US index buyers step in at key supports, but rally needs more to shift bias

Buyers have emerged for the S&P and Nasdaq at critical support levels, though the subsequent bounce still lacks the momentum to flip the technical outlook bullish.

In the S&P, buying pressure is concentrated around the 7577.92–7636.33 zone. This range, which once capped gains, is now being tested as a floor and represents the primary risk-defining level for traders. A hold above this area—particularly a push back past 7636.33—keeps buyers in contention. Yet they must still recapture the 100-hour moving average at 7681.09 and the 200-hour moving average at 7694.73 to regain a stronger grip. Dropping below 7577.92 would undermine the technical setup and embolden sellers.

For the Nasdaq Composite, support arrived at the August 24 low of 25,910 and the rising 100-day moving average near 25,945. Together, these form a well-defined support zone and risk threshold for those betting on further gains. Remaining above these levels preserves the longer-term bullish trend. Above, resistance sits at the 100-hour moving average of 26,273.69 and the 200-hour moving average of 26,328.64. To shift the short-term bias, buyers must reclaim these averages. A fall beneath 25,910 would hand sellers more authority and heighten downside risks.

The overall takeaway is that while buyers have successfully held crucial support, they have not yet seized control. Defending a support level is a necessary first step toward a rebound, but it does not amount to a confirmed bullish turnaround. To signal that momentum is turning in their favour, buyers still need to recapture the moving-average resistance above.