Rivian Shares Surge 0.89 as Trading Volume Plunges 40.25 to 184th Rank Amid Supply Chain Bottlenecks

Rivian Automotive (RIVN) rose 0.89% on October 3, 2025, with a trading volume of $610 million, marking a 40.25% decline from the previous day’s activity and ranking 184th in market turnover. The stock’s muted volume contrasted with recent volatility, as investors digested mixed signals from its production and supply chain updates.

Recent reports highlighted delays in Rivian’s battery production due to supplier bottlenecks, raising concerns about its ability to meet Q4 delivery targets. Analysts noted that while the automaker’s electric truck demand remains robust, logistical challenges could pressure margins. Additionally, Rivian’s partnership with Amazon for logistics fleet expansion was reaffirmed, offering a partial offset to near-term risks.

To run this back-test precisely we need to pin down a few practical details: Universe—U.S. listed equities only (NYSE + NASDAQ + AMEX)? Volume definition—Rank by dollar turnover (Price × Shares Traded) or by share count? Portfolio construction—Equal-weight all 500 names each day, re-balanced daily. Trading assumptions—Slippage/transaction cost assumptions, or ignore them? Proposed defaults: U.S. common stocks, dollar turnover, equal-weight daily, no filters, 1-day hold, no costs. Confirmation is required to proceed.