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Wed, Feb 25, 2026 :

Option Chain

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CALLS		Strike	PUTS
Call LTP	Vol		Vol	Put LTP

Pre Built Strategies

Positions

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Side	Type	Strike	Qty	Entry	Entry Price	LTP/Exit	P&L	Exit	X

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US Options Simulator

Historical US Options Replay & Backtesting Simulator

NEWDAY is a minute-by-minute US options replay and backtesting simulator built using real historical OPRA options data.

Replay historical SPY trading days, test multi-leg options strategies, track live P&L, and study realistic market behavior using historical option chains, 0DTE expiries, and future expiries.

Built for realistic options strategy testing with historical option pricing, payoff analysis, expiry behavior, and full trading-day playback.

Terms

Realistic Option Chain

View historical SPY option chains with strikes, premiums, ATM visibility, 0DTE expiries, and future expiries for realistic strategy practice.

Strategy Testing

Practice option buying, selling, spreads, straddles, strangles, iron condors, and multi-leg setups before trading live.

Payoff Analysis

Track P&L, study breakevens, understand expiry payoff behavior, and compare how positions change through a trading day.