Trade simulator
See how a trade changes your portfolio — before you place it
Simulate any buy or sell. See concentration shifts, sector exposure changes, new risk flags, and margin impact — in seconds. Because the best time to catch a problem is before it exists.
Simulation only · Does not place orders · Requires broker connection
You want to buy 50 shares of RELIANCE. It feels like a solid add. But you already own RELIANCE. And you own ONGC and BPCL too. Your energy sector exposure is already at 24%.
Will this trade push any single stock above 20%? Will your sector concentration cross the 40% warning line? Will your margin utilization jump to a risky level?
You don't know — because you can't see the after picture until after you've placed the trade.
What if you could see the consequences of a trade — before you commit a single rupee?
Before → After
One question. Full portfolio impact.
“What happens if I buy 50 shares of RELIANCE?”
Trade Impact — Buy 50 RELIANCE at ₹2,750
Before
RELIANCE weight: 15.2%
Top-3 concentration: 42%
Energy sector: 24%
Risk flags: 0
After
RELIANCE weight: 22.1% ⚠
Top-3 concentration: 48%
Energy sector: 28%
Risk flags: 1 — stock above 20%
What changes
Every dimension of portfolio impact
Concentration change
See how the trade shifts your single-stock weight, top-3 concentration, and HHI (diversification index). "Adding 50 shares of RELIANCE takes it from 15% to 22% of your portfolio."
Sector shift
Will this trade overweight banking? Add more IT exposure? See sector allocation before and after.
New risk flags
Crosses the 20% single-stock threshold? Sector goes above 40%? The simulator flags risks that didn't exist before the trade.
Margin impact
How does this trade affect your available margin? Will it push margin utilization into the warning zone?
Works for buys, sells, and partial exits
“What happens if I sell half my TCS?” — see how your concentration drops, which sector loses weight, and whether your portfolio health score improves. Works for adding new positions, averaging up, scaling out, or complete exits.
Simulate your next trade before placing it. One question, full impact.
Try it in PortoAIWorks with
Simulate, then decide
Real users, real portfolios
Trusted by real investors
“Spent two hours researching a stock last month. This week I asked PortoAI about a similar company and had everything in two minutes. Revenue, margins, peer comparison, and whether it even fits my portfolio. I'm not going back to doing it manually.”

Priya Sharma
Long-term investor · Bengaluru
“Bad day, portfolio deep red, I was about to double down on a losing position. Got a revenge trade warning. I was annoyed but I closed the app and went for a walk. That stock dropped for another week straight.”

Anil Kumar
Options trader · Mumbai
“I used to keep Screener, TradingView, and Zerodha open in three tabs. Now I just ask PortoAI. Fundamentals, technicals, risk check, place the order. Haven't opened Screener in weeks.”

Ravi Mehta
Investor · Delhi
Trade simulator FAQ
Real-time data, metrics, orders, and simulation scope.
Is the simulation based on real-time data?
What metrics change in the simulation?
Does simulating a trade actually place an order?
Can I simulate both buys and sells?
The best time to catch a portfolio problem is before it exists.
Simulate any trade. See the impact on concentration, sectors, and risk — before you commit.
No tips · No auto-trading · You confirm every order