Futures have pulled back some to 4260. Resistance shows at 4300 to 4310 (SPY 430). Support is at 4260 (SPY 425) to 4250, then 4210. We see both 4300 & 4200 in play for today’s session, based on SG’s implied move of 1.16%.
The S&P is up ~11% from July OPEX to today (+16% from June lows!) and Friday brought the first <20 VIX close since mid April. Our view here is that markets are somewhat priced for perfection with IV compressed and large call positions set to expire this week. While we anticipate volatility remaining contained this week, both VIX exp & OPEX could trigger some selling into next week. We do not think the 4300 Call Wall rolls higher before Friday’s expiration.
Heading into today we saw the biggest pickup in call gamma since that Mid-April time frame wherein the SPX topped out around 4600. Our gamma tilt indicator (below) measures put gamma/call gamma, and as you can see the indicator surged as call gamma pushed a second leg higher in markets (blue arrow to red arrow). We view the initial move higher (into the blue arrow) resulting from put destruction, and again, a build in calls fueling last weeks move >4200.

This bullish momentum has pushed our Risk Reversal metric to -0.04 which is “max bullish”. This suggests that 30 DTE, OTM puts priced are at their lows relative to equivalent calls. Some traders are also flagging the spike in the SKEW index, too (h/t TME) as a signal that put prices have hit lows.

While we don’t offer trading advice, we would note that sometimes the reason to buy options is simply because they are cheap, and based on some skew metrics puts may fit that category.
Lastly, as we noted at the top of the post we view this weeks VIX expiration/equity expiration as a trigger for volatility into month end. Below we’ve plotted gamma by expiration for the S&P, and you can see how large the call position is (navy blue) for this Fridays exp (8/19). The idea here is that with ATM call positions expiring there is less stability for the market, which may lead to some equity drawdowns.

SpotGamma Proprietary SPX Levels | Latest Data | SPX Previous | SPY | NDX | QQQ |
---|---|---|---|---|---|
Ref Price: | 4279 | 4273 | 427 | 13565 | 330 |
SpotGamma Imp. 1 Day Move: Est 1 StdDev Open to Close Range |
1.16%, | (±pts): 50.0 | VIX 1 Day Impl. Move:1.23% | ||
SpotGamma Imp. 5 Day Move: | 2.88% | 4279 (Monday Ref Px) | Range: 4156.0 | 4403.0 | ||
SpotGamma Gamma Index™: | 1.53 | 1.05 | 0.08 | 0.02 | 0.01 |
Volatility Trigger™: | 4145 | 4000 | 424 | 12790 | 322 |
SpotGamma Absolute Gamma Strike: | 4300 | 4200 | 430 | 12500 | 330 |
Gamma Notional(MM): | 460.0 | 651.05 | 159.0 | 2.0 | 23.0 |
Additional Key Levels | Latest Data | Previous | SPY | NDX | QQQ |
---|---|---|---|---|---|
Zero Gamma Level: | 4192 | 4154 | 0 | 0 | 0 |
Put Wall Support: | 4000 | 3900 | 400 | 11000 | 300 |
Call Wall Strike: | 4300 | 4300 | 430 | 14000 | 335 |
CP Gam Tilt: | 1.56 | 1.49 | 1.06 | 1.19 | 1.02 |
Delta Neutral Px: | 4118 | ||||
Net Delta(MM): | $1,827,982 | $1,804,829 | $208,731 | $55,075 | $111,563 |
25D Risk Reversal | -0.04 | -0.05 | -0.04 | -0.06 | -0.05 |
Call Volume | 429,029 | 610,718 | 1,278,425 | 4,319 | 535,253 |
Put Volume | 855,235 | 895,617 | 2,337,242 | 5,119 | 792,633 |
Call Open Interest | 6,062,078 | 6,310,859 | 7,423,375 | 53,458 | 4,236,725 |
Put Open Interest | 10,947,409 | 10,668,640 | 13,620,712 | 69,759 | 7,345,916 |
Key Support & Resistance Strikes: |
---|
SPX: [4300, 4250, 4200, 4000] |
SPY: [430, 425, 420, 415] |
QQQ: [335, 330, 325, 320] |
NDX:[14000, 13500, 13000, 12500] |
SPX Combo (strike, %ile): [4301.0, 4348.0, 4249.0, 4399.0, 4322.0] |
SPY Combo: [429.24, 433.93, 424.11, 439.06, 431.37] |
NDX Combo: [13756.0, 13552.0, 13349.0] |






