Each week our technical scanner sweeps the S&P 500 and Nasdaq 100, measuring dozens of indicators to identify stocks where bearish signals materially outnumber bullish ones. The stocks that rise to the top of that ranking become our short-candidate watchlist — names where the technical picture, taken as a whole, suggests the path of least resistance may be downward. Below are the five stocks generating the strongest technical sell signals as of 10 September 2026.
Important risk warning: Short selling carries substantially greater risk than buying shares. Losses on a short position are theoretically unlimited, margin requirements add financial leverage, and a sudden positive catalyst can trigger sharp short-covering rallies. The analysis below is purely technical and educational; it is not a recommendation to short any security. Always apply your own due diligence and consult a qualified financial adviser before acting.
1. Leidos (LDOS) – 13 technical sell signals
Price: $133.78 | Daily change: -3.88%
View the full technical analysis of Leidos
Leidos leads this week’s short-candidate list with 13 bearish technical signals against only 3 bullish ones — one of the widest imbalances in the current scan. The defence and technology services group has had a difficult 2026, with the shares spending much of the year under pressure before a partial recovery in late summer. A drop of nearly 4% in a single session underscores how fragile sentiment remains.
Fundamentally, recent commentary has raised questions about the quality of returns relative to the stock’s apparent value. While some analysts flagged the name as oversold earlier in the summer — pointing to a clutch of government contract awards — that optimism has not translated into sustained price momentum. The stock briefly rallied past $114 in late July before continuing its broader recovery to current levels, yet each bounce has attracted renewed selling.
With the shares still well below levels seen at the start of the year and the technical picture dominated by sell signals, near-term momentum appears unfavourable. Bears will note that defence-budget uncertainty and questions around margin quality remain overhangs. However, any positive contract announcement or government spending news could reverse sentiment quickly, making this a higher-risk short candidate.
2. Omnicom Group (OMC) – 13 technical sell signals
Price: $81.76 | Daily change: -5.03%
View the full technical analysis of Omnicom Group
Omnicom ties Leidos on bear-signal count but earns second place on the basis of a steeper single-session decline of more than 5%. The global advertising group has faced a difficult run of news in recent months, including a second-quarter earnings report that disappointed on the profitability front, sending the shares sharply lower in late July. More recently, the loss of PepsiCo’s substantial global media account to a rival agency triggered another wave of selling in early September.
The competitive landscape for large advertising holding companies continues to shift as clients reassess agency relationships and in-house capabilities. Losing a flagship account of PepsiCo’s scale is both a direct revenue headwind and a reputational signal that rivals are winning new business pitches. Despite a brief recovery of around 6% in August following the earnings report, the shares have given back those gains and are now trading at levels that reflect persistent investor concern.
With 13 technical sell signals and only 6 bullish counterweights, the chart does not yet suggest that a durable bottom is in place. That said, Omnicom retains a diversified client base and a meaningful dividend, factors that may limit downside and attract value-oriented buyers at lower prices. Short sellers should factor in the potential for further account wins or a valuation-driven rebound.
3. Palo Alto Networks (PANW) – 13 technical sell signals
Price: $328.48 | Daily change: -9.28%
View the full technical analysis of Palo Alto Networks
Palo Alto Networks posts the most dramatic single-session decline on this list, shedding more than 9% on 10 September. The cybersecurity leader reported strong fiscal fourth-quarter results in early September — revenue growth and next-generation security annual recurring revenue both impressed — yet the market’s reaction has been notably cool. This pattern, where strong results fail to sustain a rally, is itself a bearish technical signal worth noting.
Analyst commentary following the earnings release was mixed. While the underlying business metrics, including ambitious AI-driven guidance for fiscal 2027, were broadly positive, several observers pointed to the stock’s rich valuation as a constraint on further upside. When a high-multiple growth stock struggles to advance on good news, it often signals that expectations were already fully priced in — or that the macro backdrop is weighing on sentiment towards premium-rated technology names.
The technical scanner now shows 13 sell signals versus just 3 buy signals for PANW. Bears will argue that the valuation gap relative to near-term earnings power leaves the stock vulnerable to further de-rating. However, shorting a structurally growing cybersecurity franchise with strong customer retention and expanding AI-security offerings carries meaningful risk. A renewed bout of risk appetite or a positive sector catalyst could see the shares recover sharply.
4. Autodesk (ADSK) – 12 technical sell signals
Price: $241.73 | Daily change: -2.41%
View the full technical analysis of Autodesk
Autodesk enters the short-candidate list with 12 technical sell signals and only 3 bullish counterparts. The 3D design and engineering software group has had a volatile summer: shares suffered a sharp decline of more than 16% in August — one of the worst single-day moves in recent memory for the stock — before a partial recovery heading into late August and September. On 10 September the stock is again under pressure, falling 2.41%.
The August sell-off appears to have been triggered by a cautious earnings-related update, with the market reacting poorly to guidance that tempered near-term expectations despite the company’s ongoing transition to a subscription-based revenue model. A subsequent bounce ahead of second-quarter fiscal 2027 results, driven partly by enthusiasm around the acquisition of MaintainX, provided only a temporary reprieve. Trading volumes around mid-day sessions have at times been well below average, suggesting a lack of conviction among buyers.
The combination of an elevated valuation, a business model still in transition, and a chart dominated by sell signals makes Autodesk a technically compelling short candidate. Nevertheless, the company’s entrenched position in architecture, engineering and construction software — alongside strong free cash-flow generation — means that any positive earnings surprise or upgrade cycle could quickly reverse the recent weakness.
5. Constellation Brands (STZ) – 12 technical sell signals
Price: $129.35 | Daily change: -0.98%
View the full technical analysis of Constellation Brands
Constellation Brands rounds out this week’s list with 12 technical sell signals and 6 bullish ones — the most balanced bear-to-bull ratio among the five candidates, though still clearly tilted to the downside. The beer, wine and spirits group has been in a prolonged downtrend, with shares losing ground in the months following its last earnings report and underperforming the broader S&P 500 over that period. A Barclays hold rating from July reflects the cautious consensus view.
On the corporate finance front, Constellation recently announced the full redemption of $600 million in senior notes maturing in 2027, a move that signals balance-sheet discipline but also highlights the company’s elevated debt load relative to its current market valuation. Investors appear to be in a holding pattern ahead of the next earnings release, expected in October, with the shares trading in a relatively narrow band in recent sessions.
The broader headwinds facing Constellation include evolving consumer preferences that have weighed on premium beer volumes, ongoing concerns about pricing power in a more cautious consumer environment, and currency sensitivity tied to its Mexican brewing operations. While 12 sell signals in our scanner is a meaningful bearish reading, the 6 bullish signals and an approaching earnings catalyst mean short sellers face genuine two-way risk here, particularly if the October report delivers a positive surprise.
Disclaimer: This article is produced for informational and educational purposes only and does not constitute investment advice or a solicitation to buy or sell any security. Technical analysis identifies patterns in historical price and volume data; it does not guarantee future performance. Short selling involves significant risks, including potentially unlimited losses. Always conduct your own research and seek independent financial advice before making any investment decision. The Wall Street Stock Investors Club and its contributors hold no positions in the securities mentioned at the time of publication unless explicitly stated.