Stock Screener Settings for Beginners

A stock screener is a sorting tool, not a decision engine. It can narrow thousands of stocks into a research list, but the filters only matter if they match a clear question. Beginners usually screen for exciting charts or one flashy metric. A stronger process screens for business quality, valuation context, liquidity, and risk before anything goes on a watchlist.

Educational note: this is a learning and review framework, not personal tax, legal, trading, or investing guidance.

The simple framework

• ▸Start with the universe: country, exchange, market cap, and liquidity.
• ▸Add quality filters such as revenue growth, margins, debt, or cash flow only when they fit the strategy.
• ▸Use valuation filters as context, not automatic green lights.
• ▸Save rejected names and the rejection reason.
• ▸Move survivors into a watchlist with a written thesis and review trigger.

Example math

Imagine a screener returns 80 stocks after a market-cap and volume filter. Adding positive free cash flow narrows it to 45. Adding debt-to-equity below a chosen threshold narrows it to 28. That does not mean the 28 are attractive. It means they passed the first gate. The next step is reading filings, checking earnings quality, and comparing the current price to the actual business story.

What to write down

• ▸Source, date, and account or watchlist context.
• ▸The key number in dollars, percentages, or contract terms.
• ▸The assumption that would make the idea invalid.
• ▸Liquidity, tax, broker, or platform details that need current-source review.
• ▸The next review date and the reason for reviewing.

Common mistakes

• ▸Using too many filters until only curve-fit names survive.
• ▸Using one valuation ratio without checking sector, growth, margins, and balance sheet risk.
• ▸Ignoring liquidity and ending up with names that are hard to enter or exit.
• ▸Letting the screener replace a written stock thesis.
• ▸Never reviewing whether past filters actually produced useful watchlist candidates.

Bucko workflow

Use Bucko as an education, research, journaling, guardrail, scenario-analysis, and review workspace. Keep the decision user-directed: Bucko can help organize assumptions, notes, screenshots, checklists, and review triggers, but the user still owns the final decision and follow-up review.

Practical checklist

• ▸Name the decision before changing anything.
• ▸Record the key number in dollars, percentages, or R-multiple.
• ▸Save the source documents, screenshots, or account records used.
• ▸Define the review trigger before conditions get emotional.
• ▸Recheck the plan on a calendar instead of only after stress.