Trading System Bug Left Two Major Tickers With No Data for Weeks

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A developer working on an algorithmic trading system discovered that a name-extraction bug had prevented two of the most important large-cap tickers from being linked to collected news articles for several weeks. The flaw stemmed from a placeholder format used for tickers lacking data, which the parsing logic could not handle correctly, leaving their names blank and breaking article association. Fortunately, raw article headlines had already been stored, so fixing the bug allowed tens of thousands of records to be recovered almost instantly without restarting data collection. Separately, the developer also resolved issues where a coincidental phrase in an article body caused the collector to falsely detect a blocked page and skip entire days of data, and where batching too many API requests at once caused silent failures for high-volume tickers. The fixes were completed alongside a hardware upgrade, in which a case swap finally allowed a second GPU to be properly installed and load-tested successfully.

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