Sccp 403 (#2216)

* update headers

* Create sccp-403.md

* Update sccp-403.md

* Update sccp-403.md

* Update sccp-403.md

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* Update sccp-403.md

Author: kaleb-keny

content/sccp/sccp-2161.md

@@ -3,7 +3,7 @@ sccp: 2161
 network: Optimism
 title: Deprecate Low Utilization Perps V2 Markets
 author: Kaleb (@kaleb-keny)
-status: Vote_Pending
+status: Implemented
 created: 2024-05-28
 type: Governance
 ---

content/sccp/sccp-401.md

@@ -3,7 +3,7 @@ sccp: 401
 network: Ethereum & Optimism
 title: Unpause SNX staking liquidations and return mainnet to 160%
 author: Fenway
-status: Approved
+status: Implemented
 proposal: >-
   https://snapshot.org/#/snxgov.eth/proposal/0x811d38666aebfa4ca51614514ea4a57c34fdd251aee0d28794e9e7100d063b9b
 created: 2025-03-24

content/sccp/sccp-402.md

@@ -3,7 +3,7 @@ sccp: 402
 network: Base
 title: Update Perps V3 Parameters
 author: Kaleb
-status: Draft
+status: Implemented
 proposal: >-
   https://snapshot.org/#/snxgov.eth/proposal/0xa51f8998b77609107d995cb41d8194233775e402688a394770157ecadf2313d8
 created: 2025-03-28

content/sccp/sccp-403.md

@@ -0,0 +1,31 @@
+---
+sccp: 403
+network: Ethereum & Optimism
+title: Update Liquidation Ratio Schedule
+author: Kaleb
+status: Vote_Pending
+created: 2025-04-09
+proposal: >-
+  https://snapshot.org/#/snxgov.eth/proposal/0x7b38742f5d455e0bba5a967bc965b7f1041bd983b1d057355d0da59dc2fecd2f
+type: Governance
+---
+
+## Simple Summary
+
+This sccp proposes to increase the liquidation ratio as per the below schedule:
+- 11-Apr-2025: 250%
+- 18-Apr-2025: 500%
+- 21-Apr-2025: High enough to deprecate solo snx staking
+
+## Abstract
+
+The liquidation ratio is the ratio at which accounts on v3 ethereum and optimism are liquidated. The SNX and debt are allocated to treasury when a liquidation is enacted.
+
+## Motivation
+
+The motivation is to deprecate solo staking in favor of  [420 POL staking](https://sips.synthetix.io/sips/sip-420). Note that solo stakers having a collateralization ratios well above 160% are able to claim back their SNX and debt from Treasury within a 6 months period after the date of their liquidations  `(i.e. before 21-Oct-2025). However the accounts' collateralization ratio needs to remain above the 160% during the grace period in order to be eligible. If the ratio dips below 160% during the grace period, the accounts' SNX is considered to be forfeited, as per the standard liquidation rules outlines in [SCCP-401](https://sips.synthetix.io/sccp/sccp-401/).
+Users who are liquidated are encouraged to open tickets in [Synthetix Discord](https://discord.gg/HSgeHuVs) in order to claim back that liquidated SNX.
+
+## Copyright
+
+Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).