S&P 500 Movers | Winners: FDS, IT, INTU | Losers: APP, SNDK, MRVL
A down day for the indexes saw some familiar names under pressure, raising questions about which moves matter most.
Some of the day’s sharpest losses are not new. Oracle (ORCL) and ON Semiconductor (ON) appear on both the one-day and one-month losers lists, a sign of persistent pressure. This happened against a backdrop of broad market declines, with the S&P 500 returning -0.8% and the Nasdaq-100 returning -1.9%.
The central question for any investor looking at today’s tape is how to separate a one-day reaction from a developing trend. The day’s biggest winners and losers below are the starting point.

Monday’s S&P 500 Winners
The 10 stocks with the highest returns on the last trading day:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | FDS | FactSet Research Systems | 6.5% | -8.4% |
| 2 | IT | Gartner | 6.1% | -44.0% |
| 3 | INTU | Intuit | 5.4% | -55.8% |
| 4 | VLO | Valero Energy | 5.4% | 83.7% |
| 5 | PSX | Phillips 66 | 5.3% | 56.1% |
| 6 | BIIB | Biogen | 5.0% | 18.8% |
| 7 | CRM | Salesforce | 4.8% | -35.0% |
| 8 | CASY | Casey’s General Stores | 4.8% | 55.7% |
| 9 | MPC | Marathon Petroleum | 4.6% | 84.2% |
| 10 | DOW | Dow | 4.6% | 32.8% |
Monday’s S&P 500 Losers
And the 10 stocks with the lowest returns:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | APP | AppLovin | -12.6% | -34.3% |
| 2 | SNDK | SanDisk | -12.6% | 605.2% |
| 3 | MRVL | Marvell Technology | -7.8% | 156.4% |
| 4 | ORCL | Oracle | -6.5% | -31.9% |
| 5 | INTC | Intel | -6.1% | 179.5% |
| 6 | LRCX | Lam Research | -5.8% | 93.1% |
| 7 | ON | ON Semiconductor | -5.8% | 66.9% |
| 8 | STX | Seagate Technology | -5.5% | 213.3% |
| 9 | COHR | Coherent | -5.3% | 66.5% |
| 10 | RL | Ralph Lauren | -5.2% | 6.5% |
Is today’s weakness a new story or an old one?
For at least two names on the daily losers list, the weakness has been building for weeks. Oracle’s one-month return is -34.4%. For ON Semiconductor, the one-month return is -18.0%. The presence of these companies on multiple lists shows that a single day’s trading can be part of a much larger, sustained move. It highlights that not all volatility is created equal.
Movers Over The Last Week
Widening the window to five trading days, these are the strongest and weakest S&P 500 names:
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | CBOE | Cboe Global Markets | 13.1% | 10.9% |
| 2 | OXY | Occidental Petroleum | 12.3% | 34.5% |
| 3 | PSX | Phillips 66 | 11.8% | 56.1% |
| 4 | DOW | Dow | 11.1% | 32.8% |
| 5 | AKAM | Akamai Technologies | 11.0% | 43.4% |
| 6 | MPC | Marathon Petroleum | 10.4% | 84.2% |
| 7 | FANG | Diamondback Energy | 10.3% | 28.9% |
| 8 | LYB | LyondellBasell Industries | 10.1% | 37.7% |
| 9 | HPQ | HP | 9.6% | 14.4% |
| 10 | HPE | Hewlett Packard Enterprise | 9.5% | 98.5% |
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | APP | AppLovin | -18.6% | -34.3% |
| 2 | MRNA | Moderna | -18.1% | 127.2% |
| 3 | INTC | Intel | -15.6% | 179.5% |
| 4 | MRVL | Marvell Technology | -12.7% | 156.4% |
| 5 | AXON | Axon Enterprise | -12.1% | -3.7% |
| 6 | GNRC | Generac | -12.0% | 66.4% |
| 7 | BLDR | Builders FirstSource | -10.7% | -28.6% |
| 8 | TER | Teradyne | -10.1% | 76.4% |
| 9 | GEV | GE Vernova | -9.5% | 59.8% |
Movers Over The Last Month
And over the last 21 trading days:
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | MRNA | Moderna | 45.7% | 127.2% |
| 2 | TECH | Bio-Techne | 35.9% | 21.7% |
| 3 | HOOD | Robinhood Markets | 27.2% | -2.9% |
| 4 | DASH | DoorDash | 25.5% | -16.3% |
| 5 | GPC | Genuine Parts | 25.5% | 2.5% |
| 6 | PANW | Palo Alto Networks | 25.5% | 79.3% |
| 7 | GPN | Global Payments | 23.5% | -0.0% |
| 8 | CRL | Charles River Laboratories International | 23.3% | 15.2% |
| 9 | ZBRA | Zebra Technologies | 23.0% | 9.8% |
| 10 | AXON | Axon Enterprise | 22.2% | -3.7% |
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | ORCL | Oracle | -34.4% | -31.9% |
| 2 | ECHO | EchoStar | -19.4% | -14.5% |
| 3 | ON | ON Semiconductor | -18.0% | 66.9% |
| 4 | FOXA | Fox | -17.8% | -23.1% |
| 5 | ACN | Accenture | -17.8% | -47.0% |
| 6 | FOX | Fox | -17.7% | -22.2% |
| 7 | SWKS | Skyworks Solutions | -17.1% | -6.2% |
| 8 | CSGP | CoStar | -16.0% | -57.2% |
| 9 | FDXF | FedEx Freight | -15.4% | |
| 10 | CTSH | Cognizant Technology Solutions | -14.8% | -46.1% |
What is the right way to read a movers list?
A large daily move is an alert, not an instruction. It flags where the market’s attention and capital are flowing, for better or worse. A stock returning +6.5% like FactSet Research Systems (FDS) or one returning -12.6% like AppLovin (APP) deserves a closer look, but the list itself provides no verdict. The disciplined follow-up is always to check the business fundamentals behind the numbers. The weekly and monthly tables above can help identify which moves have staying power and which are just noise.
The next step is never to trade the list; it is to test it. Our Guidance Momentum screen shows which risers have management raising guidance behind them, and our Buy the Dip screen shows which of the fallers still generate the growth and cash that make a recovery plausible.
Today’s Winner Is Tomorrow’s Loser Often Enough
The movers list is the most honest picture of single-stock risk the market prints each day: the same volatility that makes the winners column also fills the losers column, and no one reliably knows which side a stock lands on next.
That is the case for owning a disciplined basket instead of chasing the tape. The Trefis High Quality (HQ) Portfolio holds roughly 30 businesses selected for consistent cash generation, strong margins, and resilient balance sheets, sized and rebalanced with rules. It has a track record of outpacing a benchmark that combines all major indices – the S&P 500, S&P Mid-cap, and Russell 2000. Watch the movers for information; let the portfolio do the compounding.