The same underlying produces different chains for weekly and monthly contracts. Each has its own signal.
Weekly chains and monthly chains tell different stories. Weeklies show short-term positioning (this week's expectations). Monthlies show longer-horizon positioning.
Reading both alongside reveals where short-term and long-term views agree or diverge.
Short-dated (1-7 days). Theta dominates. Gamma peaks near expiry. Vega is small.
Reflects this week's positioning. Best for tactical trades around catalysts within 5 days.
Strota's main option chain page defaults to current weekly NIFTY.
Longer-dated (15-30 days). Vega significant. Theta lower. More room for IV regime changes.
Reflects longer-horizon positioning. Best for IV-based trades or longer event horizons.
Monthly OI is roughly 5-10x weekly OI for NIFTY.
Weekly bearish + Monthly bullish = short-term caution, longer-term confidence.
Weekly bullish + Monthly bearish = short-term momentum, longer-term concern (often before known monthly catalysts).
Weekly options have more daily volume; monthly options have more total OI. For tactical trades, weekly. For IV plays or longer horizons, monthly.
Yes — calendar spreads do this explicitly (sell weekly + buy monthly). Some traders also run independent weekly and monthly positions for different time horizons.