The currency market rarely waits for polite signals. When pressure builds, central banks tend to act in ways that are direct, sometimes abrupt, and often uncomfortable for those on the other side of the trade. The Reserve Bank of India has now done exactly that, stepping in with a sharp directive that forces banks to rethink how they manage their exposure to the dollar. The move is simple in form but heavy in consequence: a hard cap of $100 million on net open rupee positions in the onshore deliverable market at the end of each business day.
This is not a minor adjustment. It is a decisive shift from the earlier system, where banks could hold positions up to 25 percent of their capital and offset those exposures through offshore markets. By removing that flexibility, the central bank has effectively narrowed the room for manoeuvre. Banks that once balanced domestic trades with offshore hedges must now unwind or reduce positions that no longer fit within the new limit.
The timing of the directive is not accidental. The rupee has been under sustained pressure, sliding close to record lows against the dollar. It recently touched levels near ₹94.8, marking one of its weakest points in recent history. Several forces have converged to create this situation. Rising crude oil prices have increased demand for dollars, as India remains heavily dependent on imported energy. At the same time, foreign investors have been pulling money out of Indian markets, adding further demand for the US currency. The result has been a steady weakening of the rupee, with periodic sharp moves that have unsettled both policymakers and market participants.
Against that backdrop, the RBI’s move appears aimed at one immediate objective: reducing speculative pressure. Banks play a central role in currency markets, not only as intermediaries for clients but also as participants with their own trading books. When banks hold large long positions in dollars, they effectively add to demand for the currency. If those positions are widespread, they can amplify downward pressure on the rupee.
The new cap forces a reversal of that dynamic. By limiting how much unhedged exposure a bank can carry overnight, the RBI is pushing banks to cut their dollar holdings. In practical terms, that means selling dollars in the domestic market. The expectation among traders is that such selling could provide support to the rupee, at least in the short term.
To understand the impact, it helps to look at how banks have been operating until now. Many banks run strategies that involve arbitrage between the onshore deliverable market and the offshore non-deliverable forward, or NDF, market. In simple terms, a bank could buy dollars in India and hedge that position by selling dollars in the offshore market for future delivery. The two positions would offset each other, leaving the bank with limited net exposure while still capturing pricing differences between the two markets.
The RBI’s directive disrupts this structure. The cap applies specifically to onshore deliverable positions and does not allow banks to offset them using offshore trades in the same way. As a result, positions that were previously considered balanced may now count as open exposure. Banks must either reduce those positions or face a breach of the new limit.
Market estimates suggest that banks may have accumulated hedging positions ranging from $20 billion to $40 billion linked to such strategies. Unwinding even a portion of that volume is not a small task. It involves closing positions in both domestic and offshore markets, often under time pressure. When large volumes move in a short period, price differences between markets can widen, leading to losses.
This is where the cost becomes visible. Banks may face mark-to-market losses as they unwind positions at less favourable rates than those at which they were initially entered. The spread between onshore and offshore markets, which is often small in stable conditions, can widen sharply during periods of forced adjustment. That gap translates directly into financial impact for trading desks.
The timing adds another layer of strain. The directive comes at the end of the financial year, a period when banks are already managing balance sheets, closing books, and preparing disclosures. Introducing a requirement that forces rapid adjustment of large positions during this window increases the operational burden. It also raises the likelihood that losses, if they occur, will be reflected in year-end results.
From the RBI’s perspective, the trade-off appears deliberate. Currency stability often comes at a cost to specific participants in the market. By tightening limits on open positions, the central bank is prioritising the broader goal of reducing volatility over the immediate comfort of banks’ trading operations. This is not without precedent. In 2011, during another period of rupee weakness, the RBI imposed similar restrictions, cutting banks’ open positions and limiting their ability to rebook forward contracts. Those measures were credited with helping stabilise the currency after a prolonged decline.
The current move, however, comes in a different market environment. The scale of cross-border trading has grown, and the link between onshore and offshore markets is stronger than it was a decade ago. That makes the adjustment more complex. Actions in one market quickly affect the other, and participants must manage positions across multiple venues.
There is also the question of how long such restrictions remain in place. Central banks often introduce temporary measures during periods of stress, then relax them once conditions stabilise. The RBI has not framed the current directive as a short-term step, but its impact will likely be reassessed over time based on how the rupee behaves and how markets adjust.
For banks, the immediate concern is compliance. The $100 million cap is absolute and applies at the end of each business day. That leaves little room for error. Trading desks must monitor positions closely, adjust exposures intraday, and ensure that closing balances remain within limits. Systems that were built around more flexible rules may need to be recalibrated.
The directive may also affect how banks approach currency trading more broadly. Strategies that relied on offshore hedging may become less attractive if they lead to higher onshore exposure. Banks could scale back certain activities, focusing more on client-driven trades rather than proprietary positions. That shift, if it occurs, would reduce liquidity in some segments of the market, at least temporarily.
For the rupee, the effect is likely to be shaped by multiple forces. The RBI’s action targets one part of the equation: speculative positioning by banks. But other factors, such as oil prices and capital flows, continue to play a major role. If those pressures persist, the currency may still face downward forces, even as bank positions adjust.
There is also a signalling effect. By imposing a hard cap, the RBI is sending a message that it is willing to act decisively to manage currency movements. That message is aimed not only at banks but also at other market participants, including foreign investors and offshore traders. It suggests that the central bank is prepared to use regulatory tools, not just market intervention, to influence outcomes.
Such signals can shape behaviour. Traders may become more cautious in building large positions against the rupee if they expect further measures. At the same time, uncertainty about policy direction can lead to short-term volatility, as participants adjust expectations and reposition.
