According to FINRA, TP ICAP Global Markets Americas LLC was censured and fined $80,000 (with $40,000 payable to FINRA) for failing to maintain adequate supervisory systems to detect potentially manipulative trading.

The New York-based firm's deficiencies centered on inadequate surveillance for three types of market manipulation: spoofing and layering, marking the close, and wash trading. Each of these manipulative practices can harm other market participants and undermine market integrity.

For spoofing and layering detection, while the firm had implemented a surveillance report, it failed to establish written supervisory procedures explaining how the report should be reviewed. Without clear procedures, even good surveillance tools may be ineffectively used.

The firm's parameters for detecting "marking the close"—a manipulation where traders execute transactions near market close to artificially affect closing prices—were unreasonably narrow. They only flagged transactions in the last five minutes of trading that comprised more than 25 percent of that day's volume. These limitations caused the firm to miss red flags in 45 transactions.

Similarly, the firm's wash trade surveillance was limited to trades occurring within the same millisecond. By using such a narrow timeframe, the firm failed to identify red flags of wash trading in eight transactions. Wash trades, where the same beneficial owner is on both sides of a trade, create a false appearance of market activity.

The firm has since revised its procedures, implementing expanded parameters and automated exception-based surveillance reports.

For investors, this case demonstrates the ongoing challenges firms face in detecting sophisticated trading manipulation. Effective surveillance is essential to fair markets, and regulators continue to hold firms accountable for maintaining robust systems.