Do futures have time decay? Theta vs. basis convergence
Futures do not have option theta, but time can change futures prices through carry and basis convergence. Learn how theta, convergence, roll yield, and daily P/L differ.
Direct answer
Standard futures do not have option theta because a futures contract has no option premium that must decay to intrinsic value. Time still matters through carry, basis convergence, contract rolls, and daily mark-to-market, but those effects are not option time decay.
Theta belongs to option premium, not the futures contract
Theta estimates how an option's theoretical premium changes as time passes while other model inputs are held constant. At expiration, an option has no remaining extrinsic time value.
A futures contract is different. It is an obligation priced around an underlying reference, financing, storage or dividends, convenience yield, and market supply and demand. It does not contain an option premium that mechanically decays each day.
That is why calling every decline in a futures price “theta decay” is misleading. A futures price can rise, fall, or stay nearly unchanged as time passes.
Time can change the basis before expiration
Time still enters futures pricing through carry. The futures price can trade above or below the relevant spot or cash reference, and the difference is commonly called basis.
As expiration approaches, the futures contract is designed to converge toward its settlement reference under the contract rules. The path is not required to be smooth or one-directional.
Interest rates, dividends, storage costs, convenience yield, delivery conditions, and changing demand can alter the basis while the contract ages.
Read basis convergence versus roll yield for the difference between narrowing basis and replacing one contract month with another.
Work a simple convergence example
Assume the spot reference stays at 100.00. A futures contract trades at 102.00 with 60 days remaining, so the basis is +2.00 points under the convention futures minus spot.
Thirty days later, spot is still 100.00 but the futures price is 101.20. The basis has narrowed to +1.20, and a long futures position has lost 0.80 point.
With a hypothetical $50 multiplier, 0.80 × $50 = $40 of loss per contract before fees. The arithmetic is real, but describing the $40 as theta would be incorrect.
The basis could also widen or change sign before settlement. This example isolates one path and does not predict how a real contract will behave.
Daily mark-to-market is not time decay either
Futures gains and losses are normally marked to market through the settlement process. A daily debit reflects the price move in the contract, not a fixed charge for one day of elapsed time.
If the futures price moves from 101.20 to 100.90, a long position loses 0.30 point that day. The reason can include spot movement, basis movement, rates, inventory, order flow, or other market inputs.
See futures margin versus leverage for how daily settlement affects account cash without implying option-like theta.
Roll yield is separate from theta
A trader who wants continuous futures exposure may close an expiring contract and open a later one. The price difference between those contracts can create a favorable or unfavorable roll effect.
That roll effect depends on the term structure and actual execution prices. It is not a daily decay rate attached to the futures contract.
A contango curve can make repeated long rolls costly, while backwardation can have the opposite effect. The curve can also change before the planned roll date.
Options on futures can have theta
An option on a futures contract is still an option. Its premium can contain extrinsic value and therefore can have theta even though the underlying futures contract itself does not.
Keep the instruments separate in a trading journal. “Long December futures” and “long December futures call” have different payoff mechanics, margin treatment, and time sensitivities.
If the position is an option, use option theta. If it is the futures contract itself, analyze basis, carry, settlement, and roll mechanics instead.
Use a futures time-effect checklist
- Confirm whether the position is a future or an option on a future - Record the contract month and exact settlement reference - Save spot or cash reference and the basis convention - Note rates, dividends, storage, or delivery inputs that matter - Record multiplier, tick value, roll date, and executable quotes - Separate price P/L, basis change, roll effect, and fees [!TRYMARK] TryMark time-effect checkpoint At the next review, record the contract month, spot reference, futures price, basis, multiplier, and planned roll date. Recalculate the same fields later instead of labeling any time-related price change as theta. [!WARNING] Convergence is not a guaranteed trading profit Futures can move sharply before settlement, and basis can widen before it narrows. Delivery rules, liquidity, price limits, and broker margin can matter more than a simple convergence example.
Keep the terminology precise
“Time decay” is useful shorthand for option extrinsic value losing theoretical value as expiration approaches. Futures can have time-related carry and convergence without having that option Greek.
This distinction matters when comparing a future with an option on that future. A similar expiration date does not make their time exposure the same.
Common questions
Do futures lose value every day as expiration approaches?
No. A futures price can rise, fall, or remain stable. Basis may converge toward the settlement reference, but the path depends on spot prices, carry, market conditions, and contract rules.
Is basis convergence the same as theta decay?
No. Theta is an option-premium sensitivity to time. Basis convergence is the futures-versus-reference price relationship moving toward settlement.
Is roll yield another form of time decay?
No. Roll yield comes from replacing one contract month with another at different prices. It depends on the term structure and execution, not a fixed daily theta charge.
Do options on futures have time decay?
Yes. An option on futures can have extrinsic value and theta because it is an option. The underlying futures contract itself does not acquire option theta merely because its expiration is approaching.