Major U.S. indices ended lower on Tuesday, with the Dow Jones Industrial Average falling 0.26% to 51,349.92, the S&P 500 declining 0.17% to 7,670.84, and the Nasdaq slipping 0.09% to 26,797.54.

These are the top stocks that gained the attention of retail traders and investors through the day:

Fair Isaac Corporation (NYSE:FICO)

Fair Isaac Corporation’s stock plummeted 26.52% to close at $617.87. It hit an intraday high of $685 and a low of $595.19, marking a new 52-week low. In after-hours trading, the stock fell 1.07% to $611.27.

The stock’s decline follows the announcement by FHFA Director Bill Pulte that Fannie Mae and Freddie Mac are simplifying mortgage pricing, integrating VantageScore alongside FICO Classic. This move threatens FICO’s dominance in mortgage credit scoring, leading to significant investor concern.

Iovance Biotherapeutics, Inc. (NASDAQ:IOVA)

Iovance Biotherapeutics surged 31.48%, closing at $14.45, with a high of $15.30 and a low of $12.78. The stock reached a new 52-week high, driven by the company’s increased revenue guidance for 2026.

Iovance Biotherapeutics raised its full-year 2026 revenue guidance to $410 million-$420 million, up $55 million at the midpoint from its previous outlook, citing strong U.S. demand for Amtagvi and Proleukin. The company said increasing patient demand and manufacturing efficiencies were providing greater visibility into second-half revenue and supporting progress toward profitability.

Stablecoin Development Corporation (NYSE:SDEV)

Stablecoin Development Corporation’s stock skyrocketed 108.28% to $3.27, reaching an intraday high of $3.93 and a low of $1.62. The shares dropped 20.8% to $2.59 in extended trading.

Stablecoin Development shares surged on unusually heavy volume, with more than 161 million shares traded versus a 100-day average of 1.62 million, extending a rally of more than 200% over the past month. The company, formerly NovaBay Pharmaceuticals, had pivoted to digital-asset infrastructure in April and recently simplified its capital structure by withdrawing its Series A-F preferred stock designations while adding David Garcia Rios to its board as the Sky Frontier Foundation’s nominee.

Carnival Corporation Ltd (NYSE:CCL)

Carnival Corporation’s shares rose 13.41%, closing at $25.11, with a high of $25.29 and a low of $24. In the past 52 weeks, the stock moved between $34.03 and $21.45.

Carnival reported third-quarter revenue of $8.44 billion, up 3.5% year over year and above the $8.30 billion analyst estimate, while adjusted EPS of $1.43 beat expectations of $1.36. The company raised fiscal 2026 adjusted EPS guidance to about $2.24 from $2.22, while record bookings and customer deposits of $7.6 billion pointed to continued demand strength, with 2027 booked occupancy and pricing at record levels.

Micron Technology, Inc. (NASDAQ:MU)

Micron Technology saw a modest gain of 1.05%, closing at $1065.08. The stock reached an intraday high of $1082.66 and a low of $1057.70. The stock moved between $163.96 and $1,255 in the past 52 weeks.

Micron headed into its fiscal fourth-quarter earnings report with analysts expecting tight memory supply, higher pricing and AI-driven demand to support revenue and margins, with consensus calling for $50.75 billion in revenue and $31.45 in EPS. JPMorgan, Bank of America and BMO pointed to sustained DRAM and HBM shortages through 2027-28, with estimates for continued mid-80% gross margins and potentially significant earnings growth as AI infrastructure demand outpaced memory supply. The report will be released on Wednesday after market closes.

Benzinga Edge Stock Rankings indicate Micron stock has a Momentum score in the 99th percentile and a Value score in the 20th percentile

Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.

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