S&P 500 Movers | Winners: CBOE, PSKY, SNDK | Losers: CLX, SYK, AMGN
On Friday, May 1, index performance was mixed — the S&P 500 rising 0.29%, the Dow 30 falling 0.31%, and the Nasdaq 100 rising 0.94% offered no clear consensus. Stock-specific factors shaped outcomes throughout the market.

List of S&P 500 Winners
The following table shows the list of 10 stocks that generated the highest returns on the last trading day:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | CBOE | Cboe Global Markets | 9.0% | 30.6% |
| 2 | PSKY | Paramount Skydance | 8.3% | -16.8% |
| 3 | SNDK | SanDisk | 8.3% | 400.0% |
| 4 | STX | Seagate Technology | 7.9% | 164.4% |
| 5 | ORCL | Oracle | 6.5% | -11.3% |
| 6 | DDOG | Datadog | 6.3% | 3.3% |
| 7 | INTC | Intel | 5.4% | 170.0% |
| 8 | AIG | American International | 5.3% | -7.4% |
| 9 | LITE | Lumentum | 5.3% | 157.7% |
| 10 | FSLR | First Solar | 4.9% | -19.0% |
List of S&P 500 Losers
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- Cash Machine Trading Cheap – Progress Software Stock Set to Run?
On the other hand, the following table shows the list of 10 stocks that generated the lowest returns:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | CLX | Clorox | -9.7% | -11.5% |
| 2 | SYK | Stryker | -6.5% | -15.9% |
| 3 | AMGN | Amgen | -4.7% | 1.5% |
| 4 | BLDR | Builders FirstSource | -4.3% | -26.4% |
| 5 | BRO | Brown & Brown | -4.2% | -27.5% |
| 6 | RMD | ResMed | -4.1% | -14.7% |
| 7 | BMY | Bristol-Myers Squibb | -3.9% | 10.3% |
| 8 | GLW | Corning | -3.6% | 81.1% |
| 9 | TSCO | Tractor Supply | -3.6% | -32.1% |
| 10 | GRMN | Garmin | -3.5% | 20.0% |
Why does this matter? Significant stock moves – up or down – deserve your attention. Sharp declines in fundamentally strong names can offer smart buying opportunities. And when momentum aligns with solid fundamentals, riding the trend can be highly rewarding. Among these stocks, we find First Solar (FSLR) and Amgen (AMGN) attractive.
No matter where SPX stock goes, your portfolio should stay on track. See how the Trefis High Quality Portfolio can help you do that.
Movers – Last One Week
Analysing over the last one week (5 trading days), a market-wide surge lifted the S&P 500 rising 0.91%, the Dow 30 rising 0.55%, and the Nasdaq 100 rising 1.49%. Gains were broad-based, though not every stock joined the rally.
List of 1-Week S&P 500 Winners
The following table shows the list of 10 stocks that generated the highest returns over the last week:
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | CNC | Centene | 27.5% | 29.6% |
| 2 | STX | Seagate Technology | 24.0% | 164.4% |
| 3 | NXPI | NXP Semiconductors | 21.0% | 36.7% |
| 4 | INTC | Intel | 20.7% | 170.0% |
| 5 | SNDK | SanDisk | 19.9% | 400.0% |
| 6 | QCOM | Qualcomm | 18.9% | 4.1% |
| 7 | PWR | Quanta Services | 18.8% | 75.9% |
| 8 | GNRC | Generac | 17.4% | 90.2% |
| 9 | GOOGL | Alphabet | 12.0% | 23.3% |
| 10 | GOOG | Alphabet | 11.9% | 22.2% |
List of 1-Week S&P 500 Losers
Similarly, the following table shows the 10 stocks that were at the bottom in terms of returns:
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | TER | Teradyne | -17.4% | 78.5% |
| 2 | BLDR | Builders FirstSource | -15.9% | -26.4% |
| 3 | PNR | Pentair | -13.8% | -23.6% |
| 4 | HOOD | Robinhood Markets | -13.0% | -34.9% |
| 5 | ARE | Alexandria Real Estate Equities | -12.7% | -14.1% |
| 6 | BRO | Brown & Brown | -12.5% | -27.5% |
| 7 | CLX | Clorox | -11.7% | -11.5% |
| 8 | GEHC | GE HealthCare Technologies | -11.3% | -25.5% |
| 9 | WTW | Willis Towers Watson | -10.9% | -21.7% |
| 10 | KLAC | KLA | -10.8% | 42.3% |
Movers – Last One Month
On a slightly wider timeline over the last one month, markets rallied broadly, with the S&P 500 rising 9.96%, the Dow 30 rising 6.30%, and the Nasdaq 100 rising 15.36%. While many stocks participated in the rally, some lagged behind.
List of 1-Month S&P 500 Winners
The following table shows the 10 stocks that generated the maximum returns over the last one month:
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | INTC | Intel | 107.4% | 170.0% |
| 2 | STX | Seagate Technology | 71.8% | 164.4% |
| 3 | AMD | Advanced Micro Devices | 71.5% | 68.4% |
| 4 | SNDK | SanDisk | 71.4% | 400.0% |
| 5 | ON | ON Semiconductor | 65.6% | 90.3% |
| 6 | CNC | Centene | 57.1% | 29.6% |
| 7 | NXPI | NXP Semiconductors | 51.0% | 36.7% |
| 8 | MU | Micron Technology | 47.4% | 90.1% |
| 9 | WDC | Western Digital | 44.9% | 150.6% |
| 10 | MCHP | Microchip Technology | 43.7% | 48.3% |
List of 1-Month S&P 500 Losers
In the same period, these 10 stocks were at the bottom in terms of returns:
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | TSCO | Tractor Supply | -24.0% | -32.1% |
| 2 | CHTR | Charter Communications | -20.6% | -17.7% |
| 3 | NOC | Northrop Grumman | -18.5% | -0.0% |
| 4 | LMT | Lockheed Martin | -17.0% | 6.6% |
| 5 | EPAM | EPAM Systems | -16.9% | -45.2% |
| 6 | LULU | Lululemon Athletica | -15.9% | -35.7% |
| 7 | PODD | Insulet | -15.5% | -38.4% |
| 8 | CLX | Clorox | -15.4% | -11.5% |
| 9 | GEHC | GE HealthCare Technologies | -15.2% | -25.5% |
| 10 | CTSH | Cognizant Technology Solutions | -14.4% | -36.5% |
Picking winners on a consistent basis is not an easy task – especially given the volatility associated with a single stock. Instead, the Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.