
A sharp oil-price reversal lifted airlines and cruise lines on July 27, while Baker Hughes led the S&P 500 after an earnings beat and record orders. Here is what could sustain each move—and what would invalidate it.

Tesla’s 14.5% post-earnings fall split investors into five camps: dip buyers, patient holders, diversifiers, proof-waiters and volatility traders. Here is what each group sees—and what could change their minds.

Energy, utilities and industrials outperformed a falling U.S. market last week. Here is the evidence behind their relative strength and the conditions that could keep—or break—the momentum.

U.S. indexes ended the week lower, but SLB, Digital Realty, Tenet Healthcare and Verizon surged on company-specific earnings catalysts. Here is what must happen for their momentum to continue.