What is meant by the term “representative stock list” here?
The meaning is quite literal - a representative stock list is a list of stocks that would reasonably be expected to have about the same results as the whole market, i.e. be representative of an investment that invests in all those stocks. Of course, you don't want to invest in all stocks individually, that would be impractical, but you can either choose a diverse array of stocks that are (should be) representative, as the article recommends, or alternatively choose to invest in an index fund which offers a practical way to invest in all the stocks in the index at once.
"My original plan was to wait for the next economic downturn and invest   in index funds. These funds have historically yielded 6-7% annually   when entered at any given time, but maybe around 8-9% annually when   entered during a recession. These numbers have been adjusted for   inflation. Questions or comments on this strategy? Educate yourself as index funds are merely a strategy that could be applied to various asset classes such as US Large-cap value stocks, Emerging Market stocks, Real Estate Investment Trusts, US Health Care stocks, Short-term bonds, and many other possibilities. Could you be more specific about which funds you meant as there is some great work by Fama and French on the returns of various asset classes over time. What about a Roth IRA? Mutual fund? Roth IRA is a type of account and not an investment in itself, so while I think it is a good idea to have Roth IRA, I would highly advise researching the ins and outs of this before assuming you can invest in one. You do realize that index funds are just a special type of mutual fund, right? It is also worth noting that there are a few kinds of mutual funds: Open-end, exchange-traded and closed-end. Which kind did you mean? What should I do with my money until the market hits another   recession? Economies have recessions, markets have ups and downs. I'd highly consider forming a real strategy rather than think, ""Oh let's toss it into an index fund until I need the money,"" as that seems like a recipe for disaster. Figure out what long-term financial goals do you have in mind, how OK are you with risk as if the market goes down for more than a few years straight, are you OK with seeing those savings be cut in half or worse?" The suffix represents the stock exchange the stock is traded on. N represents the New York Stock Exchange and O represents the Nasdaq. Sometimes a stock can be listed on more than one exchange so the suffix will give you an indication of which exchange the stock is on. For example the Australian company BHP Billiton Ltd is listed on multiple exchanges so is given a different suffix for the different exchanges (especially when the code is the same for each exchange). Below are a few examples of BHP: "If you're talking about a single stock, you greatly underestimate the chances of it dropping, even long-term. Check out the 12 companies that made up the first Dow Jones Industrial Average in 1896. There is probably only one you've heard of: GE. Many of the others are long gone or have since been bought up by larger companies. And remember these were 12 companies that were deemed to be the most representative of the stock market around the turn of the 20th century. Now, if you're talking about funds that hold many stocks (up to thousands), then your question is a little different. Over the long-term (25+ years), we have never experienced a period where the overall market lost value. Of course, as you recognize, the psychology of investors is a very important factor. If the stock market loses half of its value in a year (as it has done a few times), people will be inundated with bad news and proclamations of ""this time it's different!"" and explanations of why the stock market will never recover. Perhaps this may be true some day, but it never has been thus far. So based on all the evidence we have, if you hold a well-diversified fund, the chances of it going down long-term (again, meaning 25+ years) are basically zero." Markets tend to go up over time, so most things you could buy would make money. A benchmark is meant to represent the market as a whole (or a subset that is relevant to what you are trading), so you can tell if your specific choices helped or hurt your return. As an example, say you pick two financial stocks, Citi and Goldman.  They get you a return of 10% for the year, so you think you made good choices.  But if the financial sector as a whole had a return of 20%, your choices weren't actually that great. Market Makers are essentially just there to process the buys and sells of traders, so just like you and I buy and sell at the ask and bid prices they do to. They are just completing the process of making our orders a reality. Market makers are just representative of brokers, meaning that when you place your order at ask or bid, you are placing that particular brokers order at ask or bid. People often say that certain brokers have too many shares and claim that they are games when really that just means that there happen to be a lot of people using a particular broker all at once, or more troubling, perhaps even company execs using a broker, to sell a large amount of shares. "There is one other factor that I haven't seen mentioned here.  It's easy to assume that if you buy a stock, then someone else (another stock owner) must have sold it to you.  This is not true however, because there are people called ""market makers"" whose basic job is to always be available to buy shares from those who wish to sell, and sell shares to those who wish to buy.  They could be selling you shares they just bought from someone else, but they also could simply be issuing shares from the company itself, that have never been bought before. This is a super oversimplified explanation, but hopefully it illustrates my point." That's up to you. If you instruct your broker to sell shares purchased in specific lots, they can do that -- but doing so requires that you and/or they track specific fractional lots forever afterwards so you know what is still there to be sold. FIFO simplifies the bookkeeping. And I am not convinced selecting specific lots makes much difference; the government gets its share of your profits sooner or later. "With my current, limited knowledge (see end), I understand it the following way: Are share prices really described as ""memoryless""?  Yes.  Is there a   technical meaning of the term? What does it really mean? The meaning comes from Markov Models: Think of the behavior of the stock market over time as a Markov Chain, i.e. a probabilistic model with states and probabilistic transitions. A state is the current price of all stocks of the market, a transition is a step in time. Memoryless means that transitions that the stock market might make can be modelled by a relation from one state to another, i.e. it only depends on the current state. The model is a Markov Chain, as opposed to a more general Stochastic Process where the next state depends on more than the current state. So in a Markov Chain, all the history of one stock is ""encoded"" already in its current price (more precisely in all stock's prices).  The memorylessness of stocks is the main statement of the Efficient Market Theory (EMT). If a company's circumstances don't change, then a drop in its share price is going to be followed by a rise later.  So if the EMT holds, your statement above is not necessarily true. I personally belief the EMT is a good approximation - only large corporations (e.g. Renaissance Technologies) have enough ressources (hundreds of mathematicians, billions of $) to be able to leverage tiny non-random movements that stem from a not completely random, mostly chaotic market.  The prices can of course change when the company's circumstances change, but they aren't ""memoryless"" either. A company's future state is influenced by its past. In the EMT, a stock's future state is only influenced by its past as much as is encoded in its current price (more precisely, the complete market's current state). Whether that price was reached by a drop or a rise makes no difference.  The above is my believe, but I'm by far no finance expert. I am working professionally with probabilistic models, but have only read one book on finance: Kommer's ""Souverän investieren mit Indexfonds und ETFs"". It's supposed to contain many statements of Malkiel's ""A Random Walk Down Wall Street""."