I started researching/writing this post about a month ago. It took a strange arc. It began with me wondering about…
Yesterday in “trader” is a uselessly broad term, I boosted several of Euan Sinclair’s insights about option trading. I saved one…
Last week, in American options are not vanilla, we covered not only the concept of early exercise for American options, but…
I’ve always found it amusing that the most commonly traded options, American-style equity options contracts, are considered “vanilla”. Because they…
Horse tweeted: The moment you see a bet on a platform like Kalshi, Polymarket, or the soon-to-be Robinhood+SIG exchange, your…
Last week, in part 1, we backfilled prerequisite knowledge: Distance in return space: equal percentage moves aren’t equal in compounded or…
“They” say human labor will be irrelevant by 2027. By then, any business you can think will be solved by…
A traditional way to think of a stock price is the expected value of its future prices weighted by their…
This is a fun one. A good friend and mentor from the pit sent me this (lightly edited and hyperlinked):…
Recently, I’ve been writing a lot about option funding — implied rates, reversal/conversions, and financing stock positions, and even a…