A put option gives you the right, but not the obligation, to sell BTC at a fixed strike price before a set expiry. You pay a premium upfront, and that is your maximum possible loss. Buy a put to profit from a BTC decline or use it as insurance to set a floor on a position you already hold.
A long put option gives you the right to sell BTC at a fixed strike price before expiry. It gains value when BTC falls
Buying a put is bearish when used speculatively, defensive when used as insurance against a BTC position you already hold
The protective put strategy caps your downside while keeping full exposure to BTC's upside, the closest thing crypto has to home insurance
Maximum loss is always the premium paid, whether you speculate or hedge. Nothing more, regardless of how high BTC rallies
Speculative breakeven = strike price minus premium paid. Protective put breakeven = spot entry price plus premium paid
What is a put option in crypto?
A crypto put option is a contract that gives you the right, but not the obligation, to sell BTC at a specific price, called the strike price, before or at a specific date, called the expiry. In exchange for that right, you pay an upfront fee called the premium.
Is buying a put option bullish or bearish? It depends on how you use it. A put option gains value when BTC's price falls. Used speculatively, buying a put is a bearish bet: you profit when BTC drops below your strike by more than the premium paid. Used as a hedge against BTC you already own, a put is neither bullish nor bearish. It is protection. You are not betting on a decline. You are insuring against one.
Can you buy put options on crypto? Yes. BTC and ETH put options are available on Paradex with a range of strikes and expiry dates. You can buy a put to express a view, hedge a portfolio, or both, all from a single self-custodial account.
What is the maximum loss when buying a put option? Always the premium paid. Not a dollar more, regardless of what BTC does. If you buy a BTC put for $700 and BTC rallies 40% against your position, you lose $700. If BTC rallies 80%, you still lose $700. The premium is the absolute ceiling on your loss, fixed at the moment you confirm the trade. This is fundamentally different from short-selling BTC, where a rally against your position can generate losses that far exceed your initial outlay.
Buying a put option: a real BTC example (P&L and breakeven)
Numbers make the mechanics concrete. Here is what buying a put option looks like in practice with BTC at $90,000.
Long put P&L at expiry. Strike $85,000, premium $2,000. Loss is capped above strike, profit rises as BTC falls below breakeven.
Worked example
Setup: BTC is trading at $90,000. You buy a put option with a strike of $85,000 expiring in two weeks. The premium is $2,000.
Breakeven: $85,000 strike minus $2,000 premium = $83,000. BTC must close below this level at expiry for the trade to be profitable.
Maximum loss: $2,000. If BTC closes anywhere at or above $85,000, the put expires worthless and the full premium is lost.
Scenario A (winning trade): BTC falls to $80,000. Your put is now worth approximately $5,000 ($85,000 minus $80,000). Subtract the $2,000 premium: profit is $3,000.
Scenario B (losing trade): BTC stays at $90,000 or rises. The put is out of the money at expiry. It expires worthless. You lose the full $2,000 premium.
Scenario C (correct direction, insufficient move): BTC falls to $84,000. The put is in the money by $1,000, but that does not cover the $2,000 premium. Net loss: $1,000. You were right about direction, but the move was not large enough to clear breakeven.
The asymmetry between a capped $2,000 loss and a potentially much larger payoff on a sharp BTC decline is the core appeal of buying puts over short-selling. The trade-off is the same one that applies to calls: you need to be right about more than just direction. You need to be right about magnitude and timing as well.
Long put vs short selling vs short call: which one suits you?
All three are ways to express a bearish view on BTC, but the risk profiles diverge sharply. The differences matter most when the trade goes against you.
Feature
Long put
Short selling BTC
Short call
Direction expressed
Bearish or defensive
Bearish
Bearish to neutral
Maximum loss
Premium paid (capped)
Theoretically unlimited
Theoretically unlimited
Margin required
Only the premium paid upfront
Significant, varies by leverage
Significant collateral required
Liquidation risk
None
Yes, on adverse move
Yes, on adverse move
Best when
You want defined downside risk on a directional view or a hedge
You want one-to-one exposure to a decline and can tolerate liquidation risk
You want to earn premium income with a bearish-to-neutral view
For a beginner approaching a bearish view on BTC for the first time, a long put is structurally the safest of the three. The maximum loss is known and capped before you click confirm.
