S&P 500 is making new ATHs, but volume is noticeably lower compared to the Jan 29 selloff.
u/Round_End_2944 ·
Reddit — r/stocks
· April 16, 2026 at 13:01
· ⬆ 169 pts
· 💬 85 comments
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AI Summary
Summary
The post discusses a technical divergence where the S&P 500 is making new all-time highs but with lower trading volume than during a prior selloff.
The author's thesis is that this low-volume advance, possibly driven by passive inflows and buybacks, raises questions about the strength and sustainability of the rally.
Quality assessment: This is speculative market observation (noise). It identifies a common technical point but lacks rigorous data or historical comparison.
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The S&P 500 is pushing to new all-time highs, but daily volume (looking at SPY as a proxy) appears notably lower compared to the Jan 29 selloff.
During that decline, volume expanded significantly, suggesting broad participation and urgency on the downside. In contrast, the current move higher looks more like a steady grind with lighter participation.
One possible explanation is the growing role of passive inflows and corporate buybacks, which can support prices without the same volume profile. That said, historically stronger breakouts tend to be accompanied by expanding volume and broader market participation.
From a technical perspective, this kind of divergence doesn’t necessarily signal an immediate reversal, but it does raise questions about the strength and sustainability of the move if participation doesn’t improve.