Marcus Bell
Marcus Bell writes about markets, macro and risk at PortfolioTrackr: concentration, volatility, and what market history teaches investors about managing exposure.
Articles by Marcus, page 2 of 2
Rising Sovereign Yields: What Higher Rates Do to Your Bonds
Rising government yields hit bond funds and rate-sensitive stocks. See how duration works, what falls first, and how to check your own exposure.
US Strikes Iran Near Hormuz: What It Means for Oil and Your Portfolio
US forces struck Iranian launchers near the Strait of Hormuz on Aug 31 and oil is climbing. Here is what you can and cannot know, and what to check now.
Gold Steadies After Selloff as Warsh Revives Fed Hike Bets
Gold stabilized after a sharp drop when Warsh's Jackson Hole comments lifted rate-hike odds. Here's how to check your exposure and set alerts now.
Iceland Rejects EU Talks: What It Means for Your Portfolio
Icelandic voters said no to restarting EU accession talks. What retail investors should check on exposure, currency and Nordic holdings right now.
Leveraged ETFs: Why 2x and 3x Funds Wreck Portfolios
Leveraged and inverse ETFs decay over time and amplify losses. Here's how they really work, why South Korea is cooling them down, and how to spot the risk.
One Stock, Too Much Risk: How to Spot Overconcentration
Turkey just capped concentrated hedge-fund positions. Here is why holding too much in one name hurts retail portfolios, and how to catch it early.
The Woodford Collapse: How to Spot Illiquid Holdings You Own
The Woodford fund trapped billions in hard-to-sell assets. Here's how to check your own portfolio for liquidity traps and dangerous concentration.
A Stronger Dollar Is Coming: What It Does to Your Foreign Stocks
A rising dollar quietly erodes returns on non-USD holdings. Here's how to see the FX hit on your portfolio and get alerted before it bites.
Chip Tariffs Are Coming: How Exposed Is Your Portfolio?
Semiconductor tariffs could hit chip stocks and the ETFs that hold them. Here's how to find your real exposure and watch the names that matter.
The AI Compute Boom Is Hiding in Your Portfolio's Blind Spots
RUM's $13.7bn GPU deal shows how fast AI infrastructure money moves. Here's how to find your real exposure and spot when one theme owns too much.
When Private Assets Freeze: Spotting Illiquidity Risk in Your Portfolio
German pension funds got burned on private markets. Here's how to check your own illiquid exposure and why stale valuations hide real risk.
Fund Managers Say Gold Is Undervalued: Gold as a Hedge Explained
BofA's August survey shows managers betting gold is cheap despite the dip. Here's how retail investors can hedge with gold ETFs during the bond sell-off.
How Much Apple Do You Really Own Across Your Funds?
Find your true AAPL exposure hidden inside index funds, and set an alert so you know before the next Apple headline hits your portfolio.
Trailing Stops vs Bracket Orders: How They Differ
The real difference between stop-loss and take-profit orders, when trailing stops help, and why alerts beat broker orders for long-term investors.
Apple's China Chip Risk: What the Memory Squeeze Means for AAPL
A US push to keep Chinese memory chips out of iPhones adds supply-chain risk. What it means for Apple, memory suppliers, and your ETF exposure.
FDA Decision Days: How Biotech Catalysts Work and How Investors Track Them
FDA rulings can double or halve a biotech stock. See how to set price alerts around a catalyst, size volatile positions and cap trial-failure losses.
When Rising Oil and Yields Hit Stocks and Bonds Together
Why an oil-plus-rates move can bruise both your equity and bond sleeves at once, and how to watch USD exposure, duration risk, and volatility.
Gold Is Rallying: How to Track a Gold Allocation
How to add gold ETFs as a diversifier next to your stocks and crypto, and set price alerts so you catch the moves that matter.
When a Stock's Fundamentals Turn: The 3 Numbers to Watch
The P/E, EPS and debt-to-equity shifts that warn a held position is deteriorating before the price does, and how to keep an eye on them.
BHP Port Hedland Strike: Check Your Iron Ore Exposure
A Port Hedland strike can move every iron-ore miner you hold. Here's how to find your real exposure to BHP and materials before the price does.
Is 40% of a Portfolio in Tech? Understanding the Risk
What sector concentration really costs you, how to see your true tech exposure, and the allocation targets most retail investors should aim for.
Currency Intervention and Bonds: Why Your Yields Just Shifted
FX intervention hits long-dated bonds first. See what that means for your allocation and how to follow bond exposure across currencies.
Why AML Fines Move Bank Stocks and What to Watch Next
What a $125M fine actually does to a bank's share price, and the compliance signals long-term investors should watch before the headline hits.
