Ib Order Execution

python3.13 scripts/ib_execute.py \
  --type stock \
  --symbol AAPL \
  --qty 100 \
  --side BUY \
  --limit 175.50 \
  --yes

Buy Option (at bid/mid/ask)

python3.13 scripts/ib_execute.py \
  --type option \
  --symbol GOOG \
  --expiry 20260417 \
  --strike 315 \
  --right C \
  --qty 10 \
  --side BUY \
  --limit MID \
  --yes

Sell Option

python3.13 scripts/ib_execute.py \
  --type option \
  --symbol GOOG \
  --expiry 20260417 \
  --strike 340 \
  --right C \
  --qty 10 \
  --side SELL \
  --limit 2.50 \
  --yes

Full Usage

python3.13 scripts/ib_execute.py \
  --type stock|option \
  --symbol SYMBOL \
  --qty QUANTITY \
  --side BUY|SELL \
  --limit PRICE|MID|BID|ASK \
  [--expiry YYYYMMDD] \      # Required for options
  [--strike PRICE] \          # Required for options
  [--right C|P] \             # Required for options
  [--timeout SECONDS] \       # Monitor timeout (default: 60)
  [--thesis "..."] \          # Trade thesis for logging
  [--notes "..."] \           # Additional notes
  [--yes] \                   # Skip confirmation
  [--dry-run] \               # Preview without placing
  [--no-log]                  # Don't log to trade_log.json

Agent Workflow

When the user asks to place an order:

1. Parse the request — Extract symbol, quantity, side, price
2. Build the command — Use ib_execute.py with appropriate flags
3. Execute — Run the script (it handles monitoring + logging automatically)
4. Report — Show the fill confirmation to user

Example agent response pattern:

Placing order: SELL 4500 NFLX @ $98.70...

[runs ib_execute.py]

✅ FILLED
   Symbol: NFLX
   Quantity: 4,500 shares
   Avg Price: $98.70
   Total Value: $444,150.00
   Logged to trade_log.json (ID: 15)

Multi-Leg Spreads

For spreads (verticals, iron condors, etc.), use inline Python with combo orders:

from ib_insync import IB, Option, ComboLeg, Contract, LimitOrder
import json
from datetime import datetime
from pathlib import Path

# Connect
ib = IB()
ib.connect('127.0.0.1', 4001, clientId=50)

# Qualify legs
long_call = Option('GOOG', '20260417', 315, 'C', 'SMART', currency='USD')
short_call = Option('GOOG', '20260417', 340, 'C', 'SMART', currency='USD')
ib.qualifyContracts(long_call, short_call)

# Create combo contract
combo = Contract()
combo.symbol = 'GOOG'
combo.secType = 'BAG'
combo.currency = 'USD'
combo.exchange = 'SMART'

leg1 = ComboLeg()
leg1.conId = long_call.conId
leg1.ratio = 1
leg1.action = 'BUY'
leg1.exchange = 'SMART'

leg2 = ComboLeg()
leg2.conId = short_call.conId
leg2.ratio = 1
leg2.action = 'SELL'
leg2.exchange = 'SMART'

combo.comboLegs = [leg1, leg2]

# Place order (positive limit = debit)
order = LimitOrder(action='BUY', totalQuantity=10, lmtPrice=6.50, tif='GTC')
trade = ib.placeOrder(combo, order)
print(f"Order ID: {trade.order.orderId}")

# Monitor for fill
timeout = 60
for i in range(timeout):
    ib.sleep(1)
    if trade.orderStatus.status == 'Filled':
        print(f"FILLED @ ${trade.orderStatus.avgFillPrice}")
        break
    if i % 10 == 0:
        print(f"Working... {trade.orderStatus.status}")

# Log to trade_log.json
if trade.orderStatus.status == 'Filled':
    log_path = Path('data/trade_log.json')
    trade_log = json.loads(log_path.read_text()) if log_path.exists() else {"trades": []}
    next_id = max([t.get('id', 0) for t in trade_log['trades']], default=0) + 1
    
    trade_log['trades'].append({
        "id": next_id,
        "date": datetime.now().strftime("%Y-%m-%d"),
        "time": datetime.now().strftime("%H:%M:%S"),
        "ticker": "GOOG",
        "contract": "GOOG Bull Call Spread $315/$340",
        "structure": "Bull Call Spread",
        "action": "BUY",
        "decision": "EXECUTED",
        "order_id": trade.order.orderId,
        "quantity": int(trade.order.totalQuantity),
        "fill_price": trade.orderStatus.avgFillPrice,
        "total_value": trade.orderStatus.avgFillPrice * trade.order.totalQuantity * 100,
    })
    
    log_path.write_text(json.dumps(trade_log, indent=2))
    print(f"Logged to trade_log.json (ID: {next_id})")

ib.disconnect()

Scripts Reference

Connection Reference

Exit Codes

Troubleshooting

Connection Failed

• Ensure TWS/Gateway is running
• Check API is enabled: Configure → API → Settings → Enable ActiveX and Socket Clients
• Verify correct port (4001 for Gateway, 7497 for TWS paper)

Order Rejected

• Check buying power in TWS
• Verify contract is tradeable
• Ensure limit price is reasonable

Order Not Filling

• Check current bid/ask vs limit price
• Consider adjusting limit closer to market
• Use --limit MID for aggressive fills

Client ID Conflict

• Each script uses different client ID
• If conflict, specify --client-id N with unused ID