NEW YORK — Wall Street demonstrated robust resilience on Friday, propelled by a wave of geopolitical optimism and a string of stellar corporate earnings reports that outweighed persistent underperformance in the semiconductor sector.

The blue-chip Dow Jones Industrial Average clinched yet another historic closing high, while the benchmark S&P 500 Index secured its eighth consecutive weekly gain based on Friday closing figures—a testament to the enduring underlying strength of the current bull market.

According to market analysts, investor sentiment was heavily buoyed by widening optimism regarding a diplomatic resolution or stabilization in the ongoing Iran conflict. Despite the geopolitical friction, corporate America has continued to churn out robust quarterly results, successfully reassuring a nervous market that macroeconomic fundamentals remain on solid footing.

Wall Street by the Numbers
The major indices closed the trading session on Friday, May 22 (local time), with broad-based gains, though the tech-heavy Nasdaq lagged slightly behind its peers due to weakness in specific chipmakers.

Dow Jones Industrial Average: Advanced 294.04 points (0.58%) to finish at a record-breaking 50,579.70.
S&P 500 Index: Rose 27.75 points (0.37%) to settle at 7,473.47.
Nasdaq Composite: Edged up 50.87 points (0.19%) to close the week at 26,343.97.
Big Tech Rallies, but Nvidia Falters After Earnings
Mega-cap technology equities enjoyed a largely positive session, with one glaring exception: artificial intelligence pioneer Nvidia.

While the broader sector rallied, Nvidia suffered its second consecutive day of losses. Shares of the AI chip juggernaut fell 1.90%, continuing a post-earnings slump that has puzzled some retail investors but was largely anticipated by institutional observers.

Just two days prior, Nvidia reported exceptionally strong quarterly earnings and issued robust forward-looking guidance. However, the subsequent stock performance has been sluggish. Wall Street experts point to several overlapping catalysts for this "sell-the-news" reaction:

Why is Nvidia sliding despite beating expectations?

Whisper Expectations Too High: Market expectations for the AI leader had reached near-impossible heights, meaning even an objective "beat" failed to stun investors.
Priced-In Optimism: The stock had aggressively rallied in the weeks leading up to the report, suggesting the stellar guidance was already fully baked into the valuation.
Rising Competitive Threats: Investors are increasingly eyeing a diversifying AI hardware landscape, where formidable rivals are beginning to chip away at Nvidia's near-monopoly.
In stark contrast to Nvidia’s retreat, its chief rival, Advanced Micro Devices (AMD), saw its shares surge by 3.99%, showcasing a clear divergence within the AI logic chip sector.

Other Big Tech stalwarts booked solid gains. Tesla climbed 1.95%, while Apple and Google-parent Alphabet notched gains of 1.25% and 1.21%, respectively. Meta Platforms bucked the positive trend slightly, finishing virtually flat with a minor dip of -0.47%.

Memory Chip Slowdown Casts a Shadow on Korean Tech Giants
While logic chipmakers experienced a mixed bag, the memory semiconductor sector faced a synchronized downturn.

U.S. memory giant Micron Technology shed 1.46%, while flash-memory specialist SanDisk tumbled 4.09%. This collective retreat in memory chip equities signals a potentially unfavorable near-term trading environment for South Korea's benchmark market heavyweights, Samsung Electronics and SK Hynix, which traditionally move in lockstep with Wall Street's memory sector.

Conversely, corporate IT infrastructure providers and legacy tech hardware giants stole the spotlight. Driven by a wave of enterprise spending upgrades, shares of Dell Technologies, Qualcomm, and Hewlett Packard (HP) skyrocketed, with each logging explosive gains of over 10% by the closing bell.

As Wall Street wraps up a historic week, institutional investors remain keenly focused on whether the momentum of non-tech sectors can sustain the S&P 500's historic weekly winning streak, or if the cooling momentum in AI bellwethers like Nvidia signals a broader consolidation ahead.