Ask about Lien · freeProtocol Information
A protocol for creating Options and Stablecoins out of ETH
Audits:
Methodology
TVL: Total value of all coins held in the smart contracts of the protocolView code on GitHubHacks
Date: Jul 23, 2026
Amount: $542,000
Classification: Input Validation
Technique: Missing Input Validation
Chains: Ethereum
Language: Solidity
Target Type: DeFi Protocol
Competitors
Lien history
TVL is the default DefiLlama definition. Daily values are UTC snapshots from Apr 30, 2021 to Oct 19, 2026.
All-time high TVL: $3.38m on May 14, 2021. All-time low TVL: $88,623 on Oct 18, 2026.
Daily TVL, Sep 20, 2026 to Oct 19, 2026
| Date | TVL |
|---|---|
| Sep 20, 2026 | $222,223 |
| Sep 21, 2026 | $223,128 |
| Sep 22, 2026 | $233,958 |
| Sep 23, 2026 | $232,446 |
| Sep 24, 2026 | $226,888 |
| Sep 25, 2026 | $227,355 |
| Sep 26, 2026 | $227,002 |
| Sep 27, 2026 | $98,961 |
| Sep 28, 2026 | $98,173 |
| Sep 29, 2026 | $98,626 |
| Sep 30, 2026 | $98,129 |
| Oct 1, 2026 | $98,527 |
| Oct 2, 2026 | $99,382 |
| Oct 3, 2026 | $98,392 |
| Oct 4, 2026 | $98,859 |
| Oct 5, 2026 | $100,061 |
| Oct 6, 2026 | $99,867 |
| Oct 7, 2026 | $95,762 |
| Oct 8, 2026 | $94,645 |
| Oct 9, 2026 | $91,638 |
| Oct 10, 2026 | $91,326 |
| Oct 11, 2026 | $92,201 |
| Oct 12, 2026 | $93,365 |
| Oct 13, 2026 | $92,031 |
| Oct 14, 2026 | $92,515 |
| Oct 15, 2026 | $88,787 |
| Oct 16, 2026 | $89,656 |
| Oct 17, 2026 | $88,905 |
| Oct 18, 2026 | $88,623 |
| Oct 19, 2026 | $88,966 |
TVL at each month end, Nov 2024 to Oct 2026
| Date | TVL |
|---|---|
| Nov 30, 2024 | $354,628 |
| Dec 31, 2024 | $330,954 |
| Jan 31, 2025 | $320,193 |
| Feb 28, 2025 | $226,636 |
| Mar 31, 2025 | $177,993 |
| Apr 30, 2025 | $176,642 |
| May 31, 2025 | $249,512 |
| Jun 30, 2025 | $246,627 |
| Jul 31, 2025 | $374,921 |
| Aug 31, 2025 | $432,006 |
| Sep 30, 2025 | $374,585 |
| Oct 31, 2025 | $339,168 |
| Nov 30, 2025 | $266,482 |
| Dec 31, 2025 | $263,354 |
| Jan 31, 2026 | $240,264 |
| Feb 28, 2026 | $171,695 |
| Mar 31, 2026 | $180,933 |
| Apr 30, 2026 | $191,909 |
| May 31, 2026 | $170,395 |
| Jun 30, 2026 | $133,786 |
| Jul 31, 2026 | $160,769 |
| Aug 31, 2026 | $204,963 |
| Sep 30, 2026 | $98,129 |
| Oct 19, 2026 (latest) | $88,966 |
TVL at each year end, Dec 31, 2021 to Dec 31, 2025
| Date | TVL |
|---|---|
| Dec 31, 2021 | $1.16m |
| Dec 31, 2022 | $117,998 |
| Dec 31, 2023 | $223,624 |
| Dec 31, 2024 | $330,954 |
| Dec 31, 2025 | $263,354 |
The .csv export on the chart above downloads every daily value. The same data is in the public API: https://api.llama.fi/protocol/lien
Frequently asked questions
What is Lien's TVL?
As of Oct 19, 2026, Lien has $88,176 in total value locked. TVL has decreased 60.2% over the past 30 days.
What chains does Lien operate on?
Lien operates on Ethereum. Ethereum holds the largest share at 100%.
How does Lien's TVL compare to similar protocols?
Among Options protocols tracked by DefiLlama, Lien ranks #29 by TVL. The category holds $211.66m across 72 protocols, and Lien accounts for <0.1% of that total. Other leading protocols include Derive V3 Options, Hegic, Panoptic V2, SOFA.org, Ribbon Earn, Opyn Gamma, Opyn Convexity, Siren, Pods Finance, and Cega V1.
Has Lien ever been exploited?
Lien has 1 recorded security incident. The most recent incident occurred on Jul 23, 2026 and involved $542,000. It was classified as Input Validation.