Stocks making the biggest moves premarket: Fiserv, Crinetics Pharmaceuticals, Micron & more

CNBC's premarket movers list points to several companies experiencing notable price action before the market open. While the headline itself is broad, it typically indicates that specific news or events are impacting these individual stocks, ranging from earnings reports to analyst upgrades/downgrades or company-specific announcements.

Crinetics Pharmaceuticals (CRNX) is one such name, showing a massive 640.7% year-over-year revenue growth, albeit from a small base of $7.7 million. However, this growth comes with significant unprofitability, evidenced by a -6046.0% net margin and a diluted EPS of -$4.95, indicating it is a high-growth, high-burn biotech.

Micron Technology (MU) is also on the list, reporting robust revenue of $37.4 billion, up 48.9% year-over-year, with healthy gross margins of 39.8% and net margins of 22.8%, translating to a diluted EPS of $7.59. Micron's performance is often a bellwether for the broader semiconductor memory market.

The premarket movements suggest that investors are reacting to specific news for each company. For CRNX, the focus would likely be on clinical trial data or funding rounds, given its early-stage financial profile. For MU, the movement could be tied to demand outlook for memory chips, particularly in AI and data center segments, or competitive dynamics.