September 2026 was a record month for mutual fund inflows - and the money went somewhere specific. Small cap funds pulled in roughly ten times what large cap funds did. Fresh money chasing the segment that already ran the hardest is exactly the setup that precedes a correction, and the valuation numbers back that reading up.
Valuation, relative to each segment’s own history
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Price-to-earnings of each segment's benchmark index
Today, 5-year average, and 6-year peak, by segment.
NOT A WHOLE-MARKET STORY Small cap is sitting 25% above its own five-year average. Large cap and mid cap are both trading below theirs. This is specific to small caps, not a broad market valuation problem.
It isn’t a story about flat earnings, either. Small cap earnings have actually grown by roughly a third over the past two years, going by the underlying company filings. The more precise read is that price has simply outrun even genuinely improving fundamentals.
Earnings have grown - just not as fast as price
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Small cap aggregate earnings, indexed
Indexed to 100 two years ago, based on underlying company filings.
GROWTH, NOT STAGNATION Small cap earnings are up roughly 33% over two years. The problem isn’t that fundamentals stood still - it’s that price moved even further than genuinely improving earnings did, which is how a segment re-rates from fairly priced to expensive.
Why small caps move so much harder than large caps
Large cap stocks sit in deep, liquid markets - a few thousand crore of fresh buying barely moves the needle. Small and mid cap stocks have a far smaller pool of shares actually available to trade, so the same rupee amount of buying moves their price much further. That turns inflows into a feedback loop: prices rise, the rise attracts more inflows chasing the momentum, and the loop continues until flows reverse.
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Where the money went, last 3 months
Net flow by category, as a percentage of assets under management.
Large cap and flexi cap funds seeing net outflows isn’t only a flow-starvation story - their largest holdings, banks and IT services among them, have also had a comparatively weaker earnings cycle lately. But both effects point the same direction, and the flow side is the one that can reverse fast.
For the full category x AMC breakdown behind this chart - who’s gaining, who’s losing, month by month - see Punji’s monthly Flow Watch.
This isn’t the first time
Small cap valuations stretched further in the run-up after 2021, when the segment’s benchmark peaked near 48 times earnings - today’s 34 is some distance from that extreme. But “less extreme than last time” has never meant safe. The same index fell roughly 69% in the 2008 crash and took more than five years to climb back to its old high. More recently, after the 2021 enthusiasm faded, small caps had a genuine down year in 2025, and the two-year compounded return through this October came out roughly flat - even while the index sat close to a fresh all-time high in nominal terms.
| Small cap drawdown, 2008 crash | -69% |
| Time to recover that drawdown | 5+ years |
| Small cap return, calendar 2025 | -6.3% |
| 2-year compounded return to Oct 2026 | ~0% |
“Near an all-time high” and “a good time to add money” are not the same claim. Real compounding in this segment has stalled twice already this decade, even as the nominal index kept climbing.
What today’s top funds have actually returned, by segment
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SIP returns among each segment's current best performers
Annualised SIP return for top-tier funds in each category, by holding period.
| Segment | 3-yr SIP return | 5-yr SIP return | Beat the index by |
|---|---|---|---|
| Large cap | 4-8% | 9-11% | 4-6 pts |
| Mid cap | 8-17% | 17-20% | 2-5.5 pts |
| Small cap | 13-21% | 20-23% | 10-14 pts |
The step-up going down the cap curve is real. It’s also the trap: small cap’s standout number is largely a product of the same re-rating that built today’s valuation stretch - it’s less likely to repeat from here than the fact sheet implies. Mid cap’s more modest-looking number comes from a segment that’s currently cheaper than its own history, arguably the more repeatable of the two. Large cap’s lower absolute return is measured against a benchmark that itself returned close to nothing over three years - so the margin by which these funds beat their own index is, in relative terms, the widest of the three.
What to actually do with this
- Fresh lump-sum money: this is the weakest entry point for small cap in years. Mid cap and large cap currently sit at or below their own long-run valuation - better risk-reward for new money right now.
- Running SIPs in small cap: don’t stop them. A SIP is designed to buy more units cheaply if a correction comes; stopping only locks in the expensive units you’ve already bought.
- Remember the mechanism cuts both ways. The same flow-sensitivity that pushed small cap prices up faster than earnings works in reverse the moment flows turn. Size exposure for that two-way swing, not just the upside case.
SEE ALSO Why the fund-page SIP return you see isn’t the one you’ll get: the same selection-bias mechanism that inflates every category’s headline number is especially visible in small cap right now - read the full breakdown.
METHODOLOGY Valuation figures are trailing P/E on each segment’s benchmark index. Flow figures are net flow by category as a percentage of AUM, trailing 3 months. SIP return ranges reflect the current best-ranked funds in each segment, not a category average. Earnings growth figure is based on underlying company filings for the small cap universe, not index-level EPS estimates.
Data: AMFI and NSE/BSE public disclosures. Analysis: Punji Research. Not investment advice.