# Future OI Cycle Scanner — StockMojo

> Futures OI lifecycle phases — long buildup, short buildup, unwinding, covering

- Live page: https://stockmojo.in/future-oi-cycle
- Content last updated: 2026-04-21
- Platform: StockMojo — free options analytics for Indian markets (NSE F&O)

This is a machine-readable markdown mirror of the live tool page. The live page shows real-time NSE data during market hours (09:15-15:30 IST) and supports 200+ F&O symbols via per-symbol URLs like https://stockmojo.in/future-oi-cycle/banknifty.

## Frequently asked questions

### What are the four phases of the OI cycle?

The four canonical phases are: long buildup (price up + OI up, fresh bullish positioning), short buildup (price down + OI up, fresh bearish positioning), short covering (price up + OI down, shorts exiting), and long unwinding (price down + OI down, longs exiting). Every trading day falls into one of these.

### Why 50 days specifically?

Fifty trading days is roughly 10 weeks — long enough to capture multiple expiry cycles and regime shifts, short enough to reflect the current market environment. It filters out dated noise while giving you a meaningful sample size to judge whether the current trend is institutionally supported or already exhausted.

### How do I find stocks with the cleanest bullish trend?

Use the match-count filter to rank stocks by how many of the last 50 days fell into each cycle phase. Stocks with 25+ long buildup days and 2-3 short buildup days show the cleanest bullish trends. The reverse pattern (heavy short buildup, minimal long buildup) identifies the cleanest bearish trends.

### What does a mixed pattern mean?

A stock with roughly equal counts across all four phases is range-bound with no dominant institutional bias — typically better traded with option-selling strategies (strangles, iron condors) rather than directional futures. The scanner makes these range-bound names easy to identify.

### Can I export the scanner results?

The table can be sorted and filtered in-browser. You can also bookmark filter URLs that preserve your selected symbol, date range, and criteria — share the same view with colleagues without them having to recreate the filter.

### How often does the data refresh?

The 50-day window rolls forward each trading day. After market close, the prior day's classification is added and the 51-days-ago data rolls off. During market hours, the current day's live classification updates continuously as new flow develops.

## How to use the OI Cycle Scanner

1. **Filter by symbol type** — Start with indices (Nifty, BankNifty, FinNifty) for macro read, or filter by sector (IT, banks, auto) for sector-rotation ideas.
2. **Sort by phase match-count** — Rank by long-buildup count descending to find the strongest bullish trends. Sort by short-buildup for bearish trends.
3. **Inspect the timeline** — Click into a name to see the day-by-day classification timeline. Runs of consecutive long-buildup days are stronger signals than scattered ones.
4. **Filter out range-bound names** — Exclude stocks where long-buildup count is within 5 of short-buildup count — these are ranging and weaker for directional trades.
5. **Combine with intraday tools** — Once you've shortlisted names, cross-check with Future Intraday Chart and Price vs OI to time specific entries.

## Related tools

- [Future Intraday](https://stockmojo.in/future-intraday) — markdown: https://stockmojo.in/future-intraday.md
- [Future Price vs OI](https://stockmojo.in/future-price-vs-oi) — markdown: https://stockmojo.in/future-price-vs-oi.md
- [Smart OI](https://stockmojo.in/smart-oi) — markdown: https://stockmojo.in/smart-oi.md

## Glossary

Terms used: oi-cycle, long-buildup, short-buildup, 50-day-trend. Definitions: https://stockmojo.in/glossary