Reading AMFI's Monthly Data Right: AUM, SIP Flows and Folio Trends Every Investor Should Track
AMFI's monthly note bundles AUM, net inflows and SIP contributions, three numbers that move for different reasons. Here is how to read them and decide between a SIP and a lumpsum.
On the eighth-to-tenth working day of every month, the Association of Mutual Funds in India (AMFI) publishes its monthly industry note on amfiindia.com, with the May 2026 edition carried under the file label ammay2026repo. It is the single most authoritative free dataset on where Indian household money is actually flowing, yet most investors never open it, relying instead on second-hand headlines that compress three very different numbers into one.
The note bundles three figures that move for different reasons: total industry assets under management (AUM), net inflows split by scheme category, and the monthly systematic investment plan (SIP) contribution. Reading them correctly settles a practical question every saver faces: should fresh money enter the market as a steady monthly SIP or as a one-time lumpsum? Since the Budget 2024 changes effective 23 July 2024, both routes face identical long-term capital gains tax of 12.5%, so the decision turns on behaviour and timing, not tax.
How to Read the Monthly Note
The first trap is confusing AUM with inflows. AUM is a stock figure: the total mark-to-market value of every rupee already invested, so it rises even in a month of zero fresh buying simply because the underlying NAV went up. Net inflow, by contrast, is a flow figure: gross purchases minus redemptions during that single month. A record AUM headline in May 2026 can sit alongside flat or negative net inflows if markets rallied while investors quietly redeemed.
The second number to isolate is the SIP contribution line, reported separately from total net inflows. SIP money is contractual and sticky: it arrives on fixed dates regardless of market level, which is why AMFI also reports SIP AUM as a share of total equity AUM. The third dataset is folio count, AMFI's proxy for unique account relationships; a rising folio count alongside rising SIP contributions signals genuine retail participation rather than a few large institutional tickets inflating AUM.
It also helps to read net inflows in context of gross numbers where AMFI provides them: a Rs 100 figure of net inflow can mask Rs 500 of fresh purchases against Rs 400 of redemptions, telling a very different story about churn than a quiet month with Rs 100 in and almost nothing out. Where the monthly note breaks out new-fund-offer collections separately, strip those out too, because a single large NFO in May 2026 can inflate a category's net inflow without reflecting any organic demand for existing schemes.
A disciplined reader cross-checks category-wise net inflows against the SEBI mutual fund categorisation circular dated 6 October 2017, which defines large cap as the top 100 stocks by full market capitalisation, mid cap as ranks 101 to 250, and small cap as 251 onward. AMFI republishes this stock list every six months, so a surge in small-cap net inflows during May 2026 should be read against valuation risk in that exact universe, not the market as a whole.
The table below summarises what each of AMFI's three headline numbers actually measures and the common error each one invites, so that a single monthly note can be parsed in under five minutes.
| AMFI metric | What it measures | Type | Common misreading |
|---|---|---|---|
| Industry AUM | Marked-to-market value of all units held | Stock | Treating a record high as proof of fresh buying |
| Net inflows (by category) | Gross purchases minus redemptions in the month | Flow | Ignoring redemptions hidden inside a positive headline |
| SIP contribution | Money arriving via standing instructions | Flow | Confusing it with total equity inflows |
One further refinement separates serious readers from headline-chasers: track the 12-month trend, not a single month. A lone weak net-inflow print in May 2026 means little, but three consecutive months of falling equity inflows alongside a rising AUM is the classic signature of a market being carried higher by price rather than by new money, a divergence that has historically preceded bouts of volatility.
Side-by-Side Comparison
The AMFI data does not tell you to pick SIP or lumpsum; it shows you that the overwhelming majority of retail money now arrives via SIP, which is itself a behavioural signal. The table below compares the two routes for the same goal of long-term equity wealth creation over a 10-year horizon, using our SIP calculator and lumpsum calculator to model outcomes.
