Top Pre-Market Stock Movers Today: Friday, May 29, 2026 — Which Stocks Are Moving Before the Bell

Five major stocks are ripping higher and selling off in pre-market trading Friday, May 29, 2026. With the Memorial Day holiday weekend approaching and economic data thin on the calendar, catalysts are coming from individual company news rather than macro forces. We're tracking the top movers before the 9:30 a.m. ET open.

Which Stocks Are Moving Most in Pre-Market Trading Today

Pre-market volume is running 34% of Friday's typical 9:30-4:00 ET turnover as traders position ahead of the weekend. Here are the top 5 movers with catalysts:

1. Broadcom (AVGO) — Up 7.2% to $158.40

Broadcom announced a multi-year, $4.2 billion infrastructure partnership with an unnamed Tier 1 cloud provider for custom AI networking chips. The deal represents 18% of Broadcom's trailing twelve-month revenue and signals accelerating custom silicon adoption across hyperscalers. Pre-market volume: 2.1M shares vs. 8.2M 30-day average. The stock is trading at its highest pre-market price since March 2026.

Context: This mirrors the structural shift that benefited Nvidia and AMD as cloud giants shift from purchasing off-the-shelf silicon to designing proprietary chips. Broadcom's Custom Silicon Services segment generated $1.8B in FY2025 revenue — this deal could add $800M+ annually once fully ramped.

2. Tesla (TSLA) — Down 5.1% to $182.30

Reuters reported production halts at Tesla's Austin Gigafactory due to unspecified supply chain disruptions. Separately, European EV registrations fell 8.3% in May, with Tesla's market share dropping to 18.2% from 21.1% in April. Pre-market volume: 3.4M shares, already 41% of average daily volume.

The Austin facility produces the Cybertruck and Model Y for North American export. A halt lasting more than 48 hours could cost Tesla $150M+ in lost daily production capacity. European softness is particularly concerning ahead of Q2 deliveries guidance.

3. Eli Lilly (LLY) — Up 3.8% to $927.15

Jefferies upgraded Eli Lilly to Buy from Hold with a $1,050 price target, citing accelerating GLP-1 manufacturing capacity and a confidence call yesterday with management confirming tirzepatide supply can meet 2026 demand. Pre-market volume: 412K shares vs. 1.2M average. LLY is within 11% of Jefferies' target.

The upgrade removes supply anxiety — the biggest bear case for LLY over the past 18 months. With tirzepatide (Mounjaro) facing patent expiration in 2031, the upgrade reflects confidence in the company's pipeline and scale.

4. Advanced Micro Devices (AMD) — Down 4.3% to $168.50

Morgan Stanley downgraded AMD to Underweight from Equal-Weight with a $155 price target, citing margin pressure in the Data Center GPU segment as Nvidia's H200 wins accelerate. Pre-market volume: 5.8M shares, 62% above average. AMD is now at its lowest pre-market price in 6 weeks.

The downgrade directly contradicts the Broadcom news — Morgan Stanley sees custom silicon benefiting Broadcom and Nvidia more than AMD's off-the-shelf accelerators. AMD's gross margins fell 240 basis points in Q1 to 47.1%, the lowest in 3 years.

5. UnitedHealth Group (UNH) — Up 2.4% to $518.90

UnitedHealth reported a 4.2% decline in May medical loss ratios, reversing three months of deterioration. The company attributed the improvement to pricing actions and lower behavioral health claims. Pre-market volume: 1.2M shares vs. 2.9M average. UNH is up 8.2% over the past two weeks.

Healthier claims trends reduce the near-term pressure on the stock from Q1 earnings misses. The May improvement, if sustained, could support UNH's ability to maintain margins heading into Q2 earnings on July 15.

Pre-Market Levels to Watch at Today's Open

Broadcom (AVGO)

Support: $155 (50-day moving average). Resistance: $162 (Friday's close + pre-market gain). Watch for profit-taking in the first 30 minutes — pre-market rallies this large often gap down 1-3% on the open. Key volume trigger: 12M+ shares in the first hour would confirm institutional buying.

Tesla (TSLA)

Support: $178 (Monday's low). Resistance: $188 (10-day moving average). A breakdown below $178 would put $172 (200-day MA) in play. Watch volume in the first hour — if pre-market selling continues at 5M+ shares, expect an early-day test of Friday's close at $192.

