$UP Fintech(TIGR.US) made two small intraday options at the opening, unexpectedly gaining some profits, and cleared all positions by the close. The market makers of this stock like to set traps mid-week and slaughter both bulls and bears on Fridays, with very sneaky tactics: 1. They push up the stock price using positive news or high expectations, often outperforming other Chinese concept stocks by two to three times. For example, last Friday, they quickly pulled the stock up nearly 20 points from underwater based on high expectations for the Ministry of Finance meeting on Saturday. This Friday, they pushed it up nearly 20 points in the night session on the back of interest rate and reserve requirement cuts. 2. After the rally, they quickly dump the stock, like the 15-point drop this Monday or the plunge back underwater in the early hours this Friday. 3. Intraday volatility is huge and often contradicts the opening trend, frequently flipping from gains to losses or vice versa, leading to misjudgments at the open. 4. The night session, pre-market, and post-market movements often diverge from the regular session, making misjudgments easy. 5. The market makers tightly control the script, setting up the same slaughter play every Friday.