Most traders set their stop losses in the wrong place. They pick a round number below their entry, or worse — they use a fixed dollar amount that has nothing to do with how the stock actually moves.

Average Daily Range (ADR) fixes that. It anchors your stop to the market's real volatility, so you're not stopped out by noise — and you're not risking more than the trade warrants.

Here's what ADR is, how to calculate it, and how to use it every time you size a trade.

What Is ADR in Trading?

ADR stands for Average Daily Range. It measures how many points or dollars a stock typically moves from its high to its low over a given period — usually 5, 10, or 20 days.

ADR = Average of (Daily High − Daily Low) over N days

If a stock's daily range over the last 10 days averaged $2.40, its ADR is $2.40. That's how much it moves on a typical day — from top to bottom.

Why ADR Matters for Stop Losses

If a stock moves $2.40 on an average day, placing a stop $0.20 below your entry means you'll be stopped out by normal intraday noise almost every time. You're not wrong about the trade — you're just sized wrong relative to how the stock actually moves.

A better rule: your stop should be a fraction of ADR, not an arbitrary dollar amount.

Common approaches:

ADR Stop Loss — Real Example

Let's say you're trading NVDA:

NVDA Trade — ADR Stop Calculation
ADR (10-day)$18.50
Entry price$875.00
25% of ADR$4.63
Stop level$870.37

Now you have a stop that reflects how NVDA actually trades — not a guess, not a round number. It's a stop that gives the trade room to breathe through normal volatility without handing back more than you need to.

Combining ADR with Position Sizing

Once you have your ADR-based stop, you can calculate your exact position size:

Shares = (Account Risk $) ÷ (Entry − Stop)

If you're risking $200 on the trade:

Position Size Calculation
Account risk$200
Entry − Stop$4.63
Position size43 shares

This is exactly what RiskDesk calculates for you in seconds — ADR stop level, position size, and risk/reward — before you enter the trade. No spreadsheet, no mental math, no guessing.

Key Takeaways

  • ADR measures a stock's typical daily price range from high to low
  • Stops placed without ADR context are often too tight or too wide
  • Sizing your stop as a percentage of ADR keeps you in trades through normal volatility
  • Combining ADR stops with account-based position sizing gives you professional risk discipline on every trade