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Day Trading Scanners the Top YouTube Traders Use for Premarket Gappers

What Does Premarket Scanners Require?

inputs

Live premarket quotes from about 4:00 a.m. ET, float, and premarket volume.

filters

Gap %, price range, premarket volume, relative volume, and float or market cap.

output

A short ranked list of gappers to check for a catalyst before the open.

frequency

Continuously from early premarket to the open, then on demand.

Scanner thresholds

  • Gap %: Humbled Trader's small-cap scan: up 10% or more from the close
  • Price: Her small-cap scan: $1 and up. Her large-cap Trend Join: above $3
  • Premarket volume: Her small-cap scan: at least 20,000 shares
  • Relative volume: Her small-cap scan: at least 1
  • Market cap: Small caps: $1 billion or less. Trend Join: at least $1 billion
  • Time of day: Run from early premarket; her report is ready about 8:40 a.m. ET

Which Educators Use Which Tools for Premarket Scanners?

ToolTheir pick forFromLink
Day Trade DashRoss Cameron$197/moCheck price
thinkorswimThe Rumers, Ricky Gutierrez, Adam Khoo, ZipTraderFreeCheck price
Finviz EliteAdam Khoo$39.50/moCheck price
Trade Ideas StandardHumbled Trader$127/moCheck price
Trade Ideas PremiumAIHumbled Trader$254/moCheck price
Interactive Brokers TWSHumbled Trader, Financial WisdomFreeCheck price
MarketSurgeInvestor's Business Daily (CAN SLIM)$149.95/moCheck price
Finviz FreeSame job, different toolFreeCheck price

Lowest listed plan shown. Prices checked 2026. Links marked Check price are affiliate links where a program exists. Prices are subject to change fast, like AI technology.

Which Scanner Settings Do the Educators Use?

Ross Cameron's five filters, Humbled Trader's gap scans, and IBD's CAN SLIM screen, copied number for number with the source for each.

Open the Scanner Settings Vault
  • Reddit

    r/Daytrading

    5 points · a trader on Reddit

    Fan
    “I use Trade Ideas. It alerts me as soon as a stock starts moving up and they have external linking so as soon as it alerts me, i click the ticker and it fills my chart platform and trading platform with that ticker and im ready to trade straight away”
    On: Trade IdeasView on Reddit
  • Reddit

    r/Daytrading

    9 points · a trader on Reddit

    Fan
    “I just use thinkorswim with top daily % gainers and a relative volume filter, it's free and works fine never had a prob”
    On: thinkorswimView on Reddit
  • Reddit

    r/Daytrading

    1 point · a trader on Reddit

    Fan
    “TC2000 has a great Scanner. I've been using it for a few years. It's similar to Trades ideas, but it's a $100 cheaper.”
    On: TC2000View on Reddit

Quoted word for word, typos included. Usernames left off. Threads checked live Oct 11, 2026. Opinions are the posters' own, not FullStack Alpha's.

Can AI Help With Premarket Scanners?

What AI can do

Summarize why each gapper is moving, pull the headline and filing behind it, and draft a watchlist note in your own template.

What AI cannot do

Stream live quotes or replace a real-time scanner. It reads what you feed it and can be wrong about the catalyst, so check the source.

See the workflow this task belongs to

How Do You Pick a Premarket Scanner Tool?

01

Start time

A premarket scanner is only as good as its first quote. Check when its data starts each morning, because a gapper you see at 8:30 is a gapper someone else saw at 7:00.

02

The filters you trade

Gap percent, price, float and relative volume are the core. If the tool can't save your exact filter set, you will rebuild it every morning and skip it on the busy ones.

03

News next to the ticker

A gap without a reason is a coin flip. A scanner that shows the headline beside the symbol saves you a tab and a minute per stock.

04

Alerts you can hear

Watching a list all morning is how you miss the one that moves. Audio or pop-up alerts on new entries let you look away and still catch it.

Mistakes That Cost Traders Money

  • Paying for speed you won't use

    If you trade the open twice a week, a free broker scanner covers it. The expensive tools pay off for people who trade every premarket session.

  • Trading the list, not the plan

    A scanner finds candidates. It does not tell you which ones fit your setup, so every hit still needs a catalyst, levels and liquidity check.

Want three tools matched to how you trade? Try a tool finder or build a full stack.

Premarket Scanners Questions

What is the best premarket scanner for day trading?

Among the educators on this site, Ross Cameron uses Day Trade Dash ($197/mo) and Humbled Trader uses Trade Ideas (Standard $127/mo, Premium $254/mo). The free route is thinkorswim's Stock Hacker for eligible Schwab clients, or the scanner inside Interactive Brokers TWS. A paid scanner buys speed and saved layouts, not better stock picks.

What scanner settings do day traders use for premarket gappers?

Humbled Trader's saved small-cap scan looks for stocks up 10% or more from the close, priced $1 and up, with at least 20,000 premarket shares and relative volume of at least 1. Ross Cameron's five filters include up at least 10%, relative volume at least 5x, and a price between $2 and $20. TraderTV Live filters by relative volume, price, and ATR before checking news.

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    Workflow Teardown

    One educator's routine taken apart: the scan, the chart, the tools, and the free swap for every paid one.

  4. 04

    Scan of the Week

    Exact scanner settings you can copy, pulled from the educator's own lesson with the timestamp.

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