Markets entered last week on fragile footing. In our previous Sunday note, we emphasized how negative dealer gamma, extreme put skew, and heavy 0DTE options activity set the market up for a trapdoor scenario. This created a market structure vulnerable to sharp drops and spikes in volatility, as we saw play out last week. The dramatic […]
dealer positioning
The Options Market Trapdoor
Over the past week, the topic of volatility has returned to the forefront. While the market has been largely range-bound, underlying support remains tenuous. Simultaneously, traders have begun more actively paying for downside protection. Given the backdrop of flaring geopolitical conflict, we see assymetric downside risk forming as trader uncertainty and negative gamma threaten to unlock the […]
Right Tail Risk Is Building in the S&P 500
The market spent most of last week locked in the SPX 6,800–6,900 range that has largely held since Thanksgiving. Wednesday’s VIX expiration and Friday’s monthly OPEX defined the week’s rhythm, while negative gamma positioning and elevated single-stock put demand maintained pressure under the surface. Our historical OPEX data suggests the market is positioned for a […]
Nomura Gamma Update 5/1/20
From MarketEar: What about those CTAs and gamma dealers here? Yesterday people were quoting Nomura’s quant and his take on positioning: “…now increasingly outright ‘long gamma’…less spastic market moves” Per our post yesterday “Where is that long gamma today…” we pointed out; “Watch the downside should they “flip” to short gamma again….back to magnifying the […]
FED, TRUMP, Gamma Trap: Crazy Trading Day 8/23/19
Fed gave a speech that was “volatility dampening” at 10AM. Trump didn’t like what the Fed had to say so he started tweet-trashing the Fed and China triggering a “gamma trap“. Stock markets were just at the volatility trigger level of 2920 (black horizontal line) so the gap down flipped the trigger and dealers were […]




