Vanguard Cuts FTSE All-World ETF fee to 0.14%, UBS Global Wealth Report & Taxes for Expats: The Biggest Changes in 2026

Retirement is a time when financial planning becomes critical—there’s less room for error once you’re no longer earning a paycheck.

While mistakes during your working years can often be addressed with higher savings, wage growth, or delaying retirement, the stakes are much higher in retirement.

Withdrawing money during both good and bad market years makes it harder to recover from losses. That’s where Monte Carlo simulations come in. These tools analyze potential outcomes for your portfolio, helping you build a plan that can weather market ups and downs.

Today, Larry dives into how Monte Carlo simulations work. We use Larry’s insights by illustrating how you may use online tools to refine your strategy.

So you have read our comprehensive review of Interactive Brokers (affectionately abbreviated IBKR or even IB by its users) and you have decided to open an account. This guide will walk you through the steps of the process. In some ways, this broker account opening process can be longer than for other brokers. That’s because IBKR is more sophisticated. But, we make this process a bit simpler. In the end going through it is worth the hassle given the benefits the broker may give you in the long run. Let’s get started!

Just 59% of the US stock market’s revenues come from the US, down from 61% at this time last year. South Korea, Taiwan, China, Japan, and the Netherlands also became more international in their revenue sources since our 2025 global revenue study.

What do these markets have in common? They are all home to important artificial intelligence stocks. As companies like Broadcom AVGO, Samsung Electronics 005930, Taiwan Semiconductor Manufacturing TSM, Alibaba Group BABA, Tokyo Electron 8035, and ASML Holding ASML have grown in market value, they have also given their local markets a more global orientation.

AI is a key factor, though not the only one, in many national stock markets becoming more globally interconnected. When Morningstar’s company-level geographic segment data is applied to Morningstar Global Markets Indexes, the majority of countries derive a larger share of revenue from abroad compared with last year. Only 14 markets became more domestic in their revenue orientation compared with last year. Revenue sources are an important consideration for investors as they think about portfolio allocations.