diff --git a/src/ApiClient.php b/src/ApiClient.php
index 9753503..6aba35a 100644
--- a/src/ApiClient.php
+++ b/src/ApiClient.php
@@ -261,7 +261,7 @@ private function validateIntervals(string $interval): void
     {
         $allowedIntervals = [self::INTERVAL_1_DAY, self::INTERVAL_1_WEEK, self::INTERVAL_1_MONTH];
         if (!\in_array($interval, $allowedIntervals)) {
-            throw new \InvalidArgumentException(sprintf('Interval must be one of: %s', implode(', ', $allowedIntervals)));
+            throw new \InvalidArgumentException(\sprintf('Interval must be one of: %s', implode(', ', $allowedIntervals)));
         }
     }
 
diff --git a/src/Exception/InvalidValueException.php b/src/Exception/InvalidValueException.php
index c167298..49a2d6c 100644
--- a/src/Exception/InvalidValueException.php
+++ b/src/Exception/InvalidValueException.php
@@ -8,6 +8,6 @@ class InvalidValueException extends \Exception
 {
     public function __construct(string $type)
     {
-        parent::__construct(sprintf('Not a %s', $type));
+        parent::__construct(\sprintf('Not a %s', $type));
     }
 }
diff --git a/src/ResultDecoder.php b/src/ResultDecoder.php
index 65ca633..9a5a4bc 100644
--- a/src/ResultDecoder.php
+++ b/src/ResultDecoder.php
@@ -150,7 +150,7 @@ private function createSearchResultFromJson(array $json): SearchResult
     {
         $missingFields = array_diff(self::SEARCH_RESULT_FIELDS, array_keys($json));
         if ($missingFields) {
-            throw new ApiException(sprintf('Search result is missing fields: %s', implode(', ', $missingFields)), ApiException::INVALID_RESPONSE);
+            throw new ApiException(\sprintf('Search result is missing fields: %s', implode(', ', $missingFields)), ApiException::INVALID_RESPONSE);
         }
 
         return new SearchResult(
@@ -178,7 +178,7 @@ private function validateHeaderLines(string $responseBody, array $expectedHeader
         $headerLine = array_shift($lines);
         $expectedHeaderLine = implode(',', $expectedHeader);
         if ($headerLine !== $expectedHeaderLine) {
-            throw new ApiException(sprintf('CSV header line did not match expected header line, given: %s, expected: %s', $headerLine, $expectedHeaderLine), ApiException::INVALID_RESPONSE);
+            throw new ApiException(\sprintf('CSV header line did not match expected header line, given: %s, expected: %s', $headerLine, $expectedHeaderLine), ApiException::INVALID_RESPONSE);
         }
 
         return $lines;
@@ -189,7 +189,7 @@ private function validateDate(string $value): \DateTime
         try {
             return new \DateTime($value, new \DateTimeZone('UTC'));
         } catch (\Exception $e) {
-            throw new ApiException(sprintf('Not a date in column "Date":%s', $value), ApiException::INVALID_VALUE);
+            throw new ApiException(\sprintf('Not a date in column "Date":%s', $value), ApiException::INVALID_VALUE);
         }
     }
 
@@ -217,19 +217,19 @@ private function createHistoricalData(array $json, int $index): HistoricalData
         if ($dateStr) {
             $date = $this->validateDate($dateStr);
         } else {
-            throw new ApiException(sprintf('Not a date in column "Date":%s', $dateStr), ApiException::INVALID_VALUE);
+            throw new ApiException(\sprintf('Not a date in column "Date":%s', $json['timestamp'][$index]), ApiException::INVALID_VALUE);
         }
 
         foreach (['open', 'high', 'low', 'close', 'volume'] as $column) {
             $columnValue = $json['indicators']['quote'][0][$column][$index];
             if (!is_numeric($columnValue) && 'null' !== $columnValue) {
-                throw new ApiException(sprintf('Not a number in column "%s": %s', $column, $column), ApiException::INVALID_VALUE);
+                throw new ApiException(\sprintf('Not a number in column "%s": %s', $column, $column), ApiException::INVALID_VALUE);
             }
         }
 
