Bighead's Algorithm Notes

Nov 24, 2025 · Industry Insights

STRAPSim: A Component‑Level Portfolio Similarity Metric for ETF Alignment and Trade Execution

The paper introduces STRAPSim, a semantic, two‑stage, residual‑aware similarity measure that captures component‑level semantics and weight distribution for ETFs, and demonstrates through extensive toy and corporate‑bond ETF experiments that it consistently outperforms Jaccard, weighted Jaccard and BERTScore variants in classification, regression, recommendation and Spearman correlation tasks.