| Attribute | Monthly SIP | One-time Lumpsum |
|---|---|---|
| Entry timing risk | Spread across ~120 instalments over 10 years | Concentrated on a single date |
| Rupee-cost averaging | Yes, buys more units when NAV falls | No, single purchase NAV |
| Cash flow fit | Matches monthly salary income | Needs an existing corpus |
| Behaviour in a fall | Auto-debit keeps buying the dip | Tempts the investor to wait and miss the recovery |
| Capital gains holding clock | Each instalment counts 12 months separately (FIFO) | Single 12-month clock from purchase |
| Best when markets are | Volatile or richly valued | Clearly undervalued after a sharp correction |
The holding-clock row matters at redemption. For a SIP, tax authorities apply first-in-first-out, so only units held beyond 12 months qualify as long-term; an investor redeeming a three-year-old SIP will find the most recent instalments still inside the short-term window. A lumpsum invested once crosses the 12-month long-term threshold on a single clean date, which simplifies tax planning but offers none of the averaging benefit that AMFI's steady SIP line shows retail investors have come to rely on.
Tax Treatment
Both SIP and lumpsum holdings in an equity-oriented fund are taxed identically once the units are sold; the route in does not change the route out. Under the rules effective 23 July 2024, equity LTCG above the annual Rs 1,25,000 exemption is taxed at 12.5% without indexation, while STCG on units held 12 months or less is taxed at 20%. These rates are confirmed on incometax.gov.in and apply across both the old and new regimes for the listed-equity category.
| Holding period | Classification | Tax rate | Annual exemption |
|---|---|---|---|
| 12 months or less | Short-term (STCG) | 20% | None |
| More than 12 months | Long-term (LTCG) | 12.5% | Rs 1,25,000 |
The Rs 1,25,000 LTCG exemption is per financial year, not per fund, so an investor running several SIPs pools all equity long-term gains into one annual basket. This makes a tax-aware redemption ladder useful: harvesting roughly Rs 1,25,000 of gains each year resets the cost base tax-free. Note that ELSS funds, which you can model on our ELSS calculator, carry a hard three-year lock-in per instalment under Section 80C, so a December 2026 SIP instalment cannot be redeemed before December 2029 even if the market peaks earlier.
Who Should Pick Which
The salaried investor with a recurring monthly surplus and no existing corpus should default to SIP, the same route AMFI's monthly SIP-contribution line shows the bulk of retail India already uses. A SIP started at any NAV level removes the paralysis of timing and, because each of the roughly 120 instalments over a decade buys at a different price, it neutralises the single worst-date risk that a lumpsum carries. With the repo rate at 5.25% as of the RBI policy of 8 April 2026, cash parked waiting for a perfect entry earns little, reinforcing the case for staying invested through a SIP.
The investor sitting on a windfall, such as a bonus, property sale proceeds, or a maturing fixed deposit, faces a genuine SIP-versus-lumpsum choice. Historical study of Indian equity returns shows lumpsum wins more often when markets are not expensive, because money is exposed to compounding sooner; but the same money deployed at a frothy peak can underperform a staggered entry for years. A common middle path is a systematic transfer plan that moves a lumpsum from a liquid fund into equity across 6 to 12 tranches, blending the two routes while the idle portion still earns money-market returns.
The conservative or near-retirement investor should weigh equity flows against guaranteed alternatives: the Public Provident Fund pays 7.1% for the quarter beginning 1 April 2026 with fully tax-free interest, which can beat a volatile equity SIP on a risk-adjusted basis for money needed within three years. Reading AMFI's category data helps here too, since a sustained shift of net inflows into debt-oriented and hybrid categories over three or more months often signals that institutional money is itself turning defensive. Always match the fund category to the goal horizon rather than to last month's flow headline.
A final discipline applies to every profile: never let a single strong AUM print drive a fresh lumpsum into a rallying small-cap category. The 6 October 2017 SEBI definition fixes that universe at ranks 251 and beyond, where liquidity is thinnest, so the prudent reader uses AMFI's folio and SIP trend, not the AUM headline, to judge whether retail enthusiasm has run ahead of fundamentals before committing new capital.
FAQ
What is the difference between AUM and net inflows in AMFI data?
AUM is the total value of all money already invested, marked to market, so it rises with NAV even without fresh buying. Net inflow is the single-month figure of gross purchases minus redemptions. A May 2026 record-AUM headline can coexist with weak net inflows if a market rally lifted existing holdings while new buying slowed.
How often does AMFI publish its monthly data?
