Actually that is a total return number, so includes dividends. But it doesn't matter. Here is the guarantee you get with index fund investing:
You will get returns that are higher than the vast majority (70-80%) of the professional money managers for whom the chosen index is the benchmark. Example, if you are buying a large cap index, you will beat most of the actively managed large cap funds.
You can come at this analytically as follows: The market
is professional money managers, so the average performance of the market
has to be the average performance of professional money managers. Further, the returns that the money managers deliver to their clients are guaranteed to be
lower than the average market return due to fees, transaction costs, bid/ask spreads, etc. A Nobel Prize winning economist explains in slightly more detail:
http://web.stanford.edu/~wfsharpe/art/active/active.htm
There is also a mountain of statistical evidence that this is true. Reading the biannual S&P SPIVA ("S&P Indexes vs Active Funds") reports is an easily digestible approach to seeing this.
So, you say: "I won't use an average manager. I'll use a superior manager." Easy to say, impossible (statistically) to do. Again, S&P to the rescue with their reports on "Manager Persistence."
Sure, managers (including you) can get lucky and you can get lucky picking a professional manager, but the odds are unquestionably against you. Though the investment press and the active managers try to hide these facts from you, they are irrefutable. Do the research for yourself.
Now ... back to VTSMX: IMO MIFlyer was a little optimistic promising 8-11%, since the total return of the market over most of a century is less than that. But what he can guarantee is that you will beat most professionals who invest in the total US stock market. (Incidentally the Russell 3000, a fairly representative total market index, returned 4.42% during the period 10//2/2000 through yesterday. Index funds will always return slightly less than their tracked indices, but it's a tiny amount compared to the costs of an active manager.)
Now, moving from middle school to high school: The proven way to get superior returns is with asset allocation strategies. At it's simplest, this means buying assets whose returns are negatively correlated or uncorrelated. "Negatively correlated" means, for example, that in a two-asset portfolio one asset goes down whenever the other goes up. This is the essence of "modern portfolio theory," which is far beyond the scope of a pilot board.
There are many relevant articles out there. Here are a few:
http://www.forbes.com/sites/rickferri/2014/03/24/3-to-1-odds-favor-index-investors/
http://money.usnews.com/money/blogs...-reasons-to-add-index-funds-to-your-portfolio
http://www.nytimes.com/2014/07/27/y...r-way-you-might-beat-a-stock-picker.html?_r=0
Responding to the OP's original concept, the unstated premise was that it is possible for an active manager to "beat the market" if he can get enough good ideas and advice. Setting aside the question of whether good ideas and advice are obtainable on the internet, the statistics say that this is very unlikely to work. It took me maybe 20 years and cost me a lot of money before I figured this out. My point in posting is to discourage others from following me on this path.
Oh, and spare me the chest thumping stories of how many years you have outperformed the market. Even a monkey flipping coins will get a run of seven heads once in a while. If you're a lucky monkey, good for you. Before you do too much chest-thumping, however, read Taleb's
Fooled by Randomness.