Futures Contracts Explained

A futures contract is a standardized agreement to buy or sell an asset at a set price on a set date (or cash-settled equivalent). Contracts trade on regulated exchanges with clearinghouses standing between buyers and sellers.

Futures are not “stock options with a different name.” Both sides face obligation, daily mark-to-market, and contract specs that define every dollar of P/L.

How a futures trade works

1. You open a long or short position in a listed month (for example December E-mini S&P).
2. The exchange specifies contract size, tick size, and tick value.
3. Each session, price moves change your account. Profits can be withdrawn; losses must be covered.
4. Before expiry you offset (close), roll to the next month, or deliver/settle per product rules.

Contract specs matter

Spec	Why you care
Multiplier	Converts index points to dollars
Tick size	Minimum price increment
Expiration calendar	Liquidity shifts to front month
Settlement	Physical vs cash

Example idea (illustrative): An index future with a $50-per-point multiplier moves 10 points → $500 per contract P/L before fees.

Always read the exchange fact sheet for the product you study.

Mark-to-market

Futures accounts settle daily. Gains credit; losses debit. If equity falls below maintenance margin, you receive a margin call and must add funds or positions are liquidated.

This is faster than waiting for option expiry to realize P/L. See Futures margin and leverage.

Futures vs stock options

	Futures	Stock options
Long side	Obligated path like short side symmetry	Right, not obligation (long)
Time decay	No theta like options	Theta on long premium
Style	N/A	American on US equities
Retail access	Futures account + disclosures	Options approval levels

Options on futures (e.g. on crude or Treasury futures) are a hybrid: option on an underlying future. They have their own multipliers and expiries.

Who trades futures?

• Hedgers: airlines (fuel), farmers (grain), funds (index risk)
• Speculators: short-term directional traders (high risk)
• Arbitrageurs: basis trades between cash and futures (advanced)

Retail participation is common on liquid equity index and Treasury contracts, but leverage makes mistakes expensive.

Rolling

Near expiration, volume migrates to the next contract month. Rolling means closing the near month and opening the next, paying the spread between months (roll cost). Failure to roll can force delivery or cash settlement you did not plan for.

Risk reminders

• Small % move × large notional = large account swing
• Gaps overnight can skip stop levels
• Leverage works both directions

Pair with Risk management before live futures.

Worked example: offset before expiry

You are long one December index future. Two weeks before expiry, volume shifts to March. You sell December and buy March (roll). The price difference between months is the roll cost or credit.

Failure to roll can leave you in a thin contract or unwanted settlement process.

Worked example: long vs short symmetry

Index future at 5000. You are short one contract.

• Index rises to 5050 (+50 points): you lose 50 × multiplier dollars.
• Index falls to 4950: you gain the same magnitude.

There is no "premium paid" cap like a long option. Margin must cover adverse moves.

Basis (cash vs futures)

Cash index at 5000, future at 5010. The +10 basis reflects financing and dividends until expiry. Basis trades are institutional; retail should know the label exists.

ThetaViz scope

ThetaViz emphasizes equity options payoffs. Use it for stock and ETF options while you study futures on exchange education sites and a sim account.

Contango and backwardation (commodities)

Oil and grain futures curves can slope up (contango) or down (backwardation). Rolling in contango can cost carry over time. Equity index futures have their own curve shape around dividends and rates.

Micro contracts

Micro E-mini products shrink notional per tick. They suit education and smaller accounts better than full-size contracts if your broker offers them.

First notice and last trade dates

Physical delivery products have first notice dates. Retail speculators usually close before those windows. Calendar is on the exchange website.

Crypto and equity index futures (awareness)

New products appear regularly. Margin and hours differ. Read the contract spec sheet every time.

Related guides

• Futures margin and leverage
• Stocks vs options vs futures
• Margin account basics

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ThetaViz provides educational tools only. This guide is not investment, tax, or legal advice. Prices, margin requirements, and tax rules change. Confirm details with your broker and qualified professionals before trading.