diff --git a/dabo/functions/get_marketdata.sh b/dabo/functions/get_marketdata.sh
index 1568560..8535e06 100644
--- a/dabo/functions/get_marketdata.sh
+++ b/dabo/functions/get_marketdata.sh
@@ -130,7 +130,7 @@ function get_marketdata {
   # on first download  
   if ! [ -s "${f_histfile}" ]
   then
-    cat "${f_histfile}.tmp" | sort -k1,1 -t, -u >"${f_histfile}"
+    grep ^[2-9] "${f_histfile}.tmp" | sort -k1,1 -t, -u >"${f_histfile}"
   else
     # merge data
     egrep -h ^[0-9][0-9][0-9][0-9]-[0-9][0-9] "${f_histfile}" "${f_histfile}.tmp" | sort -k1,1 -t, -u >"${g_tmp}/${FUNCNAME}.tmp"