| 发表于 2015-5-16 11:32 AM | 显示全部楼层
本帖最后由 青影 于 2015-7-11 09:18 PM 编辑

还要在这里加一条,做option的时候,要选 penny increment options, 这样可以减小 bid & ask's spread 这个可以加在Filter里面
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发表于 2015-5-16 03:43 PM | 显示全部楼层
青影 发表于 2015-5-16 11:32 AM
本帖最后由 青影 于 2015-5-16 11:34 AM 编辑 还要在这里加一条,做option的时候,要选 penny increment o ...

学习了,谢谢!

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ib在很多不是penney incrreament 的option,也可以设penny。比如3.05,5 cents increament,但你可以设3.06, level 2看不到你的报价,但是你会比3.05 早成交,这样给你一点优势  发表于 2015-5-16 04:27 PM

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