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What's going on in today's pre-market session: S&P500 movers

By Mill Chart

Last update: Oct 13, 2025

The US market is yet to commence its session on Monday, but let's get a preview of the pre-market session and explore the top S&P500 gainers and losers driving the early market movements.


premarket

Gainers

TickerChangeComment
WDC5.52%The pre-market session on Monday saw a significant rise in WESTERN DIGITAL CORP's (NASDAQ:WDC) shares, climbing 5.52% to $121.79. Shareholders saw the stock price going 74.51% higher in the past 3 months.
STX4.95%During Monday's pre-market trading, SEAGATE TECHNOLOGY HOLDINGS (NASDAQ:STX) demonstrated strong momentum, with the stock price rising 4.95% to $225.0. The stock is trading 45.66% higher than 3 months ago.
KLAC4.71%Pre-market trading on Monday showed positive momentum for KLA CORP (NASDAQ:KLAC), as the stock price advanced 4.71% to reach $1.03K. In the last 6 months the share price increased with 46.63%.
MU4.65%During Monday's pre-market session, MICRON TECHNOLOGY INC (NASDAQ:MU) experienced a 4.65% increase, with the stock price reaching $190.05. In the last 3 months the stock gained 45.83%.
EL4.61%ESTEE LAUDER COMPANIES-CL A's (NYSE:EL) shares rose 4.61% to $91.69. The stock is trading 58.7% higher than 6 months ago.
TER4.48%TERADYNE INC's (NASDAQ:TER) stock price increased by 4.48% to $138.0. The stock is trading 36.09% higher than 3 months ago.
AMAT4.31%APPLIED MATERIALS INC's (NASDAQ:AMAT) stock price increased by 4.31% to $219.0. In the last month the stock gained 25.12%.
MPWR4.24%During Monday's pre-market trading, MONOLITHIC POWER SYSTEMS INC (NASDAQ:MPWR) demonstrated strong momentum, with the stock price rising 4.24% to $942.75. In the last 3 months the share price increased with 22.88%.
LRCX4.19%LAM RESEARCH CORP (NASDAQ:LRCX) recorded a 4.19% increase in share price during the pre-market session, reaching $136.87 on Monday. Shareholders saw the stock price going 29.14% higher in the past 3 months.
ON3.98%Pre-market trading on Monday showed positive momentum for ON SEMICONDUCTOR (NASDAQ:ON), as the stock price advanced 3.98% to reach $47.56. Shareholders saw the stock price going 23.42% lower in the past 3 months.

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

ESTEE LAUDER COMPANIES-CL A

NYSE:EL (1/9/2026, 8:04:00 PM)

After market: 114.166 +0.44 (+0.38%)

113.73

+3.46 (+3.14%)


SEAGATE TECHNOLOGY HOLDINGS

NASDAQ:STX (1/9/2026, 8:28:36 PM)

Premarket: 295.12 -8.89 (-2.92%)

304.01

+19.54 (+6.87%)


WESTERN DIGITAL CORP

NASDAQ:WDC (1/9/2026, 8:00:02 PM)

Premarket: 195.95 -4.51 (-2.25%)

200.46

+12.78 (+6.81%)


MONOLITHIC POWER SYSTEMS INC

NASDAQ:MPWR (1/9/2026, 8:07:42 PM)

After market: 958.97 0 (0%)

958.97

-0.12 (-0.01%)


APPLIED MATERIALS INC

NASDAQ:AMAT (1/9/2026, 8:00:00 PM)

Premarket: 301.28 +0.1 (+0.03%)

301.18

+19.54 (+6.94%)


KLA CORP

NASDAQ:KLAC (1/9/2026, 8:00:02 PM)

Premarket: 1380 -20 (-1.43%)

1400

+75.4 (+5.69%)


LAM RESEARCH CORP

NASDAQ:LRCX (1/9/2026, 8:00:07 PM)

Premarket: 214.98 -3.38 (-1.55%)

218.36

+17.4 (+8.66%)


TERADYNE INC

NASDAQ:TER (1/9/2026, 8:00:01 PM)

Premarket: 213.3 -3.96 (-1.82%)

217.26

+0.95 (+0.44%)


MICRON TECHNOLOGY INC

NASDAQ:MU (1/9/2026, 8:08:21 PM)

Premarket: 339.8 -5.29 (-1.53%)

345.09

+18.07 (+5.53%)


ON SEMICONDUCTOR

NASDAQ:ON (1/9/2026, 8:15:00 PM)

Premarket: 61.51 -0.65 (-1.05%)

62.16

+1.27 (+2.09%)



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