Fill
A fill is an execution against an order, in whole or in part. The relationship between fills on one side of the book and cancellations on the other is the central statistic in spoofing detection.
Where does fill come up?
This term is used in the following manipulation techniques, each explained in full on its own page.
Enforcement actions involving these techniques
| Action | Agency | Filed | Technique | Penalty | Status |
|---|---|---|---|---|---|
| SEC v. Frank M. Cerisano Jr. (spoofing, 2026) | SEC | 2026-08-10 | Spoofing | $335k | settled |
| SEC v. Mingran Wang (spoofing, 2026) | SEC | 2026-06-25 | Spoofing | — | settled |
| CFTC v. Sidney Lebental (spoofing, 2026) | CFTC | 2026-05-06 | Spoofing | $200k | judgment |
| CFTC v. Gregg Smith and Michael Nowak (spoofing, 2026) | CFTC | 2026-01-16 | Spoofing | $350k | judgment |
| SEBI v. Manish Mishra and others (YouTube promotion of GG Engineering, 2025) | SEBI (India) | 2025-12-19 | Social Media Ramps , Spoofing | — | judgment |