We have received reports that the Equinix data center at 350 East Cermak in Chicago has had cooling issues and has recommended to tenants to turn off their equipment. This seems to be affecting many, if not all, market data service providers and order routing systems, not just Rithmic’s. Though Rithmic’s equipment is not located in that data center, many internet service providers used by Rithmic route their internet traffic through that data center before reaching our systems (which are located in other data centers in the same building). Consequently, access to our systems has been interrupted for many of our customers and their end users. Our mobile app is able to connect to some of our systems but other apps may not be similarly able. We are working on routing traffic to our systems in Aurora through other internet service providers and will update you with our progress.

To connect to various instances of R | Trade Execution Platform™, machines behind a firewall will need to be able to connect to the following ip addresses with associated subnet masks:

38.65.202.192/27
38.65.210.64/28
38.79.0.80/28
38.98.144.224/27
128.177.47.161/28
130.117.187.64/28
184.104.190.17/28
184.105.22.224/27
216.57.156.160/28

NEW:

128.177.47.161/28

REMOVED:

64.125.103.224/27
69.166.6.224/28

The following ports must be accessible through the associated protocol at the ip addresses above:

65000 TCP
64100 TCP
63100 TCP
56000 TCP
55555 TCP
44444 TCP
40000 through to 42099 TCP

45454 UDP

Rithmic is a developer of high performance multi-asset trade execution software. Rithmic’s R | Trade Execution Platform™ for trading futures, spreads, equities and options provides highly stable and scalable desktop trading and risk management screens, bi-directional streaming connectivity with Microsoft Office Excel, a C++ API, a .NET API, market data and order routing.

To connect to various instances of R | Trade Execution Platform™, machines behind a firewall will need to be able to connect to the following ip addresses with associated subnet masks:

38.65.202.192/27
38.65.210.64/28
38.79.0.80/28
38.98.144.224/27
64.125.103.224/27
69.166.6.224/28
130.117.187.64/28
184.104.190.17/28
184.105.22.224/27
216.57.156.160/28

NEW:

208.97.247.96/28

The following ports must be accessible through the associated protocol at the ip addresses above:

65000 TCP
64100 TCP
63100 TCP
56000 TCP
55555 TCP
44444 TCP
40000 through to 41099 TCP

45454 UDP

Rithmic is a developer of high performance multi-asset trade execution software. Rithmic’s R | Trade Execution Platform™ for trading futures, spreads, equities and options provides highly stable and scalable desktop trading and risk management screens, bi-directional streaming connectivity with Microsoft Office Excel, a C++ API, a .NET API, market data and order routing.

To connect to various instances of R | Trade Execution Platform™, machines behind a firewall will need to be able to connect to the following ip addresses with associated subnet masks:

38.79.0.80/28
38.65.202.192/27
38.98.144.224/27
69.166.6.224/28
184.105.22.224/27
64.125.103.224/27
216.57.156.160/28

The following ports must be accessible through the associated protocol at the ip addresses above:

65000 TCP
64100 TCP
63100 TCP
56000 TCP
55555 TCP
44444 TCP
40000 through to 41099 TCP

45454 UDP

Rithmic is a developer of high performance multi-asset trade execution software. Rithmic’s R | Trade Execution Platform™ for trading futures, spreads, equities and options provides highly stable and scalable desktop trading and risk management screens, bi-directional streaming connectivity with Microsoft Office Excel, a C++ API, a .NET API, market data and order routing.

To connect to various instances of R | Trade Execution Platform™, machines behind a firewall will need to be able to connect to the following ip addresses with associated subnet masks:

38.79.0.80/28
38.65.202.192/27
38.98.144.224/27
104.153.226.0/27
184.105.22.224/27
64.125.103.224/27
216.57.156.160/28

The following ports must be accessible through the associated protocol at the ip addresses above:

65000 TCP
64100 TCP
63100 TCP
56000 TCP
55555 TCP
44444 TCP
40000 through to 41099 TCP

45454 UDP

Rithmic is a developer of high performance multi-asset trade execution software. Rithmic’s R | Trade Execution Platform™ for trading futures, spreads, equities and options provides highly stable and scalable desktop trading and risk management screens, bi-directional streaming connectivity with Microsoft Office Excel, a C++ API, a .NET API, market data and order routing.

