This document discusses a multipath dynamic source routing protocol that uses portfolio selection to allocate traffic across multiple paths in a jamming-aware manner. It proposes using portfolio selection theory, originally developed for financial investments, to make routing decisions robust to jamming. The source node considers jamming statistics and portfolio selection to efficiently allocate traffic across paths, improving throughput and reducing congestion or jamming possibilities. A simulation showed the proposed mechanism was effective at improving network performance. It also reviews related work on jamming-aware routing and distributed data storage systems.