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title: Replacing the HDB: ClickHouse for historical ticker data
description: A hands-on walkthrough of using ClickHouse to store and query historical cryptocurrency tick data from Binance's public archive. Covers loading 16.2 billion...
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# Replacing the HDB: ClickHouse for historical ticker data

**[ClickHouse](https://daily.dev/sources/clickhouse)** · 22 min read · 1 upvotes · 0 comments

## Summary

A hands-on walkthrough of using ClickHouse to store and query historical cryptocurrency tick data from Binance's public archive. Covers loading 16.2 billion rows of trades and quotes for five futures pairs, achieving a 19x compression ratio (191 GiB raw CSV down to ~10 GiB) using columnar storage and codecs like DoubleDelta and LowCardinality. Demonstrates practical financial queries in standard SQL: VWAP calculation, OHLC candle generation, and ASOF JOINs to match trades with contemporaneous quotes for slippage analysis. Shows how ClickHouse's primary index on (symbol, ts) allows queries to skip 99.999% of data even on a 16-billion-row dataset, keeping latency consistent. Storage cost on ClickHouse Cloud for 10 months of data works out to under $2/month.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://clickhouse.com/blog/historical-ticker-data>

## Questions this post answers

### How much can ClickHouse compress historical tick data compared to raw CSV files?

Roughly 19x. Ten months of Binance trade and quote data for five busy crypto futures pairs (16.2 billion rows, 1.46 TB uncompressed) compresses to about 76 GiB on disk in ClickHouse, using codecs like LowCardinality for symbols, DoubleDelta for timestamps and trade IDs, and ZSTD across all columns.

_daily.dev surfaces practical ClickHouse compression benchmarks for teams sizing out time-series storage costs._

### How do you compute VWAP and OHLC candles from tick data using ClickHouse SQL?

VWAP is computed by summing quote_qty (price times quantity) and dividing by total quantity traded, grouped by symbol; OHLC candles use toStartOfInterval to bucket timestamps and argMin/argMax with min/max/sum aggregates for open, high, low, close, and volume per bucket. Both are plain SQL GROUP BY queries with no specialized time-series language required.

_developers building trading analytics can look to daily.dev for concrete SQL patterns behind VWAP and OHLC queries._

### How can I detect a flash-crash style price event using trade and quote data together?

An ASOF JOIN matches each trade to the most recent quote at that instant, letting you compute average slippage (difference between trade price and mid-quote) per second. In one analyzed case, average slippage jumped from around $0.18-$0.87 during normal trading to $13.05 during a 4-second crash window, revealing exactly when liquidity was swept and when it recovered.

_quant developers can rely on daily.dev to track SQL techniques like ASOF JOIN for reconstructing market microstructure events._

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---

Tags: [#data-science](https://daily.dev/tags/data-science), [#fintech](https://daily.dev/tags/fintech), [#clickhouse](https://daily.dev/tags/clickhouse), [#compression](https://daily.dev/tags/compression)

[View this post on daily.dev](https://daily.dev/posts/replacing-the-hdb-clickhouse-for-historical-ticker-data-sy7cmudmc)

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