diff --git a/src/Plugins/Parallel/Paratest/WrapperRunner.php b/src/Plugins/Parallel/Paratest/WrapperRunner.php
index 19ce3d1a4..2e817aaa3 100644
--- a/src/Plugins/Parallel/Paratest/WrapperRunner.php
+++ b/src/Plugins/Parallel/Paratest/WrapperRunner.php
@@ -33,12 +33,15 @@
 use function array_merge;
 use function array_merge_recursive;
 use function array_shift;
+use function array_unique;
+use function array_values;
 use function assert;
 use function count;
 use function dirname;
 use function file_get_contents;
 use function max;
 use function realpath;
+use function str_contains;
 use function str_starts_with;
 use function unlink;
 use function unserialize;
@@ -107,6 +110,11 @@ final class WrapperRunner implements RunnerInterface
     /** @var non-empty-string[] */
     private readonly array $parameters;
 
+    /** @var list<string>|null */
+    private ?array $stopOutcomeChars = null;
+
+    private bool $stopRequested = false;
+
     /**
      * The code coverage filter registry.
      */
@@ -210,10 +218,7 @@ private function assignAllPendingTests(): void
                     $worker = $this->startWorker($token);
                 }
 
-                if (
-                    $this->exitcode > 0
-                    && $this->options->configuration->stopOnFailure()
-                ) {
+                if ($this->shouldStop()) {
                     $this->pending = [];
                 } elseif (($pending = array_shift($this->pending)) !== null) {
                     $worker->assign($pending);
@@ -225,6 +230,80 @@ private function assignAllPendingTests(): void
         }
     }
 
+    private function shouldStop(): bool
+    {
+        if ($this->stopRequested) {
+            return true;
+        }
+
+        $outcomes = $this->stopOutcomeChars();
+        if ($outcomes === []) {
+            return false;
+        }
+
+        foreach ($this->workers as $worker) {
+            $progress = file_get_contents($worker->progressFile->getPathname());
+            if ($progress === false || $progress === '') {
+                continue;
+            }
+
+            foreach ($outcomes as $outcome) {
+                if (str_contains($progress, $outcome)) {
+                    return $this->stopRequested = true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * @return list<string>
+     */
+    private function stopOutcomeChars(): array
+    {
+        if ($this->stopOutcomeChars !== null) {
+            return $this->stopOutcomeChars;
+        }
+
+        $configuration = $this->options->configuration;
+        $outcomes = [];
+
+        if ($configuration->stopOnFailure() || $configuration->stopOnDefect()) {
+            $outcomes[] = 'F';
+        }
+
+        if ($configuration->stopOnError() || $configuration->stopOnDefect()) {
+            $outcomes[] = 'E';
+        }
+
+        if ($configuration->stopOnRisky() || $configuration->stopOnDefect()) {
+            $outcomes[] = 'R';
+        }
+
+        if ($configuration->stopOnIncomplete() || $configuration->stopOnDefect()) {
+            $outcomes[] = 'I';
+        }
+
+        if ($configuration->stopOnWarning()) {
+            $outcomes[] = 'W';
+        }
+
+        if ($configuration->stopOnNotice()) {
+            $outcomes[] = 'N';
+        }
+
+        if ($configuration->stopOnDeprecation()) {
+            $outcomes[] = 'D';
+        }
+
+        if ($configuration->stopOnSkipped()) {
+            $outcomes[] = 'S';
+        }
+
+        return $this->stopOutcomeChars = array_values(array_unique($outcomes));
+    }
+
     private function flushWorker(WrapperWorker $worker): void
     {
         $this->exitcode = max($this->exitcode, $worker->getExitCode());
diff --git a/tests/.snapshots/success.txt b/tests/.snapshots/success.txt
index 0e38f50f0..68bf017b6 100644
--- a/tests/.snapshots/success.txt
+++ b/tests/.snapshots/success.txt
@@ -1908,6 +1908,23 @@
   ✓ parallel
   ✓ a parallel test can extend another test with same name
   ✓ parallel reports invalid datasets as failures
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('fails')
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('errors')
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('is risky')
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('is incomplete')
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('warns')
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('notices')
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('deprecates')
+  ✓ parallel stop-on-* fixture runs every case without a stop flag with ('is skipped')
+  ✓ parallel honors --stop-on-* with dataset "failure"
+  ✓ parallel honors --stop-on-* with dataset "defect"
+  ✓ parallel honors --stop-on-* with dataset "error"
+  ✓ parallel honors --stop-on-* with dataset "risky"
+  ✓ parallel honors --stop-on-* with dataset "incomplete"
+  ✓ parallel honors --stop-on-* with dataset "warning"
+  ✓ parallel honors --stop-on-* with dataset "notice"
+  ✓ parallel honors --stop-on-* with dataset "deprecation"
+  ✓ parallel honors --stop-on-* with dataset "skipped"
 
