Series 31 — Futures Managed Funds Examination Quick Review

Quick FINRA Series 31 review covering futures mechanics, managed futures funds, commodity pools, disclosures, sales practice, and exam traps.

Quick Review Focus

This independent quick review is for candidates preparing for FINRA’s Series 31 — Futures Managed Funds Examination (Series 31). Use it as a fast review before moving into topic drills, mock exams, and detailed explanations.

The Series 31 is not just a “futures vocabulary” exam. It tests whether you can recognize how managed futures products are structured, sold, disclosed, supervised, and regulated. Many missed questions come from confusing futures account mechanics with commodity pool investor mechanics, or from treating futures products like ordinary securities funds.

High-Yield Exam Map

AreaWhat to Know ColdCommon Trap
Futures mechanicsLong/short positions, daily settlement, margin, leverage, contract specs, order typesTreating futures margin as a down payment instead of a performance bond
Hedging and speculationLong hedge vs short hedge, basis risk, spreads, offsetting positionsSaying a hedge “eliminates” risk
Futures optionsCalls, puts, writers, premium, intrinsic value, assignment into futuresForgetting that exercise of an option on a futures contract creates a futures position
Managed futuresCommodity pools, managed accounts, CTAs, CPOs, performance fees, liquidity limitsAssuming all investors face direct margin calls
Commodity pool interestsPool structure, limited partner/LLC interests, offering documents, NAV, redemption termsTreating commodity pools like fully liquid mutual funds
DisclosureRisk disclosure, fees, conflicts, past performance, hypothetical results, break-even analysisBelieving signed disclosure cures an unsuitable recommendation
Sales practiceSuitability, fair communications, no guarantees, no cherry-picked performanceOverstating diversification or “non-correlation”
RegulationCFTC, NFA, FINRA, exchanges, FCMs, IBs, CPOs, CTAs, APsSaying FINRA is the primary futures market regulator
Supervision and ethicsWritten procedures, approvals, records, complaints, anti-fraud, allocation fairnessChoosing an answer that protects production over customer protection

Core Roles and Regulators

TermHigh-Yield Meaning
CFTCFederal regulator for U.S. commodity futures, commodity options, and related derivatives markets.
NFAFutures industry self-regulatory organization; establishes and enforces rules for many futures professionals.
FINRASecurities industry self-regulatory organization and the official provider identified for the Series 31 exam. FINRA-administered exams may test futures-related products sold by securities professionals.
ExchangeMarketplace where standardized futures and options on futures trade under exchange rules.
ClearinghouseInterposes itself between buyers and sellers, marks positions to market, and reduces counterparty risk among clearing members.
FCM — Futures Commission MerchantCarries futures accounts and may accept money, securities, or property to margin futures transactions.
IB — Introducing BrokerSolicits or accepts orders but generally does not accept customer funds for margining futures transactions.
CPO — Commodity Pool OperatorOperates or solicits funds for a commodity pool.
CTA — Commodity Trading AdvisorAdvises others, often for compensation, about trading futures, commodity options, or related instruments.
AP — Associated PersonIndividual who solicits customers, orders, or funds, or supervises those who do, for a regulated futures business.
Commodity poolPooled investment vehicle that trades commodity interests. Investors own interests in the pool, not individual futures positions.
Managed futures accountIndividual customer account managed by a CTA or trading manager; the customer may have direct account-level exposure and obligations.

Fast Decision Rules

  • Carries accounts and accepts margin funds? Think FCM.
  • Introduces customers but does not hold margin funds? Think IB.
  • Operates a pooled vehicle trading futures? Think CPO.
  • Gives futures trading advice for compensation? Think CTA.
  • Solicits customers or supervises solicitation activity? Think AP.
  • Sets futures market rules and enforces member obligations? Think NFA/exchange, with CFTC oversight.

Futures Mechanics You Must Be Able to Apply

Futures Contract Basics

A futures contract is a standardized exchange-traded agreement to buy or sell an underlying commodity or financial instrument at a future date under specified terms.

