diff --git a/src/test/java/millions/controller/fileIO/CSV/CSVStockFileParserTest.java b/src/test/java/millions/controller/fileIO/CSV/CSVStockFileParserTest.java
index efefb7d..3c85a6c 100644
--- a/src/test/java/millions/controller/fileIO/CSV/CSVStockFileParserTest.java
+++ b/src/test/java/millions/controller/fileIO/CSV/CSVStockFileParserTest.java
@@ -22,9 +22,9 @@ public void setUpTestString() {
     exampleString = "# Top 500 US Stocks by Market Cap\n";
     exampleString += "# Ticker,Name,Price\n";
     exampleString += "\n";
-    exampleString += "NVDA,Nvidia,191.27\n";
-    exampleString += "AAPL,Apple Inc.,276.43\n";
-    exampleString += "MSFT,Microsoft,404.68\n";
+    exampleString += "NVDA,Nvidia,191.27,1;1;1;1;1;1\n";
+    exampleString += "AAPL,Apple Inc.,276.43,1;1;1;1;1;1\n";
+    exampleString += "MSFT,Microsoft,404.68,1;1;1;1;1;1\n";
 
   }
 
@@ -45,29 +45,29 @@ public void InvalidFormatExceptionTest() {
 
   @Test
   public void NumberConversionExceptionTest() {
-    exampleString += "Company, Company Inc., NotANumber";
+    exampleString += "Company, Company Inc., NotANumber,1;1;1;1;1;1";
     List<String> testList = List.of(exampleString.split("\n"));
     Exception e = assertThrows(InvalidFormatException.class, () -> {parser.parse(testList);});
-    String expectedMessage = "Error with number conversion on line: Company, Company Inc., NotANumber\n" +
-        "Last field must be a number";
+    String expectedMessage = "Error with number conversion on line: Company, Company Inc., NotANumber,1;1;1;1;1;1\n" +
+        "ensure all number fields are actually numbers";
     assertEquals(expectedMessage, e.getMessage());
   }
 
   @Test
   public void EmptySymbolFieldExceptionTest() {
-    exampleString += ",test,1";
+    exampleString += ",test,1,1;1;1;1;1;1";
     List<String> testList = List.of(exampleString.split("\n"));
     Exception e = assertThrows(InvalidFormatException.class, () -> {parser.parse(testList);});
-    String expectedMessage = "Illegal argument on line: ,test,1\n" +
+    String expectedMessage = "Illegal argument on line: ,test,1,1;1;1;1;1;1\n" +
         "Symbol cannot be null or blank";
     assertEquals(expectedMessage, e.getMessage());
   }
   @Test
   public void EmptyCompanyNameFieldExceptionTest() {
-    exampleString += "test,,1";
+    exampleString += "test,,1,1;1;1;1;1;1";
     List<String> testList = List.of(exampleString.split("\n"));
     Exception e = assertThrows(InvalidFormatException.class, () -> {parser.parse(testList);});
-    String expectedMessage = "Illegal argument on line: test,,1\n" +
+    String expectedMessage = "Illegal argument on line: test,,1,1;1;1;1;1;1\n" +
         "Company cannot be null or blank";
     assertEquals(expectedMessage, e.getMessage());
   }
diff --git a/src/test/java/millions/controller/fileIO/CSV/StockFileReaderTest.java b/src/test/java/millions/controller/fileIO/CSV/StockFileReaderTest.java
index 159c948..4b07a29 100644
--- a/src/test/java/millions/controller/fileIO/CSV/StockFileReaderTest.java
+++ b/src/test/java/millions/controller/fileIO/CSV/StockFileReaderTest.java
@@ -5,6 +5,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 
+import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 
@@ -21,14 +22,14 @@ public static void setUpTestFile() throws Exception {
     String string = "# Top 500 US Stocks by Market Cap\n";
     string += "# Ticker,Name,Price\n";
     string += "\n";
-    string += "NVDA,Nvidia,191.27\n";
-    string += "AAPL,Apple Inc.,276.43\n";
-    string += "MSFT,Microsoft,404.68\n";
+    string += "NVDA,Nvidia,191.27,1;1;1;1;1;1\n";
+    string += "AAPL,Apple Inc.,276.43,1;1;1;1;1;1\n";
+    string += "MSFT,Microsoft,404.68,1;1;1;1;1;1\n";
     Files.writeString(sharedFile, string);
   }
 
