Bitcoin Structured Products: Vaults, Options, and Yield

Bitcoin Structured Products Overview

Bitcoin structured products package derivatives strategies into predefined vehicles that offer yield, downside protection, or defined outcomes. They range from DeFi options vaults that sell weekly covered calls to institutional principal-protected notes issued by trading desks. The common thread: each product trades some combination of upside, liquidity, or complexity for a more predictable return profile.

The market has matured significantly since the first DeFi options vaults launched in 2021. Ribbon Finance pioneered on-chain covered call vaults, reaching over $300 million in TVL before merging into the Aevo derivatives exchange in 2023. Friktion brought similar strategies to Solana before shutting down in early 2023. Meanwhile, institutional desks like Galaxy Digital and GSR have built OTC structured product businesses for qualified investors, and a wave of covered call Bitcoin ETFs has brought these strategies to traditional brokerage accounts.

How Covered Call Vaults Generate Yield

A covered call vault holds the underlying asset (BTC or wrapped BTC) and systematically sells out-of-the-money (OTM) call options against that position, typically on a weekly cycle. The premium collected from selling those options becomes the vault's yield. If BTC stays below the strike price at expiry, the option expires worthless and the vault keeps both the BTC and the premium. If BTC rises above the strike, the vault delivers the upside above that level to the option buyer.

The core tradeoff is straightforward: income in exchange for capped gains. In sideways or mildly bullish markets, covered call vaults outperform simply holding BTC because the premiums add up while the options expire worthless. In strongly bullish markets, the strategy underperforms because the vault sells away the upside above the strike price. During the 2022 bear market, Ribbon's covered call vaults still generated positive APY while spot BTC fell over 60%.

Most DeFi vaults use an automated strike selection algorithm that targets options 5-15% out of the money with one-week expiry. The protocol sells these options to institutional market makers through on-chain or off-chain auctions. Vault tokens auto-compound: premiums are reinvested into the next epoch's position automatically.

Strategy Types Compared

Bitcoin structured products employ several distinct strategies, each with different risk and return profiles. Understanding these strategies is essential before committing capital to any vault or structured note.

DeFi Options Vaults

DeFi options vaults (DOVs) automate structured product strategies on-chain, removing the need for a broker, minimum investment, or accredited investor status. Users deposit assets into a smart contract, and the vault executes the strategy on a recurring basis.

Aevo (formerly Ribbon Finance)

Ribbon Finance launched the first DeFi options vaults in 2021 with its Theta Vault product. In July 2023, RBN tokenholders voted to merge into Aevo, a derivatives exchange built on a custom OP Stack L2. RBN tokens converted to AEVO at a 1:1 ratio. Ribbon's original vaults sold weekly OTM call options on BTC, ETH, and other assets. The platform charged a 2% management fee plus a 10% performance fee. At its peak, Ribbon exceeded $300 million in TVL. Aevo now operates as a full derivatives exchange with options, perpetual futures, and structured yield strategies available from a single margin account.

Derive (formerly Lyra Finance)

Derive has grown to over $100 million in TVL and claims roughly 70% of decentralized options market share. Its vault tokens are ERC-20s that represent yield-bearing assets (such as weETH, rswETH, or sUSDe) with structured options overlays: covered call spreads and long put spreads. The protocol operates on Ethereum and Arbitrum.

StakeDAO and Thetanuts

StakeDAO differentiates by stacking passive yield on top of options strategies: assets in options vaults are simultaneously deposited into lending or staking protocols for additional returns. The platform charges zero platform fees, only a 0.50% withdrawal fee. Thetanuts Finance sells OTM European cash-settled options to accredited market makers through its Basic Vaults and is preparing a v4 upgrade with a request-for-quote system. Both protocols support BTC and ETH strategies.

Historical: Friktion (Solana)

Friktion was Solana's largest options vault protocol, peaking at over $70 million in TVL. It offered four "Volts": covered calls, cash-secured puts, a crab (delta-neutral) strategy, and a basis yield strategy. The protocol announced its shutdown in January 2023, citing costs outpacing revenue. Its closure highlighted the difficulty of sustaining DeFi structured products during prolonged bear markets when option premiums compress and user deposits decline.

Institutional Structured Products

For institutional investors and high-net-worth individuals, OTC desks offer customized Bitcoin structured products that are not available through DeFi protocols or retail platforms.

