15 家市值低於 50 億美元的公司值得關注 $SERV Serve $KRKNF Kraken $LUNR Intuitive $RDW Redwire $OSS One Stop $AEHR Aehr $SMR NuScale $WULF TeraWulf $CIFR Cipher $USAR USA Rare Earth $UAMY US Antimony $CRML Critical Metals $ZETA Zeta $PGY Pagaya $IBRX ImmunityBio