Each week our technical scanner sweeps the S&P 500 and Nasdaq 100, measuring a broad set of momentum, trend and volume indicators to identify stocks where bearish signals are clustering. On 14 September 2026, the five names below produced the highest concentration of technical sell signals, making them potential short candidates for traders with an appropriate risk profile.
Important risk warning: Short selling involves risks that go beyond those of a standard long position. Losses on a short trade are theoretically unlimited, margin requirements can change at short notice, and a stock can be recalled by the lender at any time. The analysis below is purely technical in nature and does not constitute investment advice. Always size positions carefully and use stop-loss orders.
1. Leidos (LDOS) – 13 technical sell signals
Price: $133.78 | Daily change: -3.88%
View the full technical analysis of Leidos
Leidos tops today’s bearish scan with 13 sell signals against only 3 bull signals, accompanied by a sharp single-session decline of nearly 4%. The technical picture is notably weak despite some positive headline noise: the company recently confirmed that its Seahawk unmanned surface vessel is now operating alongside a carrier strike group, an operationally significant milestone that initially prompted questions about whether the stock could reclaim the $131 level. The price action on 14 September suggests the answer, at least for now, is no.
From a fundamental standpoint, the picture is mixed. Several analysts have flagged the stock as potentially undervalued on cash-flow metrics, and earlier in the year commentary centred on the uncertainty surrounding health IT contracts. More recently, Zacks highlighted it as a long-term value play. However, value arguments do not always translate into near-term price support, and the divergence between the bullish fundamental narrative and the bearish technical setup is itself a warning sign worth heeding.
Traders considering a short position should note that defence contractors can be sensitive to government budget announcements and contract awards, either of which could trigger a swift reversal. The stock’s recent volatility underlines the importance of disciplined risk management.
2. Omnicom Group (OMC) – 13 technical sell signals
Price: $81.76 | Daily change: -5.03%
View the full technical analysis of Omnicom Group
Omnicom Group shares shed more than 5% on 14 September, the largest single-day decline among today’s five candidates, and the technical scanner registers an identical bear score to Leidos at 13 signals. The advertising giant has had a turbulent second half, with Q2 2026 results that disappointed on profitability sending the stock sharply lower in late July. Although the shares bounced modestly in mid-September — gaining around 1.5% in the prior session — today’s reversal suggests that bounce may have been short-lived.
The valuation debate around Omnicom is nuanced. Analysts have noted that the stock looks stretched relative to its five-year return profile, even after accounting for its strong cash generation. The landmark integration following the major acquisition earlier in the year — which drove a dramatic year-on-year revenue surge in Q1 — adds operational complexity, and markets appear to be reassessing the cost side of that equation. The Q2 profitability miss reinforced those concerns.
Bears should remain cautious given that Omnicom has historically demonstrated resilience in advertising downturns relative to peers, and any surprise improvement in media billing trends could provide a catalyst for recovery. A six-signal bull reading is also a reminder that the picture is not entirely one-sided.
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 is the most dramatic mover on today’s list, falling more than 9% in a single session despite sharing the top bear-signal count of 13. That magnitude of decline in a large-cap cybersecurity name demands attention. The context is important: the company reported better-than-expected free cash flow and healthy FCF margins in its fiscal Q4, and the CEO has been publicly articulating a compelling narrative around AI-driven cybersecurity consolidation. Yet the market’s reaction has been decisively negative, suggesting that strong operational metrics are already embedded in what analysts have characterised as a demanding valuation.
The core tension for PANW is that its AI growth story commands a significant valuation premium, and any indication — however subtle — that the pace of expansion may moderate can produce outsized price corrections. Commentary around a so-called trillion-dollar AI security gap may bolster the long-term thesis, but near-term sentiment appears to be focused on whether current multiples are justifiable in a higher-for-longer rate environment.
Shorting a high-quality, cash-generative business with genuine secular tailwinds is inherently risky. PANW has demonstrated an ability to recover sharply from drawdowns, and a positive news catalyst in the cybersecurity space could move the stock swiftly against a short position.
4. Autodesk (ADSK) – 12 technical sell signals
Price: $241.73 | Daily change: -2.41%
View the full technical analysis of Autodesk
Autodesk enters the list with 12 bearish signals against 3 bullish ones, and the stock’s recent price history tells a story of persistent selling pressure. Although the company posted stronger-than-expected cloud revenue growth and solid profitability in its most recent results, investors focused on a cost outlook that fell short of expectations, triggering a decline of nearly 4% on the results day in late August. The pattern of beating on revenue while missing on cost or earnings guidance has weighed on sentiment repeatedly in recent months.
A notable feature of ADSK’s recent tape is the combination of below-average trading volumes on down days and an apparent lack of sustained buying conviction. Earlier in September, a session that saw volume running around 70% below normal still produced downward price movement, which is a technically significant signal suggesting a fragile bid. The subsequent rebound attempt following the announcement of a capital return programme provided temporary relief, but the stock has since struggled to maintain those gains.
Traders should note that Autodesk operates in a sector — design and engineering software — where AI-related announcements can rapidly shift market sentiment. The stock’s exposure to the construction and manufacturing cycles also means macro data releases could act as a near-term catalyst in either direction.
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 the list with 12 sell signals and 6 bull signals — the most balanced bear-to-bull ratio among today’s candidates, which warrants some caution in interpreting the bearish case. The stock’s daily decline is also the smallest of the five at under 1%, reflecting a slower-moving but persistent downtrend rather than an acute selloff. The company, best known for its premium beer portfolio, has been underperforming the broader consumer defensive sector over the past year, even as management reaffirmed its full-year outlook and outlined a refined growth strategy in mid-September.
The contrast between management’s confident messaging and the stock’s relative underperformance is notable. Constellation has been navigating shifting consumer preferences in the beer category alongside broader pressure on discretionary alcohol spending. While the business remains cash-generative, analysts have pointed to valuation concerns, noting that the stock does not appear obviously cheap relative to its growth profile.
The relatively elevated bull signal count of 6 suggests that not all technical indicators are aligned to the downside, and with management reaffirming guidance, a positive inflection in consumer trends could challenge the short thesis. Investors considering this name from the short side should be mindful that consumer staples stocks can be relatively defensive in broader market downturns, which may limit short-side returns even if the thesis is directionally correct.
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 and cannot predict future performance with certainty. Short selling involves significant risks, including potentially unlimited losses. Always conduct your own due diligence and consult a qualified financial adviser before making any investment decision. The Wall Street Stock Investors Club and its contributors may or may not hold positions in the securities mentioned.