Investing For beginners
ETFs and Funds: Owning the Whole Market in One Trade
Most people should own funds before they own individual stocks. These guides explain how ETFs and index funds are built, what they cost, how to compare them, and which kinds carry risks the name does not advertise.
A fund lets you buy hundreds of companies in one trade at a cost measured in basis points. This section explains how that works: how an ETF is created and redeemed, why its market price tracks the value of the holdings, what an index fund is really tracking, and where your money goes when you pay an expense ratio. It also covers the fund types that carry risks their names do not advertise.
It is written for beginners, and it is the section most readers should finish before they buy a single stock. Owning the whole market takes one decision a year instead of fifty. If you are choosing between a workplace plan's fund menu and a brokerage account, the guides on cost and on ETFs versus mutual funds answer the questions that actually change your outcome over a working lifetime.
The pillar explains the ETF structure end to end. Index funds then covers the arithmetic of why low cost beats most active managers over long periods, and the ETF versus mutual fund guide settles which wrapper suits which account. Expense ratios puts real dollars on a thirty year holding. The last three guides handle sector funds, leveraged and inverse funds, and bond funds, each of which behaves differently from the broad products that come before them.
Funds connect outward in two directions. The portfolio section decides which funds you hold, in what proportion, and when to rebalance them. The bond fund guide leans on the fixed income section for duration and yield, because a bond ETF has no maturity date and never hands your principal back on a fixed day. Sector funds use the same eleven GICS sectors the heatmap tool tracks every session.
What Is an ETF? How Exchange-Traded Funds Work
One share, hundreds of holdings, a few dollars a year in fees. Here is the machinery behind an exchange-traded fund and what it costs you to use it.
Read the guide →Start with the basics
- beginner
Index Funds Explained: Why Owning the Market Beats Most Managers
An index fund buys the whole list and charges almost nothing for it. The reason that works is arithmetic, and the arithmetic is worth seeing written out.
- beginner
ETF vs Mutual Fund: Which Should You Own?
Same holdings, different plumbing. The differences that matter are pricing, minimums, automatic investing and the tax bill you did not choose to trigger.
- beginner
Expense Ratios Explained: What a Fund's Fee Really Costs
The fee never shows up on your statement, which is exactly why it is worth writing out in dollars. Here is what each tenth of a percent takes over a working life.
- beginner
REITs Explained: Property Income Without the Property
Rent, without a tenant calling you at midnight. The structure that makes the yield possible also explains the debt, the share issuance and the tax treatment.
- beginner
Mutual Funds Explained: NAV, Share Classes and Loads
The price is calculated, never quoted. Inside that daily number sit the share class, the load, the 12b-1 fee and the trading decisions of every other holder.
Go deeper
- intermediate
Sector ETFs: The 11 Sectors and How to Use Them
A sector fund is an overweight on top of a portfolio that already owns every sector. Here is how to work out the weight you are actually taking, in numbers.
- intermediate
Leveraged and Inverse ETFs: Why They Decay Over Time
A 3x fund promises three times the index for one day. Over a choppy week the arithmetic produces something quite different, and here it is written out day by day.
- intermediate
Bond ETFs Explained: Duration, Yield and What You Actually Own
You own a rolling portfolio that is always being replaced, so there is no date when your money comes back. Duration is the number that tells you what that costs.
ETFs & Funds: common questions
What is an ETF in simple terms?
A fund that trades on an exchange like a stock. It holds a basket of assets, usually tracking an index, and you can buy or sell it at any point during market hours at the price it is quoting.
Are ETFs better than mutual funds?
In a taxable account, usually yes, because the creation and redemption process lets ETFs avoid passing capital gains to holders. Mutual funds still win where you want automatic contributions or your workplace plan only offers them.
What is a good expense ratio?
Broad index ETFs charge roughly 0.03% to 0.10% a year. Anything above about 0.50% needs a reason. On a $100,000 balance, 0.60% costs $600 a year while 0.05% costs $50.
Why do leveraged ETFs lose money over time?
They reset leverage daily, so each session compounds off a new base. In a choppy market a 3x fund can end lower even when the index finishes flat, because a percentage loss needs a larger percentage gain to recover.
How many ETFs do I actually need?
Two or three cover most portfolios: a total U.S. or global stock fund, a bond fund, and sometimes an international fund. Adding more usually buys overlapping holdings rather than extra diversification.