Hi all! I’m working on a Web3-based platform where vendors digitally commit to product specs using smart contracts. One challenge I’m facing: After a sale, the buyer could potentially raise a false complaint by swapping the original product with a similar but defective version—hurting the vendor’s credibility unfairly. I want something that can: Help detect…

My understanding is that option liquidity comoves with the underlying stock liquidity, and such comovement should be more pronounced near expiration due to more trading activities. How come in the Indian option market, the expiry day spike in option liquidity does not propagate to the underlying stock liquidity, which allowed Jane Street to manipulate?

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I’m curious about what’s new, what do you expect?