The US stock market is the better pick for those seeking lower volatility and deeper market depth, while India offers superior long-run growth potential for those with a very long investment horizon. The US market's lower volatility and vast size make it ideal for stability, whereas India's Nifty 50 TRI has outperformed in long-term growth since December 1998.
Stock market returns need the right scorecard first
July 31, 1997 to October 31, 2017 is a useful frame because it forces a market-against-market choice over time, not a beginner lesson on stocks. I judge India and the US on four criteria: long-run returns, volatility, market depth, and diversification value.
Volatility means how sharply returns swing up and down over time. Rits Capital reported that over the last decade the Dow Jones and Sensex delivered roughly similar local-currency returns, while the Dow’s volatility was lower than the Sensex’s.
Similar returns with rougher swings change the better pick.
Short-term headlines can dominate attention, but they are weak scorecards for a market choice. So is patriotism. For your decision, steadier compounding, deeper trading, and what a second market adds to your portfolio matter more than one noisy year.
The US stock market stands above USD 62 trillion, according to Rits Capital. Next, weigh each market on those four criteria and ignore the cheerleading.
India wins on long runs, but the ride is rougher
December 1998 is the strongest case for India: according to ritscapital.com, the Nifty 50 TRI in USD returned about 1,922% from that start, or about 11.78% CAGR, which means the average yearly growth rate after smoothing the full period into one annual number. If your priority is long-run growth, India has beaten the bigger stock market in this comparison.
That popular shortcut is wrong. The larger US market is not automatically the better long-run return choice.
**Why it matters:** If you earn, spend, and invest around India, home-market familiarity can make it easier to stay invested through bad periods instead of bailing out at the wrong time.
India hurts in the ride. Over the last decade, Sensex volatility was about 5.1% versus about 3.9% for the Dow Jones, so the path has been bumpier.
The recent patch also looks weak. Indian equities fell 6.81% in 2026 through September, Livemint reported on 30 September 2026. A ₹1 lakh investment would have dropped to about ₹93,190 by then. Pick India here only if you can hold through sharper swings and weak years.
The stock market numbers are closer than most think
9.75% versus 9.70% is the first surprise. Over the last ten years, the Dow Jones Industrial Average edged the Sensex by a hair, according to groww.in.
| Criterion | India | US |
| 10-year return | 9.70% CAGR | 9.75% CAGR |
| Long-run return | Nifty 50 TRI in USD: about 1,922% total, about 11.78% CAGR from December 1998 | S&P 500: about 821% total, about 8.57% CAGR over about 27 years |
| Volatility | Rougher ride in this comparison | Smoother ride in this comparison |
| Market size | Smaller | Above USD 62 trillion market capitalisation, the total value of listed companies in a market |
| 2026 through September | Fell 6.81% | Gap versus India stood at 19.56 percentage points |
Use this matrix to avoid the usual shortcut. The US is far larger, but size and return are different tests.
On 30 September 2026, India had the weaker recent line. Watch the next step: if you want scale and steadier history, keep the US in front; if your horizon is very long, compare the long-run row again.
US wins on steadier returns and market depth
S&P 500 and NASDAQ are index examples, meaning a basket used to track a market, and both are market-capitalization weighted indices, according to dias.ac.in. That matters because the US gives you exposure to a very deep bench through broad, established benchmarks rather than a narrow slice.
Groww reported that over the last ten years the Dow Jones Index volatility was 3.92% versus 5.06% for the BSE Sensex. If you want a smoother ride, the US is the better pick because lower volatility means smaller swings between gains and losses.
The trade-off in the stock market is return. In the 1998-start comparison, the S&P 500 delivered about 821% over about 27 years, or about 8.57% CAGR, which trails India in that long-run race.
Verdict: Pick the US if steadier returns and the deepest market matter more than chasing the strongest very long-run India-style growth.
Pick by situation, not by which market sounds bigger
December 1998 is the split that changes the answer: according to ritscapital.com, India’s Nifty 50 TRI in USD beat the S&P 500 by a wide margin over the long run. The popular choice can be wrong when investors assume the US stock market should always win because it is larger, even though the US market sits above USD 62 trillion.
Situation picks
- Long-horizon growth: India. Over about 27 years, Nifty 50 TRI in USD returned about 1,922%, versus about 821% for the S&P 500.
- Lower-volatility preference: US. The US market sends return and volatility spillovers into BRICS markets, which fits a steadier core-market role.
- Diversification across markets: Both, with India added to a US base. Diversification means spreading money across markets so one market’s moves do less damage to the whole portfolio; India was not interrelated with the US for the full January 1991 to December 1999 sample.
**Note:** If your goal is one default market, pick the US for steadier ownership. Switch to India when your holding period is very long and you can sit through rougher swings.
My pick is the US unless your horizon is very long
9.75% versus 9.70% is basically a tie over ten years, according to groww.in. My default pick is the US because the same decade came with lower volatility there, at 3.92% against 5.06% for the Sensex.
Similar ten-year returns hid a smoother path in the US and a bumpier one in India.
That path matters in real portfolios. Two markets can finish near the same place, yet one asks you to sit through sharper swings on the way, and the evidence here says India did.
I switch only if your horizon is very long and you are explicitly choosing for long-run upside over a steadier ride. The evidence already shown supports that split, while also showing that recent gaps can open fast, with Livemint reporting a 19.56 percentage point gap between Indian and US equities on September 30, 2026.
So if you want my plain answer, pick the US stock market by default, then watch your own time horizon and tolerance for the rougher path.
I would pick the US, and switch only for a very long horizon
9.75% versus 9.70% settles it for me. I would pick the US by default because the decade-long returns were basically tied, while volatility was lower at 3.92% versus 5.06% and the market depth is far greater than India’s.
I would switch only for a very long holding period. The 1998-start comparison is the condition: India’s Nifty 50 TRI in USD returned about 1,922%, versus about 821% for the S&P 500, and that upside came with a rougher path and weaker recent stretches.
Next steps
- 1. Start with the four-criteria scorecard: long-run returns, volatility, market depth, and diversification value.
- 2. Use the ten-year comparison first. Treat 9.75% versus 9.70% as a tie, then let the lower US volatility break it.
- 3. Check your horizon against the December 1998 long-run row. Switch to India only if you are choosing very long-run growth over a steadier ride.
- 4. If you want diversification, add India to a US base rather than replacing the US core.
- 5. Ignore one noisy year and patriotism. Watch whether the path you can actually hold matches the market you pick.
Sources
- 1. [15-18_Relationship Between Indian and US]( https://dias.ac.in/wp-content/uploads/2020/03/15-18_Relationship-Between-Indian-and-US.pdf)