S&P 500 Erases $3 Trillion in a Day, $750 Billion an Hour

The S&P 500 wiped out $3 trillion in value today, according to The Kobeissi Letter, which called the session one for the history books. The outlet put the pace of the damage at about $750 billion erased every hour since the market opened. That is a staggering burn rate for a single trading day.

The carnage arrives just one day after a post-election rally that had investors feeling good. Kobeissi's take: that rally now looks like a rounding error next to today's losses. Sentiment flipped hard, and the index gave back ground at a clip few sessions ever match.

The hourly figure is the detail that stings. Three trillion dollars spread across a full session is one thing; $750 billion an hour is a stampede. The outlet's math frames today not as a pullback but as a rout measured in hours, not days.

Kobeissi's post didn't pin the selloff on a specific cause, and the numbers come from the outlet's own tally of the index's move. What it did deliver was scale — a $3 trillion single-day hit that dwarfs the gains markets had been celebrating less than 24 hours earlier.

For now, the takeaway is the size of the hole. A $3 trillion day rewrites the mood fast, and the comparison to yesterday's rally does the heavy lifting on just how violent the turn was. Investors will be staring at the same chart tomorrow.