Marking the close
Marking the close is trading in the final minutes of a session specifically to influence the closing price, which is the price that sets portfolio marks, margin calls, index levels and derivative settlements.
Where does marking the close 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. Canaccord Genuity LLC (marking the close, 2026) | SEC | 2026-03-06 | Marking The Close , Marking The Open +2 | — | settled |
| ASIC v. COFCO International Australia Pty Ltd (marking the close, 2024) | ASIC | 2024-07-24 | Marking The Close , Price Manipulation | — | unknown |
| ASIC v. Interactive Brokers (marking the close, 2023) | ASIC | 2023-09-20 | Marking The Close | — | unknown |
| SEC v. Ahmad Haris Tajyar and Eric Leo Marsoubian (marking the close, 2021) | SEC | 2021-08-13 | Marking The Close , Matched Orders +1 | $220k | settled |
| SEC v. Andrew J. Kandelapas (marking the close, 2019) | SEC | 2019-06-21 | Marking The Close | — | judgment |