May 22 Stock Market Report: Major Tech Stocks Including Nvidia Mixed; Market Shows Stability

May 21, 2026 Stock Market Trends: Signs of Market Stabilization Amid Mixed Performance in Key Semiconductor Stocks

On May 21, 2026, major tech stocks on the U.S. stock market showed mixed performance with slight fluctuations. Notably, Nvidia (Nvidia), a leader in the artificial intelligence (AI) industry, closed slightly higher, up 0.01% at $223.47, and Micron (Micron) rose 0.05% to $731.99, maintaining a firm upward trend. Conversely, Tesla (Tesla) increased by 0.03% to $417.26, and Apple (Apple) gained 0.01% to $302.25, indicating that some large tech stocks also saw modest gains, reflecting a cautious market sentiment.

Looking at the aggregate movement of top market capitalization stocks, the market on this day appeared to be seeking stability rather than sharp volatility. Nvidia's market cap stood at $5.41 trillion, Alphabet (Alphabet) at $4.71 trillion, Apple at $4.44 trillion, and Microsoft (Microsoft) at $3.13 trillion, demonstrating the robust fundamentals of tech companies. However, some stocks experienced a decline compared to the previous day, with Exxon Mobil (Exxon Mobil) falling 0.04% to $156.28, and Walmart (Walmart) also dropping 0.02% to $130.85, underscoring the market's sideways trend.

This data represents a snapshot from May 21, 2026, illustrating temporary market movements. The fluctuations in individual stocks were likely influenced by a complex interplay of market sentiment, company-specific announcements, and macroeconomic indicators on that particular day.

Analysis of Key Tech Stocks and ETFs

Based on stock market data from May 21, 2026, the following is an analysis of current prices, percentage changes, market capitalization, and P/E ratios for major stocks.

Stock	Current Price	Change	Market Cap	P/E Ratio
Nvidia (Nvidia)	$223.47	+0.01%	$5.41 trillion	34.2
Alphabet (Alphabet)	$388.91	0.00%	$4.71 trillion	29.7
Apple (Apple)	$302.25	+0.01%	$4.44 trillion	36.6
Microsoft (Microsoft)	$421.06	+0.01%	$3.13 trillion	25.1
Amazon (Amazon)	$265.01	+0.02%	$2.85 trillion	31.7
TSMC (TSM)	$401.62	+0.02%	$2.08 trillion	34.5
Broadcom (Broadcom)	$417.76	+0.02%	$1.98 trillion	81.3
Vanguard S&P 500 ETF (VOO)	$681.57	+0.01%	$1.60 trillion	27.9
Tesla (Tesla)	$417.26	+0.03%	$1.57 trillion	386.4
Meta (Meta)	$605.06	0.00%	$1.54 trillion	22.0
Walmart (Walmart)	$130.85	-0.02%	$1.04 trillion	47.9
Berkshire Hathaway (BRK-B)	$480.90	0.00%	$1.04 trillion	14.3
Eli Lilly (Eli Lilly)	$1,018.87	-0.00%	$0.91 trillion	36.2
Micron (Micron)	$731.99	+0.05%	$0.83 trillion	34.6
JPMorgan Chase (JPM)	$301.98	+0.02%	$0.81 trillion	14.4
SPDR S&P 500 ETF (SPY)	$741.25	+0.01%	$0.74 trillion	27.8
AMD (AMD)	$447.58	+0.08%	$0.73 trillion	149.2
Exxon Mobil (XOM)	$156.28	-0.04%	$0.65 trillion	26.3
Visa (Visa)	$330.75	0.00%	$0.63 trillion	28.8
Intel (Intel)	$118.96	+0.07%	$0.60 trillion	-
ASML	$1,550.13	+0.06%	$0.60 trillion	51.6
Johnson & Johnson (JNJ)	$229.32	-0.00%	$0.55 trillion	26.6
Oracle (Oracle)	$188.16	+0.04%	$0.54 trillion	33.8
Costco (Costco)	$1,074.01	-0.02%	$0.48 trillion	55.9
Cisco (Cisco)	$114.35	-0.01%	$0.45 trillion	38.1
Invesco QQQ (QQQ)	$713.15	+0.02%	$0.44 trillion	34.8
Mastercard (Mastercard)	$498.04	-0.00%	$0.44 trillion	28.8
Chevron (Chevron)	$191.33	-0.03%	$0.38 trillion	33.3
AbbVie (AbbVie)	$212.30	-0.01%	$0.38 trillion	104.1

In terms of P/E ratios, AMD, a semiconductor-related stock, recorded a very high P/E of 149.2, suggesting that its current stock price is overvalued relative to the company's earnings. In contrast, JPMorgan Chase (14.4) and Berkshire Hathaway (14.3) show relatively low P/E ratios, appealing as value stocks. Broadcom (81.3) also recorded a high P/E, interpreted as reflecting future growth potential or market expectations. Meta (22.0) and Microsoft (25.1) maintain reasonably P/E levels and can be considered stable investment options.

