S&P 500 Movers | Winners: APP, MGM, UAL | Losers: BSX, QCOM, SWKS
On Wednesday, May 27, index performance was mixed — the S&P 500 remaining flat, the Dow 30 rising 0.36%, and the Nasdaq 100 falling 0.09% 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 | APP | AppLovin | 10.4% | -15.7% |
| 2 | MGM | MGM Resorts International | 9.1% | 15.0% |
| 3 | UAL | United Airlines | 6.3% | 0.7% |
| 4 | NCLH | Norwegian Cruise Line | 6.1% | -18.7% |
| 5 | GM | General Motors | 5.4% | 3.7% |
| 6 | APTV | Aptiv | 5.3% | -18.6% |
| 7 | EL | Estee Lauder Companies | 5.3% | -12.6% |
| 8 | CDW | CDW | 5.2% | -15.2% |
| 9 | CRL | Charles River Laboratories International | 5.0% | -17.5% |
| 10 | MOS | Mosaic | 4.9% | 0.3% |
List of S&P 500 Losers
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- Strong Q1 Says Marvell Is Becoming Broadcom’s Most Credible Rival
- Costco’s Premium Valuation Makes More Sense Than You Think
- AMD Stock: A Guidance Raise The Market Is Still Rewarding
- AVGO Stock: The Math Hidden In Its Price
- What Could Push MSFT Stock Higher From Here?
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 | BSX | Boston Scientific | -12.5% | -47.1% |
| 2 | QCOM | Qualcomm | -6.2% | 37.3% |
| 3 | SWKS | Skyworks Solutions | -5.7% | 26.7% |
| 4 | BKR | Baker Hughes | -5.3% | 39.8% |
| 5 | ROL | Rollins | -5.2% | -15.5% |
| 6 | PODD | Insulet | -5.1% | -48.6% |
| 7 | FTNT | Fortinet | -4.5% | 61.1% |
| 8 | RJF | Raymond James Financial | -4.4% | -8.8% |
| 9 | EBAY | eBay | -4.3% | 27.1% |
| 10 | CEG | Constellation Energy | -4.3% | -18.0% |
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 Boston Scientific (BSX) and eBay (EBAY) attractive.
Individual stocks swing, but a balanced asset allocation doesn’t. Trefis’ Boston-based wealth management partner blends strategy and discipline to smooth out market noise.
Movers – Last One Week
Analysing over the last one week (5 trading days), markets rallied broadly, with the S&P 500 rising 2.27%, the Dow 30 rising 2.59%, and the Nasdaq 100 rising 4.01%. While many stocks participated in the rally, some lagged behind.
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 | MU | Micron Technology | 32.9% | 225.4% |
| 2 | DELL | Dell Technologies | 29.8% | 143.6% |
| 3 | UAL | United Airlines | 26.4% | 0.7% |
| 4 | SMCI | Super Micro Computer | 25.0% | 30.5% |
| 5 | FSLR | First Solar | 23.4% | 4.8% |
| 6 | NCLH | Norwegian Cruise Line | 22.7% | -18.7% |
| 7 | F | Ford Motor | 21.6% | 23.9% |
| 8 | HPQ | HP | 21.6% | 16.3% |
| 9 | DECK | Deckers Outdoor | 21.3% | 10.3% |
| 10 | DAL | Delta Air Lines | 20.7% | 18.5% |
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 | INTU | Intuit | -23.0% | -53.3% |
| 2 | WMT | Walmart | -11.7% | 6.8% |
| 3 | BSX | Boston Scientific | -11.2% | -47.1% |
| 4 | DVN | Devon Energy | -10.9% | 21.5% |
| 5 | APA | APA | -10.5% | 52.1% |
| 6 | SATS | EchoStar | -10.3% | 12.7% |
| 7 | COIN | Coinbase Global | -10.2% | -23.2% |
| 8 | AZO | AutoZone | -9.6% | -10.7% |
| 9 | HAS | Hasbro | -9.5% | 8.0% |
| 10 | XOM | Exxon Mobil | -9.0% | 24.6% |
Movers – Last One Month
On a slightly wider timeline over the last one month, all major indices rose in unison — the S&P 500 rising 4.83%, the Dow 30 rising 3.00%, and the Nasdaq 100 rising 9.77%. The strength was widespread, though a few names underperformed.
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 | MU | Micron Technology | 77.0% | 225.4% |
| 2 | DDOG | Datadog | 67.2% | 63.1% |
| 3 | QCOM | Qualcomm | 55.3% | 37.3% |
| 4 | AKAM | Akamai Technologies | 50.6% | 65.5% |
| 5 | FTNT | Fortinet | 49.3% | 61.1% |
| 6 | SNDK | SanDisk | 48.6% | 569.8% |
| 7 | AMD | Advanced Micro Devices | 48.1% | 131.4% |
| 8 | STX | Seagate Technology | 46.1% | 216.7% |
| 9 | INTC | Intel | 43.3% | 230.0% |
| 10 | CRWD | CrowdStrike | 42.0% | 37.7% |
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 | ZTS | Zoetis | -32.6% | -36.3% |
| 2 | PODD | Insulet | -22.5% | -48.6% |
| 3 | PNR | Pentair | -21.5% | -30.0% |
| 4 | INTU | Intuit | -21.1% | -53.3% |
| 5 | TRMB | Trimble | -18.3% | -30.0% |
| 6 | POOL | Pool | -17.5% | -18.3% |
| 7 | BSX | Boston Scientific | -15.8% | -47.1% |
| 8 | CHTR | Charter Communications | -15.7% | -29.5% |
| 9 | REGN | Regeneron Pharmaceuticals | -15.6% | -18.5% |
| 10 | IR | Ingersoll Rand | -15.5% | -10.4% |
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.