diff --git a/openspec/changes/trading-day-redefinition/design.md b/openspec/archive/trading-day-redefinition/design.md similarity index 100% rename from openspec/changes/trading-day-redefinition/design.md rename to openspec/archive/trading-day-redefinition/design.md diff --git a/openspec/changes/trading-day-redefinition/proposal.md b/openspec/archive/trading-day-redefinition/proposal.md similarity index 100% rename from openspec/changes/trading-day-redefinition/proposal.md rename to openspec/archive/trading-day-redefinition/proposal.md diff --git a/openspec/changes/trading-day-redefinition/tasks.md b/openspec/archive/trading-day-redefinition/tasks.md similarity index 100% rename from openspec/changes/trading-day-redefinition/tasks.md rename to openspec/archive/trading-day-redefinition/tasks.md