SNDK｜9/18 Expiration Cycle Watch Comparing with yesterday's records, the Call Wall has shifted down from 1600 to 1570. In the short term, let's first see if this level can be reclaimed. Keep an eye on 1550, 1520, and 1500 below. If 1570 can't be reclaimed, focus on the support at 1550 first; if 1550 breaks and the rebound fails to hold, then look at the next two levels below. 1605 shows a clear concentration of negative Gamma. When the price approaches this area, pay close attention to overall GEX and actual buying activity. For now, don't directly define it as a "post-breakout inevitable reversal" zone. SNDK