Each week our technical scanner evaluates every stock in the S&P 500 and Nasdaq 100, tallying bullish and bearish indicator readings across momentum, trend, volume and volatility models. Stocks with the highest concentration of bearish signals relative to bullish ones rise to the top of our short-candidates list. For 6 October 2026, five names stand out as carrying the most technically deteriorated profiles in large-cap US equities.
Important risk warning: Short selling is a strategy with theoretically unlimited loss potential. Unlike buying a stock, where your downside is capped at your initial investment, a short position can move sharply against you if the stock rallies. Margin requirements, hard-to-borrow costs and sudden news-driven squeezes can amplify losses significantly. The analysis below is purely technical in nature and should not be construed as a recommendation to sell short any security. Always consult a qualified financial adviser and ensure short selling is appropriate for your personal risk tolerance and investment objectives.
1. Leidos (LDOS) – 13 technical sell signals
Price: $133.78 | Daily change: -3.88%
View the full technical analysis of Leidos
Leidos scores the joint-highest bearish reading in today’s scan, with 13 sell signals against just 3 bull signals. The stock shed nearly 4% on the session, continuing what has been a volatile year for the defence and technology contractor. From a chart perspective, the pattern of lower closes relative to the broader market is a recurring theme — on multiple recent occasions LDOS has fallen on days when the S&P 500 was positive, a classic sign of relative weakness.
On the fundamental side, the picture is mixed. Leidos secured a notable $301 million, five-year US Army cybersecurity contract in August, which bolsters revenue visibility and backlog. The company has also made a board-level appointment, adding a senior AT&T executive as a director. However, a review of Q2 earnings in the context of the broader defence contractor peer group suggests the company’s performance was not among the sector’s standouts this reporting season.
The divergence between a reasonable operational backdrop and persistent price underperformance is worth monitoring. Technically, the combination of trend, momentum and volume signals is broadly negative, and the stock’s inability to hold gains on positive news days reinforces the bearish case from a purely chart-driven perspective.
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 with 13 bearish technical signals, but its daily decline of just over 5% makes it the weakest price performer in today’s list. OMC carries a moderately higher bull signal count of 6, suggesting some internal support, but the weight of bearish evidence currently dominates. The advertising and communications giant has delivered a respectable 38% total return over five years, but recent price action suggests that run may be facing meaningful headwinds.
The company has been noted as a chronic underperformer relative to the broader communications services sector over the past year, which is reflected in the chart’s deteriorating relative strength. Omnicom has been positioning itself around AI-driven transformation of its advertising and marketing services, a strategic pivot that may take time to manifest in financial results — and markets appear to be growing impatient.
The stock’s elevated return on equity, partly driven by debt leverage, is a double-edged sword: it flatters profitability metrics while adding financial risk. Technically, the 5% single-session drop will have breached multiple short-term support levels, and traders will be watching closely to see whether buyers step in or the selling pressure accelerates.
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 today’s most dramatic mover, dropping more than 9% in a single session despite holding the same 13-signal bearish score as the two stocks above. What makes this particularly striking is the context: PANW had surged more than 20% in the preceding month, driven by strong sentiment around AI-enabled cybersecurity demand. Today’s session appears to represent a sharp reversal of that near-term momentum, with only 3 bullish signals providing little technical support.
The valuation question has been central to analyst debate. Multiple commentators have raised the issue of whether PANW’s growth trajectory — while impressive — can sustain a premium multiple as cost pressures rise and competition intensifies. The company is actively transitioning from a product-led model to a broader cybersecurity platform strategy, which brings both opportunity and near-term earnings complexity as it relates to revenue recognition and customer consolidation.
Technically, a nearly 10% single-day decline after a multi-week surge is characteristic of a distribution phase, where earlier buyers take profits and momentum reverses. With the stock having already retreated meaningfully from recent highs, the technical picture now aligns with the caution implied by the scanner’s bearish signal count. Investors should be aware that high-volatility names like PANW can stage equally sharp recoveries.
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 technical signals against just 3 bullish readings — a ratio that places it firmly in deteriorating technical territory. The stock has shed roughly 23% from its late-August peak, a sustained decline that has understandably attracted value-oriented commentary. Some analysts point to a free cash flow yield that compares favourably to the S&P 500 median, and the stock drew additional attention after Schneider Electric announced a large acquisition in the software sector, lifting sentiment briefly in pre-market trading.
However, a single-session bounce in sympathy with sector news has not been enough to reverse the underlying trend. The Schneider-PTC deal drove a 3.6% pre-market gain in ADSK on the theory that sector consolidation could benefit the company, but the stock still closed lower on the day — a telling sign of persistent selling pressure overcoming positive catalysts.
From a technical standpoint, a stock that falls more than 20% over six weeks while generating 12 bearish scanner signals is exhibiting a broad breakdown across multiple indicators — likely including trend, momentum and moving-average measures simultaneously. The 3-bull-signal reading suggests very limited internal support at current levels, and the pattern of failed recoveries is a hallmark of sustained distribution.
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 and 6 bullish ones — the highest bull count in the group, hinting that some stabilising forces may be at work even as the dominant signal remains negative. The beverage alcohol company has been under considerable pressure, having recently touched a 52-week low of $111.54 before today’s session. The broader selloff has pushed the dividend yield above 3.6%, prompting income investors to weigh whether the payout is secure.
The near-term fundamental picture is challenging. Q1 revenue came in at $2.43 billion with earnings per share of $3.80, but markets have focused on restructuring concerns and declining earnings expectations for Q2. Commentary from prominent financial media figures has attempted to look past the headline numbers ahead of the earnings report due today, but the stock’s inability to rally on ostensibly mixed-to-acceptable results reflects a market that has re-rated its expectations for the company meaningfully lower.
Technically, a stock setting 52-week lows while accumulating 12 bearish scanner signals is exhibiting classic downtrend behaviour. The relatively higher bull signal count of 6 could indicate an oversold condition developing, which is a meaningful risk factor for any short position. Contrarian buying interest and potential earnings-driven volatility make this the highest-uncertainty name on today’s list from a short-selling perspective.
Disclaimer: This article is produced for informational and educational purposes only and does not constitute investment advice, a solicitation or a recommendation to buy or sell any security. Technical analysis is one tool among many and does not guarantee future price performance. Short selling involves significant risks, including the potential for unlimited losses. Past scanner readings are not indicative of future results. Always conduct your own due diligence and consult a regulated financial adviser before making any investment decision. The Wall Street Stock Investors Club and its contributors may hold positions in securities mentioned.