Premarket Movers

Premarket stock movers, including top gainers, losers, and most active stocks before regular market hours.
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2026-09-28

Today's Premarket Market Analysis

TODAY, 9:00a ET: Biotech data readouts and M&A rejection drive premarket volatility. KOD surging +100% on pivotal Phase 3 wet AMD trial results; GYGY +71% on heavy speculative volume. GFI gapping down -13% after its $27B takeover bid for Northern Star was rejected; MDB sliding -19% on high volume.(more...)

Tape Overview

The premarket session shows a bifurcated tone as massive biotech gains and high-tech volume offset a significant sell-off in the gold mining sector.

Top Mover: KOD — Phase 3 Topline Results

Kodiak Sciences Inc (KOD) doubled in value to $64.69 on 4.4M shares following positive topline data from its DAYBREAK Phase 3 study for wet AMD. This move represents a massive 5.8x volume spike versus its historical average.

Top Loser: GFI — Rejected Takeover Bid

Gold Fields Ltd (GFI) fell -13.6% on 815k shares after Northern Star Resources rejected its "opportunistic" $27 billion acquisition proposal. Investors are reacting to the failed expansion strategy and the 22% premium originally offered by the South African miner.

Also Moving

Game Your Game, Inc. (GYGY) is gapping up +71% on 55M shares of speculative volume, while ClearOne, Inc. (CLRO) jumps +62% on an extreme 197x volume ratio. DataMeds AI (MEDS) climbed +29% after launching a mobile app targeting the high-growth GLP-1 medication market.

Broader Context

Traders should monitor NVDA and META for direction as they lead absolute volume, while the KOD result may spark a sympathy rally across clinical-stage ophthalmology names.

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Data last updated: Today at 9:29 AM EDT

Premarket ActivesActives

%ChgLastSymbCompanyVolume
+2.0%
229.66
Nvidia Corp8839k
-0.2%
749.90
Meta Platforms, Inc. Class A Common Stock1683k
-0.1%
148.47
Space Exploration Technologies Corp. Class A Common Stock8112k
-0.6%
1075.45
Micron Technology, Inc.953k
-2.4%
1735.58
Sandisk Corporation Common Stock391k
-1.9%
120.70
Intel Corp4914k
-24%
311.17
MongoDB, Inc. Class A1607k
-0.8%
625.80
Advanced Micro Devices678k
-2.1%
505.30
Microsoft Corp758k
+92%
62.03
Kodiak Sciences Inc Common Stock5449k

Premarket GainersGainers

%ChgLastSymbCompanyVolume
+92%
62.03
Kodiak Sciences Inc Common Stock5449k
+67%
5.77
ClearOne, Inc. Common Stock14700k
+54%
2.45
Jinxin Technology Holding Company American Depositary Shares12695k
+26%
3.92
DataMeds AI, Inc. Common Stock13078k
+23%
2.06
Lakewood-Amedex Biotherapeutics Inc. Common Stock27443k
+20%
3.00
Delixy Holdings Limited Class A Ordinary Shares100k
+16%
3.82
Magnachip Semiconductor Corp.837k
+16%
134.40
AAR Corp.1k
+15%
1.71
Stablecoin Development Corporation7325k
+14%
1.18
Onconetix, Inc. Common Stock11637k

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Premarket FAQs

Q: When does premarket open?
A: Premarket trading sessions start weekdays around 4:00 am EST and last until the market open, which is 9:30 am EST.
Q: Can you trade options premarket?
A: Options trading during premarket hours is generally not available. Options markets typically operate only during regular trading hours.
Q: How to trade premarket?
A: Most brokerages offer trading during premarket and after hours. Some popular examples are Robinhood, TD Ameritrade and E*Trade. It's usually best to trade with limit orders during the premarket, due to lower trading volumes.

⏰ Premarket Trading Hours by Brokerage

BrokeragePremarket Hours (ET)Notes
Interactive Brokers4:00 a.m. – 9:30 a.m.IBKR Pro from 4:00 a.m.; IBKR Lite from 7:00 a.m.
Webull4:00 a.m. – 9:30 a.m.Full extended hours available
Moomoo4:00 a.m. – 9:30 a.m.Extensive early access
TradeZero4:00 a.m. – 9:30 a.m.Full early access from 4:00 a.m.
Charles Schwab7:00 a.m. – 9:25 a.m.Orders may be placed after 8:05 p.m. the prior day
Fidelity7:00 a.m. – 9:28 a.m.Short sale orders allowed from 8:00 a.m.
E*TRADE7:00 a.m. – 9:30 a.m.Limit orders allowed from 7:00 a.m.
Merrill Edge7:00 a.m. – 9:30 a.m.Standard premarket access
Robinhood7:00 a.m. – 9:30 a.m.Extended hours trading enabled
Firstrade8:00 a.m. – 9:25 a.m.Shorter premarket window
Ally Invest8:00 a.m. – 9:30 a.m.Standard premarket access
TradeStation8:00 a.m. – 9:30 a.m.Premarket begins at 8:00 a.m.
Public8:00 a.m. – 9:30 a.m.Premarket trading supported
SoFi Invest9:00 a.m. – 9:30 a.m.Very limited premarket access
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