diff --git a/app/cron_financial_statements.py b/app/cron_financial_statements.py
index ee0ce2e..240c4c9 100644
--- a/app/cron_financial_statements.py
+++ b/app/cron_financial_statements.py
@@ -1,5 +1,6 @@
 import os
 import ujson
+import orjson
 import asyncio
 import aiohttp
 import sqlite3
@@ -29,7 +30,53 @@ async def fetch_data(session, url, symbol, attempt=0):
 async def save_json(symbol, period, data_type, data):
     os.makedirs(f"json/financial-statements/{data_type}/{period}/", exist_ok=True)
     with open(f"json/financial-statements/{data_type}/{period}/{symbol}.json", 'w') as file:
-        ujson.dump(data, file)
+        ujson.dumps(data,file)
+
+async def calculate_margins(symbol):
+    for period in ['annual', 'quarter']:
+        # Load income statement data
+        income_path = f"json/financial-statements/income-statement/{period}/{symbol}.json"
+        with open(income_path, "r") as file:
+            income_data = orjson.loads(file.read())
+
+        # Load cash flow statement data
+        cash_flow_path = f"json/financial-statements/cash-flow-statement/{period}/{symbol}.json"
+        with open(cash_flow_path, "r") as file:
+            cash_flow_data = orjson.loads(file.read())
+
+        # Load ratios data
+        ratios_path = f"json/financial-statements/ratios/{period}/{symbol}.json"
+        with open(ratios_path, "r") as file:
+            ratio_data = orjson.loads(file.read())
+
+        # Ensure all datasets are available and iterate through the items
+        if income_data and cash_flow_data and ratio_data:
+            for ratio_item, income_item, cash_flow_item in zip(ratio_data, income_data, cash_flow_data):
+                # Extract required data
+                revenue = income_item.get('revenue', 0)
+                ebitda = income_item.get('ebitda',0)
+                free_cash_flow = cash_flow_item.get('freeCashFlow', 0)
+
+                # Calculate freeCashFlowMargin if data is valid
+                if revenue != 0:  # Avoid division by zero
+                    ratio_item['freeCashFlowMargin'] = round((free_cash_flow / revenue) * 100, 2)
+                    ratio_item['ebitdaMargin'] = round((ebitda / revenue) * 100,2)
+                    ratio_item['grossProfitMargin'] = round(ratio_item['grossProfitMargin']*100,2)
+                    ratio_item['operatingProfitMargin'] = round(ratio_item['operatingProfitMargin']*100,2)
+                    ratio_item['pretaxProfitMargin'] = round(ratio_item['pretaxProfitMargin']*100,2)
+                    ratio_item['netProfitMargin'] = round(ratio_item['netProfitMargin']*100,2)
+                else:
+                    ratio_item['freeCashFlowMargin'] = None  # Handle missing or zero revenue
+                    ratio_item['ebitdaMargin'] = None
+                    ratio_item['grossProfitMargin'] = None
+                    ratio_item['operatingProfitMargin'] = None
+                    ratio_item['pretaxProfitMargin'] = None
+                    ratio_item['netProfitMargin'] = None
+
+            # Save the updated ratios data back to the JSON file
+            with open(ratios_path, "wb") as file:
+                file.write(orjson.dumps(data,option=orjson.OPT_SERIALIZE_NUMPY).decode('utf-8'))
+
 
 async def get_financial_statements(session, symbol, semaphore, request_counter):
     base_url = "https://financialmodelingprep.com/api/v3"
@@ -80,7 +127,7 @@ async def get_financial_statements(session, symbol, semaphore, request_counter):
             await asyncio.sleep(60)  # Pause for 60 seconds
             request_counter[0] = 0  # Reset the request counter after the pause
     
-
+    await calculate_margins(symbol)
 
 async def run():
     con = sqlite3.connect('stocks.db')
diff --git a/app/primary_cron_job.py b/app/primary_cron_job.py
index 9e568ef..d07a7aa 100755
--- a/app/primary_cron_job.py
+++ b/app/primary_cron_job.py
@@ -237,7 +237,7 @@ def run_market_moods():
 def run_db_schedule_job():
     #update db daily
     week = datetime.today().weekday()
-    if week <= 4:
+    if week <= 5:
         run_command(["bash", "run_universe.sh"])