Gap Up Into the 50-Day — SPX Morning Note, Jul 21, 2026

Key numbers

7,469.98: Premarket

SPX is trading 7,470 premarket — 27 points above yesterday's close and 4 points above the 50-day SMA at 7,466. The gap clears a level that's acted as resistance for the past week. Before getting aggressive long, a backtest of the 7,443–7,450 zone holding would go a long way.

Context is mixed. The U.S. carried out a tenth consecutive night of strikes on Iran, but ceasefire talk helped ease oil prices overnight. Trump announced 50% tariffs on a range of Canadian goods — milk, hockey equipment, beer, plywood — effective in 30 days, though energy, autos, and metals are excluded. Asia ripped — MSCI Asia Pacific up 1.7%, Nikkei up 2.2%, South Korea and Taiwan both up over 2.5% on chip strength. VIX is indicated around 17.5, down from Monday's 18.65 close. GM reports before the bell. Alphabet and Tesla after the close Wednesday.

We're 85 points below the gamma flip at 7,555. Negative gamma. The call wall at 7,545 is 75 points above premarket. The put wall at 7,410 is 60 points below. The 8 EMA daily at 7,499 is 29 points above — that's the next overhead reference.

If the 50-day at 7,466 holds on a backtest, the 8 EMA at 7,499 is next. If the gap fills and 7,443 breaks, the put wall at 7,410 is the anchor below.

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Big Picture Levels

7,260: 21-week EMA. Only Friday's close matters.
7,196: 20-week SMA.
7,156: 100-day SMA.
6,991: 200-day SMA.

Today's Trading

Primary range: 7,445 – 7,494
7,555: Gamma flip. The regime line.
7,545: Call wall. Magnet. Ceiling.
7,513.95: Prior demand. Resistance.
7,505.64: Prior demand. Resistance.
7,499.47: 8 EMA (daily) area.
7,497.24: 8 EMA (daily) area.
7,494.06: Ceiling. 13 EMA (daily) area.
7,488.18: 21 EMA (daily) area.
7,481.01: 20 SMA (daily) area.
7,476.82: 20 SMA (daily) area.
7,469.98: Premarket.
7,465.50: 50-day SMA area.
7,457.31: Multi-session support.
7,451.25: Multi-session support.
7,446.92: Support.
7,444.78: Floor. 8-week EMA area.
7,440.37: 8-week EMA.
7,436.60: 8-week EMA area.
7,429.22: Multi-session support.
7,425.57: Multi-session support.
7,419.43: Multi-session support.
7,412.42: Put wall area.
7,410: Put wall.
7,400.24: Multi-session support.

GEX Profile (July 21, 2026)

Call Wall: 7,545. 75 points above premarket. Magnet in negative gamma, but a lot of ground to cover.
Gamma Flip: ~7,555. 85 points above at 7,555. Deep in negative gamma territory.
Put Wall: 7,410. 60 points below at 7,410. If the gap fills and yesterday's close breaks, that's the next stop.

Call wall, gamma flip, put wall — what they mean and why they run the session.

Execution Levels

Long Plan

Entry	Why	Targets
Dip Buy: 7,466	Support. 4 points below premarket.	7,476 (20 SMA), 7,487 (21 EMA), 7,498 (13 EMA)
Second Bid: 7,457	Support.	7,476 (20 SMA), 7,487 (21 EMA), 7,498 (13 EMA)
Deep Bid: 7,410	Put wall. Dense negative gamma.	7,426, 7,440 (8w EMA), 7,451
Extreme: 7,400	Support. Deep negative gamma.	7,412, 7,426, 7,440 (8w EMA)
Reclaim: 7,494	Through the gamma flip. Call wall right above — reclaim IS the breakout.	7,506, 7,514, 7,545 (call wall)
Continuation: 7,545	Through the call wall. New territory.	7,555 (flip)

Short Plan

Entry	Why	Targets
Fade pops to: 7,481-7,497	Resistance approaching the call wall.	7,466 (50-day SMA), 7,457, 7,440 (8w EMA)
Below 7,410	Loss of the put wall. Negative gamma accelerating.	7,385, 7,369, 7,360
Breakdown: 7,400	Multi-session support.	7,385, 7,369, 7,360

How the entry tiers and targets are built: the SPX 0DTE strategy guide.

VIX Levels

16.65
17.11 key
17.15
18.01 key
18.40
18.48
19.27
19.35 key

Educational research, not investment advice. Levels and the plan describe how the desk framed that session and are published after it closed.