S&P 500 earnings, week of May 2: 135 companies to report

Next week, 135 companies in the S&P 500 are expected to report quarterly earnings, including Pfizer Inc. and Moderna Inc., according to S&P Global Market Intelligence data.

Monday, May 2: 18 companies to report

Diamondback Energy Inc. is expected to report $4.68 in quarterly EPS, a 103.3% increase year over year. Analysts expect Clorox Co. to report quarterly earnings of 96 cents per share, a 41.0% decrease from the year-ago period.

Tuesday, May 3: 47 companies to report

Pharmaceutical giant Pfizer is expected to report quarterly EPS of $1.57, a 68.3% increase year over year.

Wednesday, May 4: 36 companies to report

Moderna is expected to report $5.62 in quarterly EPS, nearly double the amount it reported a year earlier, while EPS at Pinnacle West Capital Corp. is expected to decrease by 78.4%.

Thursday, May 5: 31 companies to report

WestRock Co. is expected to report an 87.9% year-over-year increase in quarterly EPS and a 14.4% increase in revenue.

Friday, May 6: 3 companies to report

Clothing brand Under Armour Inc. is expected to report a 32.8% year-over-year decrease in quarterly EPS, but a 6.1% increase in revenue.

Analysts expect eight out of the 11 sectors in the S&P 500 to post year-over-year EPS gains this earnings season.

Notable earnings, week of April 25

Earlier this week, Twitter Inc. reported earnings that smashed expectations and agreed to Elon Musk's $44.00 billion takeover offer.

Microsoft Corp. also surpassed expectations, reporting $2.22 in quarterly EPS, 2 cents higher than the consensus estimate.