diff --git a/Taskfile.yaml b/Taskfile.yaml
index 181b872..c7b8053 100644
--- a/Taskfile.yaml
+++ b/Taskfile.yaml
@@ -77,4 +77,11 @@ tasks:
         deps:
             - release:pre
         cmds:
-            - cargo release patch --execute
\ No newline at end of file
+            - cargo release patch --execute
+
+    fmt+lint:
+        desc: 🎨🧶 format and lint rustler
+        cmds:
+            - task fmt
+            - git add .
+            - task lint
\ No newline at end of file
diff --git a/lib/entities/migration/m20240325_200049_create_table_ticker.rs b/lib/entities/migration/m20240325_200049_create_table_ticker.rs
index ab50754..5be4d44 100644
--- a/lib/entities/migration/m20240325_200049_create_table_ticker.rs
+++ b/lib/entities/migration/m20240325_200049_create_table_ticker.rs
@@ -14,6 +14,7 @@ impl MigrationTrait for Migration {
                     .if_not_exists()
                     .col(ColumnDef::new(Ticker::Id).string().not_null().primary_key())
                     .col(ColumnDef::new(Ticker::Symbol).string().not_null())
+                    .col(ColumnDef::new(Ticker::QuoteSymbol).string().null())
                     .col(ColumnDef::new(Ticker::MarketId).string().not_null())
                     .foreign_key(
                         ForeignKey::create()
@@ -45,6 +46,9 @@ enum Ticker {
     Id,
     /// Ticker symbol (e.g. "GOOGL")
     Symbol,
+    /// Quote symbol (e.g. "USD"): represents the currency in which the ticker is quoted.
+    /// Could be null, and it will imply USD
+    QuoteSymbol,
     /// Market ID
     MarketId,
 }
diff --git a/lib/entities/orm/ticker.rs b/lib/entities/orm/ticker.rs
index 6bca68e..1b341e0 100644
--- a/lib/entities/orm/ticker.rs
+++ b/lib/entities/orm/ticker.rs
@@ -9,6 +9,7 @@ pub struct Model {
     #[sea_orm(primary_key, auto_increment = false)]
     pub id: String,
     pub symbol: String,
+    pub quote_symbol: Option<String>,
     pub market_id: String,
 }
 
diff --git a/lib/grpc/proto/ticker.proto b/lib/grpc/proto/ticker.proto
index cbc3bc1..7fe995f 100644
--- a/lib/grpc/proto/ticker.proto
+++ b/lib/grpc/proto/ticker.proto
@@ -21,7 +21,8 @@ message Empty { }
 message Ticker {
     string id = 1;
     string symbol = 2;
-    string market_id = 3;
+    optional string quote_symbol = 3;
+    string market_id = 4;
 }
 
 message Tickers {
diff --git a/lib/grpc/services/ticker.rs b/lib/grpc/services/ticker.rs
index a612291..bd1079c 100644
--- a/lib/grpc/services/ticker.rs
+++ b/lib/grpc/services/ticker.rs
@@ -20,6 +20,7 @@ impl Ticker {
         ticker::Model {
             id: self.id,
             symbol: self.symbol,
+            quote_symbol: self.quote_symbol,
             market_id: self.market_id,
         }
     }
@@ -29,6 +30,7 @@ impl Ticker {
         Self {
             id: model.id,
             symbol: model.symbol,
+            quote_symbol: model.quote_symbol,
             market_id: model.market_id,
         }
     }