Institutional Trader
An institutional trader trades on behalf of an organisation such as a bank, pension fund, hedge fund or insurance company, usually in large size.
An institutional trader trades for an organisation rather than for themselves. The organisation might be a pension fund, insurer, investment fund, bank or hedge fund. Institutions trade large amounts, so their orders can move prices and they often split trades. Legal definitions of an institutional client differ by country.
- Category
- Trading Basics
- Reading time
- 3 min
- Also called
- Institutional investor, Buy-side trader, Institution
- Updated
Institutional trader in plain words
The classic institutional investors are pension funds and investment funds, though several newer kinds of institution have joined them.1
There are two roles: asset owners supply the money, and asset managers run the investments day to day.1
Investment banks serve them, creating opportunities for pension funds, insurers, other institutions and individuals.2
How institutional trading usually works
Gather capital
Asset owners such as pension funds and insurers provide the money.1
Set a mandate
The fund decides what it may buy and how much risk it can take.
Decide the trade
Portfolio managers choose what to buy or sell.
Execute carefully
Traders split large orders to limit price impact.
Use many venues
Orders may go to exchanges, brokers or block trades.
Report
Results are measured and reported to clients and regulators.
Worked examples
Example 1 — Pension fund buy
Split orderA hypothetical pension fund wants 1,000,000 shares of a stock that trades 2,000,000 a day.
| Order | 1,000,000 |
| Daily volume | 2,000,000 |
Pension funds are among the traditional institutional investors, and an order this size is usually split over days.1
Example 2 — Price impact
Impact costA hypothetical fund buys too fast and pushes the price up 2% before finishing.
| Impact | +2% |
Investment funds, insurers and pension funds dominate the space, so their sheer size makes market impact a real cost.1
Example 3 — Retail vs institution
No impactA hypothetical retail trader buys 50 shares at the same time.
| Retail order | 50 |
| Impact | None |
Small orders rarely move price, which is one edge retail traders have.
Institutional vs retail trader
| Aspect | Institutional | Retail |
|---|---|---|
| Trades for | An organisation | Themselves |
| Order size | Large | Small |
| Price impact | Often real | Usually none |
| Rules | Professional client rules | Retail protections |
Where the idea matters
Order flow
Reading Order Flow.
Volume
Interpreting Volume spikes.
Liquidity
Judging Liquidity.
VWAP
Benchmarking with Volume-Weighted Average Price.
Advantages and disadvantages
Advantages
- Access to research and lower costs.
- Can hold assets for long periods.
- Adds liquidity to markets.
- Professional risk controls.
Disadvantages
- Large orders create price impact.
- Mandates limit what they can buy.
- Can crowd into the same trades.
- Less protection than retail clients.
Going deeper
Read as far as you need. Each level builds on the one before it.
Who they are
Beginner
Traditional institutional investors include pension funds and investment funds, with new institutions alongside them.1
Owners and managers
Intermediate
Asset owners provide capital while asset managers handle day-to-day management of investments.1
Not one group
Advanced
How actively institutions engage with the companies they own varies a lot by type.1 Legal categories of professional or institutional client also differ by country.
Common mistakes
Thinking institutions always win
They make losing trades too.
Copying big trades late
News of them comes after the move.
Treating all institutions alike
Mandates differ.
Ignoring their footprint
Big volume can be institutional.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- Institutional traders trade for organisations.
- Pension funds, insurers and funds are key examples.
- Asset owners provide capital; managers run it.
- Large orders cause price impact.
- Definitions differ by country.
Frequently asked questions
Can an individual be institutional?
Do institutions use brokers?
Are hedge funds institutional?
Further learning
- Order Flow
Order flow.
- Liquidity
Liquidity.
- Slippage
Impact and slippage.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
- OECD. Institutional Investors as Owners: Who Are They and What Do They Do? (opens in a new tab) Checked .
- Financial Conduct Authority. Occasional Paper 15: Quid pro quo? What factors influence IPO allocations to investors? (opens in a new tab) Checked .
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.