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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Buy a put option sized to your Bitcoin exposure. If you hold the put until expiry, the most you can lose on that long-option position is the premium you paid, plus fees and any financing or currency effects. The put pays when its reference price finishes below the strike, helping offset a fall in Bitcoin.
That cap applies only to the option. Your Bitcoin can still lose value, and a put can expire worthless. A put spread can lower the upfront debit, but it gives up protection below the short strike. Contract size, reference price, expiry, settlement currency, liquidity and venue access determine whether the hedge actually matches your holdings.
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What a Bitcoin put hedge actually does
A put gives its buyer the right, but not the obligation, to receive a payoff when the option’s reference price is below a chosen strike at expiry. For a one-unit contract with strike K and expiry price ST, the payoff before costs is:
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max(K − ST, 0)
The long option’s result is that payoff minus the premium and trading costs. If the reference price finishes at or above the strike, the put expires out of the money and the premium is lost.
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For a Bitcoin holder, the put is an offset, not an insurance policy that makes the whole portfolio lossless. If you own one BTC and buy a put covering one BTC, your approximate expiry value before fees is:
Spot BTC value: ST + put payoff: max(K − ST, 0) − premium.
When Bitcoin falls below the strike, the put’s gain offsets part of the spot loss. When Bitcoin remains above the strike, you keep the spot exposure but are down the premium. If the option covers a different quantity, multiply the payoff by that contract’s multiplier; never assume that one option equals one BTC.
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1. Define the exposure you are trying to protect
Record the amount of BTC exposed, whether it is held on a spot venue or elsewhere, and the date through which you want protection. Decide how much loss you can tolerate before the hedge should begin paying. A put struck below the current market begins offsetting losses only below that strike; a closer-to-the-money strike generally provides earlier protection but costs more, all else equal.
- Amount: match the option’s underlying quantity to the BTC amount you want hedged, or deliberately hedge only part of it.
- Protection level: choose the price below which you want the option to respond.
- Time horizon: select an expiry that covers the period of concern. Protection ends at expiry unless you close, roll or replace the position.
- Budget: treat the premium as a known cost that may be lost even if Bitcoin never falls.
2. Identify the contract’s reference asset
Read the contract specification before comparing strikes. Some Bitcoin options reference spot or an index; CME options reference Bitcoin futures. A futures-referenced option can differ from the value of a spot BTC holding because of basis, settlement timing and the futures contract’s own price. CME’s FAQ states: “Neither Cryptocurrency options nor futures will deliver underlying cryptocurrencies, although the value of these contracts are closely tied to the movement of the associated coin.”
A hedge can therefore be directionally correct but imperfect. Check the futures expiry, index or settlement price, and whether the option represents a futures contract rather than deliverable bitcoin.
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3. Check the multiplier and contract count
Find the contract unit in the specification, then calculate coverage:
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Number of contracts × contract multiplier = BTC-equivalent exposure hedged.
CME’s Bitcoin futures option FAQ describes a contract unit tied to one Bitcoin futures contract, and that futures contract represents five bitcoin. That does not make every Bitcoin option a five-BTC contract: listed products differ, and the exact contract you trade controls the calculation. If you hold 1 BTC, a five-BTC contract would be larger than your spot exposure unless you intentionally choose an under- or over-hedge.
4. Compare the all-in debit
The premium is quoted according to the contract’s unit and quote currency. Multiply the quoted premium by the multiplier and number of contracts, then add commissions, exchange fees, bid-ask slippage and any funding or financing costs. A low quoted premium can be misleading if the contract is large or difficult to execute.
5. Verify access, settlement and exercise rules
Confirm that your jurisdiction and account are eligible, and understand how the position is closed or settled. CME says access to its futures options is through a registered futures broker. The financially settled process described in its FAQ does not require a cryptocurrency wallet. Deribit inverse options are European-style: they are exercised at expiry and settled in the base asset, while positions can be closed earlier by trading them. “European” describes exercise timing, not a ban on exiting before expiry.
