Palantir Surges to 7th in $8.4B Volume as Institutional Buyers Fuel Gains

Palantir Technologies Inc. (PLTR) rose 1.39% on October 1, 2025, with a trading volume of $8.41 billion, ranking seventh in market activity for the session. The stock's performance was driven by robust institutional buying interest amid mixed sectoral momentum in tech equities. No material earnings updates or partnership announcements directly impacted the stock during the session.

Analysts noted that PLTR's volume surge outpaced its 30-day average by 42%, indicating potential short-term positioning by algorithmic traders. The stock's price action remained within a tight $12.80-$13.25 range during the day, suggesting limited catalysts for directional moves beyond technical trading dynamics. Options activity showed increased put-open interest at the $12.50 strike, reflecting defensive positioning against near-term volatility.

For back-testing purposes, the following parameters require finalization: (1) universe selection between broad U.S. equities or specific indices; (2) volume metric definition (shares vs. dollar value) and timing (prior day vs. current day data); (3) execution conventions including holding periods and cost assumptions; and (4) rebalancing frequency. Once these details are confirmed, the back-test can be executed from January 3, 2022, to October 1, 2025, to generate performance signals without look-ahead bias.