diff --git a/qiskit_finance/data_providers/data_on_demand_provider.py b/qiskit_finance/data_providers/data_on_demand_provider.py
index 9bf791d..5ac5f9d 100644
--- a/qiskit_finance/data_providers/data_on_demand_provider.py
+++ b/qiskit_finance/data_providers/data_on_demand_provider.py
@@ -10,8 +10,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-""" NASDAQ Data on demand data provider. """
-
 from __future__ import annotations
 import datetime
 from urllib.parse import urlencode
diff --git a/qiskit_finance/data_providers/exchange_data_provider.py b/qiskit_finance/data_providers/exchange_data_provider.py
index b35cee0..b017d81 100644
--- a/qiskit_finance/data_providers/exchange_data_provider.py
+++ b/qiskit_finance/data_providers/exchange_data_provider.py
@@ -10,8 +10,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-""" Exchange data provider. """
-
 from __future__ import annotations
 import logging
 import datetime
diff --git a/qiskit_finance/data_providers/random_data_provider.py b/qiskit_finance/data_providers/random_data_provider.py
index dfda7a8..5a88766 100644
--- a/qiskit_finance/data_providers/random_data_provider.py
+++ b/qiskit_finance/data_providers/random_data_provider.py
@@ -10,8 +10,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-""" Pseudo-randomly generated mock stock-market data provider """
-
 from __future__ import annotations
 import datetime
 import logging
diff --git a/qiskit_finance/data_providers/wikipedia_data_provider.py b/qiskit_finance/data_providers/wikipedia_data_provider.py
index 061899a..1914526 100644
--- a/qiskit_finance/data_providers/wikipedia_data_provider.py
+++ b/qiskit_finance/data_providers/wikipedia_data_provider.py
@@ -10,7 +10,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-""" Wikipedia data provider. """
 from __future__ import annotations
 import logging
 import datetime
diff --git a/qiskit_finance/data_providers/yahoo_data_provider.py b/qiskit_finance/data_providers/yahoo_data_provider.py
index bbe5cf3..65f4665 100644
--- a/qiskit_finance/data_providers/yahoo_data_provider.py
+++ b/qiskit_finance/data_providers/yahoo_data_provider.py
@@ -10,8 +10,6 @@
 # copyright notice, and modified files need to carry a notice indicating
 # that they have been altered from the originals.
 
-""" Yahoo data provider. """
-
 from __future__ import annotations
 import datetime
 import logging