A real incident from live deployment every algo trader must understand
look at the careless reply from Tradetron
980 CE struck at 44.40
Today I faced something very dangerous in live deployment.
Not a strategy mistake.
Not a market mistake.
Not a coding mistake.
👉 A price feed mistake.
And this is the kind of issue that silently destroys accounts without the trader even realizing what happened.
What exactly happened?
I was running my live stock options strategy on Tradetron connected to broker Dhan.
- Dhan terminal price (true market LTP): ₹18–20 range
- Tradetron showing LTP: ₹44.40 (stuck)
- Strike: SHIRAMFIN 980 CE (illiquid strike)
Tradetron support replied:
“When the strike is illiquid, LTP does not get correctly updated.”
Why this is extremely dangerous for algo traders
Your entire algo logic depends on this:
IF price <= stoploss → EXIT
But what if…
- Market price falls from 44 → 20 → 15 → 10
- Platform still thinks price is 44.40
- Stoploss condition NEVER triggers
You are sitting peacefully thinking:
“My SL is safe. Strategy is under control.”
But in reality…
🔥 Your position is bleeding.
🔥 Your stoploss is blind.
🔥 Your algo is helpless.
This is not a strategy failure.
This is data feed dependency risk.
The myth: “Illiquid strike means price won’t update”
This is technically wrong.
Even in illiquid options:
- Trades happen
- Bid/Ask changes
- Broker terminal updates
- Chart updates
- Exchange updates
So why should an algo platform say LTP won’t update?
That is not a market issue.
That is a data handling / feed handling issue.
What happens to Stoploss in this situation?
When LTP is frozen:
- SL based on option premium → ❌ fails
- Target based on premium → ❌ fails
- Repair logic based on premium → ❌ fails
- Exit logic based on premium → ❌ fails
Only thing that works is manual intervention.
But we are doing AUTO trading to avoid manual intervention.
This is the irony.
Why I am safe (and why most traders are not)
I currently run 56 independent stock option strategies.
If this issue happens in 1 or 2 strikes:
It becomes an operational inconvenience.
But imagine:
- A trader running 1 big strategy
- 8 legs inside
- 30 lakh capital
- SL depends on option price
- Price freezes
That day can wipe months of profit.
The real lesson here (very important)
Never design algo risk management only on option premium.
Always have one of these as backup exit logic:
- Underlying spot movement exit
- Time-based universal exit
- Portfolio MTM SL
- Broker-side SL where possible
- Monitoring for LTP freeze situations
Because platform LTP is not the exchange LTP.
What you should immediately check in your strategies
- Are your SL/Target purely option-premium based?
- Do you trade illiquid strikes?
- Do you monitor mismatch between broker terminal and algo platform?
- Do you have a universal MTM SL?
- Do you have time exit as backup?
If 3 answers are “No” → you are exposed.
Paper trading and backtest will NEVER show this
This is why I always say:
Paper trading is a beautiful lie.
Live trading shows the ugly truth.
Backtest assumes perfect price feed.
Live market does not.
This is called Execution Risk, not Strategy Risk
Most traders focus on:
- Indicators
- Entries
- Exits
- Greeks
- Risk reward
Very few understand:
Platform risk
Data risk
Execution risk
Today was a textbook example.
Final message to serious algo traders
If you depend on any algo platform:
You must understand this truth:
Your strategy is only as reliable as the platform’s price feed.
Design your system assuming:
“One day LTP will freeze. What happens then?”
If you don’t have an answer, you are not fully protected yet.
Live markets don’t punish bad strategies first.
They punish hidden weaknesses first.
Today, one hidden weakness got exposed.
And that is why live deployment is the real teacher.
Madhu Babu — Retail Algo Trader | Tradetron Strategy Creator
Discover more from retailalgotrader
Subscribe to get the latest posts sent to your email.