The cost of a good or service.

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80
votes
12answers
53k views

In the stock market, why is the “open” price value never the same as previous day's “close”?

This is something that is mind-boggling to me, and it is particularly obvious in candlestick graphs: Why is the open value never the same as the previous day's close value? This is something I just ...
11
votes
3answers
14k views

How does a dealer (or market maker) earn the bid-ask spread on a stock?

If I am correct, dealers purchase assets for their own accounts, and later sell them for a profit from their inventory. But the spreads is the difference between buy (or "bid") prices and sell (or "...
6
votes
1answer
544 views

Who sets the price and provides the quoted price values for stocks?

I somewhat understand that the price of stocks is determined by the market, but who exactly changes those prices that we see listed on Yahoo! Finance for example? If I own a share in a company listed ...
3
votes
4answers
14k views

Is there a mathematical formula to determine a stock's price at a given time?

I have been trying to find exact information on how stock prices are determined but still I haven't found any exact mathematical formulas how it happens. Wikipedia states: When prospective buyers ...
4
votes
2answers
4k views

What will happen when a bid price is higher than an ask price?

Let's say, there are three bid prices 100, 101, and 102, and three ask prices 101, 103, 104. What will happen, will ask:101 sell to bid:101 or bid:102, if the dealer is going to make the 101 to 101 ...
6
votes
4answers
506 views

When is a good time to invest in gold? In what situations is the price of gold likely to drop?

When is a good time to invest in gold? What are situations likely to trigger a drop in gold prices? What are alternatives to gold?
7
votes
3answers
705 views

Got a large cash sum, wanna buy stocks. Should I buy all at once, or spread it over time?

Suppose that I just received a large sum of money, that I want to use to buy stocks. Is there an advantage to split my stocks purchases over a period of time, to protect me against the risk that ...
2
votes
2answers
517 views

Is the best ask price the ask at the “top” of the order book? What is the “top” of the book?

In the level 2 book from BATS with live data, the right hand part of the page shows the best Bid(s) and the Best Ask(s). Example: How come the best Ask is not at the top of the book? From what i ...