What type of low-cost stock index exchange-traded fund (ETF) would give the best long-term total return?
Small cap and mid cap shares tend to outperform large cap shares in a bull market, but they tend to underperform large cap shares in a bear market. Since the stock markets tend to go up in the long term, this suggests that a low cost small and mid cap index ETF should offer the best long term returns.   Having said that, we are currently in a mature bull market having experienced over seven years without encountering a bear market.  If a bearish outlook is something you worry about, then perhaps a broad market index, which will be heavily weighted towards large cap shares, may be a better choice for you at this time, with an eye toward switching to small and mid cap indices during the next bear market.
I would just buy a low-cost diversified equity ETF. VTI is pretty solid. Also, JW are you working or in school? If you are working you should consider opening an IRA or Roth IRA. Also if your employer has a 401k or other retirement plan you can contribute to I would advise doing so. "Why bother with the ETF? Just trade the options -- at least you have the ability to know what you actually are doing. The ""exotic"" ETFs the let you ""double long"" or short indexes aren't options contracts -- they are just collections of unregulated swaps with no transparency. Most of the short/double long ETFs also only attempt to track the security over the course of one day -- you are supposed to trade them daily. Also, you have no guarantee that the ETFs will perform as desired -- even during the course of a single day. IMO, the simplicity of the ETF approach is deceiving." What is the best form of investment? It only depends on your goals... The perfect amount of money depends also on your particular situation. The first thing you should start getting familiar with is the notion of portfolio and diversification. Managing risk is also fundamental especially with the current market funkiness... Start looking at index based ETFs -Exchange Traded Funds- and Balanced Mutual Funds to begin with. Many discounted online brokerage companies in the USA offer good training and knowledge centers. Some of them will also let you practice with a demo account that let you invest virtual money to make you feel comfortable with the interface and also with investing in general. .INX (the S&P 500 index itself) does not include reinvested dividens.  You can figure total return by going to Yahoo finance, historical data. Choose the start year, and end year. You should find that data for SPY (going back to 1993) will show an adjusted close, and takes dividends into account. This isn't perfect as SPY has a .09% expense ratio, but it's better than just the S&P index. One of the more popular Dow ETF is DIA, this will let you similarly track the Dow while accounting for dividends. "You need to hope that a fund exists targeting the particular market segment you are interested in. For example, searching for ""cloud computing ETF"" throws up one result. You'd then need to read all the details of how it invests to figure out if that really matches up with what you want - there'll always be various trade-offs the fund manager has to make. For example, with this fund, one warning is that this ETF makes allocations to larger firms that are involved in the   cloud computing space but derive the majority of their revenues from   other operations Bear in mind that today's stock prices might have already priced in a lot of future growth in the sector. So you might only make money if the sector exceeds that predicted growth level (and vice versa, if it grows, but not that fast, you could lose money). If the sector grows exactly as predicted, stock prices might stay flat, though you'd still make a bit of money if they pay dividends. Also, note that the expense ratios for specialist funds like this are often quite a bit higher than for ""general market"" funds. They are also likely to be traded less frequently, which will increase the ""bid-ask"" spread - i.e. the cost of buying into and getting out of these funds will be higher." As a 22 year old planning for your financial life, it is obvious to say that saving as much as you can to invest for the long run is the smartest thing to do from a financial point of view.  In general, at this point, aged 22, you can take as much risk as you'll ever will. You're investing for the very long term (+30/+40 years). The downside of risk, the level of uncertainty on returns (positive or negative), is most significant on the short term (<5years). While the upside of risk, assuming you can expect higher returns the more risk you take, are most significant on the long term.  In short: for you're financial life, it's smart to save as much as you can and invest these savings with a lot of risk.  