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CISI CFC Market abuse and insider dealing Guide

CISI Combating Financial Crime study guide for market abuse and insider dealing, with learning objectives, UK control cues, and exam traps.

Market abuse and insider dealing belongs to the CISI Combating Financial Crime Fraud and Market Abuse exam topic, weighted at 4%. Study it as a UK financial-crime control lesson: the paper usually asks whether you can classify the risk, place the right authority or obligation, and choose the next defensible control, escalation, or reporting step.

Learning Objectives

  • Describe market abuse and explain why abusive conduct can damage market integrity and investor confidence.
  • Distinguish insider dealing, unlawful disclosure, and market-manipulation behaviour within a market-abuse framework.
  • Recognize how suspicious trading patterns, rumours, or information leaks can signal potential market abuse.
  • Understand why watchlists, restricted lists, surveillance, and escalation processes support market-abuse controls.
  • Identify the role of securities-law offences and market-conduct regimes in addressing abusive trading conduct.
  • Recognize why misuse of non-public information by employees, advisers, issuers, or connected parties can create insider-dealing risk.

Key Concepts

ConceptWhat to know for CISI CFC review
Market abuseConduct that harms market integrity, such as insider dealing, unlawful disclosure, manipulation, misleading signals, or improper use of information.
Inside informationNon-public, price-sensitive information that could materially affect investment decisions if made public.
Insider dealingTrading, encouraging trading, or improperly using inside information for advantage.
Unlawful disclosurePassing inside information to another person without a legitimate reason.
Market manipulationCreating false or misleading signals about supply, demand, price, volume, or market activity.
Surveillance controlMonitoring orders, trades, communications, personal account dealing, watchlists, and restricted lists for abuse indicators.

Market Abuse vs Ordinary Fraud

Market abuse is a financial-crime topic because it damages fair and orderly markets. It differs from ordinary fraud because the harm may be to market integrity, price formation, investors, or information fairness, not only to one direct victim. A customer or employee may not steal money directly but may misuse information, manipulate prices, or create misleading market signals.

The exam often asks whether the facts point to insider dealing, unlawful disclosure, or manipulation. Do not collapse all suspicious trading into generic “fraud” if the facts involve inside information, trading before an announcement, rumours, wash trades, matched orders, spoofing, or misleading market signals.

Market Abuse Decision Sequence

Use a structured sequence before choosing the answer. Market-abuse questions often include facts that sound like ordinary misconduct, but the decisive issue is whether market integrity or information fairness is affected.

StepQuestion to askWhy it matters
identify the information or market signalis the issue inside information, misleading orders, rumours, price movement, or volume?separates information misuse from manipulation
identify the actoremployee, adviser, issuer, client, trader, friend, journalist, analyst, or connected partydetermines access, duty, and evidence sources
identify the conducttrading, encouraging, disclosing, cancelling, layering, matched orders, or spreading rumoursmaps the facts to the abuse type
identify the timingbefore announcement, near market close, around client order, or after rumourtiming often creates the suspicious pattern
identify the control failureinformation barrier, restricted list, surveillance, personal account dealing, or communications controlpoints to the correct firm response
preserve evidenceorders, trades, chats, emails, access logs, call recordings, and approvalssupports investigation and reporting decisions

The stronger answer usually does two things: classify the conduct and preserve the evidence needed to prove or disprove the concern.

Market-Abuse Typology Map

ConductCommon clue
Insider dealingTrading before a takeover, earnings release, financing, rating change, or regulatory announcement.
Unlawful disclosurePassing confidential issuer or deal information to a friend, client, journalist, or trader without a legitimate purpose.
Encouraging dealingTelling another person to trade while holding inside information, even without trading personally.
ManipulationWash trades, matched orders, spoofing, layering, marking the close, or misleading volume.
Rumour-based abuseSpreading false or misleading information to move price or liquidity.
Personal account dealing breachEmployee trades around client orders, restricted-list securities, or deal information.

Information Misuse

Inside-information scenarios are high-yield because the person who trades may not be the person who originally received the information. A banker, adviser, issuer employee, lawyer, analyst, operations employee, or connected family member may pass information that later leads to trading.

