diff --git a/release_version.txt b/release_version.txt
index a0a1517..eb514eb 100644
--- a/release_version.txt
+++ b/release_version.txt
@@ -1 +1 @@
-0.6.3
\ No newline at end of file
+0.6.4
\ No newline at end of file
diff --git a/scripts/alpaca_hist_md/alpaca_md.sh b/scripts/alpaca_hist_md/alpaca_md.sh
new file mode 100755
index 0000000..429377a
--- /dev/null
+++ b/scripts/alpaca_hist_md/alpaca_md.sh
@@ -0,0 +1,95 @@
+#!/bin/bash
+
+CalendarURL=http://cloud16.cvtt.vpn:8000/api/v1/markets/hours?mic=XNYS
+is_business_day() {
+    dt=${1}
+
+    open_time=$(curl -s "${CalendarURL}&start=${dt}&end=${dt}" | jq '.[] | .open_time')
+    if [ -n  "${open_time}" ]; then
+        return 0
+    else
+        return 1
+    fi
+
+}
+export -f is_business_day
+
+Start=${1}
+End=${2}
+NumJobs=${3}
+
+if [ "${Start}" == "" ] ; then
+    echo "Usage: ${0} <start_date> [<end_date>] [<num_jobs> (25)]]"
+    exit
+fi
+
+if ! is_business_day ${Start}; then
+    echo "${Start} is not business day in US"
+    exit
+fi
+
+if [ "${End}" == "" ] ; then
+    End=$(date -d "${Start} + 1 day" "+%Y-%m-%d")
+fi
+
+if [ "${NumJobs}" == "" ] ; then
+    NumJobs=25
+fi
+
+echo "Start=${Start} End=${End} NumJobs=${NumJobs}"
+
+
+Python=/home/cvtt/.pyenv/python3.10-venv/bin/python3
+PyScript=/home/cvtt/prod/cvttpy/exchanges/alpaca/hist_mkt_data.py
+
+OutputDir=/home/cvtt/alpaca_md
+Config=http://cloud16.cvtt.vpn:6789/apps/minimal_md
+
+
+run_proc() {
+    Inst=${1}
+    Start=${2}
+    End=${3}
+    echo "Running for $Inst"
+
+
+    Cmd="${Python} ${PyScript}"
+    Cmd="${Cmd} --config=${Config}"
+    Cmd="${Cmd} --output_dir=${OutputDir}"
+    Cmd="${Cmd} --instruments=ALPACA:${Inst}"
+    Cmd="${Cmd} --start=${Start}"
+    if [ "${End}" != "" ]; then
+        Cmd="${Cmd} --end=${End}"
+    fi
+    Cmd="${Cmd} --log_file=./logs/${Start}.${Inst}.log"
+    echo ${Cmd}
+    eval ${Cmd}
+}
+
+export PYTHONPATH=/home/cvtt/prod
+export -f run_proc
+
+key=$(jq -r '.["ALPACA_SANDBOX"] | .api_key' ~/.creds)
+secret=$(jq -r '.["ALPACA_SANDBOX"] | .secret_key' ~/.creds)
+
+Cmd="curl -s --request GET --url 'https://paper-api.alpaca.markets/v2/assets?status=active'"
+Cmd="${Cmd} --header 'APCA-API-KEY-ID: ${key}'"
+Cmd="${Cmd} --header 'APCA-API-SECRET-KEY: ${secret}'"
+Cmd="${Cmd} --header 'accept: application/json'"
+Cmd="${Cmd} | jq '.[] | select(.class == \"us_equity\" and .exchange != \"OTC\") | .symbol'"
+Cmd="${Cmd}  | sed 's/\"//g'"
+Cmd="${Cmd} | sed 's/^/STOCK-/'"
+
+# split string into array
+Instruments=()
+for Inst in $(eval ${Cmd})
+do
+    Instruments+=("$Inst")
+done
+
+slice_size=100 # 10K symbols parallel cannot handle
+for ((ii=0; ii <${#Instruments[@]}; ii+=slice_size)); do
+    InstSlice=("${Instruments[@]:ii:slice_size}")
+
+    parallel -j ${NumJobs} run_proc {} ${Start} ${End} ::: "${InstSlice[@]}"
+done