A broker holds, routes, records — and gates what you can do.
- “Commission-free” is a line item, not a relationship
- Protection schemes cover the FIRM failing, up to a limit
- No scheme covers your shares falling
What this is about
You cannot walk up to a stock exchange and buy a share. Every private investor's order reaches the market through a broker — a regulated firm that holds your cash, sends your orders, and keeps the record of what you own. Most people sign up with one without ever asking what the firm actually does, which is why this lesson exists before any lesson about orders.
The four jobs
It holds your money and your shares. When you deposit cash, the broker holds it; when you buy, the shares are held for your benefit — usually in the broker's own systems under a nominee arrangement, not as paper in your name. What you legally have is a claim against a regulated firm, which is why the regulation matters more than the app design.
It routes your orders. You tap buy; the broker decides where that order goes — to an exchange, to another trading venue, or to a firm that pays your broker for the privilege of filling it (payment for order flow, legal in some countries, banned in others). You get a fill either way; where it happened is mostly invisible to you.
It keeps the record. Every fill, every dividend received, every fee — the broker's statement is the authoritative history of your account. Tax authorities generally treat it as such.
It gates what you can do. Order types, market access, whether you can trade with borrowed money — all of it is the broker's menu, not the market's. Two customers of two brokers face different menus for the same share.
What "commission-free" means
It does not mean the broker works for free. Firms that charge no commission are paid in other ways: interest earned on the cash you leave idle, payment for order flow where legal, currency conversion fees, premium subscriptions, lending out shares. None of that is a scandal — it is a business model — but "free" describes the line item, not the relationship. The lesson How fees quietly eat your returns picks up what the visible and invisible costs do over time.
What protects you
Regulated brokers are subject to rules about keeping client assets separate from the firm's own money, and most developed markets run an investor protection scheme that covers client assets up to a limit if the firm itself fails — the details and ceilings differ by country, and the scheme covers the firm failing, never your investments losing value. The practical checks before opening an account: which regulator licenses the firm, which protection scheme applies, and what the limit is. All three answers should be easy to find on the broker's own site; difficulty finding them is itself an answer.
A worked example
You deposit 1,000 with a commission-free broker and buy shares of one company at 50. The broker routes the order, it fills at 50.02 — the spread and routing cost you 2 hundredths on entry that no statement itemises — and the shares appear in your account, held in the broker's nominee name with you as the beneficial owner. A dividend of 4 arrives months later; the broker credits it, withholds any tax it must, and the statement records all of it. Nothing here required the exchange to know you exist.
Now the firm has a terrible year — not you, the broker. Your shares are not the broker's property, the segregation rules exist for exactly this moment, and if the firm actually fails, the protection scheme covers client assets up to its national limit. What no scheme anywhere covers: the share you chose falling from 50 to 30. The broker's failure and your investment's failure are different risks with different protections, and knowing which is which is the whole point of this lesson.
What this does not tell you
It does not tell you which broker to choose. Fees, market access, regulation and interface all differ, and this Academy does not recommend firms.
It does not tell you your money is safe. Protection schemes cover the broker failing, up to a limit, under conditions. They never cover investments losing value, which is the risk that actually plays out for most people.
It does not cover trading with borrowed money. Margin accounts change the relationship fundamentally — the broker can sell your positions without asking. Nothing in this Academy assumes or encourages margin.
Where to see this in the app
Nowhere — and that is the point worth a sentence. SigniBull is not a broker: no cash is held, no orders reach any market, and the privacy page says plainly that no broker login exists anywhere in your account. The order ticket here is practice for the day you stand in front of a real one.