The S&P/ASX 200 is poised to open lower, weighed down by a reversal in US equity markets where technology stocks are exerting significant downward pressure.

Despite broader gains across Wall Street indices, the underperformance of key tech names has kept the S&P 500 largely flat, erasing early session losses and signaling caution among global investors.

This divergence highlights the continued sensitivity of global markets to US tech valuations.

While the Dow Jones Industrial Average and other broad indices managed to post gains, the drag from the technology sector prevented a more decisive rally.

The mixed performance in the US suggests that risk appetite remains fragile, with investors rotating away from high-growth tech names amid broader uncertainty.

For Australian markets, the implications are direct.