Palantir Surges 3.06% to $14.78 on $19.86 Billion Volume Boost, Ranks 8th in U.S. Trading Activity

On September 19, 2025, , . The surge followed renewed investor focus on its AI-driven analytics platforms and government contract pipeline, as analysts highlighted improved technical indicators and short-term momentum.

Recent developments underscored Palantir’s strategic positioning in defense and intelligence sectors, with several institutional investors reiterating confidence in its long-term value proposition. While macroeconomic uncertainties persist, the stock’s performance suggested a divergence from broader market trends, driven by sector-specific optimism and operational progress.

To set up this back-test precisely, I need to pin down a few practical details: —Do you want the U.S. stock market (NYSE + NASDAQ + AMEX) or another region? Should we impose any listing filters (e.g., minimum price, primary listings only)? Trade execution assumptions—Buy at today’s close and sell at tomorrow’s close (typical for daily-rebalanced studies), or buy next day’s open and sell same-day close? Equal-weight all 500 names each day? Frictions—Ignore transaction costs and slippage (most common for a first pass), or apply a specific commission / bid-ask assumption? Once these are clarified, I’ll automatically pull each day’s volume ranking, generate the daily “top-500” portfolio, and feed the trade signals into the back-test engine.