Nikkei 225 (NIK) Up or DownPolymarket historical data and price history
Nikkei 225 (NIK) Up or Down: a Polymarket indices series with markets recurring daily. Marketlens has captured 132 markets since March 2, 2026, of which 131 resolved, with $76.7K in traded volume. Every market's order book is stored in full: periodic L2 snapshots plus every individual price change with a millisecond timestamp, alongside trades, candles, and the final resolution outcome.
For the indices archive as a whole, see Polymarket price history.
Data as of 2026-09-17 · Polymarket series NIK Daily Up or Down · slug nik-daily-up-or-down
Resolution outcomes
Outcomes across 125 resolved markets with a recorded winning outcome. Settlement in the archive is by winning outcome, not by final traded price.
Markets in this series
The most recently resolved of 132 markets.
Backtest this series
from marketlens import MarketLens
client = MarketLens()
result = client.backtest(
MyStrategy(), "nik-daily-up-or-down",
after="2026-09-10", before="2026-09-18", initial_cash=1_000,
)
result.show() # inspect the run in the dashboardAvailable datasets
Common questions
How many Nikkei 225 (NIK) Up or Down markets are in the archive?
132 markets from March 2, 2026 through September 17, 2026, of which 131 have resolved and 1 are active.
What data exists for each Nikkei 225 (NIK) Up or Down market?
Full L2 order book history (snapshots plus every price change at millisecond resolution), individual trades, OHLC candles, and the resolution outcome. All of it is queryable by the series slug "nik-daily-up-or-down" through the API and Python SDK, or downloadable as Parquet.
How often do Nikkei 225 (NIK) Up or Down markets resolve Down?
Of 125 resolved markets with a recorded outcome, 63 resolved Down (50.4%) and 62 resolved Up.
How much does a typical Nikkei 225 (NIK) Up or Down market trade?
Average traded volume is $1.4K per market, $76.7K across the series.
Can I backtest strategies on Nikkei 225 (NIK) Up or Down?
Yes. Pass the slug "nik-daily-up-or-down" to client.backtest() in the Python SDK. Execution mode replays every market's order book tick by tick and fills simulated orders against real historical depth with queue priority, latency, and fee modelling; Alpha mode replays one bar per market for slower signals over long windows.
Related series: S&P 500 (SPX) Opens Up or Down, S&P 500 (SPX) Up or Down, Russell 2000 Daily Up or Down, Dow Jones (DJIA) Up or Down, Nasdaq 100 (NDX) Up or Down, Hang Seng (HSI) Up or Down, or all indices series.
Try it
Replay Nikkei 225 (NIK) Up or Down tick by tick
The free tier includes 1M rows per day with full API and full archive access, no card required.
$ pip install marketlens