diff --git a/src/app/api/core/markets.py b/src/app/api/core/markets.py
index 6b53f61..8f32795 100644
--- a/src/app/api/core/markets.py
+++ b/src/app/api/core/markets.py
@@ -13,21 +13,28 @@ class ProductInfo(BaseModel):
     price: float = 0.0
     volume_24h: float = 0.0
     currency: str = ""
+    provider: str = ""
+    
+    def init(self, provider:str):
+        self.provider = provider
 
     @staticmethod
     def aggregate(products: dict[str, list['ProductInfo']]) -> list['ProductInfo']:
         """
-        Aggregates a list of ProductInfo by symbol.
+        Aggregates a list of ProductInfo by symbol across different providers.
         Args:
             products (dict[str, list[ProductInfo]]): Map provider -> list of ProductInfo
         Returns:
-            list[ProductInfo]: List of ProductInfo aggregated by symbol
+            list[ProductInfo]: List of ProductInfo aggregated by symbol, combining data from all providers
         """
 
-        # Costruzione mappa symbol -> lista di ProductInfo
+        # Costruzione mappa symbol -> lista di ProductInfo (da tutti i provider)
         symbols_infos: dict[str, list[ProductInfo]] = {}
-        for _, product_list in products.items():
+        for provider_name, product_list in products.items():
             for product in product_list:
+                # Assicuriamo che il provider sia impostato
+                if not product.provider:
+                    product.provider = provider_name
                 symbols_infos.setdefault(product.symbol, []).append(product)
 
         # Aggregazione per ogni symbol
@@ -37,13 +44,24 @@ class ProductInfo(BaseModel):
 
             product.id = f"{symbol}_AGGREGATED"
             product.symbol = symbol
-            product.currency = next(p.currency for p in product_list if p.currency)
+            product.currency = next((p.currency for p in product_list if p.currency), "")
+            
+            # Raccogliamo i provider che hanno fornito dati
+            providers = [p.provider for p in product_list if p.provider]
+            product.provider = ", ".join(set(providers)) if providers else "AGGREGATED"
 
-            volume_sum = sum(p.volume_24h for p in product_list)
+            # Calcolo del volume medio
+            volume_sum = sum(p.volume_24h for p in product_list if p.volume_24h > 0)
             product.volume_24h = volume_sum / len(product_list) if product_list else 0.0
 
-            prices = sum(p.price * p.volume_24h for p in product_list)
-            product.price = (prices / volume_sum) if volume_sum > 0 else 0.0
+            # Calcolo del prezzo pesato per volume (VWAP - Volume Weighted Average Price)
+            if volume_sum > 0:
+                prices_weighted = sum(p.price * p.volume_24h for p in product_list if p.volume_24h > 0)
+                product.price = prices_weighted / volume_sum
+            else:
+                # Se non c'è volume, facciamo una media semplice dei prezzi
+                valid_prices = [p.price for p in product_list if p.price > 0]
+                product.price = sum(valid_prices) / len(valid_prices) if valid_prices else 0.0
 
             aggregated_products.append(product)
         return aggregated_products
diff --git a/src/app/api/tools/market_tool.py b/src/app/api/tools/market_tool.py
index 649f9d4..409d380 100644
--- a/src/app/api/tools/market_tool.py
+++ b/src/app/api/tools/market_tool.py
@@ -104,7 +104,9 @@ class MarketAPIsTool(MarketWrapper, Toolkit):
         Raises:
             Exception: If all providers fail to return results.
         """
-        all_products = self.handler.try_call_all(lambda w: w.get_products(asset_ids))
+        all_products: dict[str, list[ProductInfo]] = {}
+        for asset in asset_ids:
+            all_products[asset] = self.handler.try_call_all(lambda w: w.get_product(asset))
         return ProductInfo.aggregate(all_products)
 
     def get_historical_prices_aggregated(self, asset_id: str = "BTC", limit: int = 100) -> list[Price]:
diff --git a/tests/utils/test_market_aggregator.py b/tests/utils/test_market_aggregator.py
index bce0b90..644d107 100644
--- a/tests/utils/test_market_aggregator.py
+++ b/tests/utils/test_market_aggregator.py
@@ -139,7 +139,7 @@ class TestMarketDataAggregator:
 
         info = aggregated[0]
         assert info is not None
-        assert info.id == "BTC-USD_AGGREGATED"
+        assert info.id == "BTC_AGGREGATED"
         assert info.symbol == "BTC"
         assert info.currency == "USD"
         assert info.price == pytest.approx(100000.0, rel=1e-3) # type: ignore