Extended-Hours US Equity Data Moves to Pyth Pro

On June 15th 2026, Pyth Core will deprecate all extended-hours and session-based US equity feeds — pre-market (.PRE), post-market (.POST), and overnight (.ON). The full list of affected tickers is in the developer forum post. Applications relying on these feeds should transition to Pyth Pro before June 15th to maintain access.

This change applies to roughly 50 US equity tickers across all three session categories, including AAPL, TSLA, NVDA, COIN, MSTR, META, SPY, QQQ, and others. Regular-session feeds for these tickers remain on Pyth Core through the broader Core upgrade on July 31st.

What to do

Applications using any of the affected .PRE, .POST, or .ON feeds need to:

1. Sign up for Pyth Terminal at app.pyth.com

2. Subscribe to a Pyth Pro plan that includes US equities — either the U.S. Equities plan ($5,000 / month) or All Asset Classes ($10,000 / month)

3. Generate an API key and update integrations to point to the new endpoint

The full session-feed catalog and updated symbol mappings are available on Pyth Terminal. For chain or feed support questions, email data@dourolabs.xyz.

Why this is moving

Extended-hours and overnight equity data is some of the most premium data in the legacy market data economy. Pre-market, post-market, and overnight pricing for US equities is tightly licensed, expensive to source, and historically reserved for institutional desks paying through dedicated vendor contracts.

Pyth is one of the only providers offering true 24/5 US equity pricing onchain at all. That coverage exists because of the network's institutional publisher base — firms with direct access to extended-hours liquidity in venues like Blue Ocean ATS, where overnight US equity trading happens. Aggregating that data and pricing it as a paid product brings Pyth in line with how the rest of the market data world treats this category.

This is consistent with the broader Pyth Core upgrade launching on July 31st: the most valuable feeds and the highest-quality data flow through Pyth Pro, with revenue accruing to the Pyth DAO.

What stays on Pyth Core

Regular trading session equity feeds remain available on Pyth Core through July 31st, when the broader Core upgrade takes effect. After July 31st, all Pyth Core data access requires an active Starter or Pro plan through Pyth Terminal.

The publishers are the same. The data quality is the same. What changes is the commercial relationship — and which Pyth product carries which category of data.

Getting started

Sign up for a Pyth Pro plan at app.pyth.com. Read the migration documentation.