📊 Weekly Market Scoreboard
Week ending March 13, 2026
🏢 Sector Heatmap
🔎 The Week That Was
The major indexes took a beating this week, with the S&P 500 dropping 2.41% to 6,632.19 while the Nasdaq fell 2.60% and small-cap Russell 2000 got hit hardest at -2.88%. It was one of those rare weeks where you could count the winning sectors on one finger—actually, just one finger, since only Energy managed to stay green.The sector rotation told the story of nervous investors fleeing growth and cyclicals for defensive plays. Energy rocketed 2.45% higher on geopolitical uncertainty and oil price swings, while Utilities barely stayed positive at +0.23%. Meanwhile, the economically-sensitive stuff got crushed: Industrials down 3.68%, Consumer Discretionary off 3.26%, and even typically resilient Healthcare falling 2.90%.
This week's selloff suggests investors are worried about something—whether it's growth concerns, valuation jitters, or just profit-taking after what's been a strong run into 2026. The fact that defensive Energy and Utilities were the only safe havens, rather than traditional bonds and staples, points to oil market uncertainty being both a risk and an opportunity as we head into next week.
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🟢 Top 5 Winners
🔴 Top 5 Losers
📈 What Drove the Moves
Micron absolutely crushed it this week, surging 9.45% to $426.13 and claiming the top spot among winners. The memory chip maker likely benefited from Tesla's announcement of a massive chip factory launching next week—anything that screams "AI infrastructure" and "chip demand" has been rocket fuel for semiconductor stocks. Cloudflare (+5.44%) and CrowdStrike (+1.76%) also bucked the trend, suggesting cybersecurity and cloud infrastructure remain investor favorites despite the broader tech selloff.On the losing end, it was a bloodbath for growth names that investors have started questioning. Roblox cratered 9.94% to $56.42, DoorDash dropped 8.62%, and Unity fell 8.56%—all high-multiple companies that struggle to justify valuations when the market gets skittish. Shopify's 7.90% tumble and Atlassian's 8.33% decline rounded out the losers list, showing that even quality SaaS names couldn't escape the growth-stock exodus.
The winners-losers split tells a clear story: investors are rotating into infrastructure plays with real earnings power (chips, cybersecurity) and dumping speculative growth names with stretched valuations. That's typically what happens when people start worrying about the economic outlook.
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🔭 What to Watch This Week
With markets closed for the weekend, investors have time to position ahead of what should be an eventful week. Keep an eye on any earnings reports from retailers or chipmakers, as the Micron rally and consumer discretionary weakness suggest these sectors are at inflection points. Wall Street will be parsing every data point for signs of whether the AI infrastructure buildout continues or if consumer spending is genuinely softening.Beyond earnings, next week's focus will be squarely on oil markets and the Iran situation referenced in Friday's headlines. The paradox of "historic oil reserve releases" coinciding with predictions of "climbing crude prices" will either resolve itself or create more volatility for Energy stocks. Given that Energy was this week's only winner by a country mile, that sector could drive the whole market's direction.
Also worth watching: any developments on the Fertitta-Caesars talks and whether Berkshire's resumed buybacks signal that Warren Buffett sees value at these levels. If the Oracle of Omaha is buying back stock, it might be a sign that this selloff is overdone—or it might just mean Berkshire shares are cheap relative to his other options.