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Author: Stephen Guilfoyle

Stephen "Sarge" Guilfoyle is the founder and President of Sarge986 LLC, a family run trading operation. An NYSE floor trader for over 30 years, Guilfoyle has served as the Chief Market Economist for Stuart Frankel & Co., the U.S. Economist for Meridian Equity Partners, and as a Vice President in Block Trading and Investment Banking with Credit Suisse over the years. Guilfoyle earned his nickname “Sarge” while serving as an actual sergeant in reserve components of the U.S. Marine Corps, and U.S. Army while simultaneously working on Wall Street. He self-identifies as a day trader, long-term investor, and anything in between. He believes in removing the emotion out of the decision-making process and trusting the data. Look to Guilfoyle to prepare you for the trading day with his popular early morning Market Recon newsletter on TheStreet Pro, which provides a mix of fundamentals, technical analysis, economic commentary and trading ideas.

Tech Trade Gets Thorny; Hynix Hit; U.S. to Ramp Up Fight With Iran?

Avatar photo Stephen Guilfoyle on July 16, 2026

Here’s how I’m handle the tech trade as it gets tough; also, let’s check the latest with Iran, the semis and … some good news on inflationary data.

ASML’s ‘Bull Flag’ and Guidance Has My Attention: Here’s My Plan

Avatar photo Stephen Guilfoyle on July 15, 2026

When a ‘monopoly’ offers expansion plans like this it piques my interest.

Two Charts, Three Buys and a Fourth Attempt

Avatar photo Stephen Guilfoyle on July 15, 2026

Planet Labs and Evolv both sit at critical technical areas. Here’s my trading plan.

Cool CPI, Sharp Warsh, Booming Banks

Avatar photo Stephen Guilfoyle on July 15, 2026

Let’s check on inflation, what Fed Chief Warsh told lawmakers, the banks and my latest take on the chart.

Holding My Nose and Taking a Quantum Leap of Faith on IBM

Avatar photo Stephen Guilfoyle on July 14, 2026

It’s looking ugly out there for ‘Big Blue,’ but here’s why I’m not ready to bail just yet.

Adding to 2 Names as We Hope Third Time’s a Charm on a Sale

Avatar photo Stephen Guilfoyle on July 14, 2026

Stocks, Buy and Sell

A third attempt to trim Rackspace is on deck while we make a couple of buys and prepare for a Friday option expiration.

High-Stakes Fighting in Hormuz; Hostage to Hynix; Fading ‘Memory’ Basket?

Avatar photo Stephen Guilfoyle on July 14, 2026

Here’s how I’m handling my memory/storage trades as DRAM ETF, stocks like SanDisk take a hit; also let’s check Iran, the Fed and bank earnings.

New AMD Price Target as Earnings Estimates Grow

Avatar photo Stephen Guilfoyle on July 13, 2026

Advanced Micro Devices is turning heads on Wall Street with earnings on the horizon.

Selling Rackspace, Buying Ondas Ahead of Earnings Season

Avatar photo Stephen Guilfoyle on July 13, 2026

NYSE traders

We’re using the season before the unofficial start of earnings season to adjust some semi-rancid positions.

Whispers of Black Monday as S. Korean Stocks Sink, Iran Fighting Resumes

Avatar photo Stephen Guilfoyle on July 13, 2026

I don’t think it’s ugly enough for a 1987 repeat, but just the idea can put a trader on edge. Let’s check the latest of the markets, Iran conflict, the Fed.

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