Banknifty - Expiry Day - Expected Levels - 31st Jul'25
Important Preliminary Disclaimer
Intraday Chart Analysis & Data Preparation
Macro Downtrend: The period from the 24th to the 28th shows a strong, persistent downtrend.Bottoming & Reversal: On the 29th, the price found a bottom around55,900 and began a sharp intraday reversal.Consolidation/Stall: This recovery stalled near56,300 on the 30th. Since then, the price has entered a tightsideways consolidation range with a slight downward drift, ending the session near56,150 .
Model-Based Prediction for the Next 6 Trading Hours
1. Linear Regression
Basis: This model fits a straight line through the recent 5-minute data points. We'll consider the last 2-3 hours of data (around 24-36 candles).Analysis: The price action in the last few hours on the chart shows a clear, albeit gentle, negative slope. The price consistently made lower highs and lower lows within a very tight range. A linear regression line fitted to this data will point downwards.Predicted Trajectory: The model will simply extend this gentle downward line into the next session. It predicts a continuation of the slow grind down from the closing price.Predicted Range (Initial Hours): 56,100 - 56,130
Limitations: Highly susceptible to opening gaps. An opening outside of its narrow projected path renders the forecast immediately obsolete. It does not understand concepts like support or resistance.
2. Exponential Smoothing
Basis: This method gives more weight to the most recent 5-minute candles. It's more responsive to the immediate momentum than a simple linear regression.Analysis: Since the last several candles at the end of the day showed weakness and a drift towards the low, the model will heavily weigh this end-of-day selling pressure. It will interpret this as the most likely immediate path for the price.Predicted Trajectory: The forecast will be more bearish than the simple regression because it gives more importance to the weak closing candles. It expects the negative momentum to carry over.Predicted Range (Initial Hours): 56,080 - 56,120
Limitations: While more adaptive, it is still purely backward-looking. It is simply forecasting based on the "mood" at the market close, which can be easily reset by overnight factors.
3. ARIMA (Autoregressive Integrated Moving Average)
Basis: On an intraday chart, ARIMA models the "micro-structure" of price movements. It looks at the sequence of small up and down moves (the "differences" between candles) and uses this pattern to forecast the next few candles.Analysis: The recent data for the model is a series of small, negative changes (e.g., -5 points, -10 points, -5 points). The Autoregressive (AR) part of the model will recognize this pattern of consistent negative returns. The Moving Average (MA) part will factor in the small, consistent forecast errors. Both components will point towards a continuation of this pattern.Predicted Trajectory: The model will predict that the next few 5-minute candles will also likely post small negative returns, continuing the grind downwards from the close.Predicted Range (Initial Hours): 56,110 - 56,140
Limitations: ARIMA is designed for stationary series and struggles with the abrupt regime changes common in intraday trading (e.g., a sudden volume spike or a news-driven move).
4. SARIMA (Seasonal ARIMA)
Basis: This is an extension of ARIMA that incorporates intraday seasonality. For a 5-minute chart, a typical seasonal period would be m=75 (75 five-minute candles in a 6hr 15min trading day). This allows the model to learn patterns like "weakness during lunch hour" or "strength in the first hour."Analysis: The price action shows weakness into the market close. A SARIMA model might recognize this as a potential "end-of-day" pattern. Its forecast for the next day's open will be a combination of this seasonal understanding and the immediate ARIMA-based momentum. If end-of-day weakness does not historically correlate with weakness at the next open, the seasonal component might temper the bearish forecast. However, the immediate non-seasonal momentum is strongly negative.Predicted Trajectory: The forecast will be largely driven by the ARIMA component. It will predict a weak opening, reflecting the negative momentum from the previous close. The seasonality might slightly adjust this but is unlikely to reverse it.Predicted Range (Initial Hours): 56,100 - 56,130
Limitations: Building a reliable SARIMA model requires a lot of clean data to properly identify intraday seasonal patterns, which can themselves change over time.
Summary and Conclusion
The models are forecasting a move directly towards the immediate intraday support around 56,100 .The more significant support level from the previous day's low is at 55,900 .A gap down opening below 56,100 would align with these models and suggest a test of 55,900 is likely. Conversely, a gap up opening above the consolidation high of 56,300 would completely invalidate the models' short-term momentum-based forecasts and would signal that buyers have regained control overnight.
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