To connect to various instances of R | Trade Execution Platform™, machines behind a firewall will need to be able to connect to the following ip addresses with associated subnet masks:

38.79.0.80/28
38.65.202.192/27
38.98.144.224/27
104.153.226.0/27
184.105.22.224/27
216.57.156.160/28

The following ports must be accessible through the associated protocol at the ip addresses above:

65000 TCP
64100 TCP
63100 TCP
56000 TCP
55555 TCP
44444 TCP
40000 through to 41099 TCP

45454 UDP

Rithmic is a developer of high performance multi-asset trade execution software. Rithmic’s R | Trade Execution Platform™ for trading futures, spreads, equities and options provides highly stable and scalable desktop trading and risk management screens, bi-directional streaming connectivity with Microsoft Office Excel, a C++ API, a .NET API, market data and order routing.

The past 2 weeks have been witness to extraordinary trading volatility in the futures and equities markets. Market data message rates for CME equity indexes (which include MES, MNQ, NQ, M2K and RTY) excluding ES, increased 25% from Friday, February 21, 2020 to Monday, February 24, 2020 and then doubled from Monday to Thursday. Rithmic received isolated reports on Thursday from end users of its paper trading systems questioning the prices at which their stops were triggered and their orders were filled by Rithmic’s exchange simulator and why auto-liquidation events were triggered. Rithmic investigated these reports and within 24 hours, put in place enhancements to its systems to handle an even greater number of market data messages and orders within the cpu and network resources available to its programs. As soon as these enhancements were in place, new reports questioning fill and stop prices and auto liquidation events ceased.

As you know, recent global events have precipitated major market movements which has led to unusually high traffic rates from the futures exchanges. Below are some tips to help your trading screens keep up with these market movements:

1. Keep the number of instruments to which you subscribe to a minimum. During normal market conditions it is not unusual for traders to chart or monitor level 2 data of 10 or 20 instruments. During high traffic rates this can cause you to receive more data than your desktop can process.

2. Keep to minimum the number of windows visible as the most consumptive action on a computer is generally painting a screen. The less screen painting, the more resource available for other tasks.

3. To protect its users from stale quotes, if Rithmic’s infrastructure detects that an application has been unable to keep up with the flow of market data, it will break the connection to that app. R | Trader™ and R | Trader Pro™ and many other apps will automatically reconnect in such situations and begin to receive current market data.

Actions specific to R | Trader™ and R | Trader Pro™:

If the clock on your machine is synchronized to a network time source frequently (e.g. your computer synch’s its clock with time.nist.gov every 1 or 2 minutes) then in the Quote Board window, make sure that the Update Time column is visible. If the times shown in the Update Time column, for symbols that are actively trading, is noticeably behind the time shown on the clock on your machine (typically shown in the lower right corner of the Windows status bar) then you know that the data in the app is somewhat stale and can take appropriate trading action.

When R | Trader™ and R | Trader Pro™ show yellow led lights and/or sound the “Slow Computer” alarm, the rate at which data is received by the computer is faster than the computer’s processor can handle. You may reduce the rates at which data is sent to the computer or reduce the frequency at which R | Trader™ or R | Trader Pro™ paint the screen as follows :

1. Subscribe to Aggregated Quotes (at the Login screen, click on the link, Aggregated Quotes). This causes the Rithmic’s servers to send no more than 4 sets of quote updates per second (representing the most recent quotes); or

2. In the Window menu of R | Trader™ and R | Trader Pro™, click on Preferences and then on the Performance tab and use the slider to change updates from 10 to 4 and click on the Apply button.

To connect to various instances of R | Trade Execution Platform™, machines behind a firewall will need to be able to connect to the following ip addresses with associated subnet masks:

38.79.0.80/28
38.65.202.192/27
38.98.144.224/27
104.153.226.0/27
184.105.22.224/27
216.57.156.160/28

The following ports must be accessible through the associated protocol at the ip addresses above:

65000 TCP
64100 TCP
63100 TCP
56000 TCP
55555 TCP
44444 TCP
40000 through to 41099 TCP

45454 UDP

Rithmic is a developer of high performance multi-asset trade execution software. Rithmic’s R | Trade Execution Platform™ for trading futures, spreads, equities and options provides highly stable and scalable desktop trading and risk management screens, bi-directional streaming connectivity with Microsoft Office Excel, a C++ API, a .NET API, FIX connectivity, market data and order routing.