Key contract terms:

Contract FeatureWhy It Matters
Underlying assetCommodity, financial instrument, index, currency, rate, or other reference item
Contract size / multiplierConverts price movement into dollar gain or loss
Delivery or cash settlement termsDetermines how the contract is settled if not offset
Expiration monthDetermines contract life and delivery/settlement window
Tick size and tick valueSmallest price movement and dollar value of that movement
Daily price limitsMay restrict price movement and make liquidation difficult during volatile markets
Margin requirementPerformance bond amount required to support the position

Long vs Short Futures

PositionProfits IfLoses IfTypical Use
Long futuresFutures price risesFutures price fallsSpeculate on rising prices or hedge future purchase costs
Short futuresFutures price fallsFutures price risesSpeculate on falling prices or hedge inventory/production value

For a long futures position:

\[ \text{Long futures P/L}=(\text{Exit price}-\text{Entry price})\times\text{contract multiplier}\times\text{contracts} \]

For a short futures position:

\[ \text{Short futures P/L}=(\text{Entry price}-\text{Exit price})\times\text{contract multiplier}\times\text{contracts} \]

If the question gives tick value, use:

\[ \text{P/L}=\text{ticks moved}\times\text{tick value}\times\text{contracts} \]

Daily Settlement and Mark-to-Market

Futures are marked to market daily. Gains and losses are credited or debited as prices move.

Do not miss these points:

  • Futures margin is not a partial purchase price.
  • Margin is a performance bond.
  • Daily settlement can create cash needs even if the position is later profitable.
  • A customer can be required to deposit additional margin after adverse price movement.
  • The clearinghouse helps ensure contract performance, but it does not protect a customer from trading losses.

Margin Vocabulary

TermMeaningExam Trap
Initial marginAmount required to open or maintain a new futures positionNot the same as securities Regulation T margin
Maintenance marginMinimum equity level required to maintain the positionFalling below it can trigger a margin call
Variation marginFunds paid or received due to daily mark-to-marketDaily cash flow matters
Margin callDemand for additional fundsIgnoring a margin call can lead to liquidation
LeverageSmall margin controls large notional valueMagnifies both gains and losses

A leveraged return may look large because the denominator is margin, not the full notional exposure:

\[ \text{Return on margin}=\frac{\text{futures profit or loss}}{\text{margin deposit}} \]

Commodity Pool Investor vs Managed Account Customer

IssueCommodity Pool InvestorIndividual Managed Futures Account
OwnsInterest in a pool or fundIndividual account positions
Trading decisionsMade by CPO/CTA/trading managerMade by customer or authorized CTA
Margin callsUsually handled at pool levelCustomer may receive direct margin calls
LiabilityOften limited to investment, subject to offering termsCustomer may be responsible for account deficits
LiquidityDepends on redemption termsDepends on account terms and market liquidity
TransparencyMay be limited to reportsUsually account-level statements available

Exam trap: A commodity pool may use leveraged futures internally, but that does not mean each investor receives individual futures confirmations or individual margin calls.

Hedging, Speculation, Basis, and Spreads

Hedging vs Speculation

ActivityMain PurposeExample
SpeculationProfit from price movementBuy futures expecting price increase
Short hedgeProtect against falling pricesProducer sells futures against future production
Long hedgeProtect against rising pricesProcessor buys futures to protect future input cost
SpreadProfit from price relationship changesBuy one contract month and sell another

Long Hedge vs Short Hedge

SituationRiskHedge
Customer will buy commodity laterPrice may riseBuy futures
Customer owns commodity or will produce itPrice may fallSell futures
Customer owes fixed future deliveryReplacement cost may riseBuy futures
Customer holds inventoryInventory value may fallSell futures

Basis Risk

Basis is the relationship between the cash price and the futures price. Many materials define it as:

\[ \text{Basis}=\text{cash price}-\text{futures price} \]

Use the convention given in the question if it specifies one.

High-yield points:

  • Futures and cash prices usually move together, but not perfectly.
  • A hedge can reduce price risk while leaving basis risk.
  • Basis can strengthen or weaken.
  • A perfect hedge is rare.
  • The exam likes answer choices that say “reduce” or “manage” risk rather than “eliminate” risk.

Spreads

Spread TypeDescription
Calendar / intracommodity spreadSame commodity, different delivery months
Intercommodity spreadRelated commodities, such as one energy product versus another
Intermarket spreadSame or similar commodity traded in different markets
Bull spreadStructured to benefit from a relative price increase in the near or selected contract
Bear spreadStructured to benefit from a relative price decrease in the near or selected contract

Spreads may require less margin than outright positions, but they still carry risk.

