Each trading day, our technical scanner evaluates every stock in the S&P 500 and Nasdaq 100 across a broad range of momentum, trend, and oscillator indicators, tallying bullish and bearish signals for each name. Today, 26 October 2026, we present the five stocks that have accumulated the highest number of technical sell signals — names that technically inclined investors may wish to examine as potential short candidates.
Important risk warning: Short selling is a high-risk strategy. Unlike a long position, where losses are capped at the amount invested, a short position carries theoretically unlimited downside if the stock rises. Margin requirements, short squeezes, and unexpected positive catalysts can all amplify losses significantly. The analysis below is purely technical in nature and should not be treated as a recommendation to sell or short any security. Always conduct 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, the Reston-based defence and technology contractor, sits at the top of today’s bearish leaderboard with 13 sell signals against just 3 bull signals — and a sharp single-session decline of nearly 4% underscores the technical weakness. The stock has been volatile throughout the autumn, with multiple sessions registering moves that lagged the broader S&P 500, a pattern that can indicate fading relative strength.
On the fundamental side, the picture is mixed. Jefferies downgraded the stock to Hold back in June, citing a less compelling risk/reward profile, while more recent coverage has highlighted the shares as a potential value opportunity — suggesting analysts themselves are divided. A new contract award from the Naval Health Research Center was announced in late October, which offers a modestly positive operational backdrop, but has done little to arrest the technical deterioration.
With 13 bearish signals registered today and the price having shed ground even as the broader market recovered on several recent occasions, technically oriented investors will be watching key support levels closely. The elevated bear-to-bull signal ratio of more than four-to-one warrants attention, though traders should remain mindful that defence contractors can re-rate quickly on contract news.
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, one of the world’s largest advertising and marketing services holding companies, matches Leidos on 13 technical sell signals, though it carries a slightly higher 6 bull signals. The stock fell more than 5% on the day, making it one of the steeper single-session declines on today’s watchlist. That move is particularly notable given that it followed the company’s third-quarter earnings release just days earlier.
Omnicom’s Q3 results were broadly constructive from a fundamental standpoint. The company reported organic revenue growth above 7%, with integration synergies and media-related activity helping to expand margins. Sell-side analysts at Barclays and Rothschild & Co Redburn made modest downward adjustments to their price targets, while the overall analyst consensus remained broadly positive. Goldman Sachs had previously initiated coverage with a Buy rating earlier in the year.
The disconnect between improving operational metrics and deteriorating technical signals is worth noting. It may reflect broader sector rotation away from advertising names, or profit-taking following the earnings-driven rally in late September. Technically, the sharp drop to $81.76 — well below some recent trading ranges — shifts the burden of proof back to the bulls, at least in the near term.
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 attention-grabbing entry on today’s list, with a single-session decline of more than 9% — an unusually large move for a mega-cap technology name. The cybersecurity giant registers 13 technical sell signals and only 3 bull signals. The sheer scale of today’s selloff will have triggered stop-losses and momentum indicators across multiple timeframes simultaneously, which likely explains the intensity of the bearish signal count.
The recent news flow illustrates just how quickly sentiment can shift in high-valuation growth stocks. As recently as 23 October, PANW surged more than 7% in a single session on AI-driven cybersecurity optimism, closing above $380. Today’s price of $328.48 represents a retracement of a significant portion of that gain in just three trading days. Prominent analyst Dan Ives had flagged the stock as a key cybersecurity beneficiary of rising AI-related IT budgets, while commentary from Seeking Alpha raised concerns about valuation even within a compelling growth narrative.
This kind of violent two-way price action — sharp spikes followed by steep reversals — is characteristic of stocks where sentiment and momentum, rather than fundamentals alone, are driving short-term price discovery. Potential short sellers should be especially cautious here: the same dynamics that produce rapid declines can generate equally swift recoveries.
4. Autodesk (ADSK) – 12 technical sell signals
Price: $241.73 | Daily change: -2.41%
View the full technical analysis of Autodesk
Autodesk, the design and engineering software specialist, earns fourth place with 12 technical sell signals and just 3 bull signals. The stock has endured a difficult stretch over recent months, repeatedly closing below the broader market on down days — a pattern that signals weakening relative strength and tends to attract further selling pressure from momentum-oriented traders.
The fundamental backdrop has been clouded by concerns about forward guidance. Earlier in the year, management’s conservative profit outlook — partly attributable to costs associated with the MaintainX acquisition — disappointed investors who had grown accustomed to consistent upside surprises. More recently, some analysts have argued the shares may be trading below intrinsic value on a discounted cash flow basis, with one estimate suggesting they could be as much as 39% undervalued. However, a Zacks Hold rating reflects the ambivalence that pervades analyst opinion on the name currently.
Today’s 2.41% decline, combined with a 12-to-3 bear-to-bull signal ratio, suggests that technical selling pressure has not yet run its course. The stock has been rangebound in the low-to-mid $240s in recent sessions, and a failure to establish support in this area could attract further downside attention from technically driven participants.
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, the beverage alcohol group behind a portfolio of beer, wine, and spirits brands, rounds out today’s list with 12 technical sell signals and 6 bull signals — the most balanced bear/bull ratio on the list, suggesting the technical picture here is somewhat less clear-cut than for the other four names. Today’s decline was a modest 0.98%, but the cumulative pattern of technical deterioration over recent months is what places the stock here.
The fundamental story has been turbulent. The shares hit a near 52-week low in late September, pushing the dividend yield above 3.5% and prompting questions about the sustainability of income payments. Goldman Sachs, while remaining constructive on the stock, reduced its price target meaningfully. The company did deliver a stronger-than-expected second-quarter earnings report in early October, accompanied by the announcement of its acquisition of SpikedAde, a ready-to-drink spirit-based brand — moves that generated a short-lived rally.
Despite those positive developments, Constellation’s share price has struggled to sustain upward momentum, and the 12 bearish technical signals today indicate that sellers continue to hold the upper hand. With 6 bull signals also present, contrarian investors may see some value at these levels, but the technical trend currently favours caution rather than accumulation.
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