Fact patternStronger classification
employee trades before a takeover announcementpotential insider dealing
employee tells friend to buy but does not trade personallyunlawful disclosure or encouraging dealing
analyst uses confidential deal information in a recommendationmisuse of non-public price-sensitive information
personal account trade occurs after wall-crossingpersonal-account dealing and information-barrier concern
client order information is used ahead of executionmisuse of confidential order information
confidential issuer information appears in chatinformation leakage and evidence-preservation issue

The exam trap is to focus only on personal profit. Insider dealing can involve trading, encouraging another person to trade, or disclosing information improperly. The employee may still create market-abuse risk even if the profit is made by a friend, family member, client, or connected party.

Manipulation and Misleading Signals

Manipulation focuses on false or misleading market signals rather than hidden information. The suspicious conduct may be an order, cancellation pattern, trade sequence, rumour, price support, or end-of-day activity.

Manipulation patternWhat it may indicate
wash tradesartificial activity without genuine change of beneficial ownership
matched orderscoordinated trading to create false volume or price signals
spoofing or layeringvisible orders are placed to move price or depth, then cancelled
marking the closetrades near close influence closing price or valuation
pump-and-dump rumoursfalse statements inflate price before selling
abusive short-and-distortfalse negative rumours pressure price downward
quote stuffing or disruptive ordersorder activity disrupts normal market functioning

The control response should not be a generic “monitor more.” It should preserve order-book data, cancellation history, trade timing, communications, account links, client instructions, and price/volume context.

Watchlists, Restricted Lists, and Surveillance

Watchlists and restricted lists are preventive controls. A watchlist can help compliance monitor securities where the firm has sensitive information. A restricted list can prevent or limit trading, research publication, marketing, or employee activity where the conflict or information risk is too high. The exam may test which list is appropriate and whether escalation is needed before a trade or communication proceeds.

Surveillance is the detection layer. It should connect order activity, trade timing, price movement, news events, communications, personal account dealing, client instructions, and employee access to information. Strong controls also preserve evidence and support suspicious transaction or order reporting where required.

ControlWhat it supports
Information barriersLimits improper sharing of inside or confidential information.
WatchlistsEnables heightened monitoring where the firm holds sensitive information.
Restricted listsBlocks or restricts activity where risk is too high.
Trade surveillanceDetects suspicious orders, trades, timing, volume, and price impact.
Communications monitoringIdentifies leaks, rumours, collusion, or instructions inconsistent with policy.
Personal account dealing rulesControls employee trading around confidential information and restricted securities.

Watchlist vs Restricted List

The two lists are often confused. A watchlist usually supports heightened monitoring while activity may continue under controls. A restricted list usually prohibits or limits activity because the risk is too high or the firm has sensitive information that cannot be safely managed through monitoring alone.

SituationMore likely control
firm is advising an issuer on confidential transactionwatchlist for monitoring and possibly restricted list for affected activity
employee wants to trade a security connected to a mandaterestricted-list or pre-clearance block may be needed
firm has sensitive but not yet public informationinformation-barrier and watchlist controls
research publication could reveal or misuse inside informationrestricted review or publication hold
suspicious order pattern appears after news leaksurveillance escalation and evidence preservation
security is widely discussed but no inside information is heldmonitor for manipulation or rumour abuse rather than automatic restriction

Exam answers should avoid treating lists as decoration. The list must connect to a workflow: who adds the security, who can see it, what activity is blocked or monitored, what evidence is preserved, and when the restriction is removed.

Surveillance Evidence Map

Evidence sourceWhat it helps test
order and trade recordstiming, size, direction, price impact, cancellations, and execution pattern
communicationsleaks, rumours, instructions, coordination, or intent
wall-crossing recordswho received inside information and when
restricted-list historywhether controls should have blocked or monitored the activity
personal account dealing recordsemployee trades, approvals, and conflicts
client account linkswhether related accounts traded together or around news
news and announcement timelinewhether trading preceded price-sensitive information becoming public
access logswhether the trader or employee accessed confidential files
surveillance alertswhether the system detected and escalated the pattern

The evidence map matters because market-abuse investigations are timing-sensitive. A trade may look suspicious only when compared with announcement timing, communication records, and access to information.

