To switch your Amibroker data feed safely, back up your current database, set up the new feed in a separate database, run backfill and compare both for a full session before you move over.
Your old data stays safe, and you only cancel the old feed once the new one has proven itself.
How to switch your Amibroker data feed in 6 steps
- Back up your database. Copy your current AmiBroker database folder somewhere safe. This protects your history and your settings.
- Create a new database for the new feed. Keep the two sources apart so candles from different vendors never mix.
- Install the new feeder. Follow the vendor steps and run the feeder and AmiBroker as administrator. Our installation guide shows the steps for Amiprofits.
- Add your symbols and run backfill. Add every symbol you chart, then load history. See backfill explained for how much you need.
- Check the AmiBroker settings. Confirm the base time interval, bars and time zone using the live intraday chart setup.
- Compare for a full session. Open the same symbols in both databases and watch for lag, gaps or missing candles. Use the free trial checklist to test properly.
What to compare before you cancel the old feed
| Check | What to look for |
|---|---|
| Speed | Do both feeds show the same price at the same moment? |
| Gaps | Are 1-minute candles complete after backfill? |
| Stability | Does the feed stay connected through the busy opening minutes? |
| Support | How quickly does support answer a question? |
| Price | What do you pay in month one and after? See the price guide. |
Common mistakes when switching
- Mixing two feeds in one database, which creates duplicate or mismatched candles.
- Cancelling the old feed before testing the new one in live market hours.
- Skipping backfill, so indicators on the new database have no history.
- Forgetting to add every symbol to the new feeder watchlist.
If something does not update after the switch, use the troubleshooting guide. AmiBroker′s own documentation on quotes and data sources is a helpful reference.
More from Amiprofits: IPOT data feed setup for AmiBroker, MT4 data feed and charts and about Amiprofits.
Frequently asked questions
Can I switch Amibroker data feed without losing my old data?
Yes, if you back up your database folder first and set up the new feed in a separate database. Your old data stays untouched until you decide to remove it.
Should I use the same database for two feeds?
It is safer not to. Mixing two sources in one database can create duplicate or mismatched candles. Use a new database for the new feed and compare before you move over.
How long does it take to switch?
Installing the new feeder and adding symbols usually takes a short time. Allow a full trading session to compare the two feeds side by side.
Do I need to run backfill after switching?
Yes. A new database starts empty, so run backfill for your symbols to load 1-minute and end of day history.
Can I test Amiprofits before I switch?
Yes. A free trial is available, and new users pay ₹449 for the first month, then ₹699 a month.
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