diff --git a/.env.complete b/.env.complete
index 4aea194..b970009 100644
--- a/.env.complete
+++ b/.env.complete
@@ -121,6 +121,7 @@ LOKI_USERNAME=
 LOKI_PASSWORD=
 LOKI_TENANT_ID=
 LOKI_PUSH_TIMEOUT=10000
+LOKI_FLUSH_INTERVAL_MS=5000
 LOKI_BATCH_SIZE=1024
 LOKI_BATCH_WAIT=1000
 LOKI_RETENTION_PERIOD=30d
diff --git a/.env.prod b/.env.prod
index 2aa8d1d..255aaa8 100644
--- a/.env.prod
+++ b/.env.prod
@@ -116,6 +116,7 @@ LOKI_USERNAME=${LOKI_USERNAME}
 LOKI_PASSWORD=${LOKI_PASSWORD}
 LOKI_TENANT_ID=${LOKI_TENANT_ID}
 LOKI_PUSH_TIMEOUT=30000
+LOKI_FLUSH_INTERVAL_MS=5000
 LOKI_BATCH_SIZE=2048
 LOKI_BATCH_WAIT=5000
 LOKI_RETENTION_PERIOD=90d
diff --git a/libs/config/src/loki.ts b/libs/config/src/loki.ts
index 121e1d4..1c8e54e 100644
--- a/libs/config/src/loki.ts
+++ b/libs/config/src/loki.ts
@@ -35,6 +35,8 @@ export const lokiConfig = cleanEnv(process.env, {
   LOKI_DEFAULT_LABELS: str({ default: '', desc: 'Default labels for all log entries (JSON format)' }),
   LOKI_SERVICE_LABEL: str({ default: 'stock-bot', desc: 'Service label for log entries' }),
   LOKI_ENVIRONMENT_LABEL: str({ default: 'development', desc: 'Environment label for log entries' }),
+
+  LOKI_FLUSH_INTERVAL_MS: num({ default: 5000, desc: 'Flush interval ms' }),
 });
 
 // Export typed configuration object
@@ -58,4 +60,5 @@ export const {
   LOKI_DEFAULT_LABELS,
   LOKI_SERVICE_LABEL,
   LOKI_ENVIRONMENT_LABEL,
+  LOKI_FLUSH_INTERVAL_MS,
 } = lokiConfig;
diff --git a/libs/utils/src/index.ts b/libs/utils/src/index.ts
index 36daa7f..100b993 100644
--- a/libs/utils/src/index.ts
+++ b/libs/utils/src/index.ts
@@ -1,3 +1,3 @@
 export * from './dateUtils';
 export * from './logger';
-export * from './lokiClient.ts';
+export * from './calculations/index';
\ No newline at end of file
diff --git a/libs/utils/src/lokiClient.ts b/libs/utils/src/lokiClient.ts
deleted file mode 100644
index 231ca3b..0000000
--- a/libs/utils/src/lokiClient.ts
+++ /dev/null
@@ -1,86 +0,0 @@
-/**
- * Loki client for sending logs to Grafana Loki
- */
-import { LoggingConfig } from '@stock-bot/config';
-
-export class LokiClient {
-  private batchQueue: any[] = [];
-  private flushInterval: NodeJS.Timeout;
-  private lokiUrl: string;
-  private authHeader?: string;
-
-  constructor(private config: LoggingConfig) {
-    const { host, port, username, password } = config.loki;
-    
-    this.lokiUrl = `http://${host}:${port}/loki/api/v1/push`;
-    
-    if (username && password) {
-      const authString = Buffer.from(`${username}:${password}`).toString('base64');
-      this.authHeader = `Basic ${authString}`;
-    }
-    
-    this.flushInterval = setInterval(
-      () => this.flush(),
-      config.loki.flushIntervalMs
-    );
-  }
-
-  async log(level: string, message: string, serviceName: string, labels: Record<string, string> = {}) {
-    const timestamp = Date.now() * 1000000; // Loki expects nanoseconds
-    
-    this.batchQueue.push({
-      streams: [{
-        stream: {
-          level,
-          service: serviceName,
-          ...this.config.loki.labels,
-          ...labels,
-        },
-        values: [[`${timestamp}`, message]],
-      }],
-    });
-
-    if (this.batchQueue.length >= this.config.loki.batchSize) {
-      await this.flush();
-    }
-  }
-
-  private async flush() {
-    if (this.batchQueue.length === 0) return;
-
-    try {
-      const headers: Record<string, string> = {
-        'Content-Type': 'application/json',
-      };
-      
-      if (this.authHeader) {
-        headers['Authorization'] = this.authHeader;
-      }
-
-      const response = await fetch(this.lokiUrl, {
-        method: 'POST',
-        headers,
-        body: JSON.stringify({
-          streams: this.batchQueue.flatMap(batch => batch.streams),
-        }),
-      });
-
-      if (!response.ok) {
-        console.error(`Failed to send logs to Loki: ${response.status} ${response.statusText}`);
-        const text = await response.text();
-        if (text) {
-          console.error(text);
-        }
-      }
-    } catch (error) {
-      console.error('Error sending logs to Loki:', error);
-    } finally {
-      this.batchQueue = [];
-    }
-  }
-
-  async destroy() {
-    clearInterval(this.flushInterval);
-    return this.flush();
-  }
-}