Monday's pre-market session: top gainers and losers in the S&P500 index

By Mill Chart - Last update: Aug 4, 2025

As we await the opening of the US market on Monday, let's delve into the pre-market session and discover the S&P500 top gainers and losers shaping the early market sentiment.


premarket

Pre-market gainers

TickerChangeComment
IDXX13.9%IDEXX LABORATORIES INC's (NASDAQ:IDXX) shares surged 13.9% to reach $610.0 during the pre-market session on Monday. The company's earnings where released Yesterday. A press release (IDEXX Laboratories Announces Second Quarter Results) was released earlier today.
PPG5.0%The pre-market session on Monday saw a significant rise in PPG INDUSTRIES INC's (NYSE:PPG) shares, climbing 5.0% to $109.66.
APH4.09%Pre-market trading on Monday showed positive momentum for AMPHENOL CORP-CL A (NYSE:APH), as the stock price advanced 4.09% to reach $108.58. Earlier today the company had a press release: Amphenol Corporation to Acquire Connectivity and Cable Solutions Business From CommScope.
TSN4.02%Exciting news for TYSON FOODS INC-CL A (NYSE:TSN) as their shares soared 4.02% to $54.64 during the pre-market session on Monday. yesterday the company released their earnings.
ETN3.31%EATON CORP PLC's (NYSE:ETN) shares surged 3.31% to reach $393.91 during the pre-market session on Monday. EATON CORP PLC is releasing earnings today. In the last 3 months the stock gained 27.22%.
SMCI2.58%During Monday's pre-market trading, SUPER MICRO COMPUTER INC (NASDAQ:SMCI) demonstrated strong momentum, with the stock price rising 2.58% to $58.1. Today SMCI is releasing earnings. In the last 3 months the stock gained 68.02%.
AMD2.4%ADVANCED MICRO DEVICES (NASDAQ:AMD) rose 2.4% to $175.82 during Monday's pre-market session. The company is releasing earnings today. Shareholders saw the stock price going 24.5% higher in the past month.
WAT2.3%WATERS CORP's (NYSE:WAT) shares rose 2.3% to $297.0 during Monday's pre-market session. WATERS CORP released earnings Yesterday. Shareholders saw the stock price going 30.13% lower is the past 6 months.
TSLA2.27%TESLA INC (NASDAQ:TSLA) recorded a 2.27% increase in share price during the pre-market session, reaching $309.49 on Monday. In the last 6 months the stock lost 25.2%.
ALGN2.18%ALIGN TECHNOLOGY INC's (NASDAQ:ALGN) stock price increased by 2.18% to $139.5. The stock is trading 30.64% lower than a month ago.

To see the full list of premarket gainers you can use our premarket gainers page.

PPG INDUSTRIES INC

NYSE:PPG (3/5/2026, 8:15:43 PM)

After market: 111.87 0 (0%)

111.87

-5.83 (-4.95%)


TYSON FOODS INC-CL A

NYSE:TSN (3/5/2026, 8:24:22 PM)

After market: 62.92 +0.86 (+1.39%)

62.06

-0.86 (-1.37%)


IDEXX LABORATORIES INC

NASDAQ:IDXX (3/5/2026, 8:00:02 PM)

After market: 618.92 0 (0%)

618.92

-29.78 (-4.59%)


ALIGN TECHNOLOGY INC

NASDAQ:ALGN (3/5/2026, 8:00:01 PM)

After market: 182.16 +6.56 (+3.74%)

175.6

-6.56 (-3.6%)


EATON CORP PLC

NYSE:ETN (3/5/2026, 8:04:00 PM)

Premarket: 354.79 0 (0%)

354.79

+0.33 (+0.09%)


AMPHENOL CORP-CL A

NYSE:APH (3/5/2026, 8:04:00 PM)

After market: 138.61 +2.37 (+1.74%)

136.24

+3.49 (+2.63%)


SUPER MICRO COMPUTER INC

NASDAQ:SMCI (3/5/2026, 10:23:27 PM)

Premarket: 32.19 -0.05 (-0.16%)

32.24

-0.41 (-1.26%)


WATERS CORP

NYSE:WAT (3/5/2026, 8:26:26 PM)

After market: 318 +2.41 (+0.76%)

315.59

-3.45 (-1.08%)


ADVANCED MICRO DEVICES

NASDAQ:AMD (3/5/2026, 8:00:01 PM)

Premarket: 198.96 -0.49 (-0.25%)

199.45

-2.62 (-1.3%)


TESLA INC

NASDAQ:TSLA (3/5/2026, 8:24:20 PM)

Premarket: 404.9 -0.65 (-0.16%)

405.55

-0.39 (-0.1%)



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