Galaxy Digital provides OTC spot and derivatives trading, lending, and structured products to over 1,500 institutional counterparties, including asset managers, hedge funds, family offices, and corporations. Galaxy offers liquidity in options and forwards on a principal basis across both OTC and exchange-listed products. In June 2026, Galaxy expanded its derivatives desk to cover prediction market instruments.

GSR Markets offers variance swaps (exposure to Bitcoin volatility), accumulators (counterparties sell BTC daily at above-market levels), and crypto binaries (binary options for speculation and hedging). GSR's team includes alumni from Goldman Sachs, Two Sigma, and Tower Research Capital. Both desks typically require institutional minimums and operate under bilateral agreements with counterparty risk managed through credit terms rather than on-chain collateral.

For a broader view of Bitcoin yield opportunities across DeFi and CeFi, see our Bitcoin DeFi yield comparison.

Covered Call Bitcoin ETFs

A new category of Bitcoin ETFs has emerged that applies covered call strategies to spot Bitcoin ETF shares, making options-based yield accessible through standard brokerage accounts.

The NEOS Bitcoin High Income ETF (BTCI) launched in October 2024 and has grown to approximately $1.2 billion in AUM, writing covered calls against Bitcoin exposure to target 15-20% annualized income. BlackRock launched the iShares Bitcoin Premium Income ETF (BITA) in June 2026, holding IBIT shares and writing covered calls on 25-35% of the portfolio to target 15-25% annualized yield. Calamos offers a tiered suite of Bitcoin structured alt protection ETFs: CBOL (100% principal protection), CBXL (90%), and CBTL (80%), which launched in October 2025. These ETFs combine zero-coupon bond structures with Bitcoin call options to guarantee varying levels of downside protection.

Over $500 million in Bitcoin structured ETF products have been issued since the second half of 2025. These products give traditional investors access to Bitcoin options strategies without managing wallets, self-custody, or DeFi protocol risk.

Principal-Protected Products

Principal-protected notes (PPNs) guarantee the return of the investor's initial deposit at maturity while offering variable upside tied to Bitcoin's performance. The structure works by splitting the deposit into two components: the majority goes into a fixed-income instrument (lending yield, T-bills, or a zero-coupon bond) that grows back to the full principal by maturity, while the remainder purchases OTM call options on BTC for upside exposure.

Cega Finance pioneered on-chain PPNs with its Bull Shark BTC vaults, offering 100% principal protection with a guaranteed minimum yield of 12.7% APY and potential bonus yield up to 30.65% APY if BTC reaches specific price thresholds. The lending yield forms the baseline return, and a portion is allocated to OTM call options for upside participation. Matrixport offers similar structures through its Shark Fin product, providing principal protection with enhanced returns when BTC stays within a defined price range. In the ETF space, Calamos' CBOL provides 100% downside protection by combining Treasury bonds with Bitcoin call options.

The key risk with PPNs shifts from market risk to credit risk: the guarantee is only as strong as the issuer (or, in DeFi, the smart contract and the lending protocol generating the fixed yield). For more on how lending protocols underpin these structures, see our research on the BTCFi landscape in 2026.

DeFi Vaults vs. Institutional Structured Notes

DeFi vaults and institutional structured notes solve similar problems (packaging derivatives strategies into accessible vehicles) but differ in almost every operational dimension.

For investors evaluating custodial risk across platforms, the key question is where the option settlement occurs. DeFi vaults settle on-chain through protocols like Opyn or through direct integration with market makers. Institutional notes settle bilaterally, meaning the investor bears the credit risk of the issuing desk.

Bitcoin L2s and Native BTC Products

Despite the growth of BTCFi, no dedicated options vault protocols currently operate natively on Bitcoin L2s. The BTCFi ecosystem on chains like Stacks and BOB remains focused on lending, borrowing, and staking. Zest Protocol on Stacks has attracted over 800 BTC in deposits for its Bitcoin Collateral Vaults (lending), and BOB launched Native Bitcoin Vaults Stack in December 2025 for BTC-backed DeFi collateral.

This gap means most Bitcoin structured products still rely on wrapped BTC (WBTC, tBTC) on Ethereum-based chains or on centralized platforms. As Bitcoin L2 infrastructure matures, native BTC options vaults could offer a significant improvement: users would maintain exposure to Bitcoin without wrapping risk or EVM bridge dependencies. Protocols like Spark are building the base layer infrastructure that could eventually support such products natively on Bitcoin.

For more on how Bitcoin scaling solutions compare, see our Bitcoin layer 2 comparison and the staking calculator for estimating returns from BTC staking protocols.

