Standard II(B): Market Manipulation
Do not distort prices or artificially inflate trading volume with the intent to mislead market participants. Manipulation is information-based (false or misleading statements) or transaction-based (trades creating a false picture of price or activity). Legitimate strategies, even ones that move prices, are allowed.
Before this: Standard II(A): Material Nonpublic Information
On the exam
- Demonstrate the application of the Code of Ethics and Standards of Professional Conduct to situations involving issues of professional integrity
- Recommend practices and procedures designed to prevent violations of the Code of Ethics and Standards of Professional Conduct
- Identify conduct that conforms to the Code and Standards and conduct that violates the Code and Standards
Demonstrate II(B), recommend compliance practices and identify compliant conduct. Expect "is this trading strategy manipulation?" items. The decisive phrase is intent to mislead, and the usual wrong answers call any price-moving trade manipulation.
How deeply to learn each part
- Know the idea
- Understand it in general. It frames other topics, but you will not calculate with it.
- Use it
- Understand it well enough to solve a question with it. Recognize when it applies.
- Memorize
- Learn it by heart. The exam will not give it to you.
You know this one. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still do.
You tested strong here. The full lesson is folded away. The takeaways, formulas and checkpoint below are your quick refresher, and the checkpoint is a fair test of whether you still know it.
What does Standard II(B) require?
You must not engage in practices that distort prices or artificially inflate trading volume with the intent to mislead market participants. Market manipulation damages every investor by lowering confidence in the fairness of the market, which raises risk premiums and discourages participation.
Memorize
There are two kinds, and the exam asks you to tell them apart.
- Information-based manipulation means spreading false or misleading information to induce trading by others. The classic form is the pump and dump : issue misleading positive information or over-optimistic projections to push a price up, then sell into it.
- Transaction-based manipulation covers trading where you knew, or should have known, that your actions could distort the price of a security. Examples are wash trading and matched orders that give an impression of activity or price movement, and securing a dominant position to exploit a related derivative or the underlying asset (a market squeeze ).
- Information-based manipulation Memorize misleading statements
- False rumors to induce trading by others
- Pump and dump talk up what you hold, then sell into the rise
-
- Transaction-based manipulation Memorize misleading trades
- False activity or price wash trades, matched orders
- Dominant position squeeze a derivative or the underlying asset
-
- Legitimate strategy Memorize no intent to mislead
- Trades on a genuine view valuation, tax, arbitrage
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Why is intent the test?
Trading on a genuine strategy, for example exploiting what you believe is a mispricing, is not banned. Genuine investment views, tax-motivated trades and arbitrage all move prices. What separates them from manipulation is the purpose. Disclosing a strategy can help show there was no intent to mislead.
Exam tip If a question says the trade moved the price, ignore it. Look for a false statement or a false picture of activity.
Where do the lines fall?
| Situation | Verdict |
|---|---|
| A fund manager posts an untrue claim that a small-cap’s CEO is about to resign, then shorts the stock | Violation (information-based) |
| A trader buys and sells the same thinly traded bond between two of the firm’s accounts so it looks liquid | Violation (transaction-based) |
| A manager buys a large block because of a long-term thesis and the price rises | Not a violation |
| A fund corners the deliverable supply of a commodity to force futures shorts to pay up | Violation (squeeze) |
| An investor sells losers before year-end for tax reasons and buys similar assets | Not a violation |
What are the indicators of manipulation?
The Handbook gives a non-exhaustive list of indicators of manipulation . They are warning signs that compliance teams and regulators look for. Intent to mislead still decides.
Memorize
- Orders that stay open for an unusually short time.
- Orders priced above the market price.
- Orders with no change in beneficial ownership.
- Orders meant to move the bid or offer, and then cancelled (spoofing ).
- Orders on both sides of the market via different platforms.
- Coordinated action by traders in a thin market.
- Orders open an unusually short time Memorize in and out almost at once
- Orders above the market price Memorize priced to move the market
- No change in beneficial ownership Memorize the same owner on both sides
- Orders meant to move the bid or offer, then cancelled Memorize spoofing
- Orders on both sides via different platforms Memorize a hidden round trip
- Coordinated action in a thin market Memorize several traders acting together
Compliance practices
Firms can spot and stop manipulation with five practices:
- Anti-spoofing procedures, so staff know that placing orders they intend to cancel is not allowed.
- Real-time surveillance across platforms, since a scheme can be spread over several venues.
- Automated order management and pre-trade controls, which block suspect orders before they reach the market.
- Controls on trading algorithms, so that a program cannot manipulate by design or by accident.
- Trade exception reporting, which flags unusual trades for review.
- Anti-spoofing procedures Use it rules against placing orders you mean to cancel
- Real-time surveillance across platforms Use it one view of all venues
- Automated order management and pre-trade controls Use it block suspect orders before they reach the market
- Controls on trading algorithms Use it test and supervise them
- Trade exception reporting Use it flag unusual trades for review
Go deeper Why a liquidity illusion harms other investors
A stock that looks heavily traded invites buyers who believe they can get out easily. They pay for liquidity that is not real, and the people who arranged the trades gain at their expense. Over time, a market full of such tricks loses trust, and investors demand a higher return for taking part.
Go deeper Social media promotion
Online posts reach many people quickly, which makes them an easy tool for a pump and dump. A post that praises a holding without saying you own it, or exaggerates its prospects, can be information-based manipulation. The same rules apply as for any other medium.
