Why Is Applied Materials (AMAT) Stock Down -3.27% Today?
Key Takeaways
- AMAT shares fell about 3.27% to $476.22, down from a prior close of $492.32.
- A reported short position by prominent investor Michael Burry pressured sentiment across the AI semiconductor space.
- Recent insider selling by Chief Executive Officer Gary Dickerson added to the bearish tone.
- The entire semiconductor-equipment complex traded lower, led by peers such as LRCX and KLAC.
- Broader caution ahead of NVDA earnings and the Jackson Hole symposium weighed on risk appetite.
- Traders are watching whether support near recent lows holds and how Nvidia's results reset AI-sector expectations.
Opening Summary
Applied Materials, Inc. (AMAT), the world's largest supplier of semiconductor-manufacturing equipment, services, and software, extended its recent slide on Monday. The stock declined roughly 3.27% to $476.22, versus a previous-session close of $492.32, as a combination of bearish positioning, insider selling, and a broad retreat in AI-related chip names drove the move lower. The selloff reflects mounting investor anxiety that the semiconductor-equipment sector's extraordinary 2026 rally may have priced in an aggressive level of future growth.
Short Seller Discloses Bearish Bet
The most prominent catalyst cited by markets was a report that Michael Burry, the investor known for his prescient bet against the housing market ahead of the 2008 financial crisis, had disclosed a short position in AMAT. Burry has argued that valuations across the AI semiconductor complex have reached historic extremes and that the Philadelphia Semiconductor Index could face a correction on the order of roughly 30%. The disclosure rippled across the sector, prompting investors to reassess stretched multiples in the wafer-fabrication-equipment space.
Insider Selling Weighs on Sentiment
Compounding the pressure, Chief Executive Officer Gary Dickerson sold more than 78,000 shares of AMAT in late June, transactions worth over $54 million. While executive stock sales are common and often reflect pre-arranged diversification rather than a specific view on near-term fundamentals, the disclosure was cited by traders as an additional signal of caution at a time when the shares have more than doubled over the past year.
Semiconductor Sector and AI Selloff
The decline in AMAT did not occur in isolation. Semiconductor-equipment peers, including LRCX and KLAC, also traded lower, while a wider pullback in AI-linked names dampened investor appetite. Sharp declines in Asian technology leaders earlier in the session reinforced the cautious tone, as investors positioned defensively ahead of NVDA's earnings report and the Federal Reserve's Jackson Hole symposium later in the week.
Valuation Concerns After a Stellar Run
Underpinning the move is a broader debate about valuation. AMAT has been one of the strongest performers of the AI infrastructure build-out, gaining more than 200% over the trailing 52 weeks. Even after reporting record fiscal third-quarter results in mid-August, with revenue up 25% year over year and fourth-quarter guidance above consensus, the shares fell. Investors have signaled that "beating estimates" is no longer sufficient for a stock trading at a premium multiple, and that clearer evidence of accelerating, sustainable growth is now required to justify current levels.
Market Context and Trading Activity
Trading activity in AMAT was elevated as the session unfolded, consistent with the sector-wide de-risking. The move aligned with weakness in semiconductor ETFs and equipment peers rather than a company-specific fundamental surprise, and it diverged only modestly from a broader market that was also under pressure. From a technical standpoint, the shares have slipped below several short-term reference points established during the post-earnings consolidation, leaving traders focused on whether prior support levels in the mid-to-high $470s can hold.
What Comes Next for AMAT
Looking ahead, investors will watch NVDA's results for a read on the durability of AI capital spending, as well as commentary from Jackson Hole that could shape rate expectations. For AMAT specifically, the next key catalyst is its fiscal fourth-quarter earnings report, where management's outlook on semiconductor-systems growth will be closely scrutinized. Wall Street analysts have maintained constructive price targets, but the recent price action underscores that sentiment can shift quickly when valuation and positioning become stretched. Risks include a potential slowdown in memory or foundry spending, further export-control developments, and any sign that the AI equipment cycle is cooling faster than anticipated.
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Contributor
Sergey Savastiouk, Ph.D. has a degree in Applied Mathematics from Moscow University and has extensive experience as an entrepreneur, investor, manager, and mathematician. His professional expertise is in applied mathematics, mathematical modeling, system and pattern analysis, and software and hardware system integration. He has served as the CEO of several hi-tech start-up companies and nonprofit organizations, which has given him proven capabilities in business strategy for high-tech start-up companies, market assessment, company formation, team building, product development, marketing, and sales. He has published numerous articles in journals and magazines on related fields. As a retail investor, he spent 15 years developing his proprietary trading and quantitative algorithms (now Tickeron’s A.I.), which brought him significant returns in trading the stock market. His current work and goal in founding Tickeron is to bring professional, sophisticated stock market analysis capabilities to retail investors via an easy-to-use interface.
AMAT's MACD Histogram crosses above signal line
The Moving Average Convergence Divergence (MACD) for AMAT turned positive on September 21, 2026. Looking at past instances where AMAT's MACD turned positive, the stock continued to rise in 37 of 45 cases over the following month. The odds of a continued upward trend are 82%.
Technical Analysis (Indicators)
Bullish Trend Analysis
The RSI Indicator points to a transition from a downward trend to an upward trend -- in cases where AMAT's RSI Oscillator exited the oversold zone, 22 of 27 resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 81%.
The Stochastic Oscillator suggests the stock price trend may be in a reversal from a downward trend to an upward trend. 44 of 55 cases where AMAT's Stochastic Oscillator exited the oversold zone resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 80%.
The Momentum Indicator moved above the 0 level on September 18, 2026. You may want to consider a long position or call options on AMAT as a result. In 65 of 87 past instances where the momentum indicator moved above 0, the stock continued to climb. The odds of a continued upward trend are 75%.
Following a +11.22% 3-day Advance, the price is estimated to grow further. Considering data from situations where AMAT advanced for three days, in 252 of 320 cases, the price rose further within the following month. The odds of a continued upward trend are 79%.
Bearish Trend Analysis
Following a 3-day decline, the stock is projected to fall further. Considering past instances where AMAT declined for three days, the price rose further in 50 of 62 cases within the following month. The odds of a continued downward trend are 65%.
The Aroon Indicator for AMAT entered a downward trend on September 21, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.
Fundamental Analysis (Ratings)
The Tickeron PE Growth Rating for this company is 9 (best 1 - 100 worst), pointing to outstanding earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron SMR rating for this company is 25 (best 1 - 100 worst), indicating very strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Price Growth Rating for this company is 43 (best 1 - 100 worst), indicating steady price growth. AMAT’s price grows at a higher rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Profit vs. Risk Rating rating for this company is 44 (best 1 - 100 worst), indicating well-balanced risk and returns. The average Profit vs. Risk Rating rating for the industry is 63, placing this stock slightly better than average.
The Tickeron Valuation Rating of 67 (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (13.774) is normal, around the industry mean (7.599). P/E Ratio (38.358) is within average values for comparable stocks, (153.531). Projected Growth (PEG Ratio) (0.884) is also within normal values, averaging (0.796). Dividend Yield (0.004) settles around the average of (0.002) among similar stocks. P/S Ratio (10.764) is also within normal values, averaging (27.897).
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General Information
a manufacturer of equipment and software for the semiconductor industries
Industry ElectronicProductionEquipment
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