Free Stock Scanners for Day Trading: Check the Feed Before the Filters
A free stock scanner can help prepare an intraday watchlist, but access cost does not establish data freshness or execution quality. Compare the exchange feed, session, timestamp and available filters before using a result. This is a feature and workflow comparison, not a tested ranking of trading performance.
Key Takeaways
- Separate permanently free access from trials that renew into paid subscriptions.
- Finviz’s current FAQ states a one-minute delay for regular-version US stock quotes; extended-hours access is an Elite feature.
- A TradingView chart’s exchange feed and subscription determine its coverage; a free chart is not proof of consolidated real-time prices.
- Relative volume describes activity, not the identity of traders or a guarantee of a narrow spread.
- Pineify’s fundamental screener and Market Screener serve different tasks; technical reference pages do not promise free live scans.
Compare what is actually included
Check each provider’s current access page and the timestamp on the screen. Avoid applying a single delay to every asset or assuming that a paid trial is a permanent free tier.
- Finviz: use the regular stock screener for supported US equities. Its official FAQ currently states a one-minute stock-quote delay and assigns premarket/aftermarket data to Elite. A trial can renew into a paid plan.
- TradingView: inspect the exchange symbol and data entitlement. US stock default data and subscribed primary-exchange feeds can differ, so compare the displayed feed with the broker you use.
- Pineify: the free fundamental stock screener exposes its supported company filters. Market Screener is a separate collection workspace with its own access conditions; an indicator explanation is not a live market-wide scanner.
Turn a filter into a reproducible question
Choose thresholds for the question being studied, not because they promise successful trades. A gap filter compares a current or session-opening price with a specified previous close. Relative volume needs a stated average window and session.
- A hypothetical 3% gap threshold describes price movement, not an earnings or news cause; verify the catalyst separately.
- RVOL above 2 means twice the selected baseline. It does not identify institutional buying or guarantee fills.
- ATR as a percentage of price describes past range. A wider range can increase both opportunity and loss.
- A low-float filter changes the risk profile; it can concentrate the list in names vulnerable to wide spreads, halts and large gaps.
Build a watchlist before evaluating an order
Use an exchange-aware time zone such as America/New_York rather than treating EST as a year-round label. Record whether the scan covers premarket, regular hours or a completed prior session.
- Save the screen time, feed, session, universe and exact thresholds.
- Check candidate news, recent corporate actions, spread, volume and available depth with appropriate sources.
- For a technical condition, open the same exchange symbol and timeframe on the chart.
- Keep stale or missing observations as unverified; do not replace them with zero or an assumed signal.
- A watchlist is a research output. Order type, size, fills and exits determine a different set of execution risks.
Where Pineify fits
The free fundamental screener is a starting point for supported company-level filters. Market Screener compares selected technical columns for a defined collection, with up to 100 symbols and 20 visible indicator columns. The visible collection refreshes on a 60-second schedule; this is not a guarantee of exchange-level latency.
- The public RSI Screener provides daily RSI readings for defined collections. Its response can be cached for up to four hours; it is not an intraday streaming scan.
- Check current access requirements on the product page. No claim is made that every Market Screener feature is free.
- Use technical reference pages to understand a field, not as evidence that a live scan ran.
- For custom chart logic, Pineify’s Coding Agent can draft Pine Script for chart-based conditions. Request a syntax check and review the resulting logic in TradingView. A successful syntax check does not establish profitable behavior, data availability or broker compatibility.
Check a screener result
Check 1
Confirm the symbol universe, timeframe, and data timestamp.
Check 2
Open the matching symbol and timeframe, then compare the reading with the original chart data.
Check 3
Record the rule and its invalidation condition before interpreting the candidate.
This page is for informational and educational purposes only and does not constitute financial advice. Day trading involves substantial risk of loss. Always manage risk strictly and verify live market prices before trading. Pineify is an information tool, not an investment adviser. No screener, indicator, or AI system can predict stock prices with certainty or guarantee a return.
Frequently Asked Questions
Which free scanner is best for day trading?
There is no tested winner here. Choose by supported symbols, session coverage, timestamps, available filters and whether the data matches your execution venue.
Is Finviz Free delayed by 20 minutes?
The current Finviz FAQ states a one-minute delay for regular-version US stock quotes. Do not apply old stock-delay figures or another asset’s delay to all data. Check the current notice before use.
Does free scanner access include premarket data?
Not necessarily. Finviz’s FAQ assigns extended-hours data to Elite. For every provider, check the feature and feed entitlement rather than assuming that an accessible page includes that session.
Does high relative volume guarantee liquidity?
No. Relative volume measures activity against a baseline. A stock can still have a wide spread, little displayed depth or a halt.
Does Pineify provide a free live scanner for every indicator?
This page does not establish that capability. Use the available fundamental screener, inspect Market Screener access separately and distinguish educational indicator pages from an interactive live scan.