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Payoff and maximum option loss
Suppose, purely as a worked example, that you own 1 BTC and buy one put covering 1 BTC, with strike K, expiry T and premium P. At expiry:
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- If ST ≥ K, payoff is zero and the option result is approximately −P before fees.
- If ST < K, payoff is K − ST and the option result is K − ST − P before fees.
The option buyer cannot lose more than the premium on that long put when held to expiry, apart from fees and any financing or currency effects. The break-even expiry price is approximately K − P per underlying unit, adjusted for the contract’s quote and multiplier.
Why the whole portfolio can still lose more
If Bitcoin finishes above the strike, the put is worthless and your BTC has not been protected; you are down the premium while retaining the spot position. If the put covers less BTC than you own, only the matched portion receives an offset. If it references futures rather than spot, basis movement can leave a residual loss. If the option is settled in BTC, the number of coins delivered or paid can change while the fiat value of those coins continues to move.
Choosing a strike without pretending there is one universal answer
A lower strike is usually cheaper because it begins paying only after a larger decline. A higher or closer-to-the-money strike generally costs more because it protects an earlier part of the fall. The appropriate level depends on your loss tolerance, time horizon, exposure size and premium budget; no single strike or expiry is suitable for every holder.
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Put spread: reduce premium by giving up deep downside protection
How the two legs work
A standard put spread buys a higher-strike put at K1 and sells a lower-strike put at K2, with K1 > K2 and the same expiry. The sold put brings in premium, reducing the net debit, but it also limits the long put’s benefit below K2.
At expiry, the spread payoff per underlying unit is:
max(K1 − ST, 0) − max(K2 − ST, 0).
- Above K1, both puts expire out of the money and the spread loses its net debit.
- Between K1 and K2, the long put pays as Bitcoin falls.
- At or below K2, the payoff is capped at K1 − K2 per unit.
For a fully paid vertical spread with matching expiry and quantity, the maximum loss is the net premium debit, before fees, and the maximum payoff is the strike width multiplied by the contract quantity. The protection cap is the cost of the lower upfront premium: a collapse far below K2 does not produce additional spread payoff.
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When a spread may fit
A spread can suit a holder who wants protection through a defined price band and wants to spend less than on an outright higher-strike put. It is not a free reduction in risk. The short leg introduces another execution obligation, and the capped payoff may leave you exposed during a larger crash. Explain both legs to yourself before entering; looking only at the reduced debit hides the protection you sold.
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| Feature | Options on Bitcoin futures at CME | Inverse options described by Deribit |
|---|---|---|
| Reference | Bitcoin futures | Inverse option contract, denominated and settled in the base asset |
| Spot bitcoin delivery | Neither the option nor the futures delivers spot cryptocurrency; value is tied to the associated coin | Settlement is in the base asset rather than a cash balance |
| Exercise or settlement detail | Exact style depends on the listed contract; CME Bitcoin Friday options use financial settlement | European-style, exercised at expiry; positions may be closed earlier by trading |
| Access | Through a registered futures broker | Account, jurisdiction and product eligibility apply |
| Wallet requirement in the described process | CME’s financially settled futures process does not require a cryptocurrency wallet | The premium is paid from the cash balance, and settlement changes the base-asset balance |
| Contract size example | One Bitcoin futures contract represents five bitcoin; confirm the option’s exact multiplier | Confirm the contract specification before converting a position into BTC-equivalent coverage |
These are product distinctions, not a ranking of venues. Terms, eligibility and available expiries can vary by jurisdiction and contract listing. Read the current specification for the exact option you are considering.
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Premium can be lost in full
The most common outcome for a purchased put is that Bitcoin remains above the strike through expiry. The option then expires worthless, and the premium is the cost of the protection. A hedge that is inexpensive in percentage terms can still be a recurring drag if you repeatedly buy options that do not pay out.
