Efe Tanyer · 2026

All writing

Essays and sourced market notes, collected in one place.

Market Guide

Why Bond Yields Move the Nasdaq

A practical framework for understanding how discount rates, duration and expectations reshape technology valuations.

Daily Market Capsule

Oil Tops $90, Technology Faces a Test

Brent reached $90.87 while damage in semiconductor shares persisted. The next test is how the oil shock and earnings from Alphabet, Tesla and Intel will shape technology stocks.

Daily Market Capsule

Oil Surges, Nasdaq Falls

Brent rose to $88.10 as the Nasdaq fell 1.4%. I examine whether June’s inflation relief can protect markets from the renewed pressure in oil and semiconductors.

Daily Market Capsule

The S&P 500 Holds Support, Chips Stay Weak

The S&P 500 held its main support while damage in the Nasdaq 100 and semiconductor shares remained. The next test is whether relief in oil and rates can offset technology selling.

Daily Market Capsule

The End of “If It Has AI, Buy It”

Micron showed strong AI-memory demand, but the Nasdaq 100 did not fully price the optimism. Markets are shifting from buying every AI outlay to asking who can turn spending into profit.

Daily Market Capsule

Micron Revives the AI Trade

Micron delivered a strong answer to two days of panic in AI stocks. Inflation data and price confirmation from semiconductor shares are still needed before calling the correction over.

Daily Market Capsule

AI Stocks Sell Off Hard. All Eyes on Micron

The sharp AI sell-off did not end the theme; it showed that elevated valuations now need exceptional earnings support. Micron is the next important test for the market.

Daily Market Capsule

Risk Shifts to Rates and Technology

The market’s main risk shifted from Hormuz to rates and divergence within technology. Oil eased, but elevated bond yields and volatile space shares are keeping investors selective.

Daily Market Capsule

Oil Fell. The Risk Did Not

Brent fell below $80, but geopolitical risk did not disappear. The key question is whether the oil decline can last and how it will flow through to inflation and technology shares.