    PASS  Tests\Visual\ParallelNestedDatasets
   ✓ parallel loads nested datasets from nested directories
@@ -1941,4 +1958,4 @@
   ✓ pass with dataset with ('my-datas-set-value')
   ✓ within describe → pass with dataset with ('my-datas-set-value')
 
-  Tests:    2 deprecated, 4 warnings, 5 incomplete, 2 notices, 40 todos, 35 skipped, 1330 passed (3010 assertions)
\ No newline at end of file
+  Tests:    2 deprecated, 4 warnings, 5 incomplete, 2 notices, 40 todos, 35 skipped, 1347 passed (3027 assertions)
\ No newline at end of file
diff --git a/tests/.tests/ParallelStopOn/HasDeprecationTest.php b/tests/.tests/ParallelStopOn/HasDeprecationTest.php
new file mode 100644
index 000000000..47e031b06
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasDeprecationTest.php
@@ -0,0 +1,7 @@
+<?php
+
+it('deprecates', function () {
+    trigger_error('user deprecation', E_USER_DEPRECATED);
+
+    expect(true)->toBeTrue();
+});
diff --git a/tests/.tests/ParallelStopOn/HasErrorTest.php b/tests/.tests/ParallelStopOn/HasErrorTest.php
new file mode 100644
index 000000000..7c9d0ed5d
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasErrorTest.php
@@ -0,0 +1,5 @@
+<?php
+
+it('errors', function () {
+    throw new RuntimeException('boom');
+});
diff --git a/tests/.tests/ParallelStopOn/HasFailureTest.php b/tests/.tests/ParallelStopOn/HasFailureTest.php
new file mode 100644
index 000000000..99aeb933e
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasFailureTest.php
@@ -0,0 +1,3 @@
+<?php
+
+it('fails')->assertTrue(false);
diff --git a/tests/.tests/ParallelStopOn/HasIncompleteTest.php b/tests/.tests/ParallelStopOn/HasIncompleteTest.php
new file mode 100644
index 000000000..9c9fff147
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasIncompleteTest.php
@@ -0,0 +1,5 @@
+<?php
+
+it('is incomplete', function () {
+    $this->markTestIncomplete('work in progress');
+});
diff --git a/tests/.tests/ParallelStopOn/HasNoticeTest.php b/tests/.tests/ParallelStopOn/HasNoticeTest.php
new file mode 100644
index 000000000..552f11b23
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasNoticeTest.php
@@ -0,0 +1,7 @@
+<?php
+
+it('notices', function () {
+    trigger_error('user notice', E_USER_NOTICE);
+
+    expect(true)->toBeTrue();
+});
diff --git a/tests/.tests/ParallelStopOn/HasRiskyTest.php b/tests/.tests/ParallelStopOn/HasRiskyTest.php
new file mode 100644
index 000000000..5519b1ad0
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasRiskyTest.php
@@ -0,0 +1,5 @@
+<?php
+
+it('is risky', function () {
+    // no assertions
+});
diff --git a/tests/.tests/ParallelStopOn/HasSkippedTest.php b/tests/.tests/ParallelStopOn/HasSkippedTest.php
new file mode 100644
index 000000000..c212bb129
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasSkippedTest.php
@@ -0,0 +1,3 @@
+<?php
+
+it('is skipped')->skip('skipping');
diff --git a/tests/.tests/ParallelStopOn/HasWarningTest.php b/tests/.tests/ParallelStopOn/HasWarningTest.php
new file mode 100644
index 000000000..8fae1020d
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/HasWarningTest.php
@@ -0,0 +1,7 @@
+<?php
+
+it('warns', function () {
+    trigger_error('user warning', E_USER_WARNING);
+
+    expect(true)->toBeTrue();
+});
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing01Test.php b/tests/.tests/ParallelStopOn/Passing/Passing01Test.php
new file mode 100644
index 000000000..8dc2e1fb5
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing01Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 01')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing02Test.php b/tests/.tests/ParallelStopOn/Passing/Passing02Test.php
new file mode 100644
index 000000000..86045d01e
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing02Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 02')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing03Test.php b/tests/.tests/ParallelStopOn/Passing/Passing03Test.php
