The $40 Trillion Trap: Why America’s War Matters to Every Indian Investor
Imagine a man who has borrowed heavily, picked a fight he cannot easily walk away from, and now finds his lenders asking for more interest every week. That, in simple terms, is America in September 2026.
The war with Iran began on 28 February. Seven months later, Iran still controls the Strait of Hormuz, the narrow sea lane that carries about a fifth of the world's oil. The Pentagon (headquarters of United States Department of Defense) has spent $45.1 billion so far and wants at least $200 billion more. America's total debt has crossed $40 trillion, and the yearly interest bill alone is now above $1 trillion.
Here is the twist. Walking away does not solve America's problem, because the pain comes from oil prices, and oil stays expensive as long as Hormuz stays shut. Fighting on means borrowing more. Either way, the lenders, the bond market, keep raising the price of money. This is the story of how that plays out, and why Indian investors are feeling it too.
Chapter 1: The fuel that moves everything
Most of us think of petrol when oil prices rise. The bigger story is diesel. Diesel runs the trucks that bring vegetables to your market, the tractors on farms and the generators in factories. When diesel gets expensive, almost everything gets expensive.
Source: YCharts (Twitter post)
The war has cut diesel supply from two directions at once. Between March and August, the Middle East shipped about 835,000 fewer barrels of diesel a day than a year earlier, and Russia shipped about 377,000 fewer. Russia now recently announced (on 29th September) that it plans to keep its diesel export ban until the end of October.
The result is a worldwide shortage. US diesel prices have more than doubled since January, and Washington is considering stopping its own diesel exports for 90 days. Europe's main storage hub was 16% below normal in July, and around one in nine French petrol pumps ran dry. The US energy agency expects low stocks to last through most of 2027. So, this is not a one-month spike; it is inflation that sticks.
Chapter 2: When the dollar let go of gold
There was a time when every US dollar was backed by gold. America could only create as much money as its gold vault allowed. In August 1971, President Nixon cut that link. From then on, the dollar was backed only by trust: trust in the Federal Reserve, and trust that lenders would keep buying US government bonds.
America used that freedom generously. The government borrows to cover its deficits, and in 2008–14 and 2020–22 the Fed bought much of that debt with newly created money, a process called ‘quantitative easing’. Government spending has been up about 60% since 2020, says BofA, and the debt pile has grown to $40 trillion. While prices stayed calm, nobody worried much. Meanwhile, American families have taken more allocations into a booming stock market, as Chapter 3 shows.
The war changed the rules. With diesel pushing prices up, the Fed cannot print money to buy bonds; it is raising interest rates instead (first time in last 12 quarters at 4% in Sept-26).
The Treasury tried to calm lenders by buying back some of its own long-term bonds (20-30 years), even tripling the buyback to $6 billion on 24th September. Yields rose anyway. Normally, when a borrower buys back its debt, the interest it pays should fall. It did not, because lenders fear that inflation will eat into their returns, and $6 billion is tiny next to a $30 trillion bond market held by public.
Click here for the link to the article of BoFA
This chart from Bank of America shows the damage. In six years, the price of America's 30-year government bond has fallen about 60%, even as the US economy grew 63% in dollar terms. Anyone who bought these "safe" bonds in 2020 has lost more than half their money on paper. As BofA's Michael Hartnett put it, "policymakers never run out of ammunition. But they can run out of credibility."
Chapter 3: Where American families are putting their savings
If lenders are shying away from government bonds, where is the money going? The Federal Reserve's own records of household finances give a clear answer: into the stock market.
In 2023, when bond yields first jumped, families bought $778 billion of Treasuries. By 2024 that had almost stopped, while stock purchases tripled to $1.4 trillion. Money has kept draining out of savings and fixed deposits, and out of old-style mutual funds, often into ETFs, which count as stocks here.
The pace has picked up in 2026. In the first quarter, families were buying stocks at a yearly rate of about $2 trillion, the fastest in the table. Rising prices everywhere feed the habit: global shares are up 57% since the start of 2024, and every gain makes families feel richer and more willing to buy. There is one early sign of change. With yields above 5% (as shown in the image below), families bought Treasuries at a $745 billion yearly pace in the second quarter. Even so, stocks still took more.
