U.S. Stock Futures Point Lower; Walmart Drops, Alibaba Jumps

1. Stock Futures Dip on Fed Rate Speculation, Tariffs
- U.S. futures decline as investors navigate potential interest rate adjustments and tariff policies.
- S&P 500 futures dip 0.3% after record close.

2. Walmart Plunges on Soft Outlook
- Shares sink 8% premarket on lower-than-expected revenue and earnings forecasts.
- Guidance of $2.50-$2.60 EPS and 3%-4% revenue growth disappoints analysts.

3. Alibaba Surges on Strong Earnings
- U.S.-listed shares jump 10% on better-than-expected Q3 results.
- Adjusted EPS of 2.67 yuan ($0.37) exceeds estimates of CNY2.38.

4. Palantir Slips on Defense Spending Cut Rumors
- Shares fall 4% premarket after report of potential Pentagon budget reductions.
- Palantir derives over 40% of revenue from U.S. government contracts.

5. Carvana Dives Despite Positive Results
- Shares plummet 9% despite beating estimates.
- Per-unit revenue for retail vehicles declines 5% year-over-year to $22,312.
- Company projects "significant growth" in units and adjusted EBITDA by 2025.