new file mode 100644
index 000000000..057c6070f
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing03Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 03')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing04Test.php b/tests/.tests/ParallelStopOn/Passing/Passing04Test.php
new file mode 100644
index 000000000..883200ba6
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing04Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 04')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing05Test.php b/tests/.tests/ParallelStopOn/Passing/Passing05Test.php
new file mode 100644
index 000000000..8a050a111
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing05Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 05')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing06Test.php b/tests/.tests/ParallelStopOn/Passing/Passing06Test.php
new file mode 100644
index 000000000..ceef2a2fb
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing06Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 06')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing07Test.php b/tests/.tests/ParallelStopOn/Passing/Passing07Test.php
new file mode 100644
index 000000000..1f0a6b0f6
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing07Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 07')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing08Test.php b/tests/.tests/ParallelStopOn/Passing/Passing08Test.php
new file mode 100644
index 000000000..bae06622c
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing08Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 08')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing09Test.php b/tests/.tests/ParallelStopOn/Passing/Passing09Test.php
new file mode 100644
index 000000000..bcc6b5e14
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing09Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 09')->assertTrue(true);
diff --git a/tests/.tests/ParallelStopOn/Passing/Passing10Test.php b/tests/.tests/ParallelStopOn/Passing/Passing10Test.php
new file mode 100644
index 000000000..edc06d046
--- /dev/null
+++ b/tests/.tests/ParallelStopOn/Passing/Passing10Test.php
@@ -0,0 +1,3 @@
+<?php
+
+it('passes 10')->assertTrue(true);
diff --git a/tests/Visual/Parallel.php b/tests/Visual/Parallel.php
index d497eef3c..1fb444168 100644
--- a/tests/Visual/Parallel.php
+++ b/tests/Visual/Parallel.php
@@ -47,3 +47,33 @@
         ->toContain('Tests:    1 failed, 1 passed (1 assertions)')
         ->toContain('Parallel: 3 processes');
 })->skipOnWindows();
+
+test('parallel stop-on-* fixture runs every case without a stop flag', function (string $testName) use ($run) {
+    $output = $run('--filter', "($testName|passes)", 'tests/.tests/ParallelStopOn');
+    expect($output)->toContain('10 passed');
+})->with([
+    'fails',
+    'errors',
+    'is risky',
+    'is incomplete',
+    'warns',
+    'notices',
+    'deprecates',
+    'is skipped',
+])->skipOnWindows();
+
+test('parallel honors --stop-on-*', function (string $flag, string $testName) use ($run) {
+    $output = $run('--filter', "($testName|passes)", $flag, 'tests/.tests/ParallelStopOn');
+    preg_match('/(\d+) passed/', $output, $matches);
+    expect((int) ($matches[1] ?? 0))->toBeLessThan(10);
+})->with([
+    'failure' => ['--stop-on-failure', 'fails'],
+    'defect' => ['--stop-on-defect', 'fails'],
+    'error' => ['--stop-on-error', 'errors'],
+    'risky' => ['--stop-on-risky', 'is risky'],
+    'incomplete' => ['--stop-on-incomplete', 'is incomplete'],
+    'warning' => ['--stop-on-warning', 'warns'],
+    'notice' => ['--stop-on-notice', 'notices'],
+    'deprecation' => ['--stop-on-deprecation', 'deprecates'],
+    'skipped' => ['--stop-on-skipped', 'is skipped'],
+])->skipOnWindows();