S&P 500 Movers | Winners: APP, MGM, UAL | Losers: BSX, QCOM, SWKS

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SPY
State Street SPDR S&P 500 ETF Trust

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.
 

Trefis: SPX Stock Insights

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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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.