Source: Twitter post link of The Kobeissi Letter
Chapter 4: The rest of the world joins in
Foreign investors are doing the same thing as American families. They have not left America; they have simply switched from its bonds to its shares. In the last six months, US stock futures have beaten 10-year bond futures by 23.3 percentage points. That is one of the widest gaps since the recoveries after 2009 and 2020.
Source: Click here for the link of article.
The numbers are striking. Investors outside the US owned $24.32 trillion of American shares in July, the third-highest amount ever. That is $2.22 trillion (10%) more than at the start of 2026, and more than double the level at the 2022 low. Shares now make up a record 60% of everything foreigners own in America, about 6 percentage points above the peak of the dot-com bubble in 2000.
Their bond buying tells the other half of the story. In the year to June, private foreign investors bought about $805 billion of US shares but only $329 billion of long-term US government bonds, 40% less than a year earlier. Foreign central banks sold. Here is the strange part: a 10-year US bond now pays more than the earnings yield on US shares. Investors are accepting less reward for more risk, which usually happens only when excitement runs high.
Chapter 5: The magnet called AI
Why would anyone pour money into shares when safe bonds pay 5%? One word: AI. People have taken it faster than to any technology before. About three years after launch, 54.6% of American adults were using generative AI. The internet reached only 30.1% at the same stage, and the PC 19.7%. The world is expected to spend about $2.6 trillion on AI in 2026.
Source: Click here for the link
Investors have chased that growth hard. Since the start of 2024, the Bloomberg Global AI Index has risen 118%, while the MSCI World Index, which tracks the broader global market, is up 57%. AI shares have returned about 38% in the year, twice the rest of the market.
Source: Click here for the link
AI also competes with the government for borrowed money. American AI companies increased their spending on data centres and chips by nearly 60% in the year to May 2026, about ten times faster than other companies, and much of it is funded with debt. More corporate bonds mean more competition for the same lenders the government needs.
Chapter 6: Why India is paying twice
Now coming home to Dalal Street. The Nifty is down about 13% in 2026 and heading for its worst year since 2011. India is being hit twice: once through oil, and once through money that is chasing AI elsewhere.
Think of three pipes pulling money out. The first is oil: India imports most of its crude, so $100 oil and scarce diesel weaken the rupee and push up prices, which may force the RBI to raise rates in October. The second is US yields: when a safe American bond pays 5.2%, the extra return a foreign fund earns in India looks too small for the risk. The third is AI: India has almost no listed AI-chip or data-centre companies (Several AI-ancillary stocks have performed well, but here we mean the core AI model players like Anthropic and OpenAI). The broader emerging-market index is up about 70% since 2024, led by Taiwan and Korea's chipmakers, while India lagged. Worse, Indian IT, a favorite of foreign funds, is seen as an AI loser.
The one thing holding the market up is you. Monthly SIPs of over ₹30,000 crore let domestic funds buy almost everything foreigners sell. The Nifty now trades at about 20.9 times earnings, cheaper than its five-year average of 23.5 (as of 29th September).
Chapter 7: We have seen this film before
Foreign investors have left India in a hurry many times, usually when the world got scared or US interest rates jumped.
The pattern is clear. Every big foreign exit since 2013 has been tied to US interest rates, and each one felt permanent while it lasted. The difference today is that Indian households, through SIPs, are now big enough to absorb much of the selling.
The ending we are waiting for
So where does the story go from here? America cannot retreat without reopening Hormuz, and it cannot keep fighting without borrowing more from lenders who already want 5%. Iran doubts any deal before the US midterm elections in November, so the squeeze could last weeks more. History offers a clue: at Suez in 1956, and during the 2025 tariff retreat, pressure from money markets ended policies that politics would not.
For Indian investors, relief needs two things to happen together: cheaper oil and lower US bond yields. Until then, foreign money may keep leaving, and the steady SIP investor remains the market's quiet hero.
Thank you for joining us in this special edition of the Financial Chronicle! We hope you're as excited about these changes as we are. Until next time, Happy investing!