Futures Options Quick Review

An option on a futures contract gives the buyer a right involving the underlying futures contract.

InstrumentBuyer HasBuyer OutlookWriter Has
Call on futuresRight to buy the futures contractBullishObligation if assigned
Put on futuresRight to sell the futures contractBearishObligation if assigned
ConceptQuick Review
PremiumPrice paid by option buyer and received by writer
Intrinsic value — callMax of zero or futures price minus strike
Intrinsic value — putMax of zero or strike minus futures price
Time valuePremium minus intrinsic value
ExerciseCan create a futures position
Writer riskCan be substantial because assignment creates obligations

Common exam traps:

  • A long option buyer’s maximum loss is generally the premium paid.
  • An option writer’s risk can be much greater than the premium received.
  • Options can hedge, speculate, or create complex spread exposure.
  • Do not describe option strategies as risk-free.

Managed Futures and Commodity Pool Structures

Why Managed Futures Are Sold

Managed futures may be used for:

  • Diversification
  • Exposure to commodity and financial futures markets
  • Trend-following or systematic strategies
  • Potential non-correlation with traditional securities
  • Professional trading management

But be careful:

  • Non-correlation does not mean negative correlation.
  • Diversification does not eliminate loss.
  • Trend-following can underperform in choppy or range-bound markets.
  • Managed futures can experience sharp drawdowns.
  • High fees can materially reduce investor returns.

Common Structures

StructureDescriptionKey Risk
Commodity poolMultiple investors pool funds to trade commodity interestsFees, leverage, liquidity limits, manager risk
Limited partnership poolGeneral partner manages; limited partners invest passivelyLimited partner liquidity and reliance on manager
LLC commodity poolMembers own interests; manager operates vehicleOperating agreement controls rights
Managed accountInvestor account managed by CTADirect account exposure and possible margin obligations
Fund of funds / multi-advisor poolAllocates to multiple CTAs or poolsAdditional fee layers and manager selection risk

Limited Partnership / Pool Concepts

Party or DocumentRole
General partner / managerOperates the pool, selects trading advisors, manages operations
Limited partners / membersInvest capital and generally do not manage daily operations
Subscription agreementInvestor agrees to purchase interests and makes required representations
Offering documentDescribes risks, fees, conflicts, strategy, redemption terms, and other material terms
Net asset valueAssets minus liabilities; often basis for subscriptions/redemptions
Redemption provisionsDetermine when and how investors can exit

NAV per unit:

\[ \text{NAV per unit}=\frac{\text{total assets}-\text{total liabilities}}{\text{units outstanding}} \]

CPO vs CTA

Question ClueLikely Answer
Organizes and operates a poolCPO
Solicits money for pooled futures tradingCPO
Provides futures trading adviceCTA
Has discretionary authority over individual futures accountsCTA
Selects multiple trading advisors for a poolCPO or pool manager function
Trades for a pool under advisory agreementCTA

Exam trap: A CPO can also have CTA responsibilities, but the question usually asks for the role based on the activity described.

Disclosure Documents and Investor Information

What Must Be Fairly Disclosed

Managed futures disclosure should prepare the investor for material risks and economic realities.

High-yield disclosure areas:

  • Futures and options are leveraged and volatile.
  • Losses can be substantial.
  • Pool interests may be illiquid.
  • Redemptions may be limited, delayed, suspended, or subject to conditions.
  • Fees can be layered and may be charged even during poor performance.
  • Incentive fees may create conflicts.
  • Trading advisors may have conflicts when managing multiple accounts.
  • Past performance does not guarantee future results.
  • Hypothetical or simulated results are not actual trading results.
  • Tax treatment may differ from ordinary securities investments.
  • Strategy descriptions must not overstate precision or certainty.
  • Material conflicts must be disclosed, not hidden in vague language.

Fees and Break-Even

Common fee types:

Fee TypeWhat It Means
Management feeUsually charged based on assets or NAV
Incentive / performance feeBased on profits or appreciation, often subject to stated terms
Brokerage commissionsTrading-related costs
Administrative expensesAccounting, legal, audit, reporting, custody, and operations
Selling compensationCompensation paid for distribution, if applicable
Redemption or withdrawal feeCost imposed on early or certain withdrawals
Organizational/offering expensesCosts of forming or offering the pool

Break-even analysis is important because it shows how much the pool must earn before investors are economically ahead after fees and expenses.

\[ \text{Break-even concept}=\text{return required to cover fees, expenses, and charges before investor profit} \]

Exam trap: A pool with strong gross trading gains can still produce weak investor returns after fees.

