Zerodha founder Nithin Kamath has drawn attention to a potentially fragile corner of India's equity market, warning that small- and microcap stocks account for a substantial share of the country's margin trading facility, or MTF, book. His comments come at a time when retail participation remains elevated and leveraged positions continue to play a meaningful role in market activity, particularly in smaller companies where liquidity can evaporate quickly during stress.
Liquidity Under Pressure
Kamath's warning is significant because it points to a structural mismatch between leverage and market depth. The MTF mechanism allows investors to buy stocks by borrowing part of the purchase value from brokers, amplifying both gains and losses. When a large portion of such borrowing is concentrated in smallcaps and microcaps, the risk is not merely that prices fall, but that they fall into a market with limited buyers. In such conditions, even modest selling can trigger outsized declines, forcing further margin calls and creating a feedback loop of forced liquidation.
That dynamic is especially relevant in India's smaller listed companies, where trading volumes are often thin and price discovery can be uneven. In a broad market correction, investors using leverage may rush to exit positions at the same time, while brokers and exchanges tighten risk controls. The result can be a sharper and more disorderly selloff than in large-cap stocks, which generally have deeper institutional participation and better liquidity buffers.
Kamath's remarks also underscore the changing composition of retail speculation in India. Over the past few years, smaller stocks have attracted strong interest from individual investors seeking higher returns, often through momentum-driven trades. That enthusiasm has helped fuel turnover in the segment, but it has also increased the market's sensitivity to sudden shifts in sentiment. If the broader market weakens, the very stocks that saw the most aggressive leverage can become the most vulnerable.
Leverage Meets Thin Markets
The concern is not that margin trading is inherently problematic. Used prudently, it can improve capital efficiency and support market participation. The issue arises when leverage is layered onto securities that cannot absorb heavy selling without significant price impact. In that setting, a downturn can become self-reinforcing: falling prices trigger margin calls, margin calls force sales, and forced sales push prices lower still.
For brokers, the risk is operational as well as financial. They must manage exposure carefully, monitor collateral quality and adjust margin requirements in line with volatility. For regulators, the issue raises broader questions about whether current safeguards are sufficient in segments where retail leverage is rising faster than market depth. India has already seen repeated episodes in which speculative enthusiasm in smaller names has been followed by abrupt corrections, often leaving late entrants with steep losses.
Kamath's warning is also a reminder that market structure matters as much as market sentiment. A rally in smallcaps can appear broad-based and healthy when liquidity is abundant, but the same names can become highly unstable once conditions reverse. That asymmetry is what makes leveraged exposure in the segment particularly sensitive. The risk is not confined to individual investors; it can also affect broker balance sheets, sentiment across the broader market and the pace of recovery after a selloff.
Broader Market Signal
The broader message from Kamath's comments is that India's equity market is increasingly sophisticated, but not uniformly resilient. As retail participation expands and more investors use borrowed funds to express bullish views, the market's weakest liquidity pockets become more important to monitor. Smallcaps and microcaps may represent a relatively small share of total market capitalisation, but they can carry outsized systemic relevance when leverage is concentrated there.
For now, the warning serves as a cautionary note rather than a crisis signal. There is no indication of immediate distress, but the concentration of MTF exposure in smaller stocks suggests that any sustained downturn could expose hidden fragilities. In practical terms, the message is straightforward: leverage magnifies risk, and in thinly traded stocks, that risk can escalate rapidly when sentiment turns.
As India's markets continue to draw new investors and new capital, the balance between opportunity and stability will remain central. Kamath's intervention puts a spotlight on that balance, reminding traders that the most crowded parts of the market are not always the safest, especially when liquidity is the first thing to disappear in a selloff.