A stop order is an instruction that becomes a market order once price reaches a specified trigger level. Unlike limit orders that execute at a specific price, stop orders are inactive until triggered, then execute immediately at whatever price is available. They’re primarily used for stop losses (protecting against large losses) and breakout entries (entering when price confirms a move).
- Dormant until price reaches trigger level
- Then converts to market order for immediate execution
- Used for: stop losses (exits) and breakout entries
How Stop Orders Work
Stop orders activate when price crosses your trigger:
Buy Stop (Breakout Entry):
- Current price: ₹100
- Buy stop at: ₹105
- When price hits ₹105 → becomes market buy order
- Fills immediately at ~₹105 (or current price)
Sell Stop (Stop Loss):
- Current price: ₹100
- Sell stop at: ₹95
- When price hits ₹95 → becomes market sell order
- Fills immediately at ~₹95 (or current price)
Note: In fast markets, fill may differ from trigger price
Quick Reference: Stop Order Types
| Order | Placed | Trigger | Use Case |
|---|---|---|---|
| Buy Stop | Above market | Price rises to trigger | Breakout entries |
| Sell Stop | Below market | Price falls to trigger | Stop losses |
| Trailing Stop | Moves with price | Trails by fixed amount | Lock in profits |
Example: Stop Order in Action
Stop Loss Example:
- Buy HDFC Bank at ₹1,700
- Place sell stop at ₹1,650 (stop loss)
- Stock trades: ₹1,700 → ₹1,720 → ₹1,680 → ₹1,650
- Stop triggers at ₹1,650
- Market sell order executes
- Actual fill: ₹1,648 (small slippage)
- Loss limited to ~₹52 per share
Breakout Entry Example:
- Stock consolidating at ₹500 (resistance)
- Place buy stop at ₹505 (breakout confirmation)
- Stock breaks out, hits ₹505
- Buy stop triggers
- Filled at ₹506
- Now long for the breakout move
A stop order becomes a market order when price reaches your trigger level. Use sell stops below your entry as stop losses to limit risk. Use buy stops above resistance to enter breakouts when price confirms the move.
Stop Orders vs. Stop-Limit Orders
| Aspect | Stop Order | Stop-Limit Order |
|---|---|---|
| After Trigger | Market order | Limit order |
| Execution | Guaranteed | Not guaranteed |
| Price Control | None | Specified limit |
| Gap Risk | Fills at gap price | May not fill |
| Best For | Stop losses | Volatile breakouts |
For stop losses: Use regular stop orders. In a crash, you need guaranteed execution even if the price slips.
For entries: Consider stop-limits if you want price control, but accept you might miss the trade.
Stop Placement Strategy
Wrong Places for Stops:
- Round numbers (₹100, ₹500) – obvious targets
- Just below support – everyone places there
- Too tight – normal volatility triggers them
Better Stop Placement:
- Below the support zone (not exact level)
- Use ATR for volatility-based stops
- Below/above significant candle wicks
- At a price that invalidates your thesis
The Slippage Problem
Stop orders become market orders, meaning slippage is possible:
Normal Market:
- Stop at ₹95, fills at ₹94.80
- Slippage: ₹0.20 (acceptable)
Gap Down:
- Stop at ₹95
- Stock gaps to ₹85 overnight
- Stop triggers at open, fills at ₹85
- Slippage: ₹10.00 (significant)
Lesson: Stops protect against gradual losses. They can’t fully protect against gaps. Size positions accordingly.
Common Mistakes
-
Stops too tight – Normal volatility triggers the stop before your thesis is proven wrong.
-
Stops at obvious levels – Round numbers and obvious support attract stop hunters.
-
No stop at all – “I’ll watch it” becomes account-destroying losses.
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Moving stops further away – If you need to move your stop, your original analysis was wrong.
How JournalPlus Tracks Stop Orders
JournalPlus logs your planned stop level and actual exit price, calculating slippage and showing whether you’re honoring your stops or moving them (a common discipline problem).