So, what is smart to invest in? The most important rule is to keep your investment costs as low as possible. Risk and returns are strongly related, however investment costs lower the returns, while you keep the risk. Be aware of the investment industry marketing fancy investment products. Most of them leave you with higher costs and lower returns. Research strongly suggests that an lowcost etf portfolio is our best choice. Personally, i disregard this new smart beta hype as a marketing effort from the financial industry. They charge more investment costs (that's a certain) and promise better returns because they are geniuses (hmmm...). No thanks. As suggested in other comments, I would go for an low cost (you shouldn't pay more than 0.2% per year) etf portfolio with a global diversification, with at least 90% in stocks. Actually that is what I've been doing for three years now (I'm 27 years old). What is your time horizon? Over long horizons, you absolutely want to minimise the expense ratio – a seemingly puny 2% fee p.a. can cost you a third of your savings over 35 years. Over short horizons, the cost of trading in and trading out might matter more. A mutual fund might be front-loaded, i.e. charge a fixed initial percentage when you first purchase it. ETFs, traded daily on an exchange just like a stock, don't have that. What you'll pay there is the broker commission, and the bid-ask spread (and possibly any premium/discount the ETF has vis-a-vis the underlying asset value).  Another thing to keep in mind is tracking error: how closely does the fond mirror the underlying index it attempts to track? More often than not it works against you. However, not sure there is a systematic difference between ETFs and funds there. Size and age of a fund can matter, indeed - I've had new and smallish ETFs that didn't take off close down, so I had to sell and re-allocate the money. Two more minor aspects: Synthetic ETFs and lending to short sellers. 1) Some ETFs are synthetic, that is, they don't buy all the underlying shares replicating the index, actually owning the shares. Instead, they put the money in the bank and enter a swap with a counter-party, typically an investment bank, that promises to pay them the equivalent return of holding that share portfolio. In this case, you have (implicit) credit exposure to that counter-party - if the index performs well, and they don't pay up, well, tough luck. The ETF was relying on that swap, never really held the shares comprising the index, and won't necessarily cough up the difference. 2) In a similar vein, some (non-synthetic) ETFs hold the shares, but then lend them out to short sellers, earning extra money. This will increase the profit of the ETF provider, and potentially decrease your expense ratio (if they pass some of the profit on, or charge lower fees). So, that's a good thing. In case of an operational screw up, or if the short seller can't fulfil their obligations to return the shares, there is a risk of a loss.  These two considerations are not really a factor in normal times (except in improving ETF expense ratios), but during the 2009 meltdown they were floated as things to consider. Mutual funds and ETFs re-invest or pay out dividends. For a given mutual fund, you might be able to choose, while ETFs typically are of one type or the other. Not sure how tax treatment differs there, though, sorry (not something I have to deal with in my jurisdiction).  As a rule of thumb though, as alex vieux says, for a popular index, ETFs will be cheaper over the long term. Very low cost mutual funds, such as Vanguard, might be competitive though. You cannot do a 1031 exchange with stocks, bonds, mutual funds, or ETFs.  There really isn't much difference between an ETF and its equivalent index mutual fund. Both will have minimal capital gains distributions. I would not recommend selling an index mutual fund and taking a short-term capital gain just to buy the equivalent ETF. "The iShares Barclays Aggregate Bond - ticker AGG, is a ETF that may fit the bill for you. It's an intermediate term fund with annual expenses of .20%. It ""seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Barclays Capital U.S. Aggregate Bond Index""" "Couple of clarifications to start off: Index funds and ETF's are essentially the same investments.  ETF's allow you to trade during the day but also make you reinvest your dividends manually instead of doing it for you.  Compare VTI and VTSAX, for example.  Basically the same returns with very slight differences in how they are run.  Because they are so similar it doesn't matter which you choose. Either index funds and ETF's can be purchased through a regular taxable brokerage account or through an IRA or Roth IRA.  The decision of what fund to use and whether to use a brokerage or IRA are separate. Whole market index funds will get you exposure to US equity but consider also diversifying into international equity, bonds, real estate (REITS), and emerging markets.  Any broker can give you advice on that score or you can get free advice from, for example, Future Advisor.  Now the advice: For most people in your situation, you current tax rate is currently very low.  This makes a Roth IRA a very reasonable idea.  You can contribute $5,500 for 2015 if you do it before April 15 and you can contribute $5,500 for 2016.  Repeat each year.  