Markets Brace for Mega-Cap Week as Oil and Geopolitics Dominate

The Biggest Story Right Now

Brent crude broke back above $100 per barrel this week. That is the key macro force moving everything. The oil surge is driving a global bond sell-off. Iran said it will halt strikes as long as the US bombing pause holds, giving markets some short-term relief. But the threat of resumed conflict keeps energy prices elevated.

Mega-Cap Earnings in Focus

This week is one of the biggest on the earnings calendar. Microsoft reports Wednesday — its $2.8tn market cap makes it the defining event. Amazon, Apple, and other mega-cap names also report before the week is out. Debt markets are watching too: Meta faces higher borrowing costs on a fresh $12bn data centre financing deal, with investors showing anxiety over rising AI exposure.

Chips: Bulls and Bears at War

Memory names are seeing split options flow. Micron is up 222% year-to-date. Sandisk has surged over 500% in 2026. Both now attract heavy put buying alongside bullish bets. Tesla sits in oversold territory with an RSI of 28 and a 30% year-to-date decline. Analysts are also trimming targets on cable names — Charter Communications faces a double squeeze with 25.9% short interest and a fresh target cut.

European Signals Worth Watching

Swedish investment firm Lundbergföretagen filed ~$94M in purchases of SHB A this week. That is a strong conviction buy from a major institutional holder. European stocks have been volatile, but defense names rallied after Ukraine ratified a $105bn EU loan deal. Hong Kong's exchange relaxed listing rules, adding a tailwind for Asian listings.

Short Sellers Stay Aggressive

Wolfspeed remains the ultimate battleground. Short interest sits at 80.2% of free float with zero shares available to borrow — yet the stock is up 162% in three months. Meanwhile, Columbia Financial (CLBK) saw a 22-point jump in short interest in one week. That is the kind of move that signals either a new bearish thesis or a squeeze waiting to happen.