Stolo's stock market screener filters all 218 NSE F&O stocks by Long Buildup, IV range, PCR, and sector - giving you an actionable shortlist before the market opens.
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The NSE FNO segment has over 200 instruments. Without a structured market screener, a trader wastes the first hour of every session just trying to figure out which stocks are actually moving — and why.
Most tools show one stock at a time. Getting a market-wide picture means switching 20 tabs and losing context.
Stock screeners filter on price and volume. They completely miss OI buildup, IV range, and PCR — the signals that actually matter for F&O traders.
Manually scanning through sector by sector, stock by stock, is a 90-minute job. By the time you finish, the opportunity you were looking for is already gone.
Knowing that "long buildup is happening" is not enough — you need to know exactly which stocks are seeing it, ranked, right now.
Spot price, futures OI, and options activity are never in one view. Connecting the dots across three different tools introduces lag and errors.
A market screener is a filter-and-rank engine that scans the entire NSE FNO segment — all 200+ stocks — and surfaces the ones meeting your specific trading criteria. Rather than watching individual stocks, it lets you ask the market a question: "Show me every stock with rising OI, increasing futures volume, and an IV below 30% right now."
An FNO-specific market screener goes further than a standard stock screener by including options data — implied volatility, put-call ratio, OI buildup patterns, and futures change. This is the difference between knowing a stock moved and knowing why it moved and whether an options position is worth taking.
Explore OI AnalysisSet custom ranges for IV, PCR, futures % change, and OI % change. The screener returns only the stocks that pass every filter simultaneously.
One click to isolate Long Buildup, Short Covering, Short Buildup, Long Unwinding, Price Gainers, or OI Gainers across all 200+ FNO stocks instantly.
Each stock row shows spot LTP, futures LTP and OI, and options metrics — ATM IV, PCR, PE OI — in a single horizontal view with sortable columns.
Below the stock table, a market-breadth summary shows advance/decline ratio, total PE and CE OI, top gainers and losers, and sector breakdown in real time.
Stolo's market screener combines granular left-panel filters, one-click preset signals, multi-column data views, and real-time market insights into a single workspace designed for focused trading sessions.
The left-side filter panel lets you narrow the entire FNO universe by eight independent parameters at once. Set a sector (Banking, Finance, Auto), pick an index (Nifty 50, Bank Nifty), choose a trend by OI action, filter gainers or losers, and set numeric ranges for IV, PCR, futures % change, and OI % change. Every filter compounds — the result is a precise list of stocks that satisfy all your criteria simultaneously.
At the top of the screener, seven preset chips let you isolate specific market activity without touching the filter sidebar at all. Tap "Long Buildup" and you instantly see every FNO stock where price is up and OI is increasing — the classic accumulation signal. Tap "Short Covering" to find stocks where bears are exiting. These presets are designed for the first 15 minutes of a trading session when speed matters most.
Three column-group toggles — Spot, Futures, and Options — let you focus on exactly the data that matters for your current trade type. If you are looking for a futures positional trade, hide the options columns and expand the futures view. If you are sizing an options position, flip to the Options columns for ATM IV, PCR, PE OI, and PE OI change. Each row also shows an inline day chart sparkline so you can assess trend direction without leaving the screener.
Below the stock table, the Screener Insights panel gives you the macro picture in one glance. You see the total advance-decline count and percentage for the current filtered view, total PE OI and CE OI across all visible stocks, the top gainers and top losers by percentage change, and a full sector breakdown showing how many stocks are advancing or declining per sector. This contextualises individual stock signals within the broader market mood.
Every stock that passes your filter falls into one of four OI-based activity patterns. Understanding which pattern you are looking at is the difference between entering a position with conviction and chasing noise.
Price is rising and OI is rising simultaneously. New long positions are being added at higher levels, indicating that buyers have conviction and the move is fresh. This is typically the highest-quality setup for a directional options or futures trade. Confirm with a narrowing bid-ask spread and increasing futures volume.
Price is falling and OI is rising. This pattern means fresh short positions are being initiated at lower prices — typically by larger participants who expect further downside. It is a confirmation of a bearish trend rather than a temporary dip. Treat this as a signal to look at put buying or futures short setups.
