Stock markets

What moves a share price

In the short run, price is the last agreed trade between people who disagree. Earnings, interest rates, inflation, regulation, commodity costs and the company’s own financing all change what those people are willing to pay. None of them produces a fair value you can look up. A news headline is an input, not a valuation.

Liquidity matters as much as the story. A large company on the NYSE, Nasdaq or London Stock Exchange can usually be bought in modest size without moving the price much. A thinly traded name on a smaller venue can gap through a stop because there was no bid. Average daily volume is a clue, not a guarantee of an exit.

Major venues

The United States concentrates a large share of global listed equity value on the NYSE and Nasdaq. London remains a primary venue for UK listings and for international companies that chose a UK quote. Nasdaq Helsinki is the main Finnish equity venue and is part of Nasdaq’s Nordic markets. ASX is the main Australian listing venue, with CHESS used for holding many of those securities. There are many other exchanges. A broker that says “global stocks” is describing a subset it has actually connected.

How investors hold shares

• Direct registration or an issuer-sponsored holding, which is uncommon for active traders.
• A broker nominee or custodian, which is the ordinary retail arrangement. You are the beneficial owner; the nominee is on the register.
• A sponsored holding, such as CHESS sponsorship in Australia, where the broker sponsors you onto the exchange’s system.
• A fund or ETF that owns a basket, so you hold the fund, not each company.

Costs

Commission is the visible number and often the small one. Foreign-exchange conversion, custody fees, stamp taxes where they apply, ADR fees, and the spread between bid and ask all sit in the same decision. UK stamp duty reserve tax is a real cost on many UK share purchases and does not apply in the same way to overseas shares or to most CFDs, which is one reason a CFD can look cheaper while being a different instrument. Current tax rates should be read from official guidance, not from a broker advertisement.

Risks

Companies fail, dilute their owners, and cut dividends. Markets close, halt names, and reprice overnight when you cannot trade. Currency moves can erase a gain on a foreign share when translated into your spending currency. Leverage, if you add it, accelerates all of this. Diversification across companies reduces single-name risk and does nothing to remove a broad equity decline.

A practical path

Learn the difference between a market order and a limit order, then look at a single company’s reports before looking at a chart. Use the position-size calculator if you are setting a stop, and treat the output as arithmetic, not as permission to trade. When you compare platforms, start from the country pages so availability is a verified row rather than a logo on a global page.