Basis and settlement mismatch
A futures-referenced option may not track your spot holding tick for tick. Differences can widen around futures expiry or settlement. A BTC-settled payoff also changes the number of coins in your account, while the fiat value of those coins remains exposed to Bitcoin’s price.
Expiry mismatch and rolling
Protection stops at expiry. Extending it requires selling, exercising or allowing the old option to settle and buying a new one, each of which can incur another premium, spread and transaction fee. A hedge that ends before the date of your liability is not protection for the full liability period.
Volatility and liquidity
Option premiums and bid-ask spreads change with volatility, time to expiry and demand for protection. Deribit’s risk disclosure identifies derivative complexity, price risk and liquidity risk. A displayed price may not be available for your full order size; use limit orders where appropriate and check the depth of the market.
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Multi-leg execution risk
A put spread has two legs. Entering or closing one leg without the other can leave you with an unintended long or short option. Check the order ticket’s net debit or credit, quantity, strikes and expiry, and confirm the resulting position after execution.
Venue, custody and counterparty exposure
You are taking risk not only on Bitcoin and the option payoff but also on the broker or exchange, margin or cash arrangements, settlement process and custody of collateral. A financially settled contract avoids transferring spot BTC but does not remove counterparty, operational or market risk. Availability depends on your jurisdiction and account eligibility.
Decision framework: outright put or put spread?
| Question | Outright long put | Put spread |
|---|---|---|
| Upfront cost | Full premium for the selected put | Net debit is reduced by premium received for the short lower-strike put |
| Downside protection | Continues below the strike as the reference price falls | Capped at the difference between the two strikes |
| Maximum option loss | Premium paid, plus fees and applicable financing or currency effects | Net debit for a defined vertical spread, plus fees and applicable financing or currency effects |
| Position complexity | One option leg | Two option legs with matching expiry and quantity |
| Best understood as | Paying more for uncapped downside payoff below the strike | Trading away deep-tail protection to lower the debit |
Use the outright put when retaining protection in a severe decline is more important than minimizing the premium. Consider the spread only when you can state the exact lower strike at which protection ends and accept the resulting residual exposure.
Pre-trade checklist
- Write down the BTC amount and the dates you need to hedge.
- Confirm whether the option references spot, an index or Bitcoin futures.
- Read the contract multiplier and calculate the BTC-equivalent coverage.
- Choose a strike based on the loss level you want protected, not simply the cheapest quote.
- Check expiry, exercise style and whether settlement is in cash, a futures contract or BTC.
- Calculate the premium for the full multiplier and add commissions, spread and other costs.
- Check broker or exchange eligibility, jurisdiction, collateral and custody arrangements.
- For a spread, verify both strikes, the same expiry, quantity and maximum payoff before submitting.
- Record the expiry and a plan for closing or rolling; protection does not continue automatically.
Worked outcome examples
Bitcoin finishes above the put strike
The long put expires worthless. The BTC holding keeps its market value, but the premium and fees reduce the combined result. This is the price of protection that was not needed during that period.
Bitcoin finishes below the put strike but above a spread’s short strike
The outright put pays the difference between its strike and the expiry reference price. The spread also pays through this range, less its net debit, so the lower premium has not yet limited the payoff.
Bitcoin finishes below the spread’s short strike
The outright put continues gaining as the reference price falls. The spread’s payoff stops increasing at the distance between its strikes, leaving the holder with the original BTC downside beyond that level.
What “only risk the premium” means
It means the long put itself has bounded loss when bought without leverage and held to expiry: the premium is the most that option position can lose before fees and related costs. It does not mean your Bitcoin cannot fall, that the hedge covers every coin you own, or that a futures-referenced or BTC-settled contract will match a spot position perfectly. Treat the premium cap as a property of the option leg, then separately measure the residual risk in the combined portfolio.
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