An idea is a starting point
Backtest Any Trading Idea · for Grok
You have a trading idea.Put it to the test.
Describe your rules in plain English. Get a historical backtest, see the drawdowns, and test how the idea holds up on unseen periods.
Opens this bot’s listing on Grok. Connect your NexusTrade account to begin.
Buy SPY when its 50-day average is above its 200-day average. Sell when below. Test 2021–2026.
SPY 50/200 · Jan 2021–Jan 2026 · 0.1% stock fee per fill
Four separate out-of-sample folds. Historical simulation, not live performance. Weakest fold Sharpe: −0.015.
See the work, step by step
Your idea becomes rules. Then results.
Watch a plain-English SPY idea become buy/sell rules, a five-year simulation, and tests on four unseen periods.
Describe the rules. Inspect the return and the risk.
Recorded NexusTrade historical simulation: SPY 50/200, Jan 1, 2021–Jan 1, 2026, daily interval, 0.1% stock fee per fill. The four unseen-period results are separate test windows, not a compounded return. Historical results do not guarantee future performance. This is an illustrated workflow, not a Grok chat recording.
Explore a worked backtest ↗A short setup. Then your question.
Open the bot.
Make it yours.
The bot already has the workflow. Connect your account, then give it an assignment.
- Add Backtest Any Trading Idea
Open its listing on Grok and add the bot.
- Connect your NexusTrade account
Follow the sign-in prompt when the bot asks. Create a free account if you need one, then allow the connection.
- Start with a concrete request
Try: “Buy SPY when its 50-day average is above its 200-day average. Sell when below. Test 2021–2026.”
A few things to know.
What happens when I click Add?
You’ll open this bot’s public listing on Grok in a new tab. Add it there, then start a conversation. Grok handles access to its own product.
Do I need a NexusTrade account?
Yes. Sign in to NexusTrade when the bot asks you to connect. You can create a free account during sign-in. Your connector uses your account, not the bot creator’s account.
Is everything free?
Creating a NexusTrade account is free. Research, backtesting, and agent quotas depend on your NexusTrade plan; Grok access has its own requirements. The Premium offer is a separate subscription claim, not something adding the bot activates.
Can this bot trade for me?
This bot builds and tests strategy drafts. Its instructions prohibit placing orders or deploying a strategy to trade.
Backtest Any Trading Idea
Find out what your idea actually does.
Your next step opens the exact bot on Grok.