Mingran Wang, a 52-year-old trader from Fremont, California, pleaded guilty in federal court to operating a spoofing scheme that manipulated thinly traded U.S. securities through more than 3,000 deceptive trades between 2021 and 2024. Wang admitted to placing large orders he never intended to execute, creating false market signals that allowed him to profit from genuine trades placed on the opposite side of the market. The case reflects the Justice Department's continued focus on sophisticated market abuse beyond traditional insider trading, as regulators expand surveillance capabilities across electronic trading venues.
Wang Operated Multi-Account Spoofing Scheme Across Thinly Traded Securities
According to court documents, Wang presented himself as the founder and investment manager of Greenroots Capital Management, promoting extensive experience in algorithmic trading and securities markets. Prosecutors allege that behind those credentials he carried out a coordinated spoofing strategy across multiple brokerage accounts under his control.
Spoofing involves submitting orders without any intention of executing them. Instead, the orders are designed to create the false appearance of buying or selling interest, encouraging other market participants to react and move prices in the desired direction. Once prices shift, the trader executes legitimate transactions on the opposite side of the market before cancelling the deceptive orders. Authorities allege Wang repeated that process more than 3,000 times over approximately three years.
Spoofing Strategy Created False Market Signals Through Non-Genuine Orders
The case provides an example of spoofing as defined under U.S. securities law. According to prosecutors, Wang simultaneously controlled multiple brokerage accounts across different firms. Large non-bona fide orders were entered on one side of the market solely to influence prices, while genuine trades were placed on the opposite side. Once those legitimate orders executed at more favorable prices, the fake orders were cancelled before execution.
Because Wang allegedly focused on illiquid securities with relatively low trading volumes, prosecutors argue the false orders had a greater impact on market prices than they would have in highly liquid large-cap stocks. Thinly traded securities generally have fewer active buyers and sellers, making prices more sensitive to individual orders entering the order book.
Justice Department Secured $1.3 Million Forfeiture in Guilty Plea
Wang pleaded guilty to one count of using interstate commerce for the purpose of securities fraud and agreed to forfeit more than $1.3 million in proceeds generated from the scheme. The Justice Department has increasingly treated spoofing as a serious form of securities fraud, particularly as electronic surveillance systems become better at identifying suspicious order-entry patterns.
While high-profile spoofing prosecutions initially focused on futures and commodities markets, regulators have expanded enforcement across equities, options and other electronically traded products. The case also demonstrates how regulators increasingly rely on detailed order-level data rather than completed transactions alone. Large numbers of cancelled orders, repetitive trading behavior and coordinated activity across multiple brokerage accounts can all trigger market surveillance systems.
Wang Faces Sentencing on Sept. 30 With Five-Year Statutory Maximum
Wang is scheduled to be sentenced on Sept. 30 in the Northern District of California. The offence carries a statutory maximum sentence of five years in federal prison, although the final sentence will be determined by the court after considering the U.S. Sentencing Guidelines and other statutory factors.
The U.S. Postal Inspection Service investigated the case with substantial assistance from FINRA's Market Abuse Unit, underscoring the role that self-regulatory organizations continue to play in identifying sophisticated trading misconduct. Modern market surveillance systems allow exchanges, FINRA and regulators to reconstruct every order submitted, modified and cancelled across trading venues, strengthening enforcement against spoofing.
FAQ
What is spoofing in securities trading?
Spoofing involves submitting orders without any intention of executing them to create the false appearance of buying or selling interest. The orders are designed to encourage other market participants to react and move prices in the desired direction. Once prices shift, the trader executes legitimate transactions on the opposite side of the market before cancelling the deceptive orders.
Why did Wang target thinly traded securities?
Wang allegedly focused on illiquid securities with relatively low trading volumes because the false orders had a greater impact on market prices than they would have in highly liquid large-cap stocks. Thinly traded securities generally have fewer active buyers and sellers, making prices more sensitive to individual orders entering the order book.
What sentence does Wang face after his guilty plea?
Wang is scheduled to be sentenced on Sept. 30 in the Northern District of California. The offence carries a statutory maximum sentence of five years in federal prison. The final sentence will be determined by the court after considering the U.S. Sentencing Guidelines and other statutory factors. Wang agreed to forfeit more than $1.3 million in proceeds generated from the scheme.
