Walmart's 9.8% Single-Day Drop Dominates August 20 Session
As seen on the 24/7 Wall St. homepage on August 20, 2026.
A near 10% single-day drop in a mega-cap retailer like Walmart, closing at $103.10, is the kind of move that rarely shows up on a leaderboard next to small caps. Marathon Digital ran the other way, up 13.37%, with Cipher Mining also in the green.
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Walmart closing at $103.10 on a 9.8% decline is an unusual event for a company of its scale. Mega-cap retailers of this size rarely post single-session losses that approach double digits, and when they do, it tends to ripple through broader consumer sentiment and index-weighted portfolios that carry the stock in meaningful size.
On the same day, the session's biggest gainers were concentrated almost entirely in speculative and crypto-adjacent names, with Marathon Digital up 13.37%. That points to a very different risk appetite from what drove Walmart's selling pressure.
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Tempus AI gained 8.54%, with Applied Optoelectronics and fuboTV also higher. Those gains span AI infrastructure, optical networking, and streaming, sectors with little in common beyond buyers showing up for smaller, higher-volatility names while rotating away from defensively perceived large caps.
On the losing side, iQIYI fell 7.96%, with Archer Aviation, Upstart, and IonQ also lower. The losers list spans Chinese streaming, aviation, fintech lending, and quantum computing, and Walmart's drop remained the session's defining data point by a wide margin.