Reading the ATR to Decide Which PBT Bots Should Be Running This Week

Every PBT bot works differently depending on what the market is doing that week. Run a breakout bot into a dead, range-bound session and it chases fake moves. Run a mean-reversion bot into a trending week and it fades a trend until the drawdown gets uncomfortable. The variable that separates a good week from a bad one usually isn't the bot — it's whether the bot you turned on actually matches the volatility regime you're trading into.

Average True Range (ATR) is the simplest read on that regime, and you don't need to code anything to use it. It's a built-in NinjaTrader indicator that measures how much a market is moving, high to low, averaged over a lookback period. Pull up a daily ATR(14) on NQ, ES, or MES at the start of the week, compare it to where it's been sitting the last month, and you have a fast answer to the question that actually matters before you open the Bot Portfolio Builder: is this an expansion week or a chop week?

What ATR Is Actually Telling You

ATR doesn't tell you direction — it tells you range. A rising ATR means bars are getting bigger: more points between the high and low of each session, more room for a move to run once it starts. A falling or flat ATR means the opposite: tight sessions, small swings, price grinding sideways inside yesterday's range. Neither reading is good or bad on its own. It's only useful once you line it up against what each bot is actually built to do.

Matching Bots to the Reading

This is where the 4.5 years of backtest data behind PBT's bot lineup earns its keep — it shows which strategies hold up in which regime, instead of guessing.

• Rising ATR, trending open: ORB and the 10 EMA bot want this. ORB needs a real breakout out of the opening range to follow through instead of snapping back, and the 10 EMA bot needs a sustained push to ride a pullback into. Both tend to underperform when ATR is compressed and every breakout gets sold right back into the range.
• Low, compressed ATR: NR7 is built for exactly this — it's named for trading the narrowest range of the last seven sessions, on the logic that compression precedes expansion. The Scalper bot also tends to do better here, taking fast, small-target trades inside a tight range instead of waiting on a breakout that compression is actively suppressing.
• Elevated ATR after an extended push: Snapback wants this setup specifically — a market that's stretched far enough, fast enough, to mean-revert, which needs some real range to work with. Too quiet a tape and there's no extension to fade.
• Volume Spike: less about the ATR reading itself and more about participation — but a volatility expansion and a volume expansion usually show up together, so a rising ATR is often your heads-up that Volume Spike setups are about to get more frequent, not less.

Turning This Into a Weekly Routine

You don't need a new indicator or a manual override to act on this — the bots stay fully automated either way. What changes is which ones are enabled in the Bot Portfolio Builder before Monday's open. A five-minute Sunday check — ATR(14) against its 20-day average on your main instrument — tells you whether this is a week to lean into ORB and 10 EMA, or dial back toward NR7 and Scalper while things are compressed. Running all 13 bots regardless of what the range is doing isn't automation, it's just noise with extra steps — and it's the fastest way to turn a quiet week into a string of stopped-out breakout trades.

Check the Bot Portfolio Tracker midweek too. If ATR shifts meaningfully from where it was Sunday — a compression regime suddenly expands on a Fed headline, say — that's your signal to revisit which bots are live, not to override a trade in progress. The read changes faster than most traders check it; the bots don't need to.

The Discipline Part

This is a small habit, but it's the same discipline that keeps a funded account alive past the evaluation: reading the market before you decide what to run in it, instead of running everything and hoping the backtest bails you out. Whether you're trading a personal account or managing the daily loss limits on an Apex, Lucid, BluSky, or TakeProfit funded account, matching bot selection to the actual regime is free risk management that costs five minutes a week.