Traces, not names
A trading screen does not tell you who bought. What you see is price and volume. If a large player builds a big position in stages, it can leave a certain pattern in those numbers. FoudaLens looks for the pattern, not the person.
1Accumulation
The calculation looks at the last 10 sessions for three things together:
The idea: the price barely moves, volume keeps coming, and the dips happen on light trading. That can be what quiet buying looks like when someone avoids pushing the price up.
2A volume surge
If the latest session's volume exceeds 2.5 times the prior 20-session average, it counts as a surge. Example: an average of 400,000 shares makes the line 400,000 × 2.5 = 1,000,000. Today traded 1,100,000, or 2.75 times, so it crossed the line.
The flag "Smart accumulation detected" appears in three cases: the accumulation score passes 75, a volume surge happens, or the "liquidity vacuum" score passes 85. That score combines three things over the last 5 sessions: volume drying up below half its average, a narrower daily range than usual, and a price close to resistance.
3Large trades
This is a reading separate from the smart-money flag above, but another kind of trace FoudaLens shows for large dealings. The whale trades page lists single trades that crossed a threshold. The threshold differs per stock, by value or by shares, because a trade that is large for a small stock can be ordinary for a big one.
The limits of this reading
See the large trades
The whale trades page shows large trades as they happen, and each stock page shows its volume.
Check yourself
1. The average volume is 200,000 shares. Where is the 2.5x line?
2. A large trade appeared on a stock. What does it mean?
Summary
- FoudaLens looks for traces in price and volume, not for names.
- The flag fires on high accumulation, a liquidity vacuum or a volume surge; large trades are a separate tool.
- A sign is not proof, and it is not in the score or the signal.