Wondering what's happening in today's S&P500 pre-market session?
By Mill Chart
Last update: Aug 18, 2025
Let's have a look at what is happening on the US markets before the opening bell on Monday. Below you can find the top S&P500 gainers and losers in today's pre-market session.
Gainers
| Ticker | Change | Comment |
|---|---|---|
| DAY | 24.62% | DAYFORCE INC's (NYSE:DAY) shares rose 24.62% to $65.9 during Monday's pre-market session. In the last 6 months the stock lost 20.39%. |
| FSLR | 5.43% | FIRST SOLAR INC's (NASDAQ:FSLR) shares rose 5.43% to $210.8 during Monday's pre-market session. Following yesterday's 11.05% increase, FSLR demonstrates further positive momentum in today's pre-market session with a 5.43% gain. |
| ENPH | 3.33% | Exciting news for ENPHASE ENERGY INC (NASDAQ:ENPH) as their shares soared 3.33% to $36.0 during the pre-market session on Monday. Shareholders saw the stock price going 30.87% lower in the past 3 months. |
| UNH | 2.76% | UNITEDHEALTH GROUP INC (NYSE:UNH) recorded a 2.76% increase in share price during the pre-market session, reaching $312.41 on Monday. Following yesterday's 11.98% increase, UNH demonstrates further positive momentum in today's pre-market session with a 2.76% gain. |
| EPAM | 2.66% | Investors witnessed a remarkable surge in EPAM SYSTEMS INC (NYSE:EPAM) during Monday's pre-market session, with the stock price rising 2.66% to $161.9. Shareholders saw the stock price going 40.74% lower is the past 6 months. |
| CVS | 2.07% | CVS HEALTH CORP (NYSE:CVS) experienced an impressive 2.07% increase in share price, reaching $70.02 during the pre-market session on Monday. |
| BIIB | 2.04% | BIOGEN INC (NASDAQ:BIIB) recorded a 2.04% increase in share price during the pre-market session, reaching $141.42 on Monday. The stock is trading 31.36% lower than a year ago. |
For the full premarket gainers list go to our premarket gainers page.
175.3
+7.12 (+4.23%)
319.97
+8.43 (+2.71%)
78.03
+1.99 (+2.62%)
249.91
+4.07 (+1.66%)
180.98
+2.36 (+1.32%)
26.93
+0.81 (+3.1%)
68.85
-0.02 (-0.03%)
Find more stocks in the Stock Screener
BIIB Latest News and Analysis