         $columnValue = $json['indicators']['adjclose'][0]['adjclose'][$index];
         if (!is_numeric($columnValue) && 'null' !== $columnValue) {
-            throw new ApiException(sprintf('Not a number in column "%s": %s', 'adjclose', 'adjclose'), ApiException::INVALID_VALUE);
+            throw new ApiException(\sprintf('Not a number in column "%s": %s', 'adjclose', 'adjclose'), ApiException::INVALID_VALUE);
         }
 
         $open = (float) $json['indicators']['quote'][0]['open'][$index];
@@ -260,7 +260,7 @@ private function createDividendData(array $json): DividendData
         if ($dateStr) {
             $date = $this->validateDate($dateStr);
         } else {
-            throw new ApiException(sprintf('Not a date in column "Date":%s', $dateStr), ApiException::INVALID_VALUE);
+            throw new ApiException(\sprintf('Not a date in column "Date":%s', $json['date']), ApiException::INVALID_VALUE);
         }
 
         $dividends = (float) $json['amount'];
@@ -286,7 +286,7 @@ private function createSplitData(array $json): SplitData
         if ($dateStr) {
             $date = $this->validateDate($dateStr);
         } else {
-            throw new ApiException(sprintf('Not a date in column "Date":%s', $dateStr), ApiException::INVALID_VALUE);
+            throw new ApiException(\sprintf('Not a date in column "Date":%s', $json['date']), ApiException::INVALID_VALUE);
         }
 
         $stockSplits = (string) $json['splitRatio'];
@@ -318,7 +318,7 @@ private function createQuote(array $json): Quote
                 try {
                     $mappedValues[$field] = $this->valueMapper->mapValue($value, $type);
                 } catch (InvalidValueException $e) {
-                    throw new ApiException(sprintf('Not a %s in field "%s": %s', $type, $field, $value), ApiException::INVALID_VALUE, $e);
+                    throw new ApiException(\sprintf('Not a %s in field "%s": %s', $type, $field, $value), ApiException::INVALID_VALUE, $e);
                 }
             }
         }
@@ -378,7 +378,7 @@ private function createOptionChain(array $json): OptionChain
                     $mappedValues[$field] = $this->valueMapper->mapValue($value, $type);
                 }
             } catch (InvalidValueException $e) {
-                throw new ApiException(sprintf('%s in field "%s": %s', $e->getMessage(), $field, json_encode($value)), ApiException::INVALID_VALUE, $e);
+                throw new ApiException(\sprintf('%s in field "%s": %s', $e->getMessage(), $field, json_encode($value)), ApiException::INVALID_VALUE, $e);
             }
         }
 
@@ -406,7 +406,7 @@ private function createOption(array $json): Option
                     $mappedValues[$field] = $this->valueMapper->mapValue($value, $type);
                 }
             } catch (InvalidValueException $e) {
-                throw new ApiException(sprintf('%s in field "%s": %s', $e->getMessage(), $field, json_encode($value)), ApiException::INVALID_VALUE, $e);
+                throw new ApiException(\sprintf('%s in field "%s": %s', $e->getMessage(), $field, json_encode($value)), ApiException::INVALID_VALUE, $e);
             }
         }
 
@@ -423,7 +423,7 @@ private function createOptionContract(array $values): OptionContract
             try {
                 $mappedValues[$property] = $this->valueMapper->mapValue($value, self::OPTION_CONTRACT_FIELDS_MAP[$property]);
             } catch (InvalidValueException $e) {
-                throw new ApiException(sprintf('%s in field "%s": %s', $e->getMessage(), $property, json_encode($value)), ApiException::INVALID_VALUE, $e);
+                throw new ApiException(\sprintf('%s in field "%s": %s', $e->getMessage(), $property, json_encode($value)), ApiException::INVALID_VALUE, $e);
             }
         }
 
diff --git a/src/ValueMapper.php b/src/ValueMapper.php
index 3b6db58..1bf1b29 100644
--- a/src/ValueMapper.php
+++ b/src/ValueMapper.php
@@ -52,7 +52,7 @@ public function mapValue($rawValue, string $type, ?string $subType = null)
 
                 return $this->mapArray($rawValue, $subType);
             default:
-                throw new \InvalidArgumentException(sprintf('Invalid data type %s', $type));
+                throw new \InvalidArgumentException(\sprintf('Invalid data type %s', $type));
         }
     }