Parallel not working

gistfile1.txt

#!/usr/bin/env bash
res1=$(date +%s.%N)


OUTPUT="$(dig "$1")" &
WHOIS="$(whois "$1")" &

wait

echo "<pre>"
echo "$OUTPUT"
echo "</pre>"
echo "<h2>Whois Output for" $1 "</h2>"
echo "<pre>"
echo "$WHOIS"
echo "</pre>"


res2=$(date +%s.%N)
dt=$(echo "$res2 - $res1" | bc)
dd=$(echo "$dt/86400" | bc)
dt2=$(echo "$dt-86400*$dd" | bc)
dh=$(echo "$dt2/3600" | bc)
dt3=$(echo "$dt2-3600*$dh" | bc)
dm=$(echo "$dt3/60" | bc)
ds=$(echo "$dt3-60*$dm" | bc)

printf "Total runtime: %d:%02d:%02d:%02.4f\n" $dd $dh $dm $ds