See live BTC put premiums right now. Open the Paradex options chain, browse strikes and expiries, and check live IV and delta before placing a trade. Connect your wallet to get started.
This is the action section. Each of the ten steps below is something you do directly in the app, in order, whether you are speculating on a decline or hedging a BTC position you already hold.
2Select your expiry. For a protective put, choose an expiry that covers the period of uncertainty you are concerned about. For a speculative put, two to four weeks gives BTC adequate time to make the move while keeping theta manageable.
3Find your strike price. For a speculative put, the ATM strike (closest to BTC's current price) gives the most balanced setup. For a protective put, consider a strike 5 to 15 percent below the current BTC price for a lower-cost hedge that absorbs moderate declines. For a refresher on how the chain is laid out, see how to read an options chain.
4Check the IV column. High IV means expensive puts. If the market is already fearful and premiums are elevated, the protection costs more and the downside move may already be partially priced in. (See why IV matters more than you think.)
5Note the ask price of the put. This is your premium and your maximum possible loss on this trade. For a protective put, compare this cost to the downside exposure on your spot BTC position to assess whether the protection is priced fairly.
6Calculate your breakeven. For a speculative put: strike price minus premium paid. For a protective put: your BTC entry price plus the premium paid. Write both numbers down before placing the order.
7Check the delta. An ATM put has a delta of approximately -0.5. It gains $0.50 for every $1 BTC falls. (More on how delta and the other Greeks work.)
8Use the payoff chart. On Paradex, the payoff chart shows profit and loss at every BTC price at expiry. For a protective put used alongside a spot position, this chart shows the combined outcome of both positions at every price point, making the insurance value of the put immediately visible.
9Place the order. Select the put at your chosen strike and expiry. Enter your quantity. Review the order details: direction buy, type put, strike, expiry, premium. Confirm the order.
10Set your exit plan immediately. For a speculative put, decide in advance the profit level at which you will close the position. For a protective put, decide whether you will hold to expiry or close the put early if BTC rallies and the hedge is no longer needed. Write the plan down before closing the app.
The protective put strategy: using put options as portfolio insurance
The protective put strategy is the practice of buying a put option against an existing BTC spot holding to limit downside while keeping full exposure to upside. It is the most important concept in this article and the one that separates puts from every other options strategy in this series. Every other trade we have covered requires you to take a view. The protective put works regardless of your directional view. It simply asks: what is the maximum loss I am willing to accept on my BTC position over the next few weeks?
Think of it exactly like home insurance. You do not buy home insurance because you expect your house to burn down. You buy it because the cost of being unprotected if it does is unacceptable. A protective put works the same way. You hold BTC in your wallet. You are long-term bullish on BTC but concerned about a near-term decline. Perhaps a macro event is approaching, the rally looks overextended, or you simply have genuine uncertainty about the next few weeks. Instead of selling your BTC, you buy a put option.
How it works: a worked example
You hold 1 BTC at $90,000. You buy a put with a strike of $85,000 expiring in one month, paying a premium of $2,000. The combined position has a specific payoff profile at every possible BTC price at expiry.
Protective put combined P&L. Holding 1 BTC at $90K entry plus a $85K strike put for $2K premium. The put floors the loss at $7K no matter how far BTC falls.
Scenario 1: BTC falls to $75,000. Your spot BTC has lost $15,000 in value. But your put option is now worth $10,000 ($85,000 strike minus $75,000). Your net loss is $15,000 minus $10,000 plus the $2,000 premium: $7,000 total. Without the put, your loss would have been $15,000. The put cut your loss by more than half.
Scenario 2: BTC rises to $110,000. Your put expires worthless. You lose the $2,000 premium. But your spot BTC has gained $20,000. Net gain: $18,000. The put cost you $2,000 in a winning scenario, and that is exactly how insurance is supposed to work. You do not regret buying car insurance because you did not have an accident this year. You bought it because driving without it was the unacceptable scenario. A protective put that expires worthless is not a failed trade. It is a successful hedge on a position that did not need protecting.
Choosing the strike for a protective put
The strike you choose determines the level of protection and the cost of the premium. Think of it like choosing a deductible on an insurance policy.
An ATM put (strike near the current BTC price) is like a low-deductible policy. It costs more in premium but activates the moment BTC starts falling. A $90,000 strike put when BTC is at $90,000 pays out from the first dollar of decline below that level.
