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Mark to market

Marking to market is valuing a position at current market prices. Because it converts a price into reported profit, collateral and margin, anyone whose compensation depends on the mark has a motive to influence the price used.

instruments and markets · updated 2026-10-16

Where does mark to market 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
ASIC v. Delta Power & Energy (Vales Point) Pty Ltd (price manipulation, 2025) ASIC 2025-06-30 Price Manipulation , Marking The Close — filed
AMF France v. EcoR1 Capital LLC and M. Oleg Nodelman (marking the close, 2024) AMF (France) 2024-12-13 Marking The Close — judgment
ASIC v. COFCO International Australia Pty Ltd (marking the close, 2024) ASIC 2024-07-24 Marking The Close , Price Manipulation — filed
ASIC v. Interactive Brokers (marking the close, 2023) ASIC 2023-09-20 Marking The Close — settled
SEBI v. Aventis Biofeeds Private Limited and others (closing-session price ramp, Ruchi Soya, 2022) SEBI (India) 2022-04-29 Marking The Close , Settlement Price Manipulation — judgment

See also

Terms that refer here

Independent price verification · Margin · Marking-to-model · Mismarking · Net asset value

Back to the full glossary — 282 defined terms.