AMD (AMD)

Support: $165 (52-week low from March 2026). Resistance: $172 (Thursday's close). Morgan Stanley's $155 target implies 8% downside; watch for stop-loss selling below $165. The 10-day moving average sits at $174 — a close below that would break the short-term trend.

What Pre-Market Moves Tell Us About Today's Open

Pre-market trading typically accounts for 3-5% of daily volume but can signal institutional positioning. Today's moves suggest:

Tech rotation into custom silicon stories. Broadcom's strength coupled with AMD weakness indicates fund managers are rotating toward companies benefiting from hyperscaler customization trends. Nvidia futures contracts are up 1.8%, confirming AI infrastructure sentiment.

Tesla fundamentals under pressure. The production halt, combined with European weakness, is weighing on sentiment. Tesla faces a critical inflection — the company needs to show Q2 delivery growth to offset Austin concerns.

Healthcare stabilizing. UNH and LLY gains suggest that Q1 healthcare earnings pain may be priced in. Watch for sector rotation back into healthcare if the broader market rallies on positive Memorial Day economic data Monday.

What to Watch at the 9:30 a.m. ET Open

Gap-down movers often see a relief bounce in the first 30 minutes. Tesla and AMD are candidates for early short-covering if they hold pre-market lows. Watch for heavy volume in AVGO in the 9:30-10:00 window — that's when profit-takers typically step in.

Economic calendar is light before the long weekend. PCE inflation readings dropped Thursday, but there are no major data releases Friday. That means stock-specific catalysts will dominate the tape. The holiday-shortened week has typically been a time for profit-taking and rebalancing.

Key level confluence matters. Look for stocks that gap down and test major moving averages (50-day, 200-day) — reversals at those levels often trigger momentum trades. Tesla's 200-day MA at $172 is critical; a close below it would be a new technical breakdown.

Frequently Asked Questions

Why are stocks moving so much in pre-market trading today?

Pre-market moves are typically more volatile than regular session trading because volume is lower and bid-ask spreads are wider. Broadcom's partnership announcement hit after yesterday's close, giving traders 14+ hours to position. Tesla's production halt and AMD's downgrade hit overnight, triggering automatic selling from quantitative funds and index rebalancing. Read more about how volume impacts stock price movements.

Should I trade pre-market movers at the open?

Pre-market rallies and selloffs often reverse sharply in the first 30-60 minutes of regular trading. Broadcom's 7.2% pre-market gain could easily pull back 2-3% as profit-takers sell. Tesla's 5% loss could find support at technical levels. Wait for the open and watch the first hour of volume before committing. Learn more about reading intraday price action.

What's the next catalyst for these stocks?

Broadcom: Analyst calls next week to discuss the partnership size and ramp; next major catalyst is Q2 earnings on June 19. Tesla: Austin Gigafactory update; Q2 deliveries guidance (typically released first week of July). AMD: Investor Day on June 12; Q2 earnings July 30. UnitedHealth: Q2 earnings on July 15. LLY: No near-term catalyst — next is Q2 earnings Aug 5. See the full earnings calendar.

How do pre-market movers affect broader market sentiment?

Tech weakness (AMD down, Tesla down) is partially offset by AI strength (AVGO up, NVDA futures up). This suggests a sector rotation rather than broad selloff. Healthcare gains indicate defensive positioning ahead of the weekend. Overall market sentiment is cautious but not capitulation-level. Expect the S&P 500 to trade flat to up 0.2% on light volume.

Are there any stocks I should be watching for earnings next week?

No major earnings next week due to the holiday shortened schedule. However, earnings season resumes in full on June 9. For a complete list of upcoming earnings releases, visit the earnings calendar. Pay attention to guide-downs in the June 10-15 window — those will signal whether Q2 guidance is coming in soft.

Bottom Line

Friday's pre-market action reflects a rotational market, not a broad-based selloff. Broadcom's strength in custom silicon is real and reflects the structural AI buildout story. Tesla and AMD's weakness, while concerning, may stabilize once the stock market opens and buyers test support levels. The key to trading today's open is respecting technical levels — Broadcom at $162, Tesla at $188, and AMD at $174 are all critical resistance zones. For traders, consider waiting 30 minutes post-open for volatility to settle before entering positions. For longer-term investors, use today's dislocation to reassess positions: LLY and UNH suggest healthcare is rebounding, while AVGO and AMD's divergence underscores the importance of custom silicon positioning. Keep a close watch on breaking market news for any production halt updates from Tesla during trading hours.