Our technical scanner runs daily across the S&P 500 and Nasdaq 100, scoring each stock on a broad set of momentum, trend and volume indicators. Today, 15 October 2026, we highlight the five names that have accumulated the highest number of bearish technical signals. A high bear score does not guarantee a decline, but it does suggest that the technical picture is deteriorating and that the stock may warrant closer scrutiny from those with a short or defensive bias.
Important risk warning: Short selling carries significantly greater risk than buying shares. Losses on a short position are theoretically unlimited, margin calls can force premature exits, and a single piece of positive news can trigger a sharp short squeeze. These names are presented purely as technical observations, not as recommendations. Always manage position sizing carefully and consider stop-loss orders before initiating any short trade.
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 leaderboard with 13 sell signals against just 3 bull signals, and Thursday’s sharp drop of nearly 4% underscores the weakening momentum. The stock has been a serial underperformer relative to the broader market in recent weeks, closing well below the S&P 500’s daily moves on multiple occasions in September and October. That pattern of persistent relative weakness is one of the more telling signals our scanner captures.
On the news front, the picture is mixed at best. While one analyst outlet recently described Leidos as a strong value proposition, value labels can persist for a long time before the market agrees — and in a technically deteriorating name, that distinction matters. The company did report Q2 earnings broadly in line with defence sector peers, and it closed a security screening joint venture in Australia, but neither development appears to have provided lasting price support.
The combination of a steep single-day loss, a trend of lagging the index, and 13 independent bearish technical signals makes LDOS the most technically compromised name on our list today. Investors holding long positions may wish to review their stop levels, while those considering a short should be mindful that defence contractors can re-rate quickly on contract announcements.
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 matches Leidos on bear signals but posts the largest single-day percentage decline on today’s list, falling more than 5%. The stock has been drifting lower for several weeks, and the broader context of a challenged advertising market is not helping sentiment. Our scanner’s 13 bearish readings — set against 6 bull signals — suggest that selling pressure remains broadly distributed across multiple timeframes and indicator categories.
The competitive landscape is a growing concern for the traditional agency model. Recent commentary has drawn pointed comparisons between Omnicom’s offering and that of technology-driven advertising platforms, raising questions about whether the company’s agency-centric business mix can keep pace with programmatic and AI-powered alternatives. That structural narrative, while not new, appears to be weighing more heavily on the stock as growth expectations are reassessed.
On a more positive note, the company’s health division recently garnered significant industry awards, and the stock did manage a modest gain in the prior session. However, those brief recoveries have not altered the prevailing downtrend. Investors should note that advertising stocks can be sensitive to macro data — any deterioration in consumer spending or corporate marketing budgets could amplify the existing technical weakness.
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 arguably the most striking entry on today’s list. A single-day loss of more than 9% on a stock that was trading close to $419 just weeks ago represents a substantial compression in market value. With 13 bearish technical signals and only 3 bullish ones, the scanner is reflecting a momentum reversal that deserves serious attention, even given the stock’s strong longer-term track record in the cybersecurity space.
The valuation backdrop adds further complexity. Commentary in recent weeks suggested that the AI-driven cybersecurity growth thesis had already been substantially priced into the stock at elevated levels. When a high-multiple growth stock begins to unwind from stretched valuations, the technical deterioration can be both rapid and persistent — a dynamic our indicators appear to be capturing in real time. It is worth noting that TD Cowen raised its price target to $440 earlier this month, which underscores the divergence between bullish fundamental views and the current technical breakdown.
The company continues to expand its partnerships, including a notable move into critical infrastructure cybersecurity with Anthropic. Fundamentally, Palo Alto remains a well-regarded franchise. However, for technically minded investors, the gap between where the stock was and where it is today raises questions about the near-term trajectory. Short positions in high-momentum growth names carry elevated squeeze risk, so caution is warranted.
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 and only 3 bullish ones, paired with a decline of around 2.4% on the day. The design and engineering software specialist has had a volatile year, with some analysts pointing to what they see as meaningful undervaluation relative to intrinsic value estimates, while the technical picture tells a more cautious story. This divergence between fundamental and technical views is something our scanner is specifically designed to surface.
From a news perspective, RBC Capital reduced its price target on ADSK earlier in the year, a move that reflected some of the uncertainty around the company’s transition to a subscription-based revenue model and its ability to sustain growth in a more selective enterprise spending environment. While Autodesk has previously demonstrated an ability to break above key moving averages following strong earnings reports, it does not appear that the most recent price action is benefiting from that kind of catalyst.
The company’s AI-related product announcements, including innovations showcased at its annual user conference, may provide medium-term fundamental support, but those developments have not yet translated into technical strength. With 12 sell signals in place, ADSK appears to be in a phase of distribution. Investors considering a short should be aware that software stocks can recover sharply around earnings releases.
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 today’s list with 12 bearish signals against 6 bullish ones, and while the daily decline is the most modest of the five at just under 1%, the technical backdrop is notably weak. The stock is trading below all three key daily exponential moving averages, a configuration that typically indicates a bearish bias across short, medium and longer timeframes simultaneously. That alignment across multiple timeframes is one of the more reliable patterns our scanner identifies.
The news flow has been somewhat more encouraging than the price action suggests. The company posted a second-quarter earnings beat in early October and announced a new brand partnership, the so-called SpikedAde deal, which gave the stock a brief lift of nearly 10%. However, that jump has faded, and the shares remain in technically compromised territory. Jim Cramer’s renewed interest in the stock following the earnings release has generated some media attention, though it is worth noting that such commentary does not alter the underlying technical picture.
Constellation operates in the alcoholic beverages space, where volume trends and consumer preferences can shift gradually. The company’s portfolio is weighted towards beer, a category that has faced some demographic headwinds. With the stock unable to hold above its moving averages despite a positive earnings catalyst, the path of least resistance technically appears to remain to the downside for now.
Disclaimer: This blog post is produced for informational and educational purposes only and does not constitute financial advice, a solicitation or a recommendation to buy or sell any security. Technical analysis identifies patterns in historical price data and does not guarantee future results. Short selling involves substantial risk, including the potential for 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.