OHLCV close (per 1-min window)
Live tape (incoming ticks)
1-minute OHLCV / VWAP
| window | open | high | low | close | vwap | vol | trades |
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live feed → Kafka → Spark Structured Streaming → Apache Iceberg, queried below in real time.
| window | open | high | low | close | vwap | vol | trades |
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