Markets Impacted:
Products Impacted:
Contact Information: | What you need to know:Effective April 8, 2024, PHLX will be rebalancing the symbol distribution on the PHLX Depth of Market Channels for both the A and B feeds. |
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What is changing?
Symbol distribution will be rebalanced across channels with the following changes:
- Channel 9 K-L will support K-M
- Channel 10 M-N will support N-N
| PHLX Depth of Market | ||||
|---|---|---|---|---|
| UDP/IP Protocol Standard: MoldUDP64 Symbology Compliant: Yes Initial Release Date: July 2, 2012 | ||||
| Site | Channel/Purpose | Group | Port | Source IP Address* |
| New York Metro Area - "A" Feed RP: 207.251.255.48 | ||||
| A Feed 1 | Broadcast - Channel 9 (K - M) | 233.47.179.100 | 18009 | 206.200.151.128/27 |
| Rerequest UDP - Channel 9 (K - M) | 18109 | 206.200.151.14 | ||
| Rerequest TCP - Channel 9 (K - M) | 18109 | 206.200.151.14 | ||
| Broadcast - Channel 10 (N - N Excludes NDX) | 233.47.179.137 | 18010 | 206.200.151.128/27 | |
| Rerequest UDP - Channel 10 (N - N Excludes NDX) | 18110 | 206.200.151.64 | ||
| Rerequest TCP - Channel 10 (N - N Excludes NDX) | 18110 | 206.200.151.64 | ||
| New York Metro Area - "B" Feed RP: 207.251.255.58 | ||||
| B Feed 1 | Broadcast - Channel 9 (K - M) | 233.47.179.164 | 18009 | 206.200.151.192/27 |
| Rerequest UDP - Channel 9 (K - M) | 18109 | 206.200.151.78 | ||
| Rerequest TCP- Channel 9 (K - M) | 18109 | 206.200.151.78 | ||
| Broadcast - Channel 10 (N - N Excludes NDX) | 233.47.179.201 | 18010 | 206.200.151.192/27 | |
| Rerequest UDP - Channel 10 (N - N Excludes NDX) | 18110 | 206.200.151.69 | ||
| Rerequest TCP - Channel 10 (N - N Excludes NDX) | 18110 | 206.200.151.69 | ||
| Chicago Metro Area "A" – U.S. RP: 207.251.255.97 | ||||
| Broadcast - Channel 9 (K - M) | 233.187.20.96 | 18009 | 206.200.95.0/25 | |
| Rerequest UDP - Channel 9 (K - M) | 233.187.20.96 | 18109 | 206.200.92.132 | |
| Rerequest TCP - Channel 9 (K - M) | 233.187.20.96 | 18109 | 206.200.92.140 | |
| Broadcast - Channel 10 (N - N Excludes NDX) | 233.187.20.96 | 18010 | 206.200.95.0/25 | |
| Rerequest UDP - Channel 10 (N - N Excludes NDX) | 233.187.20.96 | 18110 | 206.200.92.248 | |
| Rerequest TCP - Channel 10 (N - N Excludes NDX) | 233.187.20.96 | 18110 | 206.200.92.249 | |
| Chicago Metro Area "B" – U.S. RP: 207.251.255.98 | ||||
| Broadcast - Channel 9 (K - M) | 233.187.20.104 | 18009 | 206.200.95.128/25 | |
| Broadcast - Channel 10 (N - N Excludes NDX) | 233.187.20.104 | 18010 | 206.200.95.128/25 | |
These changes will also be reflected on Nasdaq UDP/IP Address Page.
When will the changes be effective?
Changes will be effective starting April 8, 2024.
Will there be a testing period?
Customer testing will be offered on April 6, 2024, from 9am to 12pm EST.
Why is Nasdaq Making this change?
Symbol rebalancing will optimize traffic across channels.
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