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Market Roundup: March 16, 2026

Markets and economies feel the ripple effects of rising oil prices.

Taking a closer look…

  • Markets continued to react to minute-by-minute developments regarding the ongoing military strikes in Iran. In response to these military strikes, Iran has threatened attacks on oil tankers navigating the Strait of Hormuz. Roughly 20% of the world’s oil and natural gas pass through this narrow, strategic waterway.1

  • Oil prices soared, reaching nearly $120 per barrel, but ended the week around $100.2 The sharp rise and subsequent pullback reflected a market struggling to absorb fast moving developments, from US promises of naval escorts to large strategic reserve releases from several key countries. Markets continue to question whether these strategies will be successful against the backdrop of an escalating military conflict.

  • Higher oil prices lead to higher gasoline prices and that pressure extends beyond the pump. Rising fuel and transport costs could push up the price of food and a wide range of goods in the US, as the full impact of higher oil prices has yet to be realized.

  • How does this all impact markets? Year to date, US stocks have declined, weighed down by recent geopolitical turmoil and surging oil prices. In contrast, international stocks remain positive, supported by improving fundamentals and a softer US dollar. Bonds have remained flat, but other diversifiers like commodities and real estate investment trusts (REITs) have been up, helping to temper widespread volatility.3
Scott McAdam

Institutional Portfolio Manager, Strategic Advisers


"Just like we saw in 2025, the power of diversification is one of the most compelling investment stories so far this year. A well-diversified portfolio that includes global stocks, bonds, cash, and exposure to ‘diversifiers’ like commodities, has delivered a smoother investment experience than a portfolio of US stocks alone. I believe this is an effective way to counter uncertainty and stick to an investment plan."

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1. US Energy Information Administration, June 2025. 2. Bloomberg, Brent Crude Future, May 2026 expiry, as of March 13, 2026. 3. As measured by the Dow Jones US Total Stock Market Index, MSCI All Country World ex USA Index, Bloomberg US Aggregate Bond Index, Bloomberg Commodity Index, NAREIT Equity-Only Index, respectively, as of March 12, 2026. Investing involves risk, including risk of loss. Past performance is no guarantee of future results.

Diversification and asset allocation do not ensure a profit or guarantee against loss.

Indexes are unmanaged. It is not possible to invest directly in an index. The ICE Brent crude future is based on a basket of North Sea crudes and has evolved to incorporate new grades, ensuring its ongoing utility to oil markets. The ICE Brent Crude futures contract is a physically deliverable contract with an option to cash settle against the ICE Brent Index price, which is calculated the day after the last trading day of the futures contract. The ICE Brent Index represents the average price of trading in the prevailing North Sea physical market for the relevant delivery month. The Dow Jones U.S. Total Stock Market Index is an unmanaged market capitalization-weighted index of over 5,000 U.S. equity securities which contains all actively traded common stocks with readily available price data. The MSCI ACWI ex USA Index (Net MA Tax) is a market capitalization-weighted index that is designed to measure the investable equity market performance for global investors of large and mid cap stocks in developed and emerging markets, excluding the United States. Index returns are adjusted for tax withholding rates applicable to U.S. based mutual funds organized as Massachusetts business trusts (NR). The Bloomberg U.S. Aggregate Bond Index is an unmanaged market value-weighted index for U.S. dollar denominated investment-grade fixed-rate debt issues, including government, corporate, asset-backed, and mortgage-backed securities with maturities of at least one year. The Bloomberg Commodity Index Total Return measures the performance of the commodities market. It consists of exchange traded futures contracts on physical commodities that are weighted to account for the economic significance and market liquidity of each commodity. The NAREIT Equity-Only Index is the unmanaged National Association of Real Estate Investment Trusts (NAREIT) Equity Index, a market-value-weighted index based upon the last closing price of the month for tax-qualified REITs listed on the NYSE. The views expressed in the foregoing commentary were prepared by Strategic Advisers LLC (Strategic Advisers), based on information obtained from sources believed to be reliable but not guaranteed. Unless otherwise noted, the opinions provided are those of the authors and not necessarily those of Fidelity Investments. This commentary is for informational purposes only and is not intended to constitute a current or past recommendation, investment advice of any kind, or a solicitation of an offer to buy or sell any securities or investment services. The information and opinions presented are current only as of the date of writing, without regard to the date on which you may access this information. All opinions and estimates are subject to change at any time without notice.

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