Performance Presentation

Performance ClaimExam-Safe Treatment
Actual performanceMust be accurate, supportable, and not cherry-picked
Past profitable periodsMust not be presented as guaranteed or typical
Hypothetical resultsMust be clearly identified and accompanied by appropriate limitations
Pro forma combinationsMust not mislead investors into believing they are actual historical results
Testimonials / endorsementsMust not imply guaranteed or typical outcomes
Manager track recordMust be relevant, fairly presented, and not misleading

Common traps:

  • “This CTA has never lost money” is a red flag.
  • “Back-tested results prove the system works” is misleading if not clearly qualified.
  • “Low correlation means the pool will rise when stocks fall” overstates the concept.
  • “Limited partnership means no risk” confuses liability limits with investment risk.

Suitability and Sales Practice

Suitability Review

Before recommending a managed futures product, the representative should understand both the customer and the product.

Customer FactorWhy It Matters
Investment objectiveSpeculation, diversification, income, preservation, hedging, or growth
Risk toleranceFutures strategies can be volatile
Financial conditionCustomer must be able to withstand loss and illiquidity
Liquidity needsPool interests may not be redeemable on demand
Time horizonStrategy may require patience and may have lockups
Investment experienceCustomer must understand complex products
Tax statusPass-through or mark-to-market concepts may matter
ConcentrationOverconcentration in alternatives or one manager increases risk
Net worth and incomeHelps assess capacity for loss
Existing portfolioDiversification claim must be evaluated in context

Suitability Traps

Bad ReasoningCorrect Exam Approach
“The customer signed the risk disclosure, so any sale is permitted.”Disclosure does not cure an unsuitable recommendation.
“The customer is wealthy, so the product is suitable.”Wealth alone is not suitability.
“The product is diversified, so it is conservative.”Diversification does not eliminate futures risk.
“The customer wants high returns, so futures are suitable.”Risk tolerance, liquidity, financial condition, and understanding still matter.
“The pool has a great track record, so it is suitable.”Past performance does not determine suitability.
“Accredited status means no further review is needed.”Eligibility and suitability are different concepts.

Communications With the Public

Communications about managed futures should be fair, balanced, and not misleading.

Avoid or reject language such as:

  • “Guaranteed returns”
  • “No risk”
  • “Safe way to trade futures”
  • “Consistent profits in all markets”
  • “Hedge eliminates losses”
  • “Institutional strategy available with no downside”
  • “Limited partnership means your money is protected”
  • “Past returns show what you should expect”
  • “The system cannot fail”

Better wording is cautious and balanced:

  • “May provide diversification benefits”
  • “Can be volatile and may lose money”
  • “Uses leverage, which can magnify gains and losses”
  • “Past performance is not a guarantee”
  • “Liquidity is subject to offering terms”
  • “Fees and expenses reduce returns”

Account Opening, Authorization, and Customer Funds

Account and Subscription Review

Depending on the structure, relevant documents may include:

  • New account information
  • Customer identification information
  • Risk disclosures
  • Subscription agreement
  • Offering memorandum or disclosure document
  • Limited partnership or operating agreement
  • Advisory agreement
  • Power of attorney or trading authorization
  • Fee schedule
  • Redemption or withdrawal provisions
  • Acknowledgment of receipt of required disclosures

Discretionary Authority

If someone other than the customer makes trading decisions, focus on:

  • Written authorization
  • Clear scope of authority
  • Supervisory approval
  • Records of trades and allocations
  • Fair treatment of accounts
  • Ongoing review for abuse or unsuitable trading

Exam trap: Time-and-price discretion for a specific order is different from broad discretion to decide what, when, and how much to trade.

Customer Funds

High-yield principles:

  • Customer funds must be handled according to applicable futures and securities rules.
  • FCM customer fund segregation is a major investor-protection concept.
  • An IB generally introduces business and does not accept customer funds for margining futures transactions.
  • Misuse, commingling, or misappropriation of customer funds is a serious violation.
  • Pool assets must be used for pool purposes and accounted for properly.

