Support Board
Date/Time: Thu, 15 Oct 2026 18:39:53 +0000
Post From: NASDAQ Data Issues 2026-10-14 and 2026-10-15
| [2026-10-15 15:55:26] |
| Sierra_Chart Engineering - Posts: 25188 |
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1. The current issue. From NASDAQ: Nasdaq is currently experiencing a network disruption affecting multiple multicast groups originating from Carteret. As a result, customers may experience intermittent data gaps on the following feeds: Impacted Markets: All US equities markets (Nasdaq, Nasdaq Texas, and Nasdaq PSX) across all feeds (hardware and software) Both A and B feeds from Carteret are impacted. Clients are advised to use their Chicago feeds as a backup, as Chicago is currently unaffected. Clients experiencing data gaps should also submit recovery requests for any missing data. Nasdaq is actively investigating the issue. Additional updates will be provided as more information becomes available. We apologize for the disruption and appreciate your patience. 2. Yesterday, one of our servers with the Intraday data recording had been recording Odd Lot trades for NASDAQ symbols as normal trades. This historical data was getting served to users. Re-download the data for yesterday, following the instructions here if you see out of range values in the Intraday data: Historical Intraday Data (Missing Data / Download Errors / Viewing More Data): Retrying the Download When There is Data in the Chart This only applies to NASDAQ symbols like AAPL. The real-time data provided was still correct. 3. This is unrelated: We have worked on a new improved much more precise algorithm to determine Bid Volume and Ask Volume for NASDAQ symbols in the US Equities Consolidated Tape Feed. It appears to be working well. We will be making the same change for NYSE and AMEX stocks. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2026-10-15 16:08:19
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