Is there a good tool to view a stock portfolio's value as a graph?
Google Finance will do all the bullet points in your list and a few more.  The only drawback is that you have to enter ALL buy and sell manually.  It has an import feature, but it does not work with all trading software. http://www.google.com/finance Let me know if it works.  Also, yahoo.com/finance has a good tool, but I still like better Google's application. I have no idea if Wikivest can handle options, but I've been pretty satisfied with it as a portfolio visualization tool. It links automatically with many brokerage accounts, and has breakdowns by both portfolio and individual investment levels.
The portion of a stock movement not correlated with stocks in general is called Alpha. I don't know of any online tools to graph alpha. Keep in mind that a company like Apple is so huge right now that any properly weighted index will have to correlate with it to some degree. Bonds by themselves aren't recession proof.  No investment is, and when a major crash (c.f. 2008) occurs, all investments will be to some extent at risk. However, bonds add a level of diversification to your investment portfolio that can make it much more stable even during downturns. Bonds do not move identically to the stock market, and so many times investing in bonds will be more profitable when the stock market is slumping.  Investing some of your investment funds in bonds is safer, because that diversification allows you to have some earnings from that portion of your investment when the market is going down. It also allows you to do something called rebalancing.  This is when you have target allocation proportions for your portfolio; say 60% stock 40% bond.  Then, periodically look at your actual portfolio proportions.  Say the market is way up - then your actual proportions might be 70% stock 30% bond.  You sell 10 percentage points of stocks, and buy 10 percentage points of bonds. This over time will be a successful strategy, because it tends to buy low and sell high. In addition to the value of diversification, some bonds will tend to be more stable (but earn less), in particular blue chip corporate bonds and government bonds from stable countries.  If you're willing to only earn a few percent annually on a portion of your portfolio, that part will likely not fall much during downturns - and in fact may grow as money flees to safer investments - which in turn is good for you. If you're particularly worried about your portfolio's value in the short term, such as if you're looking at retiring soon, a decent proportion should be in this kind of safer bond to ensure it doesn't lose too much value.   But of course this will slow your earnings, so if you're still far from retirement, you're better off leaving things in growth stocks and accepting the risk; odds are no matter who's in charge, there will be another crash or two of some size before you retire if you're in your 30s now. But when it's not crashing, the market earns you a pretty good return, and so it's worth the risk. I understand now. Thank you. How important is the existence of effective price discovery tools in a market?   And the example that you gave of a farmer is good, but when I as the owner of a company, get futures regarding, say, the stocks that I own of my company, won't that be insider trading if I do that after knowing that the value of my stocks will fall? If people assume price discovery in this case, won't they also have to assume that I am doing insider trading? "The S&P 500 index from 1974 to present certainly looks exponential to me (1974 is the earliest data Google has).  If you read Jeremy Siegel's book there are 200 year stock graphs and the exponential nature of returns on stocks is even more evident.  This graph only shows the index value and does not include the dividends that the index has been paying all these years.  There is no doubt stocks have grown exponentially (aka have grown with compound interest) for the past several decades and compounded returns is definitely not a ""myth"".  The CAGR on the S&P 500 index from 1974 to present has been 7.54%: (1,783 / 97.27) ^ (1 / 40) - 1 Here is another way to think about compounded investment growth: when you use cash flow from investments (dividends, capital gains) to purchase more investments with a positive growth rate, the investment portfolio will grow exponentially.  If you own a $100 stock that pays 10% dividends per year and spend the dividends every year without reinvesting them, then the investment portfolio will still be worth $100 after 40 years.  If the dividends are reinvested, the investment portfolio will be worth $4,525 after 40 years from the many years of exponential growth: 100*(1 + 10%)^40" "Check out Professor Damodaran's website: http://pages.stern.nyu.edu/~adamodar/ . Tons of good stuff there to get you started. If you want more depth, he's written what is widely considered the bible on the subject of valuation: ""Investment Valuation"". DCF is very well suited to stock analysis. One doesn't need to know, or forecast the future stock price to use it. In fact, it's the opposite. Business fundamentals are forecasted to estimate the sum total of future cash flows from the company, discounted back to the present. Divide that by shares outstanding, and you have the value of the stock. The key is to remember that DCF calculations are very sensitive to inputs. Be conservative in your estimates of future revenue growth, earnings margins, and capital investment. I usually develop three forecasts: pessimistic, neutral, optimistic. This delivers a range of value instead of a false-precision single number. This may seem odd: I find the DCF invaluable, but for the process, not so much the result. The input sensitivity requires careful work, and while a range of value is useful, the real benefit comes from being required to answer the questions to build the forecast. It provides a framework to analyze a business. You're just trying to properly fill in the boxes, estimate the unguessable. To do so, you pore through the financials. Skimming, reading with a purpose. In the end you come away with a fairly deep understanding of the business, how they make money, why they'll continue to make money, etc." Here is one from a Bloomberg partnership, it is free. To get the end of day prices, you may need some programming done. PM me if you need help with that. Getting bond quotes and general information about a bond issue is considerably more difficult than researching a stock or a mutual fund. A major reason for this is that there is not a lot of individual investor demand for the information; therefore, most bond information is available only through higher level tools that are not accessible to the average investor. Read more: Where can I get bond market quotes? | Investopedia http://www.investopedia.com/ask/answers/06/bondquote.asp#ixzz3wXVwv3s5 Actually, total return is the most important which isn't necessarily just price change as this doesn't account for dividends that may be re-invested.  Thus, the price change isn't necessarily that useful in terms of knowing what you end up with as an ending balance for an investment. Secondly, the price change itself may be deceptively large as if the stock initial price was low, e.g. a few dollars or less adjusting for stock splits as most big companies will split the stock once the price is high enough, then the percentages can be quite large years later. Something else to consider is the percentage change would be based on what as the initial base.  The price at the start of the chart or something else?  Carefully consider what you want the initial starting point to be in determining price shifts here as one could take either end and claim a rationale for using it. Most people want to look at the price to get an idea of what would X shares cost to purchase rather than look at the percentage change from day to day. I like to look at Alpha, Beta, St. Dev., Sharpe Ratio, and R-Squared. It's also good to know how they work together. i.e.: Say you're comparing a fund to an index and the fund has a low beta, but the r-squared is low (&lt;70 is low for my usage). The beta loses some significance in that instance.   You want to be able to look at these 5 metrics, know what they mean on their own, and what they say about each other.  Sorry if that was poorly worded, Mondays...