Last updated: September 2026. Editorial Team — researched using data from Schaeffer’s Investment Research and fffinstill’s quantitative screening analysis. See “Sources & Methodology” for our full source list.

Quick Answer

A rigorous quantitative screen for genuine short squeeze candidates, filtering 2,375 US stocks for short interest of at least 15% of float, market cap above $1 billion, a Piotroski F-Score of 6 or higher, positive year-over-year revenue growth, and an improving fundamental Health Score, identified only 7 stocks that passed all six filters: UiPath, Sonic Automotive, Brinker International, EPAM Systems, Freshpet, Qualys, and Alexander’s. Loosening the health-improvement requirement to any positive quarterly change added 5 more names, including The Trade Desk and Duolingo.

Why Most Short Interest Screens Miss the Real Signal

The screening methodology behind this list makes an important distinction most simpler short-interest rankings skip entirely: a genuine short squeeze needs two things together, heavy short positioning and a real, fundamental reason for those shorts to be wrong. High short interest alone is a weak signal on its own, since plenty of heavily shorted stocks are heavily shorted precisely because their underlying business genuinely is deteriorating. The screen’s additional fundamental filters, Piotroski F-Score, revenue growth, and improving Health Score specifically, are designed to isolate cases where short sellers may be increasingly out of step with a company’s actual improving trajectory, rather than simply flagging any stock with a high shorted-share percentage.

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The Genuine Paradox in This Kind of Screen

The analysis surfaces a specific, counterintuitive finding worth understanding directly: Qualys posted the strongest Health Score on the list at 80.8, yet the analysis identifies it as the least likely candidate to squeeze violently, precisely because its fundamentals are strong enough that short sellers can rationally continue holding their positions and absorb some ongoing pain rather than being forced to cover. By contrast, names where shorts appear to be more visibly and obviously wrong on the fundamentals, specifically UiPath, Freshpet, and Sonic Automotive in this screen, tend to generate more genuine panic-driven covering than companies that are simply, quietly compounding steady improvement. The underlying logic: squeezes require panic among short sellers, not just being fundamentally incorrect about a company’s direction.

A Real-World Caveat on Timing

It’s worth understanding a specific limitation in how this kind of data actually gets reported and used. Short interest itself is only a snapshot in time; FINRA reports short interest figures twice per month, meaning positions can shift substantially in the interim between official reports. A screen built on the most recent available FINRA data, however rigorously constructed otherwise, is necessarily working with information that may already be somewhat stale by the time an investor actually acts on it — a genuine structural limitation of short-interest-based analysis generally, not a flaw specific to any single screening methodology.

The Bond Yield Backdrop Shaping Broader Short Activity

Schaeffer’s Investment Research’s own separate short squeeze coverage adds important macro context for interpreting elevated short-selling activity broadly this month: short sellers have been particularly active recently, especially as bond yields have gripped the broader market. That’s a meaningful detail connecting individual stock-level short positioning to the same broader rate environment discussed elsewhere in our coverage this month — elevated Treasury yields and a recent Fed rate hike appear to be encouraging more aggressive short positioning across the market generally, not just in isolated, stock-specific situations.

Why “Days to Cover” Matters as Much as Raw Short Interest

Beyond the raw percentage of float sold short, sophisticated short-squeeze analysis typically weighs a related, complementary metric: days to cover, which estimates how many trading days it would take short sellers to buy back their entire position at typical daily trading volume. A stock with extremely high short interest but also extremely high daily trading volume can absorb short covering relatively smoothly, without necessarily producing a sharp, dramatic price spike, while a stock combining high short interest with genuinely thin daily volume creates conditions where even modest buying pressure can force outsized covering-driven price moves.

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The Broader Historical Pattern Worth Remembering

Short squeezes gained mainstream public attention in 2021, when coordinated retail trader activity on Reddit and other social media platforms drove dramatic, headline-grabbing price surges in heavily shorted names like GameStop and AMC Entertainment. That episode remains a useful reference point for understanding both the genuine potential and the real limitations of short-squeeze-driven trading strategies: squeezes can generate outsized, rapid returns for well-timed traders, but they typically don’t last long, and timing entry and exit around them carries genuinely elevated risk compared to conventional fundamentals-driven investing approaches.

What This Means for Investors Considering Short Squeeze Strategies

• Fundamental improvement, not just short interest alone, is the more reliable signal: Screens combining short interest with genuine, measurable fundamental improvement filter out a meaningful share of value traps that simpler short-interest-only rankings would flag.
• The strongest fundamental names may squeeze least dramatically: Paradoxically, companies with the clearest improving fundamentals sometimes generate less panic-driven short covering than companies where shorts are more obviously, visibly wrong.
• Short interest data has a built-in reporting lag: With FINRA reporting only twice monthly, any short-squeeze screen should be understood as a snapshot subject to meaningful change before an investor can actually act on it.

Frequently Asked Questions

Which stocks passed a rigorous short squeeze screen this month?

Seven stocks passed all six filters: UiPath, Sonic Automotive, Brinker International, EPAM Systems, Freshpet, Qualys, and Alexander’s, with the screen requiring short interest above 15% of float alongside improving fundamentals.

Does high short interest alone predict a short squeeze?

No. Analysts emphasize a genuine squeeze needs both heavy short positioning and a real fundamental reason for shorts to be proven wrong, since many heavily shorted stocks are shorted because their business is genuinely struggling.

Why might the strongest fundamental stock be the least likely to squeeze?

Strong fundamentals can let short sellers rationally hold their positions and absorb losses, since squeezes require panic-driven covering, not simply being on the wrong side of a company’s improving trajectory.

How often is short interest data updated?

FINRA reports short interest figures twice per month, meaning positions can shift substantially between official reports, adding a built-in lag to any short-interest-based screen.

Sources & Methodology

This article draws on data and analysis from: fffinstill’s September 15, 2026 short squeeze candidate screen of 2,375 US stocks; Schaeffer’s Investment Research’s September 2, 2026 coverage of short squeeze potential amid rising bond yields; and U.S. News’ broader explainer on short squeeze mechanics and historical examples. Figures reflect the most recently published data as of this article’s last-updated date and are subject to change as short interest is updated.

This article is for informational purposes and does not constitute investment advice. It is not a recommendation to buy or sell any security mentioned.