IB Charts Not Displayed Correctly or Contain Incorrect Data

What Happened?

AgenaTrader displays a warning popup indicating:

• Charts are partially incorrect or contain faulty data.

• Historical data is missing, and charts are not updating (ticking).

What Does This Mean?

✅ IB API Limitations on Historical Data Requests

• The maximum number of simultaneous historical data requests via the IB API is 50.

• You should ensure that you have fewer simultaneous requests to avoid issues.

✅ Pacing Violations for Small Bars (≤ 30 Seconds)

• A pacing violation occurs if you exceed one of the following limits:

  • Identical historical data request within 15 seconds.

  • Six or more historical data requests for the same contract, exchange, and tick type within two seconds.

  • More than 60 requests within 10 minutes.

⚠ Warning: If too many historical data requests are made, you may be disconnected from the IB API. ➡ For more details on IB pacing violations for small bars, refer to this IB article.

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Important Notes

📌 1 instrument across 3 time frames = 3 historical requests 📌 1 Analyzer Escort column = 1 historical request 📌 Watchlists, backtest lists, indicators, and alerts also require historical data.

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Possible Solutions

✅ Reduce the number of instruments and historical requests sent to the IB server.

• Monitor the green connection bar in the lower left corner of AgenaTrader.

✅ Wait 10 minutes before requesting additional historical data.

• Be cautious: Reloading data may cause another historical overflow.

✅ Consider an external data feed (often paid services).

• Check the data feed overview here.

📌 This also applies to CapTrader, Banx, Lynx, and other brokers using the TWS API connection.