Tuesday’s session in the S&P 500 index futures screamed risk-off, with tech heavyweights absorbing the brunt of selling pressure.

Overnight, fairly muted action saw bulls clinging to support near Monday’s low. The regular session opened slightly red, with early volatility giving way to a brief buyer push that grazed the premarket high of 6477.50. The rally fizzled fast as sellers triggered a sharp plunge, cracking Monday’s low and retesting it before diving deeper. 

After a fairly consistent decline, bulls finally drew a line at 6419.25 in the final hour, where short-covering and buy-the-dippers trimmed some losses. The session closed in the lower half of the day’s range at 6432.50, down 36.75 handles. 

Wednesday brings more retail earnings, mostly in the morning, and July’s FOMC meeting minutes at 2:00 PM ET. 

Berkshire Hathaway Inc (NYSE: BRK.B) snagged the biggest win among top components, climbing $6.79, or 1.42%, to close at $485.31.

That outpaced the cash index’s 0.54% drop by nearly two percent. 

Broadcom Inc (NASDAQ: AVGO) slumped as the biggest loser, shedding $10.85, or 3.55%, to close at $294.91, dragged by sector weakness.