eBay Shares Dip 0.43% as Quiet Day Sees $560M Turnover Rank 216th in U.S. Volume

On October 6, 2025, eBay (EBAY) closed with a 0.43% decline, trading on a volume of $0.56 billion—a 20.33% drop from the previous day’s activity. The stock ranked 216th in trading volume among U.S. equities. Market observers noted muted investor interest amid broader market consolidation.

Analysts highlighted limited catalysts for the stock, with no major earnings reports, regulatory updates, or strategic announcements influencing sentiment. The decline in volume suggested reduced speculative activity, though no fundamental shifts in eBay’s business model or market positioning were reported during the period.

For back-test parameters, the following considerations remain pending clarification: 1. **Stock universe**: Confirmation is needed on whether to include all U.S.-listed common stocks or restrict to indices like the S&P 500 or Nasdaq-100. 2. **Portfolio construction**: Preferences must be defined for weighting schemes (equal, volume-based, or market cap) and rebalancing frequency (daily close-to-close, open-to-open, etc.). 3. **Transaction costs**: A decision is required on whether to model frictionless trading or incorporate per-trade costs (e.g., 2 basis points per transaction) for realism.

Once these details are finalized, a daily signal generation and performance analysis from January 3, 2022, to October 6, 2025, can be executed to assess strategy viability.