diff --git a/src/coex/strategy_team.rs b/src/coex/strategy_team.rs
index 1c25cb9..b113741 100644
--- a/src/coex/strategy_team.rs
+++ b/src/coex/strategy_team.rs
@@ -1005,17 +1005,16 @@ pub async fn execute_strategist_for_test_temp(
         &alldata.valid_symbol_vec,
     )
     .await?;
-    let mut bb10_30m_data: Vec<(String, Vec<BollingerBandData>)> = Vec::new();
-    let mut bb10_30m_vec: Vec<BollingerBandData> = Vec::new();
-    value_estimation_team::indicators::bollingerband::bollingerband(
+   
+    let mut bb10_30m_data: Vec<(String, Vec<BollingerBandData>)> = value_estimation_team::indicators::bollingerband::bollingerband(
         10,
         3.0,
         &sma_30m_data,
         &alldata.rt_price_1m_vec,
-        &mut bb10_30m_data,
         &alldata.valid_symbol_vec,
     )
     .await?;
+let mut bb10_30m_vec: Vec<BollingerBandData> = Vec::new();
     let mut filtered_4th_symbols: Vec<(String, i64)> = Vec::new(); // (symbol, closetime)
     for element in filtered_3rd_symbols {
         let bb10_30m_option = bb10_30m_data.iter().position(|x| *x.0 == element.0);
diff --git a/src/value_estimation_team/indicators/bollingerband.rs b/src/value_estimation_team/indicators/bollingerband.rs
index edd98d8..24ab92b 100644
--- a/src/value_estimation_team/indicators/bollingerband.rs
+++ b/src/value_estimation_team/indicators/bollingerband.rs
@@ -34,9 +34,8 @@ pub async fn bollingerband(
     sd_factor: f64,
     input_sma_data: &Vec<(String, Vec<SmaData>)>,
     rt_input_data: &Vec<(String, Vec<RealtimePriceData>)>,
-    output_bb_data: &mut Vec<(String, Vec<BollingerBandData>)>,
     valid_usdt_trades: &Vec<String>,
-) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+) -> Result<Vec<(String, Vec<BollingerBandData>)>, Box<dyn std::error::Error + Send + Sync>> {
     let instant = Instant::now();
 
     let mut read_rt_data_vec: Vec<(String, Vec<RealtimePriceData>)> = rt_input_data.clone();
@@ -133,7 +132,7 @@ pub async fn bollingerband(
             None => {}
         }
     }
-    *output_bb_data = bb_data_wrapper;
+    ;
     // println!("                                              indicators/bb{} 완료 elapsed:{:.2}s", ma_number, instant.elapsed().as_secs_f32());
-    Ok(())
+    Ok(bb_data_wrapper)
 }