eSignal (trading platform)
Significant cost, haven't tested, very mainstream
Allows Custom Coding
The purpose of this blog is to allow the exploration of various resources available to active and long-term traders and investors, and to filter for platforms that have new capabilities such as those that allow custom coding for both institutional and non-institutional investors. Feel free to add additional items and make suggestions. This information is intended to be collaborative and no claim is made as to the accuracy of the information at any time.
Sierra Charts (charting, backtesting, options?)
Alternative to multi-charts. Posted message in forum on April 6, 2017 to see if auto trading was possible.
https://www.sierrachart.com/SupportBoard.php?
Better than multicharts according to write up from friend of Jim.
Interactive Brokers (platform and broker)
www.interactivebrokers.com
Allows lots of connectivity for outside platforms, no built-in algo tools, all third party, has options
Software List
www.interactivebrokers.com/Universal/servlet/MarketPlace.MarketPlaceServlet
Charting
https://gdcdyn.interactivebrokers.com/Universal/servlet/AccountAccess.AuthenticateSSO?action=ACCT_MGMT_MAIN&loginType=1&clt=0
Chat
http://chatsrv1.interactivebrokers.com/fchat/chat/flashchat.php
Elite Traders might be a good user forum https://www.google.com/search?sourceid=chrome-psyapi2&ion=1&espv=2&ie=UTF-8&q=elite%20traders&oq=elite%20traders&aqs=chrome..69i57j0l5.3711j0j8
Multicharts .NET version (algo, options support limited)
https://www.multicharts.com/net/purchase/
Support is excellent. I thought this was hands down best charting platform found as of 4-5-2017
Sierra Charts is better according to write-up by friend of Jim
Some problem with this that I don't remember.
Tradestation (platform and broker)
www.tradestation.com
Sierracharts may do intrabar execution more seamlessly and have better rates, but TS may be easier to test on. Really a toss up.
SC does not have radar screen which may not be needed.