Indian households pushed a record Rs 32,490 crore into mutual funds through systematic investment plans (SIPs) in September, according to data the Association of Mutual Funds in India (AMFI) released on Oct. 12, even as the Nifty 50 index fell about 6% during the month.

That figure topped August's Rs 32,297 crore by about 0.6% and was the third consecutive monthly rise, Kotak Neo reported. For investors across Asia, the steady monthly flow is one of the clearest examples in the region of retail savers buying a falling market on autopilot, and it has become a key source of support for Indian stocks when foreign money is less reliable.

The pace of growth has slowed. SIP contributions were Rs 29,361 crore in September 2025, so the year-on-year increase was a little over 10%, according to Kotak Neo. August had been the first month above Rs 32,000 crore, UNI reported.

Equity Funds Gain as Small Caps Draw the Most Money

Lump-sum buying added to the SIP flow. Net inflows into equity-oriented schemes rose to Rs 38,306.55 crore in September from Rs 29,328.62 crore in August, a gain of nearly 31%, according to AMFI's monthly reports for the two months.

Investors leaned toward the riskiest end of the market. Small-cap funds took in a net Rs 9,038.57 crore, the most of any equity category, followed by mid-cap funds at Rs 7,834.84 crore and flexi-cap funds at Rs 6,701.80 crore. Large-cap funds drew only Rs 859.47 crore. Index funds tracking equities added a net Rs 2,649.34 crore, a smaller share than active small-cap funds alone.

Exchange-traded funds were also busy. Equity ETFs recorded net inflows of Rs 9,959.96 crore, while gold ETFs added Rs 4,450.61 crore and silver ETFs Rs 1,974.32 crore, according to AMFI.

The headline industry number told a different story. Debt schemes posted net outflows of Rs 1.83 lakh crore, led by withdrawals of Rs 95,743 crore from liquid funds and Rs 50,846 crore from money market funds. That left the whole industry with net outflows of Rs 1.33 lakh crore for the month. Total assets under management stood at Rs 82.64 lakh crore on Sept. 30, AMFI data showed.

The number of investor accounts keeps climbing. Equity funds had about 19.1 crore folios at the end of September, and the industry as a whole had about 28.6 crore. Contributing SIP accounts passed 10 crore for the first time in August, according to Kotak Neo, and about 63 lakh new SIPs were registered in September, Angel One reported.

What the Numbers Mean for Individual Investors

SIP money is sticky by design. Investors sign a standing instruction to buy a fixed rupee amount every month, so a falling market buys them more fund units for the same money. That is the logic of rupee-cost averaging, and September's data suggest most Indian savers kept their plans running through the drop rather than pausing them.

There are two caveats for anyone copying the habit. First, a falling market also shrinks the value of what has already been bought: SIP assets were Rs 17.86 lakh crore at the end of September, Angel One reported, below the Rs 18.62 lakh crore Kotak Neo cited for the end of August. Regular buying smooths the entry price. It does not protect against losses.

Second, the flows are concentrated in small and mid-cap funds, which tend to fall harder in sell-offs and can be harder for fund managers to trade in size. A saver building a long-term core holding may want a broad index or flexi-cap fund at the center, with smaller-company funds as a satellite.

Readers outside India face a further layer. Most Indian mutual funds are open only to residents and non-resident Indians, and returns for a Hong Kong, Singapore or Jakarta investor depend on the rupee as well as on the Nifty. The same pattern of home investors buying through monthly plans is visible elsewhere in the region, including in South Korea, where retail investors have poured a record 5.18 trillion won into a single S&P 500 ETF this year.

Next Data Point

AMFI's October report, due in the second week of November, will show whether SIP contributions held above Rs 32,000 crore for a third month and whether small-cap funds kept their lead.

This article is general information, not financial advice.