https://precomputing.com/tags/engine-demo/ Recent content in Engine Demo on precomputing.com Hugo en-us Mon, 28 Sep 2026 00:00:00 +0000 https://precomputing.com/market-data-case-study-four-million-trades-turned-into-candles-checked-after-a-pulled-plug/ Mon, 28 Sep 2026 00:00:00 +0000 https://precomputing.com/market-data-case-study-four-million-trades-turned-into-candles-checked-after-a-pulled-plug/ <p>A stock chart is made of candles: for each minute, the first price, the highest, the lowest and the last, with the volume traded. A candle is a window summary, the same kind of summary Precomputing keeps for API latency, only in a field every investor knows. In the Engine demo a trading day of stock trades goes through the Engine, which keeps 1-second, 1-minute and 1-hour candles and a quote board ready in its SQLite file, and writes the file five times a second.</p>