Among ETF products, the Vanguard S&P 500 ETF (VOO) and SPDR S&P 500 ETF (SPY) recorded P/E ratios of 27.9 and 27.8 respectively, showing the average valuation level of broad market indices. This indicates that overall market sentiment is not overheating and the market is continuing a stable trend. Nvidia (34.2) and TSMC (34.5), which are gaining attention for AI themes, have P/E ratios higher than the average, reflecting high growth potential, but are lower compared to Broadcom (81.3) or AMD (149.2). This suggests that while the market holds expectations for AI-related stocks overall, investors' approaches may vary depending on individual company valuation levels.

Market and Industry Impact Analysis

The stock market data from May 21, 2026, indicates that major U.S. tech stocks exhibited a cautious sentiment, trading with minor fluctuations without a clear direction. This suggests that investors are comprehensively evaluating recent market trends, corporate earnings reports, and macroeconomic indicators to determine future investment strategies. While the New York stock market recently showed relief over a potential U.S.-Iran agreement, analyses suggest that the market is highly sensitive to short-term news, implying that macroeconomic uncertainties have not been entirely resolved.

The semiconductor sector, in particular, showed high volatility day after day. Nvidia, a leading AI chip manufacturer, and TSMC, a major foundry, continued their firm performance with slight gains. However, the high P/E ratio of competitor AMD could spark valuation debates in the market. Intel's P/E ratio being marked as '-' indicates uncertainty regarding its current profitability or market valuation. This highlights significant differences in growth and valuation levels among individual companies within the semiconductor industry.

Meanwhile, the stock price declines of consumer staples company Walmart and energy firm Exxon Mobil can be interpreted as reflecting concerns about an economic slowdown or industry-specific performance differences. However, the modest scale of these declines suggests that they are due to individual factors rather than systemic market risks. The low P/E ratios of financial stock JPMorgan Chase and insurance/investment holding company Berkshire Hathaway highlight their value investment appeal based on stable earnings.

This situation carries significant implications for domestic stock markets as well, as trends in U.S. tech stocks directly influence investor sentiment in South Korea's tech and semiconductor-related sectors. Investors need to closely monitor earnings reports and new product launch trends from leading companies like Nvidia and TSMC to identify investment points for related Korean companies. Furthermore, market volatility may increase around the release of macroeconomic indicators, making it crucial to secure portfolio stability.

Future Outlook and Investment Implications

The stock market data from May 21, 2026, generally indicates an exploratory market trend without a clear direction. Major tech stocks showed efforts to maintain positive momentum, but valuation concerns were observed in some issues. The AI and semiconductor sectors, in particular, continue to receive high growth expectations, but the significant disparity in P/E ratios among individual companies necessitates a cautious approach from investors.

Future market movements are expected to be influenced by various factors, including the monetary policy direction of major central banks, the pace of practical commercialization of AI technology, and geopolitical risks. Given the current market's tendency to react sensitively to minor news, a conservative investment strategy may remain effective amidst lingering uncertainties. However, from a long-term perspective, investments in industries with high growth potential and companies with solid fundamentals are expected to continue.

Investment implications to consider include the following: First, while investing in AI and semiconductor-related companies should account for long-term growth potential, a cautious approach is required for stocks with high valuations. For issues like AMD or Broadcom with high P/E ratios, thorough analysis is needed to determine if future earnings growth can alleviate valuation burdens. Second, stocks in stable sectors such as consumer staples, healthcare, and financials, which are less sensitive to economic downturns, can be considered for portfolio diversification. Companies maintaining low P/E ratios, like JPMorgan Chase or Berkshire Hathaway, can be attractive to investors seeking stable returns.

Third, a strategy of diversified investment across the market using ETF products is also effective. ETFs such as VOO or SPY, which track the S&P 500 index, serve as excellent tools for pursuing market returns while mitigating individual stock risk. Finally, given the potential for high short-term volatility in the current market environment, it is important to allow ample time to thoroughly review a company's fundamentals and long-term growth prospects before making investment decisions. We recommend making rational investment decisions through continuous monitoring of expert analyses and market trends.