Escalation and Reporting Logic

When market-abuse concerns arise, the firm should normally preserve evidence, avoid tipping off the suspected person, escalate to compliance or surveillance specialists, assess regulatory-reporting obligations, and review whether the control failure is isolated or systemic.

ScenarioBetter response
suspicious trading before announcementpreserve trades, communications, access logs, and escalate
employee discloses deal informationinvestigate unlawful disclosure and review information-barrier controls
potential manipulation in client ordersreview order pattern, communications, and client intent
personal account trade breaches pre-clearanceinvestigate employee conduct and list-control failure
restricted-list security was tradedstop further activity where appropriate and review override evidence
rumour appears linked to tradingpreserve communications and trade chronology
surveillance alert closed with generic notequality-review closure and remediate investigation standards

Do not assume the correct answer is to confront the trader immediately. Premature contact can destroy evidence, create tipping-off-style risk in a broader investigation, or allow explanations to be coordinated. Preserve the audit trail first.

Market Abuse vs Other Financial-Crime Risks

Market abuse can overlap with fraud, money laundering, or corruption, but it should not be swallowed by them.

If the facts emphasize…Think first about…
trading before a confidential announcementinsider dealing or unlawful disclosure
false statement to move market pricemarket manipulation and possible fraud
proceeds from abusive trading are moved through accountsmarket abuse plus laundering of proceeds
employee receives bribe to leak informationbribery/corruption plus unlawful disclosure
client order is misused for personal tradingmarket abuse, conflict, and personal-account controls
false invoices fund trading accountfraud and laundering, not necessarily market abuse unless trading conduct is abusive

The exam rewards precise classification. If the conduct damages market integrity through information misuse or misleading signals, market abuse is central even if another financial-crime issue also appears.

Common Pitfalls

  • treating inside information as safe because it came from an employee rather than an issuer announcement
  • focusing only on completed trades and missing attempted orders or encouraged dealing
  • ignoring communications evidence when the issue is information leakage
  • using a generic AML response for a market-conduct problem
  • failing to preserve order, trade, communication, and access records before escalation
  • assuming market abuse requires direct theft from a customer
  • overlooking personal account dealing and connected-party trading
  • treating a restricted list as effective without checking whether it blocked or monitored activity
  • closing surveillance alerts without documenting the trade chronology and evidence reviewed
  • confronting the suspected person before preserving records

Sample Exam Question

An employee working on a confidential takeover mandate tells a friend that the target company’s shares are likely to rise soon. The friend buys shares before the announcement. Which control response is most appropriate?

A. Treat the issue as ordinary customer suitability because the friend made the trade. B. Escalate potential insider dealing or unlawful disclosure, preserve communications and access records, and review watchlist/restricted-list controls. C. Ignore the issue because the employee did not trade personally. D. Treat the issue only as money laundering because a profit may result.

Answer: B. The facts point to misuse and disclosure of inside information. The firm should escalate, preserve evidence, and review information-barrier, list, surveillance, and employee-dealing controls.

Study Notes

For final review, separate market-abuse questions into information misuse and market-signal manipulation. Information misuse focuses on inside information, disclosure, trading, and encouragement. Manipulation focuses on misleading price, volume, supply, demand, or market activity.

Also practise linking each scenario to an evidence set. Insider dealing needs trade timing, access logs, wall-crossing records, and communications. Manipulation needs order-book activity, cancellations, trade sequence, market data, and communications. That habit makes the control response more precise.

Key Takeaways

  • Market abuse protects market integrity, not just individual victims.
  • Insider dealing can involve trading, encouraging trading, or unlawful disclosure.
  • Watchlists, restricted lists, surveillance, information barriers, and personal-account controls are core firm responses.
  • Strong answers distinguish market abuse from generic fraud or AML issues.
  • Evidence preservation is central because timing, access, and communications often determine whether the conduct is abusive.

Continue Review

Return to the CISI Combating Financial Crime guide for the full exam-topic table, or use the CFC Cheat Sheet for threat classification, UK authority cues, and final review prompts.

Revised on Friday, May 29, 2026