You cannot walk through thousands of stocks and coins by hand. A screen narrows the market by a measurable condition. But single-condition filters like “RSI below 30” are only the beginning — the real power sits in composite scans, where several conditions must hold at the same time.
Five categories
| Category | Count | What it looks for |
|---|---|---|
| Basic filters | 8 (free) | Single-indicator classics: oversold/overbought, volume, momentum, golden cross, value, dividend |
| Trend | 12 | Direction and persistence: EMA stacking, ADX strength, Ichimoku breaks, multi-timeframe alignment, Hull MA, Parabolic SAR, Aroon |
| Oscillator | 9 | Turning points: stochastic bottom reversals, StochRSI crosses, CCI and Williams %R lows, CMF accumulation, volume-backed momentum breaks |
| Volatility | 6 | Compression and expansion: tight-range consolidation, Bollinger breaks, post-squeeze momentum, quiet accumulation |
| Fundamental | 16 | The company itself: GARP, PEG, ROE/ROA quality, profit margin, free cash flow, deep value, revenue growth |
Scans built on investing styles
The fundamental category contains scans that apply the criteria of well-known investment approaches directly: Warren Buffett's criteria, Peter Lynch's valuation, Ben Graham's defensive stock screen. These do not say “look at this indicator”; they apply the numerical conditions of an investing philosophy across the whole market. For a long-term investor this is the most valuable part of the catalogue.
Composite scans
At the most selective end of the catalogue are composite scans that require several conditions to hold simultaneously. These can return nothing for days — that is design, not a defect. A selective scan that returns results every day is not selective enough.
- Bottom scans demanding perfect alignment: oversold, volume confirmation and a reversal structure all at once
- Volatility singularity: sudden expansion after a long compression — aiming to catch the moment of the break
- Bear-trap scans: structures that looked like breakdowns but recovered, carrying the fingerprint of institutional buying
- Flawless momentum: candidates where trend, acceleration and volume line up together
Using screening well
- Pick a category that matches your approach. If you follow trends, an oversold list will keep walking you into falling knives.
- Start with a single-indicator filter; if the result is too crowded, move to a composite scan.
- Sort by the columns; the top row is not automatically the best candidate.
- Add an interesting symbol to your watchlist first, rather than analysing it immediately. Watching it for a day eliminates most bad entries.
- Assign the scan you like to the Opportunity Agent as its strategy — so you do not have to check by hand every day.
- Run the analysis only once the question is clear. Your analysis quota is finite; spend it on the right question.
Scans run on Borsa İstanbul, the US exchanges, the UK, Germany and the major crypto venues. In crypto the fundamental category is naturally disabled.