Futures are down 75bps to 4285 which indicates we start the session in a negative gamma position. Accordingly, our 1 day SG max move is much higher than last weeks readings at 1.1%. The official gamma flip points are coming in at 4335 but we suggest using 4300 as the key “risk off” level. This is due to fairly large open interest at that strike, which also makes it first resistance this morning. Key levels today are 4300, 4335 (gamma flip) to the upside, with 4240 downside support. We certainly see the setup for weakness today, but not an massive drop (as per SG implied move of ~1%)
Monitoring implied volatility[IV] (ie VIX) today will be critical. Any drop in IV, particularly with a break back above 4300 could lead to a very sharp rally which takes us right back to all time highs over the next few sessions. Because of this elevated volatility this is a market that likely cannot remain “flat”. If price action pauses that likely leads to a drop in IV and a short cover rally.
Conversely a spike in IV suggests traders are adding short protection which should lead to strong selling. We do see 4240 as the limit for downside today, with a large air pocket beneath that to 4150.
As shown below the current gamma models suggests that we don’t see much positive gamma unless we return to 4400, and therefore volatility should remain high until/unless we revisit that price level.

The vanna model is also displaying this high volatility setup, you can see how much the skew of this model has changed from Friday (light overhead resistance) to today (dealers selling downside, buying rallies):

VIX expiration is on Wednesday AM which could play in as a catalyst this week. We also have the “retail short put position” that we flagged this weekend.
Our bottom line is this: a close above 4300 give bulls control. Beneath that level leaves markets in a “risk off” stance.
Model Overview:
July OPEX today, new ranges setup next week.
SpotGamma Proprietary Levels | Latest Data | Previous | SPY | NDX | QQQ |
---|---|---|---|---|---|
Ref Price: | 4303 | 4316 | 431 | 14671 | 357 |
SpotGamma Imp. 1 Day Move: | 1.13%, | 49.0 pts | Range: 4254.0 | 4352.0 | ||
SpotGamma Imp. 5 Day Move: | 4303 | 2.02% | Range: 4217.0 | 4390.0 | ||
SpotGamma Gamma Index™: | -0.30 | 0.89 | 0.13 | -0.11 | -0.02 |
Volatility Trigger™: | 4340 | 4345 | 432 | 15040 | 357 |
SpotGamma Absolute Gamma Strike: | 4350 | 4350 | 435 | 14450 | 360 |
Gamma Notional(MM): | $-404 | $-417 | $-604 | $-6 | $-437 |
Additional Key Levels | Latest Data | Previous | SPY | NDX | QQQ |
---|---|---|---|---|---|
Zero Gamma Level: | 4336 | 4325 | 0 | 0 | 0 |
Put Wall Support: | 4335 | 4000 | 430 | 14690 | 355 |
Call Wall Strike: | 4400 | 4400 | 437 | 15500 | 361 |
CP Gam Tilt: | 0.92 | 0.81 | 0.85 | 0.76 | 0.77 |
Delta Neutral Px: | 4186 | ||||
Net Delta(MM): | $1,306,373 | $1,399,339 | $170,842 | $37,810 | $78,939 |
25D Risk Reversal | -0.07 | -0.07 | -0.07 | -0.06 | -0.06 |
Top Absolute Gamma Strikes: |
---|
SPX: [4350, 4300, 4250, 4200] |
SPY: [437, 436, 435, 433] |
QQQ: [362, 361, 360, 355] |
NDX:[14800, 14700, 14690, 14450] |
SPX Combo: [4375.0, 4324.0, 4406.0, 4276.0, 4423.0] |
NDX Combo: [14421.0, 14655.0, 14670.0, 14216.0, 15021.0] |