An OTM put (strike below the current BTC price) is like a high-deductible policy. It costs less but you absorb the first portion of any decline yourself. An $85,000 put when BTC is at $90,000 means you carry the first $5,000 of losses before the protection kicks in.
For most long-term BTC holders using puts as insurance, an OTM strike 5 to 15 percent below the current price strikes the right balance between cost and protection.
How to buy a put option on Paradex
Paradex is a decentralized exchange for crypto options, perpetual futures, and spot, all from one self-custodial account. It is built by the team behind Paradigm, the largest institutional options liquidity network in crypto, and the order book on Paradex is fed by that same institutional flow. For a protective put trade to work as portfolio insurance, execution needs to be reliable. The institutional liquidity behind every BTC put option means your order fills at a competitive price rather than sitting unfilled in a thin book.
A few things that differentiate Paradex for a trader buying their first put:
Zero maker and taker fees for retail accounts across all 90+ markets. Lower fees directly lower the breakeven on every put you buy and reduce the cost of running a protective put rolling strategy. See current fee details in the trading fees documentation.
Self-custody throughout. You connect a wallet. Your funds remain in your control at all times.
Unified margin. Put options, call options, perpetual futures, and spot all live in one account, so a protective put sits naturally alongside the BTC position it is hedging.
Position privacy. Trades are encrypted via ZK technology, so your strike, position size, and P&L are not visible to other traders on the order book.
Built on Paradex Chain (StarkNet L2) for on-chain settlement at CEX-grade execution speed.
Incubated by Paradigm, the institutional crypto liquidity network. See more on the team and thesis at about Paradex.
For traders in India, Singapore, the UK, or anywhere else with wallet access, the experience is identical. Connect a wallet, open the BTC options chain, choose your strike and expiry, and place the trade. No platform switching required when you later want to layer in perpetual futures or rotate excess capital into Paradex vaults.
Beyond manual hedging: if you want exposure to systematic options strategies (covered calls, cash-secured puts, volatility selling) without managing the trades yourself, read our piece on Vault Traded Funds (VTFs), the on-chain primitive for tokenized fund exposure to options-based strategies.
Every advantage of buying a put comes with a corresponding cost. Understanding both sides before entering is what separates a deliberate trade from an expensive lesson.
Theta decay works against you every day. A put option loses time value continuously. If you buy a put as portfolio insurance and BTC stays flat for two weeks, the put has lost value even though nothing bad happened. This is exactly how insurance premiums work. You pay the cost whether or not you need to make a claim. The premium is spent in exchange for the certainty of protection, not in exchange for a guaranteed payout.
IV timing affects cost dramatically. Buying a put when implied volatility is already elevated means paying an expensive premium for a move that may already be partially priced in. The same put that costs $700 in a calm market may cost $1,400 when the market is already fearful. Buying protection after a crash has already started is the options equivalent of buying insurance after the accident.
Going too far out of the money creates false economy. A deep OTM put is cheap but requires a very large BTC decline to be profitable. A put at $70,000 when BTC is at $90,000 costs very little but only pays out meaningfully after a 22 percent crash. For genuine portfolio protection, this is often inadequate.
The put expires. Unlike a stop-loss order that remains in place indefinitely, a put option has an expiry date. If the decline you feared happens after expiry, the put provides no protection. Protective put positions need to be actively renewed (rolled) if the concern persists beyond the initial expiry.
None of these downsides make puts a bad strategy. They make puts a strategy that rewards preparation. Knowing the theta, checking IV before buying, choosing the right strike, and rolling the position before expiry if necessary are all manageable with a clear process.
What is the one thing to remember?
A put option does not require you to be bearish on BTC. The protective put strategy is for anyone who holds BTC and wants to sleep at night during uncertain periods without giving up their position.
Long-term BTC holders who refuse to use puts are making a choice: to absorb the full weight of every drawdown in exchange for paying no premium. That is a valid choice. But it is a choice, not a default. The protective put gives you the alternative: pay a known, limited fee and know in advance exactly how much you can lose over the next weeks, regardless of what BTC does.
