Only on certain weekdays, fortunately. I like my weekends free, so that I can catch up on work I haven't done during the week! (And very rarely, if I have time, go on a rail trip somewhere, on the cheapest possible tickets...)
Back to investments, I have a few general questions:
- How are things like share prices determined? I know it's something to do with "the market", but that's a somewhat nebulous entity. If, for example, everyone suddenly sells their shares in British Airways, the share price will drop massively (I think!), but who chooses the new prices(s)? In my head, I envisage an economics graduate working 150 hours a week sat in a darkened room, pressing a "reduce price now" button, but I doubt that's what happens in practise!
- "Tracker" funds, such as the FTSE 100 one mentioned by @ainsworth74, how do these actually work? Is the money simply spread across each company in the FTSE 100, so that any changes average out?
Prices are determined on the various exchanges and are posted accordingly. Prices are an amalgamation of buyers and sellers actions. At any one time there are Market Makers, people who are always offering shares for sale and will always buy shares. Typically investment banks but also brokers and dealers. These "shares for sale" are known as bids and offers. A Bid is the price selected by a buyer to buy a stock, while the Offer is the price at which the seller is offering to sell the stock.
News, sentiment and company fundamentals drive the buying and selling activity of humans and robots and the net result of that activity is posted on the exchange as the price. The more bids are transacted the more the price rises, the more offers are transacted the more the price falls. Millions of these happen sometimes per second, but typically per minute. That's called volume. Volume can also drive price, if its very high, then others may execute a trade based on volume, this ties in to sentiment.
In short prices are the net result of bids and offers, but those bids and offer prices can be driven by lots of factors. If an institutional investor wants to dump their shares, then the market can be flooded with lots of offers, which may well drag the price lower due to more trades being executed at lower prices. The reverse is also true. When Warren Buffet comes to buy stock, if word gets out, then others may pile in behind him and so more Bids are executed = higher price posted on the exchange.
Its all done electronically and virtually instantaneously. Bid and offer prices are correlated to market prices and also move almost instantaneously. What you end up seeing are domino effects, these are the famous flash crashes, for which circuit breakers are now in place to stop free fall prices.
News tends to have the biggest effect on daily prices, earnings in particular. Look at Facebook (Meta) yesterday and Amazon. One missed their earnings forecast and one beat. One went down and one went up. Many people try and time these plays, to "time the market", but that is basically just gambling unless you have inside knowledge of the company cash flow.
In short, yes. You can see how much each fund holds in a company expressed as a % of the fund. Some funds are comprised 1% of Apple stock for example.
That is precisely the aim of a tracker fund. To track the sector or wider market it is invested in so that if any one stock has a bad day, you dont lose significant capital. The analogy of many eggs in many baskets is often used.