Price is up but OI is falling. Existing short positions are being closed, which pushes price higher — but this is not new buying conviction. The move can reverse sharply once covering is complete. Treat this as momentum, not trend. Avoid entering fresh long positions late in a short-covering rally without additional confirmation.
Price is falling while OI is also falling. Existing long positions are being squared off, causing downward price pressure. This often signals exhaustion at a top or deteriorating sentiment. It does not necessarily mean new shorts are being built — it means existing longs have lost confidence. Use this to exit open long positions rather than initiating new shorts.
A screener is only as good as the workflow behind it. Most traders open a screener, click a few presets, and lose focus within minutes. A disciplined scan routine eliminates that noise and leaves you with a shortlist of two to three actionable setups before 9:30 AM.
Start Scanning FreeNavigate to Market Overview and click the "Screener" tab in the top navigation. The screener loads the full FNO universe with default columns showing Spot, Futures, and Options data. All 218 FNO stocks are visible. The last-updated timestamp in the top right tells you exactly when the data was refreshed.
Start with the coarse filters in the left panel — pick your preferred sector (e.g., Banking) or index (e.g., Bank Nifty) to reduce the universe to a relevant subset. This prevents you from getting distracted by signals in sectors you are not trading that day. Then set an IV Range if you have a volatility preference for your options strategy.
Click one of the seven quick filter chips — Long Buildup is the best starting point for a trending market day. The screener immediately shows only stocks meeting that pattern. If the result is still too many stocks, layer in the PCR range or OI % Change filter from the sidebar to tighten the list to your top five candidates.
Toggle the Spot / Futures / Options column groups to show only the data relevant to your setup. If you are looking at an options trade, enable the Options columns for ATM IV and PCR. If you are scalping futures, switch to Futures columns and sort by OI Change descending to surface the highest-activity contracts at the top.
Scroll below the table to the Screener Insights section. Check the advance-decline ratio — if 70%+ of FNO stocks are declining, a bullish setup in one stock carries elevated risk. Review the sector breakdown to confirm that your shortlisted sector is not an isolated outlier. Top Gainers and Losers give you the extremes to avoid chasing.
Click out from the screener into the OI Analysis or Option Chain for your shortlisted stock to verify the signal holds at the strike level. A Long Buildup in the screener confirmed by rising call OI at the nearest strike is a much higher-probability setup than a screener signal alone. Only then define your entry, stop-loss, and target before placing the trade.
These three tools are often confused with each other. Each answers a different question at a different level of zoom.
Scans all 200+ FNO stocks simultaneously and ranks them by your chosen criteria. Answers the question: which stocks should I be looking at right now?
Focuses specifically on open interest changes across stocks or strikes. Useful for isolating OI buildup patterns, but lacks the Spot and Options column context of a full market screener.
Gives a deep, strike-by-strike breakdown for a single stock or index. Essential for sizing a trade once you have found the stock using a screener, but cannot scan multiple stocks at once.
The Stolo workflow: Use the Market Screener to find the stock, the OI Analysis to confirm the signal, and the Option Chain to size and place the trade. Three tools, one platform.
Try the Full Workflow FreeMost traders use a broker's built-in watchlist or a generic stock screener and wonder why they keep missing setups. Here is how Stolo's market screener compares.
| Feature | Stolo | Broker Platforms | Generic Stock Screeners |
|---|---|---|---|
| Full FNO universe scan (200+ stocks) | Watchlist only | Partial | |
| OI-based quick filter presets (Long Buildup, Short Covering, etc.) | |||
| IV Range filter | |||
| PCR Range filter | |||
| Spot + Futures + Options in one row | Spot only | ||
| Show / hide column groups | Partial | ||
| Inline day chart sparkline per stock | Limited | ||
| Screener Insights (breadth, sector breakdown, top movers) | |||
| Sector and Index filter | Index only | ||
| OI % Change and Future % Change numeric filters |
Questions?
Direct answers to the most-searched questions about the FNO market screener, OI-based filters, and how to find trading opportunities on NSE.
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My first impression of your site, "K.I.S.S."..... Simple yet effective...uncluttered and has all the ingredients a trader actually needs not the nonsensical ones... great job
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You have something unique in your platform that has changed my trading. I have used Quantsapp earlier didn't find it useful. I have tried opstra, sensibull etc.
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Dear Sir, I am really impressed with the user interface and multiple other facilities for option traders.
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