   @Test
-  public void testReadStockFile() {
+  public void testReadStockFile() throws IOException {
     StockFileReader stockFileReader = new StockFileReader();
     assertEquals(6, stockFileReader.readFile(sharedFile).size());
   }
diff --git a/src/test/java/millions/model/ExchangeListenerTest.java b/src/test/java/millions/model/ExchangeListenerTest.java
index 935ab43..569dad4 100644
--- a/src/test/java/millions/model/ExchangeListenerTest.java
+++ b/src/test/java/millions/model/ExchangeListenerTest.java
@@ -7,6 +7,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -29,16 +30,22 @@ public void onTransactionCompleted(Transaction transaction) {
 }
 
 class ExchangeListenerTest {
-
+  static List<BigDecimal> dummyVolatilityParams;
   private Exchange exchange;
   private Player player;
   private TestExchangeListener listener;
-
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @BeforeEach
   void setUp() {
-    Stock s1 = new Stock("AAPL", "Apple Inc.", BigDecimal.valueOf(100));
-    Stock s2 = new Stock("GOOG", "Alphabet Inc.", BigDecimal.valueOf(200));
-    Stock s3 = new Stock("NVDA", "NVidia Inc.", BigDecimal.valueOf(200));
+    Stock s1 = new Stock("AAPL", "Apple Inc.", BigDecimal.valueOf(100),dummyVolatilityParams);
+    Stock s2 = new Stock("GOOG", "Alphabet Inc.", BigDecimal.valueOf(200),dummyVolatilityParams);
+    Stock s3 = new Stock("NVDA", "NVidia Inc.", BigDecimal.valueOf(200),dummyVolatilityParams);
     exchange = new Exchange("NASDAQ", List.of(s1, s2, s3));
     player = new Player("TestPlayer", BigDecimal.valueOf(10000));
 
diff --git a/src/test/java/millions/model/ExchangeTest.java b/src/test/java/millions/model/ExchangeTest.java
index 2e689a6..336b63b 100644
--- a/src/test/java/millions/model/ExchangeTest.java
+++ b/src/test/java/millions/model/ExchangeTest.java
@@ -3,17 +3,28 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.math.BigDecimal;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.IntStream;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
 class ExchangeTest {
+  static List<BigDecimal> dummyVolatilityParams;
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @Test
   public void testGetters() {
-    Stock s1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300));
-    Stock s2 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00));
-    Stock s3 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02));
+
+    Stock s1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams);
+    Stock s2 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00), dummyVolatilityParams);
+    Stock s3 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02), dummyVolatilityParams);
 
     Exchange exchange = new Exchange("exchange", List.of(s1, s2));
 
@@ -31,9 +42,9 @@ public void testGetters() {
 
   @Test
   public void happyPath() {
-    Stock s1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300));
-    Stock s2 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00));
-    Stock s3 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02));
+    Stock s1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams);
+    Stock s2 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00), dummyVolatilityParams);
+    Stock s3 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02), dummyVolatilityParams);
 
     Exchange exchange = new Exchange("exchange", List.of(s1, s2, s3));
     Player player = new Player("name", BigDecimal.valueOf(1000));
@@ -56,7 +67,7 @@ public void happyPath() {
 
   @Test
   public void testNullsAndInvalid() {
-    Stock s1 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02));
+    Stock s1 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02), dummyVolatilityParams);
 
     Exchange exchange = new Exchange("exchange", List.of(s1));
     Player player = new Player("name", BigDecimal.valueOf(1000));
@@ -69,11 +80,11 @@ public void testNullsAndInvalid() {
 
     assertThrows(
         IllegalArgumentException.class,
-        () -> new Exchange("", List.of(new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300)))));
+        () -> new Exchange("", List.of(new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams))));
 
     assertThrows(
         IllegalArgumentException.class,
-        () -> new Exchange(null, List.of(new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300)))));
+        () -> new Exchange(null, List.of(new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams))));
 
     assertThrows(IllegalArgumentException.class, () -> exchange.buy("DOGL", player, 2));
 
@@ -85,9 +96,9 @@ public void testNullsAndInvalid() {
 
   @Test
   public void testGetGainers() {
-    Stock s1 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02));
-    Stock s2 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300));
-    Stock s3 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00));
+    Stock s1 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02), dummyVolatilityParams);
+    Stock s2 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams);
+    Stock s3 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00), dummyVolatilityParams);
 
     Exchange exchange = new Exchange("exchange", List.of(s1, s2, s3));
     exchange.advance();
@@ -109,9 +120,9 @@ public void testGetGainers() {
 
