September was a difficult month and unlike some months where it's hard to pinpoint why, this one had clear reasons.

The Middle East conflict pushed oil prices significantly higher. At the same time, America's central bank raised interest rates for the first time in over three years. When the US raises rates, global investors tend to move money back to the US because they can now earn better returns there with lower risk. That shift pulled money out of markets like India.

Add to that a weakening rupee and a flood of new company listings that drained liquidity from existing stocks and you have the recipe for one of the toughest months Indian markets have seen this year.

All major indices fell in September and here is how they closed compared to where they started the month:

These are monthly returns comparing where each index started September versus where it ended. The Nifty 50, for example, opened the month at 24,077 and fell to 22,620 by September 30, a drop of 1,457 points in one month.

Mid-cap companies actually fell more than large ones this month, a reversal from August, when they had held up better.

The only sector that finished in the green was Media, up 1.66%. Everything else fell. IT was the worst hit, falling 11.18% because US rate hikes directly reduce what American companies spend on Indian software services. Consumer Durables fell 9.36%, Auto fell 8.83%, and Banking fell 5.85%.

The stocks that held up best were defensive names, companies like ITC, Coal India, and Dr. Reddy's, which tend to be steadier when broader markets are falling.

Five things hit at the same time:

1. Oil got more expensive. The Middle East conflict drove crude oil prices up 7.58% during September. When oil is expensive, it raises costs for businesses across India and reduces investor confidence.
2. The US raised interest rates. For the first time in over three years, America's central bank hiked rates. This pulled global money toward the US and away from countries like India.
3. Foreign investors sold heavily. Foreign investors pulled ₹44,013 crore out of Indian stocks in September, roughly six times August's selling. That kind of concentrated exit hits markets quickly.
4. The rupee came under pressure. As foreign investors sold Indian stocks and converted their money back to dollars, the rupee weakened. India's central bank stepped in to slow the slide, spending significantly from its foreign reserves.
5. Too many new company listings at once. Close to 30 companies listed on Indian stock exchanges in September, including the much-awaited NSE IPO. When this many listings happen together, investors tend to sell existing holdings to fund the new ones, adding selling pressure to the broader market.

Here is where September's story gets genuinely surprising in a good way.

Despite markets falling 6%, equity mutual fund net inflows came in at ₹38,306.55 crore, up from ₹29,328.62 crore in August, and the highest since April.

And SIP contributions hit a brand new all-time record of ₹32,490 crore.

Markets had one of their worst months of the year. Indian investors put in more money than almost any month before. That tells you something important about the mindset of the people building wealth through mutual funds in this country.

Where the money went within equity funds, directly from AMFI's September 2026 report:

• Small Cap funds: ₹9,038.57 crore, the highest inflow among all categories.
• Mid Cap funds: ₹7,834.84 crore.
• Flexi Cap funds: ₹6,701.80 crore.
• Large & Mid Cap funds: ₹4,271.22 crore.
• Large Cap funds: ₹859.47 crore, positive, but the smallest among major categories.
• Gold ETFs received ₹4,450.61 crore in fresh investments, the highest monthly gold ETF inflow this year.
• Silver ETFs received ₹1,974.32 crore; investors continued building positions in silver alongside gold.

Grand Total Industry AUM: ₹82,64,116.63 crore as of September 30. Down from August's ₹87,07,887.74 crore, but that fall is almost entirely because market prices fell, not because investors pulled money out.

On debt funds: there were net outflows of ₹1,83,155.76 crore from debt schemes. This is largely large institutions, banks and companies adjusting their short-term cash at quarter end. It is routine, and not a signal for retail investors to read into.

Foreign investors sold ₹44,013 crore of Indian stocks in September. Domestic mutual funds kept buying, absorbing as much of that selling as they could. The selling was larger than the buying this month, which is why markets fell.

But the domestic investor base is now large enough that the fall was considerably cushioned compared to what it would have been a few years ago. That is a structural shift that has been building quietly, and your SIP is part of it.

Both had strong months and Indian investors clearly noticed.

Gold rose 7.08% in September, closing at ₹1,47,613 per 10 grams. Gold ETFs attracted ₹4,450.61 crore in fresh investments, with total gold ETF assets at ₹1,86,310.44 crore. Rising oil, a weakening rupee, and global uncertainty all drove demand for gold.

Silver rose 9.33%, closing at ₹2,21,110 per kg. Silver ETFs attracted ₹1,974.32 crore in fresh investments, with total silver ETF assets at ₹81,636.34 crore. Silver outperformed gold in September, reflecting strong demand from investors looking for both safety and upside if industrial activity picks up.

If you hold gold or silver in your portfolio, September was a very good month for both. They did exactly what they're supposed to: hold value and grow when equities are under pressure.

If your portfolio fell this month: It did, and depending on where your money is invested, it may have fallen more or less than the Nifty's 6.03%. A fall of this size feels uncomfortable. But India's economy grew 7.8% in the June quarter, tax collections are at record highs, and corporate India is still growing. The fundamentals haven't broken; the mood has shifted temporarily.

If you're on a SIP: You just bought units at the lowest prices since March. The record ₹32,490 crore in SIP contributions this month tells you that hundreds of thousands of experienced Indian investors made exactly that calculation and kept going. You should too.

If you hold gold or silver: September showed exactly why they belong in a portfolio. Both grew when equities fell; that balance is what they're designed to provide.

What to watch in October: The RBI raised interest rates at its early October meeting, the first hike in this cycle. Markets will take time to absorb this. But markets also tend to price in bad news faster than good news and much of September's fear may already be reflected in current prices. Company earnings results starting mid-October will give us a clearer picture of how India's businesses held up through a tough few months.

AMFI September 2026 Data, Business Standard, Economic Times

• Bloomberg
• Morningstar
• Value Research Online