Wondering what's happening in today's S&P500 pre-market session?
By Mill Chart
Last update: Oct 20, 2025
Get insights into the top gainers and losers in the S&P500 index of Monday's pre-market session.
Gainers
| Ticker | Change | Comment |
|---|---|---|
| COO | 6.43% | COOPER COS INC/THE (NASDAQ:COO) experienced an impressive 6.43% increase in share price, reaching $76.6 during the pre-market session on Monday. Shareholders saw the stock price going 33.52% lower is the past year. |
| HOLX | 5.41% | Exciting news for HOLOGIC INC (NASDAQ:HOLX) as their shares soared 5.41% to $73.63 during the pre-market session on Monday. Shareholders saw the stock price going 21.35% higher is the past 6 months. |
| MU | 4.3% | During Monday's pre-market session, MICRON TECHNOLOGY INC (NASDAQ:MU) experienced a 4.3% increase, with the stock price reaching $211.09. Shareholders saw the stock price going 24.37% higher in the past month. |
| SMCI | 3.97% | The pre-market session on Monday saw a significant rise in SUPER MICRO COMPUTER INC's (NASDAQ:SMCI) shares, climbing 3.97% to $54.25. The stock is trading 65.62% higher than 6 months ago. |
| HOOD | 3.07% | Investors witnessed a remarkable surge in ROBINHOOD MARKETS INC - A (NASDAQ:HOOD) during Monday's pre-market session, with the stock price rising 3.07% to $133.9. In the last 6 months the stock gained 215.0%. |
| STLD | 2.76% | STEEL DYNAMICS INC (NASDAQ:STLD) recorded a 2.76% increase in share price during the pre-market session, reaching $146.69 on Monday. The company's earnings where released Yesterday. In the last 6 months the stock gained 20.68%. |
| COIN | 2.63% | COINBASE GLOBAL INC -CLASS A (NASDAQ:COIN) experienced an impressive 2.63% increase in share price, reaching $344.85 during the pre-market session on Monday. The stock is trading 91.98% higher than 6 months ago. |
| IFF | 2.41% | INTL FLAVORS & FRAGRANCES's (NYSE:IFF) shares surged 2.41% to reach $65.29 during the pre-market session on Monday. The stock is trading 39.0% lower than a year ago. |
| STX | 2.24% | During Monday's pre-market trading, SEAGATE TECHNOLOGY HOLDINGS (NASDAQ:STX) demonstrated strong momentum, with the stock price rising 2.24% to $230.46. Shareholders saw the stock price going 51.2% higher in the past 3 months. |
| WDC | 2.23% | WESTERN DIGITAL CORP's (NASDAQ:WDC) shares surged 2.23% to reach $129.01 during the pre-market session on Monday. Shareholders saw the stock price going 85.59% higher in the past 3 months. |
Our premarket gainers page will show you the full list.
165.22
-2.89 (-1.72%)
67.18
+0.69 (+1.04%)
74.97
+0.11 (+0.15%)
81.4
+4.37 (+5.67%)
278.79
+13.16 (+4.95%)
168.89
+7.89 (+4.9%)
34.69
+0.46 (+1.34%)
237.22
+10.57 (+4.66%)
269.73
-4.32 (-1.58%)
131.95
-5.13 (-3.74%)
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STLD Latest News and Analysis
19 days ago - By: Chartmill
