A proprietary trader at a broker-dealer places a series of buy orders for a thinly traded stock, coordinating with an associate at another firm who simultaneously enters matching sell orders at the same price and size. Neither party intends to change beneficial ownership, but the transactions create the appearance of active trading volume and push the reported price from $50 to $52. The trader then sells 20,000 personally held shares at $52. Which of the following best describes the violation and the trader's approximate improper gain?
- AMisrepresentation under Standard I(C); gain of $50,000
- BFront running under Standard III(A); gain of $52,000
- CTransaction-based market manipulation under Standard II(B); gain of $40,000
- DInformation-based market manipulation under Standard II(B); gain of $20,000
Show answer & explanationAnswer & explanation
Correct answer: C. Transaction-based market manipulation under Standard II(B); gain of $40,000
Wash trades/matched orders that create a false appearance of trading activity or artificially affect price without a genuine change in beneficial ownership constitute transaction-based manipulation under Standard II(B), Market Manipulation. The trader's gain from selling personal shares is (52 − 50) × 20,000 = $40,000, the price increase created by the manipulative volume multiplied by shares sold.
Why the other options are wrong
- A. Misrepresentation involves false statements about investments or services, not trading-based schemes.
- B. Front running involves trading ahead of anticipated client orders, not coordinated wash trading.
- D. Information-based manipulation involves spreading false information, not coordinated matched trades.
Market Manipulation (II(B)) — Transaction-Based
Transaction-based manipulation involves trades or orders (e.g., wash trades, matched orders) intended to mislead market participants about volume or price without genuine economic purpose.
- Distinguished from information-based manipulation (false statements/rumors)
- Wash trades and matched orders are classic examples
- Gain calculation: price change × shares transacted at the manipulated price
Memory trick: "Fake trades, fake tape — transaction-based manipulation escapes no cape."