You won't be able to get all your money into a Roth, but anything you can do now will save you money on taxes in the long run.  You put after-tax money in a Roth IRA and then you don't pay taxes on it or the gains when you take it out. You can use Roth IRA funds for college, for a first home, or for retirement. A traditional IRA is not recommended in your case.  That would save you money on taxes this year, when presumably your taxes are already low. Since you won't be able to put all your money in the IRA, you can put the rest in a regular taxable brokerage account (if you don't just want to put it in a savings account).  You can buy the same types of things as you have in your IRA.   Note that if your stocks (in your regular brokerage account) go up over the course of a year and your income is low enough to be in the 10 or 15% tax bracket and you have held the stock for at least a year, you should sell before the end of the year to lock in your gains and pay taxes on them at the capital gains rate of 0%. This will prevent you from paying a higher rate on those gains later.  Conversely, if you lose money in a year, don't sell. You can sell and lock in losses during years when your taxes are high (presumably, after college) to reduce your tax burden in those years (this is called ""tax loss harvesting""). Sounds like crazy contortions but the name of the game is (legally) avoiding taxes.  This is at least as important to your overall wealth as the decision of which funds to buy. Ok now the financial advisor.  It's up to you.  You can make your own financial decisions and save the money but it requires you putting in the effort to be educated.  For many of us, this education is fun.  Also consider that if you use a regular broker, like Fidelity, you can call up and they have people who (for free) will give you advice very similar to what you will get from the advisor you referred to.  High priced financial advisors make more sense when you have a lot of money and complicated finances.  Based on your question, you don't strike me as having those.  To me, 1% sounds like a lot to pay for a simple situation like yours." Some other suggestions: Index-tracking mutual funds. These have the same exposure as ETFs, but may have different costs; for example, my investment manager (in the UK) charges a transaction fee on ETFs, but not funds, but caps platform fees on ETFs and not funds! Target date funds. If you are saving for a particular date (often retirement, but could also be buying a house, kids going to college, mid-life crisis motorbike purchase, a luxury cruise to see an eclipse, etc), these will automatically rebalance the investment from risk-tolerant (ie equities) to risk-averse (ie fixed income) as the date approaches. You can get reasonably low fees from Vanguard, and i imagine others. Income funds/ETFs, focusing on stocks which are expected to pay a good dividend. The idea is that a consistent dividend helps smooth out volatility in prices, giving you a more consistent return. Historically, that worked pretty well, but given fees and the current low yields, it might not be smart right now. That said Vanguard Equity Income costs 0.17%, and i think yields 2.73%, which isn't bad. You could use a stock-only ISA and invest in Exchange Traded Funds (ETFs). ETFs are managed mutual funds that trade on open exchanges in the same manner as stocks. This changes the specific fund options you have open to you, but there are so many ETFs at this point that any sector you want to invest in is almost certainly represented. You should consider dollar cost averaging your investments. Retirement account is perfect for that - it's long term with periodic deposits. Overall, by investing in stocks now for a long term, you'll benefit more because the stocks are at their low(er) point. What you may be looking for are multi-manager ETFs; these invest in a basket of diversified funds to get the best out of all of the funds. The problem with multi-manager funds is, of course, that you pay fees twice; once to the fund itself and once to each of the funds in the fund. The low fees on ETFs mean that it is not very profitable to actively maintain one so there are not many around (Googling returns very few). Noting that historic success doesn't guarantee future success and that fees are being applied to fees these funds only really benefit from diversification of manager performance risk. partial source of information and an example of a (non-outperforming) Multi-manager ETF: http://www.etfstrategy.co.uk/advisorshares-sets-date-for-multi-manager-etf-with-charitable-twist-give-53126/ If liquidity and cost are your primary objectives, Vanguard is indeed a good bet.  They are the walmart of finance and the absolute best at minimizing fees and other expenses. Your main portfolio holding should be VTI, the total stock market fund.  Highly liquid and has the lowest fees out there at 0.05%.  You can augment this with a world-minus-US fund if you want.  No need to buy sector or specific geography funds when you can get the whole market for less. Add some bond funds and alternative investments (but not too much) if you want to be fully diversified.