Regulation and Compliance Quick Review

Who Regulates What?

EntityHigh-Yield Role
CFTCFederal futures and commodity derivatives oversight
NFAFutures self-regulatory rules, registration oversight, enforcement, ethics, communications
FINRASecurities industry SRO and official Series 31 exam provider; relevant where securities professionals sell managed futures interests
SECMay be relevant where pool interests or fund structures are securities
ExchangesContract terms, trading rules, position limits, delivery procedures
ClearinghousesClearing, settlement, margining among clearing members
FirmsMust supervise associated persons and maintain compliant procedures

Registration and Exemptions

For exam purposes, do not assume an exemption unless the question gives it. If a person or firm is soliciting, advising, operating a pool, or handling futures customer business, registration or membership analysis is usually relevant.

Look for these clues:

ActivityCompliance Concern
Soliciting pool investmentsCPO/AP and securities sales issues may arise
Advising on futures tradingCTA issues may arise
Carrying futures accountsFCM issues may arise
Introducing futures accountsIB issues may arise
Supervising solicitorsPrincipal/supervisory responsibility
Advertising performanceNFA/FINRA communication standards
Handling fundsSegregation, custody, anti-fraud, records

Anti-Fraud and Ethical Conduct

Always reject answers that permit:

  • False or misleading statements
  • Omission of material facts
  • Guarantees of profits
  • Unauthorized trading
  • Misuse of customer funds
  • Churning or excessive trading
  • Front-running
  • Manipulation
  • Fictitious trades
  • Wash sales
  • Prearranged trades intended to deceive the market
  • Cherry-picking winning trades for favored accounts
  • Unfair allocation of block trades
  • False performance advertising
  • Failure to supervise known red flags
  • Concealing complaints
  • Retaliating against customers or whistleblowers

Supervision and Records

A compliant supervisory system should include:

  • Written supervisory procedures
  • Designated supervisors
  • Review of new accounts and subscriptions
  • Review and approval of communications
  • Review of discretionary accounts
  • Complaint handling
  • Documentation of customer disclosures
  • Training and continuing oversight
  • Recordkeeping for orders, confirmations, statements, advertisements, and correspondence
  • Escalation of suspicious activity or misconduct

Exam decision rule: If one answer says “document, disclose, approve, and supervise” and another says “handle informally,” the formal compliance answer is usually safer.

Tax and Reporting Concepts

The Series 31 can test tax and reporting concepts at a practical level. Do not give tax advice on the exam; recognize the product issue.

High-yield points:

  • Commodity pools are often organized as pass-through entities.
  • Investors may receive tax reporting documents rather than simple dividend reporting.
  • Taxable income may differ from cash distributions.
  • Futures contracts may have mark-to-market tax concepts depending on the instrument and account.
  • Fees and expenses affect economic return and may affect tax reporting.
  • Customers should be directed to tax advisers for personal tax consequences.

Exam trap: A distribution is not automatically “profit,” and a profitable tax allocation is not the same as cash received.

Calculations and Interpretation

Futures Profit/Loss

If the question gives:

  • Entry price
  • Exit price
  • Contract size or multiplier
  • Number of contracts
  • Long or short direction

Then calculate price movement in the correct direction and multiply.

Fast process:

  1. Identify long or short.
  2. Determine whether price movement helps or hurts.
  3. Multiply price change by contract multiplier.
  4. Multiply by number of contracts.
  5. Add sign: gain or loss.

Margin Call Logic

EventResult
Futures position moves against customerAccount equity decreases
Equity falls below required levelMargin call may be issued
Customer does not meet margin callPosition may be liquidated
Liquidation still leaves deficitCustomer may owe additional funds

NAV is affected by:

  • Trading gains and losses
  • Interest income, if any
  • Management fees
  • Incentive fees
  • Brokerage commissions
  • Operating expenses
  • Contributions and redemptions

Do not ignore expenses. On the exam, if the question asks for investor economics, use net amounts after applicable charges.

