diff --git a/.sonarlint/csharp.ruleset b/.sonarlint/csharp.ruleset
index 5dff3f86..f875a338 100644
--- a/.sonarlint/csharp.ruleset
+++ b/.sonarlint/csharp.ruleset
@@ -11,5 +11,7 @@
     <Rule Id="S2245" Action="None" />
     <!-- S3604: Remove member initializer - null! is intentional -->
     <Rule Id="S3604" Action="None" />
+    <!-- S1244: Floating point equality - exact-zero div guards and tie detection are intentional in quantitative indicators -->
+    <Rule Id="S1244" Action="None" />
   </Rules>
 </RuleSet>
diff --git a/Directory.Build.props b/Directory.Build.props
index 3e66c1e5..c56b673f 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -64,8 +64,9 @@
   <PropertyGroup>
     <!-- S3604: "Remove member initializer" - null! is intentional for nullable reference types in Quantower adapters -->
     <!-- S107: "Methods should not have too many parameters" - high-performance SIMD methods require multiple parameters for zero-allocation patterns -->
+    <!-- S1244: "Do not check floating point equality with exact values" - exact-zero div guards and exact-equality tie detection are fundamental patterns in quantitative indicators -->
     <!-- MA0007: "Add comma after the last value" - trailing commas not enforced in this codebase -->
-    <NoWarn>$(NoWarn);S107;S1144;S1944;S2053;S2245;S2259;S2583;S2589;S3329;S3604;S3655;S3776;S3949;S3966;S4158;S4347;S5773;S6781;MA0007;MA0048;MA0051;MA0076;RCS1123;RCS1159;IDE0007</NoWarn>
+    <NoWarn>$(NoWarn);S107;S1144;S1244;S1944;S2053;S2245;S2259;S2583;S2589;S3329;S3604;S3655;S3776;S3949;S3966;S4158;S4347;S5773;S6781;MA0007;MA0048;MA0051;MA0076;RCS1123;RCS1159;IDE0007</NoWarn>
   </PropertyGroup>
 
   <!-- Code Coverage Configuration (for NDepend integration) -->