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Polymarket 2026 Midterms Data

Every Polymarket 2026 Midterms market since 2026-05-01, tick by tick: order books, trades, and on-chain fills for the 2026 US midterm elections.

1,276
events
12,786
markets
2026-05-01
data since
End point
/v1/polymarket/l2/{YYYY/MM/DD}/{market_slug}.parquet
/v1/polymarket/trades/{YYYY/MM/DD}/{market_slug}.parquet
/v1/polymarket/onchain_fills/{YYYY/MM/DD}/{market_slug}.parquet

Polymarket 2026 Midterms datasets

Part of Polymarket politics data. Column definitions are in the data schemas.

Polymarket 2026 Midterms data coverage
CoverageEvery Polymarket 2026 Midterms market since 2026-05-01, published daily
Events and markets1,276 events and 12,786 markets (Polymarket, as of 2026-10-15)
Market typesControl of the House and Senate, Senate and governor races, primaries, and vote-share markets
ExamplesWhich party will win the House in 2026? · Which party will win the Senate in 2026? · New Jersey Republican Senate Primary Winner
Data typesl2 (book, price_change, tick_size_change, market_resolved), trades, onchain_fills
CollectionAWS London, the same region as Polymarket; median collection latency 4.6 ms

More politics data

Download Polymarket 2026 Midterms data

import pandas as pd

url = "https://api.pmdata.dev/v1/polymarket/l2/"
url += "2026/08/08/will-the-democratic-party-control-the-house-after-the-2026-midterm-elections.parquet"

df = pd.read_parquet(url, storage_options={"api_key": "<YOUR_API_KEY>", "User-Agent": "Mozilla/5.0"})
print(df.head())

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