   @Test
   public void testGetLosers() {
-    Stock s1 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02));
-    Stock s2 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300));
-    Stock s3 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00));
+    Stock s1 = new Stock("MSFT", "EpsteinSoft Inc.", BigDecimal.valueOf(0.02), dummyVolatilityParams);
+    Stock s2 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams);
+    Stock s3 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00), dummyVolatilityParams);
 
     Exchange exchange = new Exchange("exchange", List.of(s1, s2, s3));
 
diff --git a/src/test/java/millions/model/PlayerListenerTest.java b/src/test/java/millions/model/PlayerListenerTest.java
index 71c94d6..274bd7c 100644
--- a/src/test/java/millions/model/PlayerListenerTest.java
+++ b/src/test/java/millions/model/PlayerListenerTest.java
@@ -6,6 +6,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -35,10 +36,16 @@ public void onStatusChanged(String newStatus) {
 }
 
 class PlayerListenerTest {
-
+  static List<BigDecimal> dummyVolatilityParams;
   private Player player;
   private TestPlayerListener listener;
-
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @BeforeEach
   void setUp() {
     player = new Player("TestPlayer", BigDecimal.valueOf(10000));
@@ -62,7 +69,8 @@ void withdrawMoneyNotifiesListener() {
 
   @Test
   void addShareNotifiesPortfolioAndStatus() {
-    Stock stock = new Stock("AAPL", "Apple Inc.", BigDecimal.valueOf(100));
+
+    Stock stock = new Stock("AAPL", "Apple Inc.", BigDecimal.valueOf(100), dummyVolatilityParams);
     Share share = new Share(stock, BigDecimal.valueOf(1), BigDecimal.valueOf(100));
 
     player.addShareToPortfolio(share);
@@ -72,7 +80,7 @@ void addShareNotifiesPortfolioAndStatus() {
 
   @Test
   void removeShareNotifiesPortfolioAndStatus() {
-    Stock stock = new Stock("AAPL", "Apple Inc.", BigDecimal.valueOf(100));
+    Stock stock = new Stock("AAPL", "Apple Inc.", BigDecimal.valueOf(100), dummyVolatilityParams);
     Share share = new Share(stock, BigDecimal.valueOf(1), BigDecimal.valueOf(100));
 
     player.addShareToPortfolio(share);
diff --git a/src/test/java/millions/model/PortfolioTest.java b/src/test/java/millions/model/PortfolioTest.java
index a208066..9219d58 100644
--- a/src/test/java/millions/model/PortfolioTest.java
+++ b/src/test/java/millions/model/PortfolioTest.java
@@ -3,15 +3,25 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
 class PortfolioTest {
-
+  static List<BigDecimal> dummyVolatilityParams;
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @Test
   public void happyPath() {
     Portfolio portfolio = new Portfolio();
-    Stock stock = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300));
+    Stock stock = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams);
     Share share = new Share(stock, 10, BigDecimal.valueOf(300));
 
     assertTrue(portfolio.addShare(share));
@@ -27,8 +37,8 @@ public void happyPath() {
   @Test
   public void testGettersAndSetters() {
     Portfolio portfolio = new Portfolio();
-    Stock stock1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300));
-    Stock stock2 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00));
+    Stock stock1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams);
+    Stock stock2 = new Stock("DOGL", "DOOGLE Inc.", BigDecimal.valueOf(200.00), dummyVolatilityParams);
     Share share1 = new Share(stock1, 10, BigDecimal.valueOf(300));
     Share share2 = new Share(stock2, 5, BigDecimal.valueOf(200));
 
@@ -56,7 +66,7 @@ public void testGettersAndSetters() {
   @Test
   public void testGetNetWorth() {
     Portfolio portfolio = new Portfolio();
-    Stock stock = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(100));
+    Stock stock = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(100), dummyVolatilityParams);
     Share share = new Share(stock, 1, BigDecimal.valueOf(50));
 