AMFI releases the industry note within roughly the first eight-to-ten working days of each month on amfiindia.com, organised by fiscal year. The May 2026 note carries the file label ammay2026repo and includes AUM, category-wise net inflows, the monthly SIP contribution, SIP AUM share, and total folio counts.
Does choosing SIP over lumpsum change my tax?
No. Both are taxed identically once units are sold. Equity LTCG above Rs 1,25,000 per year is 12.5% and STCG is 20% on units held 12 months or less, effective 23 July 2024 per incometax.gov.in. The only practical difference is that a SIP applies the 12-month clock to each instalment separately on a first-in-first-out basis.
What does a rising SIP folio count tell me?
Folio count is AMFI's proxy for unique account relationships. A rising folio count alongside a rising monthly SIP contribution points to broad-based retail participation rather than a handful of large institutional tickets, which is generally read as a sign of durable, sticky flows.
How do SEBI cap definitions affect the flow data I read?
The SEBI circular of 6 October 2017 fixes large cap as the top 100 stocks, mid cap as ranks 101 to 250, and small cap as 251 onward, with AMFI updating the stock list every six months. So a spike in small-cap net inflows should be judged against valuations in that specific 251-onward universe, not the broad market.
Should I stop my SIP when markets are high?
Stopping a SIP at market highs defeats its core purpose, which is to keep buying through every level so that falls are captured automatically. With the repo rate at 5.25% as of 8 April 2026, idle cash earns little while waiting. Investors uncomfortable with valuations can redirect new instalments toward debt or hybrid categories rather than halting contributions entirely.
Is the Rs 1,25,000 LTCG exemption per fund or overall?
It is an aggregate annual exemption across all your equity-oriented holdings, not per scheme. An investor running several equity SIPs pools all long-term gains into one Rs 1,25,000 basket each financial year, which is why a planned redemption ladder that harvests gains up to that limit annually is tax-efficient.
Sources & Citations
- AMFI Monthly Industry Data — AMFI
- Categorization and Rationalization of Mutual Fund Schemes — SEBI
- Capital Gains Tax on Equity (Budget 2024) — Income Tax Department
Frequently Asked Questions
What is the difference between AUM and net inflows in AMFI data?
AUM is the total value of all money already invested, marked to market, so it rises with NAV even without fresh buying. Net inflow is the single-month figure of gross purchases minus redemptions. A record-AUM headline can coexist with weak net inflows if a market rally lifted existing holdings while new buying slowed.
How often does AMFI publish its monthly data?
AMFI releases the industry note within roughly the first eight-to-ten working days of each month on amfiindia.com, organised by fiscal year. The May 2026 note carries the file label ammay2026repo and includes AUM, category-wise net inflows, the monthly SIP contribution, SIP AUM share, and total folio counts.
Does choosing SIP over lumpsum change my tax?
No. Both are taxed identically once units are sold. Equity LTCG above Rs 1,25,000 per year is 12.5% and STCG is 20% on units held 12 months or less, effective 23 July 2024. The only practical difference is that a SIP applies the 12-month clock to each instalment separately on a first-in-first-out basis.
What does a rising SIP folio count tell me?
Folio count is AMFI's proxy for unique account relationships. A rising folio count alongside a rising monthly SIP contribution points to broad-based retail participation rather than a handful of large institutional tickets, which is generally read as a sign of durable, sticky flows.
How do SEBI cap definitions affect the flow data I read?
The SEBI circular of 6 October 2017 fixes large cap as the top 100 stocks, mid cap as ranks 101 to 250, and small cap as 251 onward, with AMFI updating the stock list every six months. So a spike in small-cap net inflows should be judged against valuations in that specific 251-onward universe, not the broad market.
Should I stop my SIP when markets are high?
Stopping a SIP at market highs defeats its core purpose, which is to keep buying through every level so that falls are captured automatically. With the repo rate at 5.25% as of 8 April 2026, idle cash earns little while waiting. Investors uncomfortable with valuations can redirect new instalments toward debt or hybrid categories rather than halting contributions entirely.
Is the Rs 1,25,000 LTCG exemption per fund or overall?
It is an aggregate annual exemption across all your equity-oriented holdings, not per scheme. An investor running several equity SIPs pools all long-term gains into one Rs 1,25,000 basket each financial year, which is why a planned redemption ladder that harvests gains up to that limit annually is tax-efficient.