OpenAI IPO by...?Polymarket historical data and price history
OpenAI IPO by: a standalone Polymarket other event with 5 markets and $1.4M in lifetime traded volume. 1 markets have resolved and 4 are still trading. Marketlens records every market's order book at full depth, coverage running since August 15, 2026.
Data as of 2026-09-28
Markets in this event
Query this event
from datetime import datetime, timedelta, timezone
from marketlens import MarketLens
client = MarketLens()
[event] = client.events.list(q="OpenAI IPO by", take=1)
for market in client.events.markets(event.id, take=5):
print(market.question, market.outcomes[0].last_price)
# the order book behind any market, at any past moment
book = client.orderbook.get(market.id, at=datetime.now(timezone.utc) - timedelta(days=2))
print(book.midpoint, book.bid_depth, book.ask_depth)Common questions
What data does Marketlens have for "OpenAI IPO by"?
5 markets with full depth L2 order book history recorded since August 15, 2026, market metadata with lifetime traded volume, and the winning outcome for each market once it resolves.
How much has "OpenAI IPO by" traded on Polymarket?
$1.4M in cumulative traded volume across the event's markets. Per market volumes are listed in the table on this page.
How do I download "OpenAI IPO by" data?
Query it through the REST API or the Python SDK (pip install marketlens): search events for "OpenAI IPO by", list the event's markets, then pull each market's order book history. Bulk Parquet exports cover full markets for offline work; the free tier reads markets open in the last 7 days and Pro the full archive.
Related events: Which companies will be acquired before 2027?, Anthropic IPO by __?, Iran full airspace closure by...?, or the full event list.
Try it
Pull this event's books in one call
The free tier includes 2M data rows and every market open in the last 7 days, no card required.
$ pip install marketlens