Stock market today: Dow slides as S&P 500, Nasdaq bounce back from losses after Russia-Ukraine tensions rattle markets

Walmart's impressive earnings report and guidance increase suggest strong momentum going into the holiday season, positioning it well to capitalize on consumer spending. The stock is likely to continue performing positively as it captures market share from competitors offering an online shopping experience.

Lowe's negative same-store sales growth, despite beating earnings, raises concerns about its ongoing business momentum. Investors might be cautious about committing to the stock given the negative sales outlook. This could result in downward pressure on the stock price in the near term.

Nvidia's upcoming earnings and market expectations create a volatile environment. If Nvidia meets or exceeds expectations but provides cautious guidance regarding future demand, it may not sustain the current high valuation, potentially leading to a decline.

Super Micro Computer's recent compliance filing helps regain some investor confidence, leading to an initial surge in stock price. However, with ongoing investigations and previous issues, long-term confidence may remain shaken, but near-term sentiment could be bullish, though risk remains.