How to Choose a Bitcoin Structured Product

Selecting the right structured product depends on your market outlook, risk tolerance, and access constraints.

If you expect BTC to trade sideways or grind up slowly: covered call vaults (Aevo, Derive, BTCI ETF) capture premium while BTC consolidates. Historical data shows covered call strategies outperform spot BTC during range-bound markets.

If you want principal protection: Calamos CBOL ETF (100% protection) or Matrixport Shark Fin products guarantee your deposit while offering variable Bitcoin upside. The tradeoff is lower potential returns compared to pure spot exposure.

If you want permissionless, self-custodial access: DeFi vaults like Aevo, Derive, or StakeDAO let you participate with any wallet and no minimum. StakeDAO's zero-fee model and yield stacking make it particularly cost-efficient.

If you are an institution or fund: Galaxy Digital and GSR offer fully customized structured products with negotiated terms, higher notional sizes, and credit-based settlement. These desks can construct bespoke payoff profiles that no standardized vault or ETF can replicate.

For comparison with other yield-bearing strategies, see our crypto earn program comparison.

Frequently Asked Questions

What is a Bitcoin covered call vault?

A Bitcoin covered call vault is a DeFi smart contract that holds BTC (or wrapped BTC) and automatically sells out-of-the-money call options against that position on a weekly cycle. The option premiums become yield for depositors. If BTC stays below the strike price, the vault keeps the premium and the BTC. If BTC rises above the strike, the vault's upside is capped. Typical yields range from 10-22% annualized depending on market volatility.

Are Bitcoin structured products safe?

Safety depends on the product type and platform. DeFi vaults carry smart contract risk and depend on the solvency of the protocols they interact with. Friktion and several other vault protocols have shut down, though depositors could withdraw their funds. Institutional structured notes carry the credit risk of the issuing desk. ETF-based products like BTCI and CBOL operate within regulated fund structures but still expose investors to Bitcoin's price volatility (unless principal protection is included).

What is the difference between a DeFi options vault and a covered call ETF?

DeFi options vaults are permissionless smart contracts where users deposit crypto directly from a wallet. They offer higher potential yields (10-30% APY) but carry smart contract risk and require managing private keys. Covered call ETFs (like BTCI or BITA) execute similar strategies but trade on traditional stock exchanges, are held in brokerage accounts, and operate under SEC regulation. ETFs have lower yields due to management fees and regulatory constraints but eliminate crypto custody complexity.

How do principal-protected Bitcoin products work?

Principal-protected products split your deposit into two parts. The larger portion is invested in fixed-income instruments (lending protocols, T-bills, or bonds) that grow back to 100% of the original deposit by maturity. The smaller portion buys out-of-the-money Bitcoin call options. At maturity, you receive at minimum your full principal, plus any gains from the call options if BTC rose above the strike price. The protection is only as strong as the issuer or smart contract backing it.

What happened to Ribbon Finance?

Ribbon Finance merged into Aevo in July 2023 following a governance vote by RBN tokenholders. RBN tokens converted to AEVO at a 1:1 ratio. Ribbon's original Theta Vault product pioneered DeFi options vaults in 2021 and peaked at over $300 million in TVL. Aevo now operates as a full derivatives exchange on a custom OP Stack L2, offering options, perpetual futures, and structured yield strategies.

Can I get Bitcoin yield without selling upside?

Yes. Principal-protected notes let you maintain full upside exposure while guaranteeing your principal through fixed-income backing. Bitcoin staking through protocols like Babylon offers yield from securing proof-of-stake networks without options exposure. Lending platforms offer interest on BTC deposits without capping upside. However, each alternative carries its own risks: staking has slashing risk, lending has counterparty risk, and PPNs depend on issuer solvency.

Are there options vaults on Bitcoin L2s?

As of mid-2026, no dedicated options vault protocols operate natively on Bitcoin L2s. The BTCFi ecosystem on chains like Stacks and BOB is focused on lending, borrowing, and staking. Options-based Bitcoin structured products currently require either EVM chains (using wrapped BTC) or centralized platforms. This represents a significant gap in the market as Bitcoin L2 infrastructure continues to develop.

This tool is for informational purposes only and does not constitute financial advice. Structured products involve significant risks including smart contract risk, counterparty risk, and potential loss of yield or principal. APY figures are historical or projected and are not guaranteed. Always verify current product terms, fees, and risks directly with the platform before investing.