$Nvidia (NVDA)$up and down turn, this week mainly put, mainly 905. Although 850 open positions are not the main target. The market does have a pullback tendency but Nvidia is safe. As for NVDL, call options unexpectedly have higher relative open interest, and put options have the first open interest this week at 40.

$Reddit(RDDT)$45 put options expired on April 5 last Friday, the first open position, and the open position of 35, 30, 25 put options expired on April 19 continued to rise, and saw the rise squeeze did not play, and the fall squeeze is very likely.

As the counterparty to the purchase of the put option, the market maker needs to sell the put option and then to hedge it needs to short the stock. According to the calculation of option gamma, as the stock price continues to fall and the out-of-the-money exercise price gamma continues to increase, the market maker will continue to short the stock. Although the first option corresponds to a maximum of 100 shares, the put corresponding to 45 meets the exposure requirement, and there are 40, and 35, and 30. It's like a serial detonator. The stock crashed before the embargo was lifted.

In recent weeks, someone has been betting that NVDA's gamma is detonating, and has continued to buy worthless out-of-price options every week, but there is not much money, and tens of thousands of dollars are spent every week, which is similar to the probability of winning a real lottery.