> ## Documentation Index
> Fetch the complete documentation index at: https://docs.askfutures.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Opening-range breakout (MNQ)
> Build a 15-minute opening-range breakout on Micro Nasdaq, then refine it to trade only when the range is wide.
**The hypothesis:** many traders believe the first 15 minutes of the session set
the tone for the day. A break above that opening range can signal real intent —
and a small range might just be noise, while a wide one suggests stronger
conviction. In this beginner tutorial you'll build that breakout, backtest it,
then add one filter that only trades on a wide opening range.
Past performance does not guarantee future results. Always test before you trade.
## Build it
Open [askfutures.com](https://askfutures.com) and sign in. New here? Create
an account and start your free trial first — the
[quickstart](/get-started/quickstart) walks through it.
Paste this prompt exactly and send it:
```text Your prompt theme={null}
Buy Micro Nasdaq when price breaks above the first 15-minute high,
and exit if it closes back below the midpoint of that range
```
You don't have to mention bars, dates, or directions. Because this is a
day-trading idea, AskFutures applies its defaults — last 1 year, 1-minute
bars — and adds an **end-of-day exit**, so any open trade closes at the
session close. It tells you each assumption it made.
AskFutures turns your sentence into precise rules. The **strategy card** shows
the entry (a break above the first 15-minute high), the exit (a close back
below the range midpoint), and a **Strategy Flow** chart of the logic. See
[strategies](/concepts/strategies) for what each part means.
The backtest tab shows the equity curve and the headline numbers — net P\&L,
win rate, and drawdown — over the last year of real prices, net of modeled
slippage and commission. Look at the shape of the equity curve, not just the
final number: is it a steady climb or a few lucky days? See
[run and read a backtest](/guides/run-and-read-a-backtest).
Now test the "intent" idea. A small opening range might be noise; a wide one
suggests the move has fuel behind it. Add one filter — send this:
```text Refine it theme={null}
Trade only if the opening range is over $400
```
AskFutures keeps everything else and adds the filter as a new saved version.
Compare the two equity curves: did filtering for a wide range thin out the
noise, or just cut your trade count? See
[version and compare](/guides/version-and-compare).
These results are **hypothetical and simulated** — no real trades were placed.
Because no order actually hit the market, results may under- or over-state live
outcomes. Past performance, actual or simulated, does not guarantee future
results. Always test before you trade.
## What you learned
You took one plain-English sentence to a full strategy and backtest, then tested
a hypothesis — *wide ranges show intent* — by adding a single filter and
comparing. That Describe -> Strategy -> Backtest -> Refine loop is the whole game.
## Next steps
One mean-reversion rule, no indicators required.
Phrasing patterns for adding filters and changing exits.