S&P 500 Movers | Winners: DAY, FSLR, TTD | Losers: EQT, INTC, CTRA

SPY: S&P 500 logo
SPY
S&P 500

On Monday, August 18, little changed in the S&P 500 remaining flat, the Dow 30 falling 0.08%, and the Nasdaq 100 remaining flat today. Beneath the surface, however, some stocks still showed notable swings.
 
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 DAY Dayforce 26.0% -8.3%
2 FSLR First Solar 9.7% 24.4%
3 TTD Trade Desk 5.4% -53.2%
4 AXON Axon Enterprise 5.0% 33.2%
5 EPAM EPAM Systems 4.4% -29.6%
6 RCL Royal Caribbean 4.1% 42.6%
7 PAYC Paycom Software 3.7% 10.3%
8 MPWR Monolithic Power Systems 2.9% 44.4%
9 NOW ServiceNow 2.9% -15.9%
10 STX Seagate Technology 2.8% 86.4%

 
List of S&P 500 Losers

On the other hand, the following table shows the list of 10 stocks that generated the lowest returns:
 

Relevant Articles
  1. Stocks, Bonds, Gold, Crypto: Market Update 12/18/2025
  2. Is CAVA Stock’s Recent Rally Sustainable?
  3. Why Isn’t Chevron Stock Moving in 2025?
  4. What’s Next With Affirm Stock?
  5. What’s Behind Tilray’s 3.5X Surge?
  6. This Strategy Pays You 8.7% While Lining Up MPWR at Bargain Prices

# Ticker Company Name 1-D
Returns
YTD
Returns
1 EQT EQT -4.4% 10.5%
2 INTC Intel -3.7% 18.0%
3 CTRA Coterra Energy -3.3% -6.6%
4 EA Electronic Arts -3.2% 15.9%
5 AMCR Amcor -2.9% -7.5%
6 BAX Baxter International -2.4% -18.2%
7 INCY Incyte -2.3% 22.9%
8 META Meta Platforms -2.3% 31.3%
9 UPS United Parcel Service -2.2% -27.9%
10 EXE Expand Energy -2.2% -4.1%

 
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. In above, we find First Solar (FSLR) and Royal Caribbean (RCL) Attractive.

Movers – Last One Week

Analysing over the last one week (5 trading days), markets rallied broadly, with the S&P 500 rising 1.19%, the Dow 30 rising 2.13%, and the Nasdaq 100 rising 0.80%. 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 DAY Dayforce 33.5% -8.3%
2 UNH UnitedHealth 22.2% -38.3%
3 FSLR First Solar 20.4% 24.4%
4 CNC Centene 14.8% -52.1%
5 UAL United Airlines 14.6% 5.4%
6 INTC Intel 14.6% 18.0%
7 DAL Delta Air Lines 14.2% 1.9%
8 APTV Aptiv 13.4% 25.2%
9 NXPI NXP Semiconductors 13.1% 12.7%
10 DOW Dow 11.4% -39.5%

 
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 AMCR Amcor -12.0% -7.5%
2 AMAT Applied Materials -11.3% 1.1%
3 TPR Tapestry -7.5% 54.3%
4 KR Kroger -5.7% 15.7%
5 WM Waste Management -5.4% 11.9%
6 CME CME -5.4% 17.6%
7 CSCO Cisco Systems -5.3% 14.6%
8 CAH Cardinal Health -5.0% 28.0%
9 PLTR Palantir Technologies -4.7% 130.1%
10 CSGP CoStar -4.7% 23.1%

 
Movers – Last One Month

On a slightly wider timeline over the last one month, markets rallied broadly, with the S&P 500 rising 2.42%, the Dow 30 rising 1.28%, and the Nasdaq 100 rising 2.81%. 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 HUM Humana 30.3% 14.0%
2 GNRC Generac 29.4% 27.8%
3 EBAY eBay 26.7% 61.2%
4 CHRW C.H. Robinson Worldwide 26.1% 20.6%
5 DHI D.R. Horton 25.6% 19.2%
6 INCY Incyte 25.1% 22.9%
7 FSLR First Solar 24.7% 24.4%
8 IDXX IDEXX Laboratories 24.0% 54.3%
9 ANET Arista Networks 23.5% 24.9%
10 GLW Corning 21.3% 39.5%

 
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 IT Gartner -32.8% -50.7%
2 TTD Trade Desk -31.5% -53.2%
3 CHTR Charter Communications -30.2% -22.2%
4 ALGN Align Technology -24.0% -30.5%
5 COIN Coinbase Global -23.6% 29.2%
6 FTNT Fortinet -23.4% -14.5%
7 CMG Chipotle Mexican Grill -19.6% -28.1%
8 DOW Dow -18.0% -39.5%
9 FI Fiserv -17.3% -33.3%
10 ON ON Semiconductor -16.8% -19.9%

 

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.