How Fed Messaging Moves Your Rate-Sensitive Stocks
Why Fed communication swings rate-sensitive sectors, and how to check your exposure to those holdings before the next FOMC meeting.
How Much of Your Portfolio Is Really Riding on AI Stocks?
Measure your AI-stock concentration against the S&P 500, set valuation alerts, and stress-test your allocation before the next drawdown hits.
Tracking Short Positions: Why Most Apps Get the P&L Wrong
Shorts profit when prices fall, so your P&L math flips and your stop-loss sits above entry. Here's how to track them right beside your longs.
A Weaker Dollar Just Changed Your Foreign Stock Returns
Why a falling dollar quietly boosts or drains returns on your non-USD holdings, and how to see your real currency exposure across every market.
AI Market Correction: Screen Your Semiconductor Risk
Fitch warns of AI credit risk as chipmaker stocks fall. Spot semiconductor overexposure in your portfolio and set price alerts with PortfolioTrackr.
Fed Decisions & Rate-Sensitive Stocks: Portfolio Planning
See how Fed rate decisions move stocks, model portfolio sensitivity, stress-test dividends, and set alerts on Treasury yields hitting banks and utilities.
Filter European Stocks by Energy Risk & Set Smart Alerts
Identify energy-intensive European stocks on DAX and Spanish markets, set alerts for industrial energy price exposure, and rebalance vulnerable sectors.
Stablecoin Sanctions Risk: Understanding Freeze Exposure in Your Portfolio
See how Tether freezes sanctioned wallets, spot geopolitical risks in stablecoins, and set price alerts near each coin's peg to gauge freeze exposure.
AI Stocks 2026: Where the Valuations Stop Making Sense
Some AI names are priced for perfection and some are not. The multiples, the revenue actually arriving, and how concentrated your portfolio quietly became.
Rebalancing AI Stock Losses: How Stop-Losses and Tax Strategies Work
See how stop-loss placement, tax-loss harvesting, and alerts help manage AI stock corrections and rebalance tech selloffs without panic selling.
Fed Chair Warsh's Hawkish Stance: 2026 Portfolio Impact
Learn how Kevin Warsh's inflation-fighting stance affects stocks, bonds, and crypto. Monitor rate-sensitive holdings with real-time tracking strategies.
Fed Chair Change: What Retail Investors Need to Know
See how Kevin Warsh's Fed leadership shapes rate expectations, crypto volatility, and rebalancing strategies before major announcements.
Track OpenAI Stock Post-IPO: Setup Guide & Portfolio Integration
Learn how to monitor OpenAI's 2026 IPO, set up price alerts, understand share classes, and integrate private equity holdings into PortfolioTrackr.
Geopolitical Risk: Understanding How Global Tensions Affect Portfolios
Learn how geopolitical events like Iran-US conflicts affect energy stocks and shipping costs. Use price alerts to watch your energy and shipping holdings.
Track IPO Dilution Risk: Monitor Insider Share Issuance
Set alerts for equity offerings and measure dilution impact on your portfolio from companies like SpaceX and Anthropic when they raise capital.
Detect Overvalued Sectors with AI Stock Screening
See how PortfolioTrackr's fundamentals panel, with AI analysis on Pro and Lifetime, flags stretched valuations and sets price alerts at your own levels.
AI Portfolio Concentration: Balance Tech Exposure in 2026
Learn how to track AI-heavy positions like Nvidia without over-concentration risk. Master sector limits to avoid the frothy AI bubble trap.
Oil Price Alerts: Track Energy Stocks During Middle East Tensions
Monitor oil prices, energy stocks, and shipping ETFs during geopolitical events. Learn how to set price alerts in PortfolioTrackr for fast market moves.
Track AI & Semiconductor Stock Momentum Into 2026
Set profit-taking alerts for Nvidia, AMD, and Intel positions, see unrealized gains on tech holdings, and gauge growth sector momentum into 2026.
Geopolitical Risk: Real-Time Portfolio Hedging Strategies
See how geopolitical shocks shift your allocation, where sector concentration builds, and how price alerts flag energy and industrial exposure.
AI Chatbots Transform Stock Research for Modern Investors
Discover how investors now use Claude and ChatGPT for financial research. Learn why AI chatbots are reshaping stock analysis and investment decisions.
How to Read Stock Fundamentals Inside Your Portfolio Tracker (2026)
PortfolioTrackr shows P/E ratio, EPS, market cap, and revenue growth for your positions. See what each metric means and how to read it.
How to Track Portfolio Sector Allocation and Diversification (2026)
See how sector allocation reveals where your portfolio is concentrated, and how a sector breakdown helps you manage risk and diversification.
Stop Loss vs Take Profit: How to Set Smart Price Targets
See how stop loss and take profit orders differ, how to set smart price targets, and how to automate alerts when your levels are hit.