     portfolio.addShare(share);
@@ -66,7 +76,7 @@ public void testGetNetWorth() {
 
   @Test
   public void testNullsAndInvalid() {
-    Stock stock1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300));
+    Stock stock1 = new Stock("PEAR", "Pear Inc.", BigDecimal.valueOf(300), dummyVolatilityParams);
     Share share1 = new Share(stock1, 10, BigDecimal.valueOf(300));
     Portfolio portfolio = new Portfolio();
     assertFalse(portfolio.removeShare(null));
diff --git a/src/test/java/millions/model/PurchaseTest.java b/src/test/java/millions/model/PurchaseTest.java
index 3c76e85..1c3e4ba 100644
--- a/src/test/java/millions/model/PurchaseTest.java
+++ b/src/test/java/millions/model/PurchaseTest.java
@@ -3,13 +3,25 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 class PurchaseTest {
+  static List<BigDecimal> dummyVolatilityParams;
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @Test
   public void testHappyPath() {
-    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10));
+    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10), dummyVolatilityParams);
     Share share = new Share(stock, 2, BigDecimal.valueOf(10));
     Player player = new Player("TestPlayer", BigDecimal.valueOf(100));
     Purchase purchase = new Purchase(share, 1);
@@ -24,7 +36,7 @@ public void testHappyPath() {
   @Test
   public void testNullsAndInvalid() {
 
-    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10));
+    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10), dummyVolatilityParams);
     Share share = new Share(stock, 2, BigDecimal.valueOf(10));
     Player player = new Player("TestPlayer", BigDecimal.valueOf(100));
     Purchase purchase = new Purchase(share, 1);
diff --git a/src/test/java/millions/model/SaleTest.java b/src/test/java/millions/model/SaleTest.java
index 4a8a4d1..17fcebd 100644
--- a/src/test/java/millions/model/SaleTest.java
+++ b/src/test/java/millions/model/SaleTest.java
@@ -3,14 +3,24 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
 class SaleTest {
-
+  static List<BigDecimal> dummyVolatilityParams;
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @Test
   public void testHappyPath() {
-    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10));
+    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10), dummyVolatilityParams);
     Share share = new Share(stock, 2, BigDecimal.valueOf(10));
     Player player = new Player("TestPlayer", BigDecimal.valueOf(100));
     player.getPortfolio().addShare(share);
@@ -24,7 +34,7 @@ public void testHappyPath() {
 
   @Test
   public void testNullsAndInvalid() {
-    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10));
+    Stock stock = new Stock("TestStock", "TST", BigDecimal.valueOf(10), dummyVolatilityParams);
     Share share = new Share(stock, 2, BigDecimal.valueOf(10));
     Player player = new Player("TestPlayer", BigDecimal.valueOf(100));
     Sale sale = new Sale(share, 1);
diff --git a/src/test/java/millions/model/ShareTest.java b/src/test/java/millions/model/ShareTest.java
index 3f82181..b27c832 100644
--- a/src/test/java/millions/model/ShareTest.java
+++ b/src/test/java/millions/model/ShareTest.java
@@ -3,21 +3,31 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
 class ShareTest {
-
+  static List<BigDecimal> dummyVolatilityParams;
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @Test
   public void testHappyPath() {
-    Stock stock = new Stock("AYO", "Ayhoo", BigDecimal.valueOf(10));
+    Stock stock = new Stock("AYO", "Ayhoo", BigDecimal.valueOf(10), dummyVolatilityParams);
     Share share = new Share(stock, 5, BigDecimal.valueOf(10));
     assertEquals(BigDecimal.valueOf(5), share.getQuantity());
   }
 
   @Test
   public void testGetters() {
-    Stock stock = new Stock("AYO", "Ayhoo", BigDecimal.valueOf(10));
+    Stock stock = new Stock("AYO", "Ayhoo", BigDecimal.valueOf(10), dummyVolatilityParams);
     Share share = new Share(stock, 5, BigDecimal.valueOf(10));
     assertEquals(BigDecimal.valueOf(5), share.getQuantity());
     assertEquals(stock, share.getStock());
@@ -26,7 +36,7 @@ public void testGetters() {
 
   @Test
   public void testNullsAndInvalid() {
-    Stock stock = new Stock("AYO", "Ayhoo", BigDecimal.valueOf(10));
+    Stock stock = new Stock("AYO", "Ayhoo", BigDecimal.valueOf(10), dummyVolatilityParams);
     assertThrows(IllegalArgumentException.class, () -> new Share(null, 2, BigDecimal.valueOf(2)));
     assertThrows(IllegalArgumentException.class, () -> new Share(stock, 2, null));
     assertThrows(
diff --git a/src/test/java/millions/model/StockTest.java b/src/test/java/millions/model/StockTest.java
index c28a6bd..bd85c31 100644
--- a/src/test/java/millions/model/StockTest.java
+++ b/src/test/java/millions/model/StockTest.java
@@ -7,22 +7,31 @@
 import java.util.Arrays;
 import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
 
