Tuesday’s S&P 500 index futures session extended the week’s upward momentum, with buyers building on Monday’s gains despite early volatility.

Overnight trading was mixed, with futures slipping to a low of 6,830 before grinding higher into the open. The regular session opened around 6,857 and saw brief selling pressure mid-morning, but buyers quickly reclaimed control and drove a steady climb through the afternoon.

Momentum accelerated into the final hour, carrying futures back toward the upper end of the day’s range. By the close, S&P 500 index futures settled at 6,871, up 14.75 handles or 0.22%, finishing near the session high.

Trading volume moderated to 1.3 million contracts after Monday’s strong advance, but sentiment remained constructive. The move marked the second consecutive daily gain, leaving the contract up roughly 1.1% over the past five sessions.

Among the top components of the index, Apple (NASDAQ: AAPL) led as the biggest gainer. The iPhone maker advanced $5.82, or 2.16%, to close at $275.25 for the day.

That performance was roughly 9.8× stronger than the broader market’s 0.22% advance, with S&P 500 futures settling at 6,871, up 14.25 handles for the session.

The biggest loser ended up being NVIDIA (NASDAQ: NVDA). For the day, the chipmaker declined $5.89, or 2.96%, to close at $193.16.