Memorize this
MemorizeStandard II(B): two types and one test
| Type | What it is | Examples |
|---|---|---|
| Information-based | Spreading false or misleading information to induce trading | False rumors; pump and dump; exaggerated projections |
| Transaction-based | Trades that give a false impression of activity, price or liquidity, or a dominant position used to force prices | Wash trades, matched orders; squeeze of a derivative or its underlying asset |
| Legitimate | Trades on a genuine view, tax or arbitrage purposes | Not manipulation even if the price moves |
Memory hook Talk it up or trade it up: information or transactions. The test is the same for both: was it meant to mislead?
Know it cold Violation needs intent to mislead (or knowing the trades would distort). A price move alone is never enough.
MemorizeIndicators of manipulation (a non-exhaustive list)
| Indicator | In short |
|---|---|
| Orders open for an unusually short time | In and out before anyone can trade against them |
| Orders above the market price | Priced to move the market, not to deal |
| Orders with no change in beneficial ownership | Buyer and seller are the same owner |
| Orders meant to move the bid or offer, then cancelled | Spoofing: show interest, then withdraw |
| Orders on both sides via different platforms | A hidden round trip |
| Coordinated action by traders in a thin market | Together they can move a price that trades little |
Memory hook Fast in, fast out, same owner, both sides, or a crowd in a thin market: the orders look real but are not meant to deal.
Know it cold An indicator is a warning sign, not proof. Intent to mislead still decides.
- Orders open an unusually short time Memorize in and out almost at once
- Orders above the market price Memorize priced to move the market
- No change in beneficial ownership Memorize the same owner on both sides
- Orders meant to move the bid or offer, then cancelled Memorize spoofing
- Orders on both sides via different platforms Memorize a hidden round trip
- Coordinated action in a thin market Memorize several traders acting together
- Anti-spoofing procedures Use it rules against placing orders you mean to cancel
- Real-time surveillance across platforms Use it one view of all venues
- Automated order management and pre-trade controls Use it block suspect orders before they reach the market
- Controls on trading algorithms Use it test and supervise them
- Trade exception reporting Use it flag unusual trades for review
- Information-based manipulation Memorize misleading statements
- False rumors to induce trading by others
- Pump and dump talk up what you hold, then sell into the rise
-
- Transaction-based manipulation Memorize misleading trades
- False activity or price wash trades, matched orders
- Dominant position squeeze a derivative or the underlying asset
-
- Legitimate strategy Memorize no intent to mislead
- Trades on a genuine view valuation, tax, arbitrage
-
How it is asked
-
Self-trading to look liquid
A trader buys and sells the same stock between two firm accounts before an offering. Violation?
Yes, II(B), transaction-based. Trap: "no client lost money" or II(A).
-
Large legitimate purchase
A pension fund buys 4% of a company on valuation research and the price rises 12%. Violation?
No. Genuine purpose, no intent to mislead. Trap: "it moved the price".
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Spot the warning sign
A trader enters large bids to lift the best bid, then cancels them within seconds. What does this look like?
An indicator of manipulation (orders meant to move the bid, then cancelled). Intent decides whether it is a violation.
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Classify the scheme
An analyst exaggerates a report on a stock they hold, then sells into the spike. Which type?
Information-based (pump and dump). Trap: transaction-based.
Exam traps
- Calling any large trade that moves the price manipulation. Intent to mislead is what matters.
- Missing that spreading true information is not manipulation, while spreading false or misleading information is.
- Confusing II(B) with II(A) when no inside information is involved. Manipulation concerns misleading others, not secrets.
- Thinking harm to a specific client is required. The damage is to market confidence and efficiency.
Checkpoint
3 exam-style questions. About 90 seconds each.
1A trader repeatedly buys and sells the same small-cap stock between two accounts the firm controls so that the stock appears actively traded before a client offering. Did the trader violate the Standards?
2A large pension fund buys 4% of a company's shares over two weeks based on its valuation research, and the price rises 12%. Did the fund manager violate Standard II(B)?
3An analyst holding a micro-cap stock publishes an exaggerated report and then sells the position into the price spike. This is best described as:
Key takeaways
- No distorting prices or inflating volume with the intent to mislead.
- Information-based (false rumors, pump and dump) and transaction-based (wash trades, squeezes).
- Legitimate strategies that happen to move prices are fine.
- Indicators such as orders open for an unusually short time or both-sided orders on different platforms are warning signs, not proof.
- Compliance practices: anti-spoofing procedures, real-time surveillance, pre-trade controls, algorithm controls and exception reporting.
All Ethical and Professional Standards formulas, every lesson
Practice exam-style questions on Guidance for Standard II: Integrity of Capital Markets
Questions about this lesson?
Where this comes back
- Standard III(A): Loyalty, Prudence, and Care Guidance for Standard III: Duties to Clients
Questions candidates ask
What is market manipulation under the CFA Standards?
Practices that distort prices or artificially inflate trading volume with the intent to mislead market participants. It covers information-based manipulation, such as false rumors, and transaction-based manipulation, such as wash trades and squeezes.
Is a large trade that moves the price manipulation?
No. A large trade based on a genuine view, a tax reason or an arbitrage is legitimate. What makes it manipulation is the intent to mislead, which shows in false statements or trades designed to create a false picture.
What is a pump and dump?
Talking up an investment you own with misleading or overly optimistic information, then selling once the price has risen. It is information-based manipulation and breaches II(B).
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