IV Estimate (from HV) Explained for NSE and MCX Trading

What IV Estimate (from HV) is

IV Estimate (from HV) sits in the Smart Money & Profile group of the SignBot indicator library. Implied-volatility estimate derived from historical volatility. Needs no option chain. It is one of the 187 indicators the Strategy Builder can use as a condition, and it can be combined with any other indicator, candlestick pattern or price level using AND / OR logic.

Settings SignBot exposes

When you add IV Estimate (from HV) to a condition, the builder asks for:

• period — default 20 — range 1 to 500

Longer periods react more slowly and produce fewer signals; shorter periods react faster and produce more, including more false ones. There is no universally correct value, which is exactly what the backtest is for.

Comparisons available on this indicator

SignBot only offers comparisons that make sense for IV Estimate (from HV), so you cannot build a condition the engine could not evaluate:

• crosses above
• crosses below
• is above
• is below

When SignBot evaluates it

Indicator and pattern conditions are evaluated on candle close, never mid-bar. A provisional value inside a forming candle can cross a threshold and then un-cross before the bar completes, which would fire a signal on something that never actually happened. Waiting for the close is a deliberate design decision in the engine, not a limitation.

Building a rule with IV Estimate (from HV)

1. Open the Strategy Builder and search for your scrip — the segment is detected automatically
2. Add an entry condition and choose IV Estimate (from HV) from the Smart Money & Profile category
3. Set the comparison and the value, or compare it against a second indicator
4. Add more conditions with AND / OR if you want confirmation before entry
5. Set your exit rules — target, stop loss and time exit are all separate settings
6. Review the capital and margin step, then save

Segment rules you should know

SignBot routes every strategy by segment, and the rules genuinely differ:

• NSE equity and F&O support 1min, 3min, 5min, 15min, 30min, 1hr, 4hr and 1day candles
• MCX futures support 1min, 5min, 30min and 1day only — the vendor rejects the others, so they are not offered
• On NSE options SignBot is buy-only. A bullish signal buys a CE, a bearish signal buys a PE, and there is no option writing anywhere in the platform
• Options entry and exit conditions are evaluated on the underlying spot candle, while the position itself is the option contract
• NSE history goes back up to 36 months for backtests; MCX history is limited to 3 months

A note on warm-up

Any period-based calculation needs history before its first valid value. SignBot seeds the candle window from vendor history when a strategy starts, so IV Estimate (from HV) is usable from the first live bar rather than after a long wait. If you choose a very long period on a short timeframe, check the backtest actually produced trades — a strategy that never had enough bars to compute a value takes no trades at all, which is the correct behaviour but easy to misread as a bug.

Try it in SignBot

IV Estimate (from HV) works on its own, but it is usually stronger as one leg of a multi-condition rule. Strategy creation and the AI Optimizer are free forever, so you can build and refine the rule before spending anything.

• Open the Strategy Builder and add the condition described above
• Run a backtest on real NSE or MCX history — Rs 10 per run
• Move it to SignBot virtual trading to watch it on live prices — Rs 15 entry and Rs 15 exit from wallet credits, no real money at risk
• Only when it has earned your confidence, run it on LiveBot through your own broker account — Rs 30 entry and Rs 30 exit

The Strategy Builder, the indicator library and the AI Optimizer are all free to use — you only pay per backtest run and per signal.

Related reading

Other articles in the SignBot knowledge base that pair well with this one:

• How the SignBot Strategy Builder turns plain English into a strategy
• Backtesting on real NSE and MCX history: what the report actually tells you
• Candlestick and structure patterns you can combine with IV Estimate (from HV)
• SignBot virtual trading versus LiveBot real trading

Important disclaimer

Educational content only. Not investment advice. SignBot is not a SEBI-registered investment adviser. Trading involves risk of loss.