We wanted reliable parquet data for backtesting. Couldn't find it. Everything was either locked behind expensive vendor contracts, only available as CSVs, or scattered across unreliable free APIs that break when you need them most. So we built MarketParquet.

Clean OHLCV data, already in Parquet, partitioned by date, ready to load into pandas or polars or DuckDB without any prep work.

> What's included

• US Stocks, ETFs & Futures -- 10,000+ tickers
• 1-min, 5-min, 30-min, 1-hour, and daily bars
• History back to 2000, updated daily by 6:30 PM ET
• Split & dividend adjusted prices
• Delisted securities included (no survivorship bias)

Daily data is free, forever -- full history, no credit card. Need intraday or API access? That's what Pro is for.