 class StockTest {
+  static List<BigDecimal> dummyVolatilityParams;
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @Test
   public void testHapyPath() {
-    Stock stock = new Stock("NVDA", "Nvadia", BigDecimal.valueOf(20));
+    Stock stock = new Stock("NVDA", "Nvadia", BigDecimal.valueOf(20), dummyVolatilityParams);
     Stock stock2 =
         new Stock(
-            "NVDA", "Nvadia", new ArrayList<BigDecimal>(Arrays.asList(BigDecimal.valueOf(20))));
+            "NVDA", "Nvadia", new ArrayList<BigDecimal>(Arrays.asList(BigDecimal.valueOf(20))),dummyVolatilityParams);
     stock2.addNewSalesPrice(BigDecimal.valueOf(30));
     assertEquals(BigDecimal.valueOf(30), stock2.getSalesPrice());
   }
 
   @Test
   public void settersAndGetters() {
-    Stock stock = new Stock("NVDA", "Nvadia", BigDecimal.valueOf(20));
+    Stock stock = new Stock("NVDA", "Nvadia", BigDecimal.valueOf(20), dummyVolatilityParams);
     assertEquals("NVDA", stock.getSymbol());
     assertEquals("Nvadia", stock.getCompany());
   }
@@ -30,7 +39,7 @@ public void settersAndGetters() {
   @Test
   public void testGetPriceChange() {
     ArrayList prices = new ArrayList<>(List.of(BigDecimal.valueOf(100), BigDecimal.valueOf(125)));
-    Stock stock = new Stock("AAPL", "Apple", prices);
+    Stock stock = new Stock("AAPL", "Apple", prices, dummyVolatilityParams);
     assertEquals(BigDecimal.valueOf(25), stock.getLatestPriceChange());
     stock.addNewSalesPrice(BigDecimal.valueOf(155));
     assertEquals(BigDecimal.valueOf(30), stock.getLatestPriceChange());
@@ -40,12 +49,12 @@ public void testGetPriceChange() {
   public void testNullsAndInvalid() {
 
     assertThrows(
-        IllegalArgumentException.class, () -> new Stock(null, "Nvadia", BigDecimal.valueOf(20)));
+        IllegalArgumentException.class, () -> new Stock(null, "Nvadia", BigDecimal.valueOf(20), dummyVolatilityParams));
     assertThrows(
-        IllegalArgumentException.class, () -> new Stock("NVDA", null, BigDecimal.valueOf(20)));
+        IllegalArgumentException.class, () -> new Stock("NVDA", null, BigDecimal.valueOf(20), dummyVolatilityParams));
     assertThrows(
-        IllegalArgumentException.class, () -> new Stock("NVDA", "", BigDecimal.valueOf(20)));
+        IllegalArgumentException.class, () -> new Stock("NVDA", "", BigDecimal.valueOf(20), dummyVolatilityParams));
     assertThrows(
-        IllegalArgumentException.class, () -> new Stock("", "Nvadia", BigDecimal.valueOf(20)));
+        IllegalArgumentException.class, () -> new Stock("", "Nvadia", BigDecimal.valueOf(20), dummyVolatilityParams));
   }
 }
diff --git a/src/test/java/millions/model/TransactionArchiveTest.java b/src/test/java/millions/model/TransactionArchiveTest.java
index 426ed5b..de4e9cd 100644
--- a/src/test/java/millions/model/TransactionArchiveTest.java
+++ b/src/test/java/millions/model/TransactionArchiveTest.java
@@ -3,21 +3,29 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.math.BigDecimal;
+import java.util.ArrayList;
 import java.util.List;
 
+import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
 class TransactionArchiveTest {
-
+  static List<BigDecimal> dummyVolatilityParams;
   TransactionArchive archive;
   Purchase purchase;
   Sale sale;
-
+  @BeforeAll
+  static void setUpVolatilityParams() {
+    dummyVolatilityParams = new ArrayList<>();
+    for (int i = 0; i < 6; i++) {
+      dummyVolatilityParams.add(BigDecimal.valueOf(1));
+    }
+  }
   @BeforeEach
   public void setUp() {
     archive = new TransactionArchive();
-    Stock stock = new Stock("SUS", "Samsung", BigDecimal.valueOf(10));
+    Stock stock = new Stock("SUS", "Samsung", BigDecimal.valueOf(10), dummyVolatilityParams);
     Share share = new Share(stock, 2, BigDecimal.valueOf(10));
     purchase = new Purchase(share, 1);
     sale = new Sale(share, 2);