| Method | Max updates/sec | Suitable for | |--------|----------------|---------------| | COM single quote | ~50 | 10–20 symbols | | COM batched (100 quotes) | ~500 | 50–100 symbols | | DDE | ~10 | Legacy, not recommended | | Plugin API (C++) | 1000+ | Professional use |
Ticker, Date, Time, Open, High, Low, Close, Volume amibroker data feeder
: For performance, batch updates every 100–500 ms, not every tick. | Method | Max updates/sec | Suitable for
: A companion utility often bundled with AmiBroker that downloads data from free sources (like Yahoo Finance) or premium EOD providers. Top Data Feeder Providers Volume : For performance
| Issue | Likely cause | Fix | |-------|--------------|-----| | COM Exception 0x80040154 | AmiBroker not registered / 64‑bit mismatch | Compile as x86, run as same user | | No data appears in chart | Stock symbol not created in AmiBroker | Create symbol via ab.Document.Stocks.Add("SYM") | | Real‑time updates lag | Too many COM calls | Batch updates every 200 ms | | Historical import missing bars | Date/time format mismatch | Use YYYYMMDD,HHMMSS strictly | | Volume not updating | Volume field not set | Always set quote.Volume |
The choice of feeder often depends on your geographic market and budget: Best Amibroker Datafeeds for Realtime & Tick Data
// Simulate real‑time feed var rnd = new Random(); for (int i = 0; i < 100; i++)