diff --git a/.github/workflows/build-wheels.yml b/.github/workflows/build-wheels.yml
index 2c330e7..7363b30 100644
--- a/.github/workflows/build-wheels.yml
+++ b/.github/workflows/build-wheels.yml
@@ -18,13 +18,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest, macos-15-intel]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-15-intel, windows-11-arm]
         python: [cp310, cp311, cp312, cp313, cp314]
         python_impl: [Python]
         include:
           - python: cp312
             os: ubuntu-latest
             python_impl: Pyodide
+        exclude:
+          - os: windows-11-arm
+            python: cp310
+          - os: windows-11-arm
+            python: cp311
+          - os: windows-11-arm
+            python: cp312
     env:
       BUILD_COMMIT: "main"  # or a specific version, e.g., v0.13.1
       CIBW_BUILD: ${{ matrix.python }}-*
@@ -33,8 +40,8 @@ jobs:
       # No support for pypy, musl, Win32 for 3.10+
       # Skip musl for 3.8 and 3.9 since no upstream wheels
       CIBW_SKIP: "pp* *-win32 *musllinux_aarch64*"
-      CIBW_TEST_REQUIRES: pytest pytest-xdist
-      CIBW_TEST_COMMAND: python -c "import statsmodels; statsmodels.test(['-m','(not slow and not example)','-n','2'], exit=True)"
+      CIBW_TEST_REQUIRES: pytest pytest-xdist pytest-randomly threadpoolctl
+      CIBW_TEST_COMMAND: python -c "import numpy; numpy.show_runtime(); import statsmodels; statsmodels.test(['-m','(not slow and not example)','-n','2'], exit=True)"
       # Avoid testing on emulated architectures and Pyodide
       CIBW_TEST_SKIP: "*-*linux_{aarch64,ppc64le,s390x} *pyodide*"
       CIBW_REPAIR_WHEEL_COMMAND_LINUX: 'auditwheel repair --strip -w {dest_dir} {wheel}'
@@ -101,6 +108,7 @@ jobs:
 
       - name: Install conda
         uses: conda-incubator/setup-miniconda@v3
+        if: (runner.os != 'Windows') || ((runner.os == 'Windows') && (runner.arch != 'ARM64'))
         with:
           # for installation of anaconda-client, required for upload to
           # anaconda.org
@@ -112,11 +120,20 @@ jobs:
           miniforge-version: latest
           conda-remove-defaults: "true"
 
-      - name: Inspect conda
+      - name: Inspect conda and install anaconda-client
         shell: pwsh
+        if: (runner.os != 'Windows') || ((runner.os == 'Windows') && (runner.arch != 'ARM64'))
         run: |
           conda info
           conda list
+          conda install -y anaconda-client
+
+      - name: Install anaconda-client (Windows ARM64)
+        shell: pwsh
+        if: ((runner.os == 'Windows') && (runner.arch == 'ARM64'))
+        run: |
+          python -m pip install pip -U
+          pip install --only-binary :all: anaconda-client
 
       - name: Upload wheels
         if: ${{ always() }}
@@ -137,7 +154,6 @@ jobs:
           echo ${PWD}
           if ( $env:ANACONDA_UPLOAD -eq "true")
           {
-            conda install -y anaconda-client
             echo "Uploading to $env:ANACONDA_ORG"
             # main branches of these two packages
             ls ./wheelhouse/*.whl
diff --git a/statsmodels b/statsmodels
index e1efaa5..ba664a0 160000
--- a/statsmodels
+++ b/statsmodels
@@ -1 +1 @@
-Subproject commit e1efaa5741df495ad6afeb4fc0867d3d87c93cfe
+Subproject commit ba664a0303ccb0b0137a50d85e14604307fef681