Who this entry is for — Anyone who sees the name of a stock, index, currency or commodity at a broker and needs to understand which right or contract they are actually buying.
A financial instrument is the right, security or contract through which an exposure is assumed. In European Union law, the term has a technical scope defined by MiFID II and its Annex I: among other categories, it includes transferable securities, money-market instruments, units in collective investment undertakings and various derivatives.
In educational terms, the central question remains:
What do I hold, against whom can I assert a right, and which obligation might I be required to perform?
The answer cannot be inferred from the underlying alone. Physical gold, a gold future, an ETC, an option and a CFD may refer to the same price, but they are not the same instrument.
Nine levels and roles not to confuse
| Level | Meaning | Example |
|---|---|---|
| economic nature of the exposure | equity | |
| Underlying | reference on which value depends | basket of stocks |
| Instrument | right or contract held | ETF share |
| Venue | place and rules of trading | regulated exchange |
| Intermediary | provides order reception or execution services | broker or bank |
| Custodian | records or safekeeps assets under the applicable relationship | custodian bank |
| Issuer | creates the security and assumes the issuance obligations | company or state |
| Contractual counterparty | must perform under an OTC contract | CFD provider |
| Clearing and settlement | manages novation, margin or delivery under its own rules | CCP or central securities depository |
An equity ETF is a fund share with equity exposure. An index future is a derivative contract on the value of an index. An “Apple” CFD is a contract with the provider, not a company stock.
The family of securities and fund units
Stocks
A stock represents an ownership interest in a company's capital. Voting rights, dividends and priority depend on the class and the issuer's documents. A common shareholder is a residual owner, not a creditor with guaranteed repayment.
Bonds
A bond represents a claim against the issuer. Coupon, maturity, repayment, seniority and covenants are contractual. Price and yield change with rates, credit and liquidity.
Fund units and ETFs
A unit confers an interest in a collective portfolio under the fund's rules. An ETF trades on an exchange, but its portfolio may be equity, fixed income, multi-asset or constructed with derivatives.
Spot and ownership
In the spot market, the transaction concerns the asset or security with prompt settlement. “Spot” does not always mean taking immediate physical delivery:
- stocks are registered and held in custody under the settlement system;
- a currency purchase exchanges two currencies under settlement conventions;
- a physical commodity requires a defined quality, location, transport and custody;
- some retail products called “spot” are actually rolling positions or contracts with the provider.
Ownership must be verified in the account and instrument documents.
Derivatives
A derivative derives its value from an underlying or reference.
| Type | Right or obligation | Expiry | Common venue |
|---|---|---|---|
| standardized obligation for both parties | yes | exchange | |
| Forward | customized bilateral obligation | yes | OTC |
| buyer's right, seller's obligation | yes | exchange or OTC | |
| Swap | exchange of cash flows under a formula | yes | OTC |
| price difference owed by or to the provider | variable | OTC | |
| derivative with no fixed expiry and funding mechanisms | no fixed expiry | specific platforms |
Derivatives can be used for hedging, risk transfer or speculation. Leverage arises from the relationship between notional exposure and collateral or capital, not from whether the product's name sounds simple.
Exchange and OTC
On an exchange, rules standardize access, orders, matching, contracts and, depending on the market, clearing. In an OTC relationship, parties trade directly or through dealers and platforms; terms, transparency and counterparty risk may differ.
“OTC” does not automatically mean unregulated, and “listed” does not automatically mean safe. Identify:
- authority and jurisdiction;
- authorized parties;
- custody and segregation arrangements;
- clearing and collateral;
- price sources;
- rights in the event of insolvency.
The Exchange and broker entry examines these roles in greater detail.
At-a-glance comparison
| Instrument | What it represents | Cash flows | Leverage/obligations | Specific risks |
|---|---|---|---|---|
| Stock | residual ownership | possible dividends | leverage only if added | company, dilution, market |
| Bond | claim | contractual coupons/repayment | terms of the issue | rates, credit, call |
| ETF | fund share | distribution or reinvestment | depends on mandate | tracking, structure, premium/discount |
| Future | standardized contract | variation and settlement | margin, possible delivery | leverage, expiry, roll, basis |
| Long option | conditional right | nonlinear payoff | premium paid | time, volatility, loss of premium |
| Short option | conditional obligation | premium received | margin/assignment | large or unlimited losses |
| CFD | claim against or liability to the provider | price difference | leverage and financing | counterparty, stop-out, costs |
What to check before sizing
- legal name, ISIN or contract code;
- asset class and underlying;
- ownership interest, claim, unit, right or obligation;
- issuer and counterparty;
- exchange, OTC status and quote source;
- notional amount, multiplier, leverage and margin;
- expiry, exercise, roll and delivery;
- quote currency, P&L and settlement;
- liquidity, spread, commissions and financing;
- prospectus, KID, specifications and account terms.
Common mistake — Treating the underlying's label as if it described the contract. “Bitcoin,” “oil” or “S&P 500” does not tell you whether you hold spot, a fund, a future, an option or a CFD.
Sources
- European Securities and Markets Authority, MiFID II, Article 4 — Definitions and Annex I — Financial instruments.
- U.S. Securities and Exchange Commission, Investor.gov, Investment Products.
- Banca d'Italia, Glossario delle tipologie di strumenti finanziari.
- Banca d'Italia, L'economia per tutti, Cos'è la borsa?.
- U.S. Commodity Futures Trading Commission, Futures Market Basics.
Related pages
- Markets and financial instruments
- Asset classes
- Spot market
- Derivative
- Exchange and broker
- Leverage
- Margin
Bronze Path — This entry belongs to the market module. Index: Bronze Path.