What are pros and cons of volatility trading over directional stock trading
Can't totally agree with that. Volatility trading is just one trading type of many. In my opinion it doesn't depend on whether you are a professional trader or not.  As you might have heard, retail traders are said to create 'noise' on the market, mainly due to the fact that they aren't professional in their majority. So, I would assume, if an average retail trader decided to trade volatility he would create as much noise as if would have been betting on stock directions. Basically, most types of trading would require a considerable amount of effort spent on fundamental analysis of the underlying be it volatility or directional trading. Arbitrage trading would be an exception here, I guess. However, volatility trading relies more on trader's subjective expectations about future deviations, whereas trading stock directions requires deeper research of the underlying. Is it a drawback or an advantage? I.d.k. On the other hand-side volatility trading strategies cover both upward and downward movements, but you can set similar hedging strategies when going short or long on stocks, isn't it? To summarise, I think it is a matter of preference. Imagine yourself going long on S&P500 since 2009. Do you think there are many volatility traders who have outperformed that?
I was wondering what relations are between brokerage companies and exchanges? Are brokers representing investors to trade on exchanges? Yes...but a broker may also buy and sell stocks for his own account. This is called broker-delaer firm. For individual investors, what are some cons and pros of trading on the exchanges directly versus indirectly via brokers? Doesn't the former save the investors any costs/expenses paid to the brokers? Yes, but to trade directly on an exchange, you need to register with them. That costs money and only a limited number of people can register I believe. Note that some (or all?) exchanges have their websites where I think trading can be done electronically, such as NASDAQ and BATS? Can almost all stocks be found and traded on almost every exchange? In other words, is it possible that a popular stock can only be found and traded on one exchange, but not found on the other exchange? If needed to be more specific, I am particularly interested in the U.S. case,and for example, Apple's stock. Yes, it is very much possible with smaller companies. Big companies are usually on multiple exchanges. What are your advices for choosing exchange and choosing brokerage companies? What exchanges and brokerage companies do you recommend? For brokerage companies, a beginner can go with discount broker. For sophisticated investors can opt for full service brokers. Usually your bank will have a brokerage firm. For exchanges, it depends...if you are in US, you should send to the US exchanges. IF you wish to send to other exchanges in other countries, you should check with the broker about that. ATR really looks at the volatility within the day -- So you would be able to see if the stock is becoming more or less volatile in daily trading.  This is often useful for charting and finding entry and exit locations.   Traditional historic volatility (as you cited) will give you a look at the long term volatility of the security.  The example of this is that there could be trends up or down but the same daily volatility (same ATR) There are methods that try to incorporate both intraday information along with historic volatility.  As for which is a better measure of volatility-- it depends on what you are using the measure for. "you bet that a quote/currency/stock market/anything will rise or fall within a period of time. ... So, what is the relationship with trading ? I see no trading at all since I don't buy or sell quotes. So, if you just wander in and say ""oh, hey, look, a bunch of options, i'm going to play games and have excitement"" then that is, in fact, some sort of gambling. Indeed, most trading activities will be like that to you. On the other hand, you might be engaged in other business where those things matter. You might be doing a lot of trading elsewhere in the market, for instance, and suddenly everyone freaks out and the stock market goes crazy and you lose a ton of money. To protect yourself from losing a ton of money, you might buy a binary option based on VIX (the volatility index) going over a certain level. If you're not in a business where you're buying it to protect yourself, then you should probably only buy the options if you have reason to think it'll be profitable and worth the risk. If you don't understand the risks, skip it." Coolness - It's not only a matter of staying calm when being up or down. You must keep yourself from chasing a stock that appears to be running away. Or from betting all your money that something(like say a crash) will happen tomorrow because that would be great for you. Use your head not your heart. Empathy - You need to understand what other speculators, investors, institutions and algorithms are going to do when there is a new development or technical signal. And why. For publicly traded corporations, fundamentals and technical indicators only have the value that people(and their algorithms) choose to assign to them at that particular moment. And every stock has a different population trading it. There is no rule of thumb. Patience - To trade successfully, you must avoid trading at all costs. Heh. If you can't find any good trade to do, don't open positions in order to meet your targets, buy a new smartphone, or to fight boredom. Diligence - If your strategy relies on tight stops, don't make exceptions. If your strategy relies on position sizing, don't close when you are a few points down. Luck - In the end almost every trade can turn against you very badly. You must prepare for the worst and hope for the best. You can't buy luck, or get luckier, but you can attempt to stack probabilities: diversify, buy options to insure your positions, reduce holding time, avoid known volatility events, etc. I know I can not trade futures realistically (I never claimed I could). All I wanted was some exposure to commodities.  If I could just trade many of these things in an ETF like GLD or XLV, I would have done that.   On the topic of margin, I appreciate your explaining that to me. I admit readily that I could never invest in futures straight, but I would like to get into commodities and other types of investments. I have tried to look for value in the market, but I have not found many things I would put my money in. I have gone as far as to look through OTC ADRs to find some foreign value, and I found nothing. I just want to be able to trade in any market, and I would consider shorting, but I don't like to be too risky. I want to go long on positions, and it seemed like commodities may be a good speculation to LOOK INTO. Taking rough rice as an example, there are millions (if not billions) of people who eat rice to survive. People will always need oil to fuel their cars. People will always need electricity. So I guess what I am trying to do is look into things that allow me to profit, regardless of where equities are going. The only thing I want to do is trade the options of the futures, not the actual futures themselves. I hope I did not confuse you. If I can earn even $20 from buying an option at a lower price and selling higher, it would allow me to have a greater breadth of tools to use when the market may be overvalued. "For any isolated equity market, its beta will less resemble the betas of all other interconnected equity markets.  For interconnected markets, beta is not well-dispersed, especially during a world expansion because richer nations have more wealth thus a dominant influence over smaller nations' equity markets causing a convergence.  If the world is in recession, or a country is in recession, all betas or the recessing country's beta will start to diverge, respectively.  If the world's economies diverge, their equity markets' betas will too.  If a country is having financial difficulty, its beta too will diverge. Beta is correlation against a ratio of variance, so variance or ""volatiliy"" is only half of that equation.  Correlation or ""direction"" is the other half.  The ratio of variance will give the magnitude of beta, and correlation will give the sign or ""direction"". Therefore, interconnected emerging equity markets should have higher beta magnitudes because they are more variant but should generally over time have signs that more closely resemble the rest.  A disconnected emerging equity market will improbably have average betas both by magnitude and direction." VXX VZX XVIZ and there are plenty others correlated to market volatility if you want the wildest hedge, use VXX, it is also the most liquid For the type of market neutrality you desire, free from crash risk, it's best to hedge the shares with covered calls when implied volatility is expensive and puts when implied volatility is cheap with the nearest at the money expirations.  A put only strategy can be very expensive and should only be used with the longest term options available since they can cost many tens of % per year. Securities become almost perfectly correlated during a crash; therefore, market crash risk of one security is essentially equal to the market crash risk, so hedging the security itself makes a position market neutral for crash risk. This strategy will have intermittent opportunity cost risk in the form of slower returns during market expansion to pay for smaller losses during a crash; however, the expected long run return hedged this way should be greater than the underlying's expected long run return with less volatility.