RogerCyberBrokrs
672 posts



A Structural Warning on Iron Condors and Black-Scholes Misuse This case should serve as a clear example for everyone who spends the day talking about Iron Condors without understanding their structural implications or how Black-Scholes is actually meant to be used. Summary of the Mistakes: 1.Using a pricing model as a risk model ,Black-Scholes and CBOE IV price options; they do not model dealer hedging or market impact. In 0DTE, price is driven by forced gamma hedging, not implied probability. 2.Relying on close-to-close statistics in a path-dependent market 0DTE risk is intraday and nonlinear. Gamma regime changes occur during the session and are invisible to end-of-day backtests. 3.Ignoring gamma regime transitions Markets flip discontinuously from long gamma (stabilizing) to short gamma (accelerating). These transitions cannot be averaged out statistically. 4.Confusing positive EV with robustness. Selling convexity without regime detection creates unbounded tail risk. EV calculations that ignore conditional gamma exposure are incomplete. 5.Labeling structural outcomes as “rare events” Once price enters short-gamma territory, acceleration is the base case. The outcome was mechanically expected, not anomalous. 6.Operating without real-time structural control Without detecting when dealers become forced buyers or sellers, sizing and scaling are not risk management — they are delayed leverage. Bottom line: Iron Condors are not probability trades — they are structure-dependent trades. Applying Black-Scholes without understanding dealer gamma guarantees this outcome. This is not a matter of opinion. It is how 0DTE markets function.

Researchers at the Minneapolis Fed conclude that tariffs have effects similar to a "negative productivity shock" even though they don't change productivity. The upshot is that they lower the neutral rate of interest sharply in the short-run (but not in the long run): "To the extent that tariffs increase the relative price of investment, tariffs depress demand for capital. Because households are reluctant to lower asset supply commensurately, the decline in the demand for capital causes the natural rate of interest to fall sharply in the short run." Paper: nber.org/papers/w34206

@ShanghaoJin @maitian99 Mr Jin, can you elaborate on the last sentence please?




#Education Squeeze Against popular belief, when it comes to trading low quality companies during a squeeze, I prefer playing commons particularly when taking it overnight. The reason is simple: I have more control over the shares, especially outside of regular market hours when most of the big moves happen. That comes from years of experience and being through my fair share of short squeezes, and that goes for when squeezing bulls too. During market hours, sure, options can make sense. But time and time again, I’ve seen plays and people get completely crushed. Shoot just ask the $OPEN guys that keep hoping for their $420 or whatever price target that their leader told them. And for the love of almighty, learn what the Greeks and IV actually mean on option contracts. It’ll save you a lot of pain. Also, never compare 2 stocks as if they’re the same. Every time there’s a new squeeze, people say “this is the next GME.” You’re right about one thing, it’s going to shoot up like $GME to some level and then come crashing right back down, leaving a trail of bag holders behind.