Product Risk Review Table

RiskWhat It MeansExam-Friendly Wording
Leverage riskSmall price moves can produce large gains/losses“Magnifies gains and losses”
Liquidity riskPositions or fund interests may be hard to exit“Redemption subject to terms”
Basis riskHedge and cash position may not offset perfectly“Hedge may reduce but not eliminate risk”
Manager riskCTA/CPO decisions may be poor“Investors rely on manager skill”
Strategy riskTrend, spread, or volatility strategy may fail“Strategy may underperform in certain markets”
Fee riskCharges reduce net return“High break-even may be required”
Conflict riskManager compensation or allocation may create conflicts“Must be disclosed and managed”
Operational riskSystems, controls, reporting, or valuation failures“Requires supervision and records”
Tax riskTax treatment may be complex“Customer should consult tax adviser”
Regulatory riskRules and contract terms may change“Compliance monitoring required”

Common Exam Traps and Correct Responses

TrapCorrect Response
Futures margin is described as a down paymentIt is a performance bond
A hedge is said to eliminate all riskIt reduces price risk but may leave basis/liquidity risk
Clearinghouse guarantee is described as customer profit protectionClearing supports contract performance, not trading profits
Commodity pool investor is treated as direct futures account ownerInvestor owns pool interest; pool trades
CTA and CPO are used interchangeablyCTA advises; CPO operates/solicits for a pool
Signed risk disclosure is used to justify unsuitable saleDisclosure does not replace suitability
Hypothetical performance is treated as actualMust be clearly identified and qualified
Limited liability is treated as no investment riskInvestor can lose investment and face offering-specific risks
Low correlation is treated as guaranteed diversification benefitCorrelation can change and losses can occur
High net worth is treated as automatic suitabilityMust still assess objectives, risk, liquidity, experience
Performance fee is ignoredFees reduce net returns and create conflicts
Redemption is assumed to be immediatePool documents control liquidity
FINRA is treated as the futures market regulatorCFTC/NFA and exchanges are central to futures regulation
Oral approval is treated as enough for discretionWritten authority and supervision are key

Last-Minute Decision Rules

When choosing between close answer choices:

  1. Customer protection beats sales convenience.
  2. Written disclosure beats verbal reassurance.
  3. Suitability is required even when risks are disclosed.
  4. “May” and “can” are safer than “will” and “guaranteed.”
  5. Futures leverage magnifies outcomes.
  6. Pool investors and futures account customers are not the same.
  7. Past performance is never a guarantee.
  8. Hypothetical results require special caution.
  9. Conflicts must be disclosed and managed.
  10. Supervision must be documented.

Quick Practice Plan Before Mock Exams

Use this review, then move into independent companion practice:

Practice BlockDrill Focus
Block 1Futures long/short P/L, margin, daily settlement, order types
Block 2Hedging, basis, spreads, options on futures
Block 3Commodity pools, CPO vs CTA, managed accounts, fees, NAV
Block 4Disclosure documents, performance presentation, break-even, conflicts
Block 5Suitability, communications, customer accounts, supervision
Block 6Mixed regulatory and ethics questions
Block 7Full mock exam with detailed explanations

For each missed question, ask:

  • Did I misread the role: FCM, IB, CPO, CTA, AP, regulator?
  • Did I confuse pool-level risk with account-level risk?
  • Did I ignore leverage or daily settlement?
  • Did I choose a sales answer instead of a compliance answer?
  • Did I treat disclosure as a substitute for suitability?
  • Did I overlook fees, liquidity limits, or conflicts?

Final Review Checklist

Before sitting for the Series 31, make sure you can confidently explain:

  • Long futures vs short futures
  • Initial margin, maintenance margin, and variation margin
  • Why futures margin is not a down payment
  • Daily mark-to-market
  • Long hedge vs short hedge
  • Basis risk
  • Futures options and assignment consequences
  • Commodity pool vs managed futures account
  • CPO vs CTA
  • FCM vs IB
  • NAV and fee impact
  • Break-even concept
  • Risk disclosure and performance advertising limits
  • Suitability factors for managed futures
  • Why signed disclosure does not cure an unsuitable recommendation
  • Customer fund handling and segregation concepts
  • Anti-fraud, fair allocation, and supervision duties
  • How CFTC, NFA, FINRA, exchanges, FCMs, CPOs, and CTAs fit together

Practical Next Step

After reviewing this quick review, move directly into Series 31 topic drills and a mixed question bank using original practice questions with detailed explanations. Focus first on futures mechanics and managed futures disclosure, then use mock exams to test whether you can apply the rules under exam-style wording.