What it means
The opposite arrangement is advisory management, where the adviser recommends a trade and you must approve it before anything happens. Under a discretionary mandate you sign an investment management agreement and an investment policy statement, and the manager then acts on your behalf.
You keep ownership of the assets; you hand over the decision-making, not the money itself. Businesses and wealthy individuals use this because markets move faster than approval chains.
A corporate treasurer with $40,000,000 of surplus cash cannot convene a board meeting every time a bond matures, and a charity's investment committee that meets quarterly would otherwise sit frozen between meetings. Fees are usually charged as a percentage of assets under management, billed quarterly, sometimes with a performance fee on returns above an agreed benchmark.
Because the fee is a percentage of the whole portfolio rather than a charge per trade, the manager has no incentive to trade excessively, which is one of the structural attractions of the model. Control comes from the mandate rather than from approving trades.
A well-written policy statement sets the target asset mix, minimum credit quality, maximum position size, permitted instruments and any exclusions, and the manager reports against those limits. If the mandate is vague, the client has effectively handed over far more discretion than they intended.
The common variant is the model portfolio service, where many clients are placed into the same handful of standardised portfolios rather than receiving a genuinely bespoke design. It is cheaper and still discretionary, but the individual tailoring people imagine they are buying is often quite limited.
In practice
Real-world examples.
Example
A manufacturing group's pension trustees appoint a discretionary manager for their $60,000,000 fund, with a mandate capping equities at 55% and banning single holdings above 4%. The manager rebalances after a strong equity run without needing trustee sign-off.
Example
A founder receives $9,000,000 after selling her software company and hands $6,000,000 to a discretionary manager while keeping $3,000,000 in cash for a property purchase. She reviews performance twice a year and never approves an individual trade.
Example
A regional charity moves from advisory to discretionary management after missing a bond opportunity because its committee could not meet in time. The new agreement requires quarterly reporting and excludes tobacco and gambling holdings entirely.
Formula
Calculation
Annual management fee = portfolio value x annual fee rate
Net return = gross return - fees
A family holding company places $2,500,000 with a discretionary manager on an all-in fee of 0.85% a year, billed quarterly.
Annual fee: $2,500,000 x 0.85% = $21,250
Quarterly billing: $21,250 / 4 = $5,312.50
Over the year the portfolio returns 7% before fees.
Gross return: $2,500,000 x 7% = $175,000
Net return in dollars: $175,000 - $21,250 = $153,750
Net return as a percentage: $153,750 / $2,500,000 = 6.15%
So the fee consumes 0.85 percentage points of the 7% gross result, leaving 6.15% for the client.Case study
Seen in the real world.
Northvale Foundry is a fictional mid-sized engineering firm used purely as an illustrative case. After selling a division it held $12,000,000 of surplus cash and asked a discretionary manager to run it on a conservative mandate: at least 70% in short-dated government and investment grade corporate bonds, no single corporate issuer above 3%, and no holdings that could not be sold within five business days.
In the first year the manager delivered 5.2% gross, or $624,000, against a fee of 0.60%, which came to $72,000. The net figure of $552,000 was just over four times the $132,000 the same money had been earning at 1.1% in the company's operating account, and the board's involvement amounted to two meetings.
The friction came in year two, when the finance director asked why the portfolio had not sold a holding he disliked. The manager pointed to the mandate, which said nothing about that sector, and the board learned that the time to express a view is when the policy statement is written, not afterwards.
Watch out
Common mistakes.
- Believing discretionary management means the manager takes legal ownership of the assets, when the client remains the owner and the assets sit with a separate custodian.
- Signing a vague mandate and then complaining about specific trades that the mandate clearly permitted.
- Comparing managers on headline fee alone while ignoring trading costs, custody charges and performance fees that sit underneath it.
Questions
People also ask.
Can I overrule a discretionary manager on a single holding?
Usually only by amending the mandate in writing, since the whole point of the arrangement is that individual trades do not need your approval.
How is a discretionary manager kept accountable?
Through the investment policy statement, regular performance reporting against an agreed benchmark, and the regulatory duty to act in the client's best interests.
Is discretionary management only for very large portfolios?
No, model portfolio services accept far smaller amounts, though genuinely bespoke mandates typically start in the hundreds of thousands of dollars.
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