Brokers, Accounts and Order Types
How to open a brokerage account, what matters in a broker, why your securities are protected if the broker fails – and when to use market, limit, stop or stop-limit orders.
Key takeaways
- A brokerage account holds your securities. Cash sits alongside it, often swept into a bank or money market fund.
- Your securities are held for you and kept separate from the broker’s own assets (segregation). If a US broker fails, SIPC also covers missing assets up to $500,000.
- Besides market and limit orders there are stop orders, which only activate at a trigger price, and stop-limit orders, which combine both.
- A stop-loss does not guarantee your exit price – in a gap it can fill far below the trigger.
- Judge brokers on total costs, execution quality, protection and tax handling – not only on “$0 commissions”.
To invest in the stock market you need two things: an account to hold your securities and a way to send orders to the market. A broker gives you both. That sounds like paperwork, but this is where you decide how much you pay in costs, how safe your assets are and whether your orders are executed the way you intend.
The brokerage account
A brokerage account is where your securities live – stocks, ETFs, bonds. Cash in the account is usually either held by the broker or “swept” into a partner bank or a money market fund, where it may earn interest.
Opening an account takes a few minutes online: personal details, identity verification, a funding link to your bank account. Most large brokers no longer charge account fees or commissions on stock and ETF trades.
You will also choose an account type. In the US that might be a regular taxable account, an IRA or Roth IRA for retirement, or a custodial account for a child. The UK has ISAs and SIPPs, Germany and Austria have ordinary securities accounts with tax withheld at source. The type of account determines how your gains are taxed – often a bigger lever than any fee.
Who owns the securities?
One of the most important – and least known – facts about brokerage accounts: the securities are held for you, not owned by the broker. In the US, the SEC’s customer protection rule requires brokers to keep customer securities and cash separate from their own business (segregation). If a broker fails, customer accounts are normally transferred to another firm.
If something is missing – because of fraud or poor record-keeping – the Securities Investor Protection Corporation (SIPC) steps in, covering up to $500,000 per customer, of which up to $250,000 can be cash. SIPC does not protect you against market losses, only against a broker’s failure. Cash swept to a bank is usually covered by FDIC deposit insurance instead. In the EU and UK, similar protections apply: securities are segregated, and bank deposits are insured up to €100,000 in the EU or £120,000 in the UK per bank.
What makes a good broker
| Criterion | What to look for |
|---|---|
| Costs | Commissions, but also spreads and execution quality, currency conversion fees, margin rates |
| Execution | Does the broker publish execution-quality statistics? Does it route orders for payment? |
| Product range | Which ETFs, international stocks, bonds and account types are available? |
| Protection | Regulator, SIPC or equivalent membership, how cash is held |
| Tools and taxes | Tax documents, cost-basis tracking, automatic investing |
Order types at a glance
The real skill lies in giving your broker the right instructions.
Market order
A market order executes immediately at the best available price. Simple and fast, but you give up control of the price. Ideal for liquid stocks and ETFs during regular hours.
Limit order
A limit order sets a price boundary: buy at no more than X, sell at no less than X. Ideal when you won’t pay above a certain price or when trading less liquid stocks.
Stop order (stop-loss and buy stop)
A stop order sits dormant until the price reaches a trigger level. Then it becomes a market order.
- A sell stop (stop-loss) sits below the current price. It’s meant to limit losses or protect gains.
- A buy stop sits above the current price. It’s used to buy once a stock breaks through a certain level.
Stop-limit order
A stop-limit order combines the two: when the stop price is hit, a limit order is created instead of a market order. Example: stop at $90, limit at $88. If the stock falls to $90, the broker tries to sell at $88 or better. If it gaps straight to $80, nothing is sold. You trade execution certainty for price certainty.
Trailing stop
A trailing stop is a stop-loss that follows the price. You set a distance, say 10%. If the stock climbs from $100 to $130, the stop moves from $90 to $117. If the stock falls, the stop stays put. This lets you ride gains while protecting part of them.
Which order for which goal?
| Goal | Order |
|---|---|
| Buy now, large liquid stock | Market order |
| Pay no more than X | Buy limit |
| Limit losses, execution more important than price | Stop-loss (stop market) |
| Limit losses, but not at any price | Stop-limit |
| Let gains run but protect them | Trailing stop |
| Buy once a resistance level breaks | Buy stop |
Time in force
Every order also has a time in force: day orders expire at the end of the session, good-'til-canceled (GTC) orders stay open – usually for up to 60 to 180 days depending on the broker. Some brokers also let you decide whether an order may execute in extended hours.
Automatic investing
Most brokers let you invest a fixed amount automatically – say $200 every month into an index fund – using fractional shares. Recurring investments are the simplest and most disciplined way for many people to build wealth. Why this works is covered in the lesson Savings Plans and Asset Allocation.
Summary
Your brokerage account is a safe box for securities held in your name – protected even if the broker fails. Good brokers combine low total costs, solid execution and transparent protection. And the right order type saves you from expensive surprises: limit orders cap the price, stop orders trigger at certain levels, and no order can guarantee a price the market won’t give you.
That completes the foundations of Module 1. In the next module we look at what you can buy – from bonds and ETFs to gold and crypto.
Time to practise
13 short exercises on this lesson – mistakes come back at the end. Then the lesson is complete and joins your review queue.
Test your knowledge
0/401Your US broker goes bankrupt. What normally happens to the ETF shares in your account?
02A stock trades at $100. You want to sell automatically if it drops to $90. Which order fits?
03The stock closes at $95 and opens at $80 the next morning after bad news. What happens to your $90 stop-loss?
04A 10% trailing stop is placed when a stock is at $100. The stock rises to $130. Where is the stop now?