We've been asked a lot of times about the differences between Norgate Data and Premium Data in AmiBroker. This post should help clarify the differences but feel free to ask us any further qeustions.
TL;DR: Use Norgate Data instead of the (legacy) Premium Data.
Norgate Data was released on June 1st 2018. This uses a Norgate-developed plugin for AmiBroker that has significantly more capabilities than our prior integration known as Premium Data.
The following describes some of the additional features that Norgate Data has beyond those in Premium Data:
Data is user-configurable for adjustments (i.e. users can select which types of corporate actions are incorporated into the price data), if the data is to be padded (i.e. repeating the previous close for any non-traded periods), securities are better organized and dynamic watchlists based upon your own criteria can be created. Thomson Reuters Business Classifications (a 5-level structure) is also incorporated. Summaries of the company's operations and financials are available in AmiBroker's Interpretation window.
Data automatically updates in the background according to an edition schedule. If data is delayed for any reason, the system will keep trying until the edition is available. AmiBroker's batch capabilities (v6.20 and above) allow you to perform database maintenance (add new symbols, modify symbol metadata) automatically.
At higher subscription levels (Gold level and above), various additional data is provided including extensive fundamental data, broker consensus forecasts/targets, key economic, key forex rates and commodity data.
For system developers/backtesters we have further subscription levels that incorporate delisted stock data for stocks that were previously listed on a major exchange, plus the ability to backtest on historical index constituents. For example, you can easily incorporate the ability to only trigger a Buy rule if the stock is in the index on the trigger day. A wide range of historical index constituents is available including the Dow Jones Industrial Average, S&P 500,S&P MidCap 400, S&P Small Cap 600, S&P SuperComposite 1500, Nasdaq 100, Russell 1000, 2000 and 3000. These allow you to backtest your system across different market cap groups.
All further development will be on the Norgate Data platform. (For example, under active development as of July 2018 is an indicator called NorgateDividendYieldTimeSeries that will show a trailing time series of a trailing 12 month dividend yield for all the history of that stock, allowing you to backtest a time series calculated for each historical bar showing you the dividend yield of the stock based upon the current dividend entitlements for that stock at that particular date. This is quite a complex indicator when you take into account all of the corporate actions that affect the dividend yield over a stock's entire history).
Premium Data
Premium Data is Norgate's older/legacy system. It provides data in MetaStock format. AmiBroker is able to interface to this data using AmiBroker's in-built MetaStock plugin. Norgate provides a pre-configured database which interfaces to the MetaStock-format data and also provides a Javascript-based maintenance that organizes symbols into their respective market/groups and also updates various pre-generated watchlists. Premium Data does not incorporate normal/ordinary cash dividends but other events such as special dividends, splits, reverse splits, spinoffs etc are automatically incorporated into the data.
Existing Premium Data users
We have FAQs relating to your Premium Data subscription and how to move to Norgate Data here:
https://www.premiumdata.net/support/NDU-release.php
Summary
We recommend you use Norgate Data instead of Premium Data with AmiBroker due to the significantly-enhanced capabilities. Free trials are available from our web site at https://norgatedata.com/