Jane Street has emerged as the largest holder of the iShares Silver Trust ETF (SLV) after acquiring an additional 20.6 million shares in the fourth quarter. This significant purchase was reported on February 26, based on Bloomberg Terminal data cited by ZeroHedge. The acquisition has raised concerns about potential financial engineering and market manipulation, as highlighted by ZeroHedge, amid a surge in silver prices. Jane Street's increased stake in SLV marks a notable development in the ETF market, reflecting heightened interest and activity in silver investments.