This week, which stocks lagged or dragged? Weekly Winners column keeps up with market trends, helping Tigers sort out the week's hottest sectors, stock winners and important news.

Below are the top 10 S&P 500 stock gainers for the week ended May 1:

Alphabet Revenue Tops Expectations on Record Quarter for Cloud Unit

Alphabet topped Wall Street estimates for quarterly revenue on Wednesday, as enterprise spending on artificial intelligence delivered the best quarter of reported growth for its cloud unit yet.

Shares of the ​company were up 10% on Thursday.

Centene Raises 2026 Profit Forecast on Improving Cost Controls

Centene on Tuesday raised its annual ​forecast for adjusted profit and revenue after a quarterly results beat, as the ‌health insurer expects to have better control over medical costs, sending its shares up 14% in Tuesday trading.

The forecast raise follows similar moves from larger peers UnitedHealth and Elevance, adding to investors' relief ​after more than two years of the industry's struggle with higher medical costs that ​pressured margins at health insurers.

SanDisk Joins Western Digital, Seagate in Signaling Strong AI Storage Demand

SanDisk forecast quarterly revenue above estimates on Thursday, joining peers Western Digital and Seagate in signaling that enterprise spending on data storage ​products used in artificial intelligence data centers remains strong.

SanDisk shares, ‌which have risen about 350% this year, up over 8% on Friday, following a sharp AI-driven rally in storage stocks earlier this week sparked by Seagate’s strong ​forecast. Western Digital, whose shares have more than doubled this year, is ​also down nearly 1% even as it forecast quarterly revenue ⁠above estimates.

Intel Is Up Another 12% on Wednesday. Why the Struggling Foundry Business Is Lifting Shares.

To say Intel stock is on a tear is a wild understatement. Shares are up again on Wednesday, and potential improvement in the money-losing foundry business is helping.

Intel stock rose 12.1% to $94.75, while the S&P 500 fell slightly and the Dow Jones Industrial Average dropped 0.6%.

Shares traded as high as $94.95, a new all-time and 52-week high. Intel stock is now up about 157% year to date and up more than 365% over the past 12 months.

A few things have sent shares soaring. The stock started from a low point with investors unsure whether the new CEO, Lip-Bu Tan, could turn things around. He is doing well, helping investor sentiment.

Sales growth has accelerated, and profit margins are improving, which has helped too. Earnings per share estimates for 2027 are at about $1.50, up about 50% over the past few months.