What is quotational loss in stock market?
"Been a long while since I've read it but if I remember correctly with quotational loss Graham refers to an unjustified decline in stock price because of Mr. Market's fear and loathing where the business prospects of the company are actually still sound.  This is opposed to ""actual"" loss of capital which he would consider to be a company going bankrupt or just more generally turning out to have way worse business prospects than expected with the justified decline in stock price that entails." "In this instance ""quotational"" is a reference to a market price quote, not a mathematical function.  Staunch ""value investors"" like Graham, Dodd, Munger, Buffett et al. believe there is a material difference between what security is ""worth"" and what the current market mood quotes as its price.   You, the investor, perform your analysis then derive a value for a security. If there has been no material change to an aspect of the security you analyzed then there hasn't been a change in that security's value, even if there has been a decline in the price quoted by the market, that is a ""quotational loss.""" "https://www.fool.com/investing/general/2013/07/30/2-types-of-risk-2-types-of-bubbles.aspx (mirror): The Wall Street Journal reviews: What Mr. Bernstein calls ""shallow risk"" is a temporary drop in an asset's market price; decades ago, the great investment analyst Benjamin Graham referred to such an interim decline as ""quotational loss."" ""Deep risk,"" on the other hand, is an irretrievable real loss of capital, meaning that after inflation you won't recover for decades -- if ever. So quotational loss = loss not explained by change of actual value of a firm."
"Index funds are well-known to give the best long-term investment. Not exactly. Indexes give the best long term performance when compared to actively managing investments directly in the underlying stocks. That is, if you compare an S&P500 index to trying to pick stocks that are part of it, you're more likely to succeed with blindly following the index than trying to actively beat it. That said, no-one promises that investing in S&P500 is better than investing in DJIA, for example. These are two different indexes tracking different stocks and areas. So when advisers say ""diversify"" they don't mean it that you should diversify between different stocks that build up the S&P500 index. They mean that you should diversify your investments in different areas. Some in S&P500, some in DJIA, some in international indexes, some in bond indexes, etc. Still, investing in various indexes will likely yield better results than actively managing the investments trying to beat those indexes, but you should not invest in only one, and that is the meaning of diversification. In the comments you asked ""why diversify at all?"", and that is entirely a different question from your original ""what diversification is?"". You diversify to reduce the risk of loss from one side, and widen the net for gains from another. The thing is that any single investment can eventually fail, regardless of how it performed before. You can see that the S&P500 index lost 50% of its value twice within ten years, whereas before it was doubling itself every several years. Many people who were only invested in that index (or what's underlying to it) lost a lot of money. But consider you've diversified, and in the last 20 years you've invested in a blend of indexes that include the S&P500, but also other investments like S&P BSE SENSEX mentioned by Victor below. You would reduce your risk of loss on the American market by increasing your gains on the Indian market. Add to the mix soaring Chinese Real Estate market during the time of the collapse of the US real-estate, gains on the dollar losing its value by investing in other currencies (Canadian dollar, for example), etc. There are many risks, and by diversifying you mitigate them, and also have a chance to create other potential gains. Now, another question is why invest in indexes. That has been answered before on this site. It is my opinion that some methods of investing are just gambling by trying to catch the wave and they will almost always fail, and rarely will individual stock picking beat the market. Of course, after the fact its easy to be smart and pick the winning stocks. But the problem is to be able to predict those charts ahead of time." "That doesn't answer either of my questions.  For the first, you've given me a quotation (which I've seen several times before and cannot find the original source - if you know it, please cite it) that consists of opinion and speculation, not a definition.  For the second, it could be inferred that you mean to tell say you would support reverting to a monetary system based on exchanging precious metals, which Mr. Jefferson passingly implies his tolerance of. However, if this is what you mean to communicate, you're not doing yourself any favors in helping me understand your position by basing it on a minor aside in an unsourced quotation about something else.  I'm very much on board with the movement within OWS that's pushing for socioeconomic justice. But most of the people I see shouting ""end the Fed!"" really have no clue as to what they're talking about. This sort of willingness to act on ignorance is damaging.  *Edit*: If the OWS reference was weird, it was because I was previously reading a banking story from one of the Occupy subreddits and briefly forgot where I was ;) Nothing changed except a spelling error and this note." How do I start? (What broker do I use?) We don't make specific recommendations because in a few  years that might not be the best recommendation any more. You are willing to do your own research, so here are some things to look for when choosing a broker: What criticism do you have for my plan? Seeking dividend paying stock is a sensible way to generate income, but share prices can still be very volatile for a conservative investor. A good strategy might be to invest in several broad market index and bond funds in a specific allocation (for example you might choose 50% stocks and 50% bonds).  Then as the market moves, your stocks might increase by 15% one year while bonds stay relatively flat, so at the beginning of the next year you can sell some of your stocks and buy bonds so that you are back to a 50-50 allocation. The next year there might be a stock market correction, so you sell some of your bonds and buy stock until you are back to a 50-50 allocation. This is called rebalancing, and it doesn't require you to look at the market daily, just on a regular interval (every 3 months, 6 months, or 1 year, whatever interval you are comfortable with). Rebalancing will give you greater gains than a static portfolio, and it can insulate you from losses when the stock market panics occasionally if you choose a conservative allocation. I'll just add this: In the best hedge funds and proprietary trading funds, stock selection is approached very scientifically in order to minimize losses/maximize gains. Researchers think of a trading idea and carefully test it to see which methods of stock selection work and how well, and finally they combine them. Every day researchers update their models based on the past performance of each indicator.  All this is just too much work to be done manually. Firms use machine learning methods to understand markets. They try to figure out what is normal, what did not happen correctly at a specific time, what will happen in future. For instance, they use deep learning networks to look at unlabeled data, and figure out what is normal and what is not. These networks can analyze an unstructured haystack of noise, and separate out the signal. This is very relevant to finance and markets because finding the patterns and anomalies in market data has been the bread and butter of traders for decades. Deep learning networks give us applications like feature learning. By 'features,' I'm referring to certain attributes in data that indicate an event. By anticipating them, we can help predict future price movements. New technology is allowing us to break new ground in managing risk, to be a-typical and manage risk in ever-improving ways. It's the responsibility of every trader, whether working for themselves or others, to take advantage of this technology to improve the collective investing experience. I care very deeply about this. I have many close friends, in the finance world and without, who have lost large amounts of money to poor trade tools and lack of transparency. The sentence you quoted does not apply in the case where you sell the stock at a loss. In that case, you recognize zero ordinary income, and a capital loss (opposite of a gain) for the loss. Reference: http://efs.fidelity.com/support/sps/article/article2.html In order to compare the two, you need to compare your entire portfolio, which is not just how much money you have, but how much stock. In both scenarios, you start with (at least, but let's assume) £20 and 0 stock. In your scenario, you buy 10 shares, leaving you with £0 and 10 shares. You then sell it at £1.50/share to cut your losses, leaving you with £15 and 0 shares. That concludes the first transaction with a net loss of £5. In a second transaction, you then buy 10 shares again at £1/share, leaving you with £5 and 10 shares. You are still down £15 from the start, but you also still have 10 shares. Any further profit or loss depends on what you can get for those 10 shares in the future. In a short sale, you borrow 10 shares and sell them, leaving you with £40 (your initial £20 plus what you just made on the short sale) and -10 shares of stock. At the end of the contract, you must buy 10 shares to return them; you are able to do so at £1.50/share, leaving you with £25 and 0 shares. At this point, your exposure to the stock is complete, and you have a net gain of £5. "....causes loses [sic] to others. Someone sells you a stock.  The seller receives cash.  You receive a stock certificate.  This doesn't imply a loss by either party especially if the seller sold the stock for more than his purchase price. A day trading robot can make money off of the price changes of a stock only if there are buyers and sellers of the stock at certain prices.  There are always two parties in any stock transaction: a buyer and a seller.  The day trading robot can make money off of an investment for 20 years and you could still make money if the investment goes up over the 20 years.  The day trading robot doesn't ""rob"" you of any profit." William %R is a momentum indicator used for measuring overbought and oversold levels, it is not used to predict the price of a stock. In fact, William %R, like all momentum indicators, is a lagging indicator - meaning the indicator level changes as the price of the stock changes. It ranges from 0 to -100. Usually when a reading is less than -80 the stock can be considered to be oversold, and when the reading is above -20 the stock can be considered overbought. When viewed together with the price chart, this can help provide a trader with entry and exit points into and out of a trade.