# Youpin Doppler bid (buy order) prices

July 26, 2026

Youpin `bid` (buy order) prices and `bid_volume` now cover all Doppler and Gamma Doppler items. `ask_volume` is also now available. Refresh rate on all Youpin Doppler data (bid & ask) is now ~5 minutes on most items (with very illiquid knives @ ~20 minutes).

This data is available on [GET /v1/prices/latest](/docs/prices-latest) with bid history from July 26th, 2026 onwards on [POST /v1/prices/history](/docs/prices-history).