More than three-quarters of S&P 500 companies have reported third-quarter earnings, but some traders say that there could still be some big surprises.
With Volkswagen bogged down in its rigged emission test scandal, Toyota has reclaimed the mantle of world's largest automaker, Sanchez said.
"You're really starting to see Toyota picking up the slack there, and I do think there's potential for an upside surprise out of Toyota," she said Tuesday on CNBC's "Trading Nation."
Read More VW says fuel usage understated on some models; Porsche warns
On the other side, Erin Gibbs of S&P Investment Advisory has one name that she warns could be a disappointment for investors this earnings season.
Gibbs said Whole Foods Market is still struggling to come back from a mislabeling scandal in which the company overcharged for misstated weight on food products.
Whole Foods, which is set to report after the bell Wednesday, also has a history of missing on earnings, Gibbs said Tuesday.
Read More Whole Foods owns up overcharging of packaged goods
"They've missed the last three out of four for earnings estimates, and they've missed the last seven out of eight for revenue estimates," she said. "So based on their track record alone, I'm saying that they're going to be one of the ones that might miss."
In a Wednesday report, Jonathan Golub of RBC Capital Markets noted that stock prices have been seeing more extreme moves on third-quarter earnings.
"Investors have rightly noted that companies missing expectations are being punished more harshly than normal this earnings season. However, the converse is also true. Companies that are positively surprising are also being rewarded more generously," Golub wrote.