Stock Screening Tools That Go Beyond Price and Volume

Guerilla Finance · Updated August 2026

Traditional stock screeners filter by price, volume, market cap, and technical patterns. For event-driven traders in the small and micro-cap space, those dimensions are table stakes — everyone has them. The screens that create an actual edge filter by dilution risk, upcoming catalysts, government contract activity, supply chain exposure, and institutional positioning before any of those signals are priced in.

The limits of conventional screening

A stock screener that shows you "market cap under $500M, volume above 500K, RSI between 30 and 50" gives you a list that thousands of other traders are looking at simultaneously. The screen might find interesting stocks, but the information advantage is zero — you're seeing the same list as everyone else running the same filter.

The screens worth running for small-cap event-driven traders are the ones that require proprietary data that can't be downloaded from a standard financial data vendor:

• Companies with new shelf registrations in the last 30 days — A forward-looking dilution risk filter most screeners don't offer
• Biotech companies with PDUFA dates in the next 45 days and cash runway above 12 months — Filters out companies that are too financially stressed to survive a negative FDA outcome
• Small-cap defense companies with new contract awards in the last 60 days — A revenue signal most equity screeners have no access to
• Companies with insider buying clusters (3+ insiders buying) in the last 90 days — A higher-signal insider screen than simple "any insider buy"

Dilution screening: finding structurally clean names

One of the most powerful screens for small-cap long positions is the inverse dilution screen — finding companies that have zero shelf registration, no ATM agreement, no convertible note overhang, and no outstanding warrants trading in-the-money. These are the structurally clean names where a positive catalyst can create a sustained move because there's no dilutive selling pressure waiting to absorb the rally.

Inversely, before entering any long position in a micro-cap stock, screening for dilution risk tells you whether your thesis can work even if you're right on the catalyst. Being right on the PDUFA date means nothing if the company files a $50M ATM offering into your rally.

Biotech catalyst screening

The highest-return screens in biotech are forward-looking catalyst screens. Finding companies with a PDUFA date 30–60 days out that the market hasn't yet priced in (identifiable by low implied volatility relative to catalyst magnitude) is the fundamental biotech event-driven screen. Layering financial health filters (cash runway, burn rate, dilution risk) eliminates the companies that can't survive a negative outcome.

Supply chain exposure screens

Some of the most actionable small-cap screens involve supply chain relationship mapping. When a large-cap company announces a major capacity expansion or beats earnings significantly, their key suppliers — often small-cap companies — see direct revenue upside. The companies that win supply chain screen opportunities aren't obvious from price data; they're revealed by parsing SEC filings and material agreement disclosures.