Used speculatively, puts offer the same asymmetric advantage as calls: defined risk, large potential gain on a sharp decline, and no obligation to follow through if the trade moves against you. Used as insurance, they are one of the most rational risk management tools available to any BTC holder. Calculate your breakeven. Check IV before you buy. Choose a strike that matches your protection goal. And remember: the premium you pay for a put that expires worthless is not a loss. It is the cost of certainty.
Frequently asked questions
When you buy a put option, you pay an upfront premium for the right to sell BTC at the strike price before expiry. If BTC closes below the strike at expiry, the option is in the money and settles for the difference between the strike and BTC. If BTC closes at or above the strike, the option expires worthless and the premium paid is your full loss. Most traders close the position by selling the option back on the chain before expiry rather than holding to settlement.
Three main downsides. Theta decay erodes the put's value every day, including when BTC stays flat. Implied volatility timing matters: buying when IV is already elevated means paying an expensive premium for a move that may already be priced in. And the put has an expiry date, unlike a stop-loss order, so you must renew the position if the concern persists. On Paradex, zero trading fees eliminate one of the costs working against you.
No. Buying a put option is bearish or defensive. You profit when the underlying asset falls below your strike price before expiry. A long put is used either to speculate on a price decline or to hedge an existing position. The maximum loss is the premium paid; the maximum profit is the strike price minus the premium (since the underlying cannot fall below zero).
Yes. BTC and ETH put options are available on Paradex with a range of strikes and expiry dates. You can buy a put to express a bearish view, hedge a portfolio you already hold, or both, all from a single self-custodial account on Paradex Chain (StarkNet L2). For an introduction to crypto options as a whole, see what crypto options actually are.
Yes. Paradex is accessible globally including from India through a self-custodial wallet connection, giving traders in India a direct route for crypto options trading without going through a centralised platform. The protocol offers zero trading fees for retail accounts and lets you trade BTC and ETH put options, call options, perpetual futures, and spot from a single account on Paradex Chain (StarkNet L2). The same experience applies for traders in Singapore, the UK, and other global markets.
A crypto put option gives you the right, but not the obligation, to sell a cryptocurrency at a fixed strike price before a set expiry date, in exchange for an upfront premium. If the asset falls below the strike price minus the premium, the trade is profitable. If it does not, the maximum loss is the premium paid. For a beginner introduction, see what crypto options actually are.
Buy a put option in two situations. First, when you have a bearish view on BTC and want to express it with capped downside risk. Second, when you hold a BTC position long-term but want to set a floor on your losses without selling the asset. For example, you hold 1 BTC and remain long-term bullish but a near-term macro event concerns you. Buying a BTC put with a strike 5 to 15 percent below the current price acts as portfolio insurance while preserving full upside exposure.
The breakeven for a speculative put is strike price minus premium paid. For example, an $85,000 strike put with a $2,000 premium has a breakeven of $83,000: BTC must fall below $83,000 before expiry for the trade to be profitable. For a protective put used alongside a BTC spot position, the combined breakeven is the spot entry price plus the premium paid, because the premium effectively raises the cost basis of the underlying.
A put option gives the holder the right to sell the underlying asset at the strike price, profiting when the price falls. A call option gives the holder the right to buy the underlying asset at the strike price, profiting when the price rises. Puts express bearish or defensive views; calls express bullish views. Both cap the maximum loss at the premium paid. See our companion article on buying a call option for the bullish side of the same framework.
The maximum loss when buying a put option is strictly limited to the premium you paid. If BTC stays above your strike price at expiry, the option expires worthless and you lose the premium, nothing more. This makes buying puts fundamentally safer than short selling BTC, where losses are theoretically unlimited as price can rise indefinitely against the position.
Ready to place your first BTC put option? Open the Paradex options chain, choose a strike that matches your view (speculative) or your protection goal (defensive), calculate your breakeven, and place the trade with a defined maximum loss from the start.
Zero fees, self-custody, and institutional liquidity from the team behind Paradigm. Browse live volume and open interest on the stats page or dive deeper in the documentation.
Trading perpetual futures, options, and other crypto derivatives involves substantial risk. Leveraged positions can result in losses exceeding your initial margin. This content is for informational purposes only and does not constitute financial advice. Past performance is not indicative of future results. Do your own research before trading.
Paradex is a decentralised protocol. Access may be restricted in certain jurisdictions. Verify your local regulations before using the platform.
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