diff --git a/package-lock.json b/package-lock.json
index 26e988f..82eccec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.20.69",
+  "version": "0.20.70",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@orionprotocol/sdk",
-      "version": "0.20.69",
+      "version": "0.20.70",
       "hasInstallScript": true,
       "license": "ISC",
       "dependencies": {
diff --git a/package.json b/package.json
index 3b5722a..af701f3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.20.69",
+  "version": "0.20.70",
   "description": "Orion Protocol SDK",
   "main": "./lib/index.cjs",
   "module": "./lib/index.js",
diff --git a/src/services/Indexer/index.ts b/src/services/Indexer/index.ts
index 3a4bb1e..597871e 100644
--- a/src/services/Indexer/index.ts
+++ b/src/services/Indexer/index.ts
@@ -119,10 +119,10 @@ class IndexerService {
   };
 
   readonly getAmountAt = (amount: number, timestamp?: number): BigNumber => {
-    const currentTime = Date.now() / 1000;
+    const finalTimestamp = timestamp !== undefined ? timestamp / 1000 : Date.now() / 1000;
 
     // sqrt
-    return BigNumber(amount).dividedBy(this.getK(timestamp ?? currentTime));
+    return BigNumber(amount).dividedBy(this.getK(finalTimestamp));
   };
 
   /**