Risk Plan for Futures Traders
A leverage cap, a mark-to-market buffer, overnight risk, rollover discipline, margin stress and event avoidance - sizing and rules built for the linear, leveraged world of futures.
- ·Leverage cap
- ·MTM buffer
- ·Overnight risk
- ·Rollover discipline
- ·Event avoidance
- ·A one-page futures plan
Arjun had Rs 2,00,000 and a plan to trade NIFTY futures. One lot of NIFTY, with the index near 24,000 and a lot size of around 65 (lot sizes are revised periodically by the exchange - always check the current contract specs), controls about Rs 15,60,000 of the index - so the broker's margin to hold it overnight was roughly Rs 1,80,000. Arjun put on that one lot. It felt fine: he was "only" using one lot, and he still had Rs 20,000 left over. That night a global headline pushed NIFTY down about 350 points before the next open. His loss was 350 times 65, or Rs 22,750 - more than the Rs 20,000 cushion he had left. The next morning his account showed a margin shortfall, and the position was squared off near the open, locking in the loss at almost the worst price of the move. He had not been reckless on size. He had simply kept no spare cash, so a normal overnight wiggle became a forced exit.
This chapter turns the futures trader's whole risk world into one page you can actually use. Futures are linear and leveraged - they magnify every move both ways - so the plan is mostly about not getting forced out before your idea has a chance to work.
Why futures need their own plan
A stock you buy with your own cash can fall and you still own it; you choose when to sell. A futures position is different in two ways. First, it is leveraged: you put up a fraction of the contract's value as margin, so a small percentage move in the index is a large percentage move in your account. The Risk Management course's leverage chapter showed this magnifying glass in detail - it cuts both ways, and on the losing side it can be faster than you expect. Second, futures are marked to market every day. Each evening your gains and losses are settled in cash against your account. A bad day is not a paper number you can ignore - it is real money leaving, and if your account dips below the required margin, your broker can square you off whether you like it or not.
So the futures trader's enemy is rarely being "wrong." It is being right too early with no cash to survive the wait.
In futures, survival depends less on being right and more on not being forced out. Cap your leverage well below what the broker allows, and always keep spare cash so a normal daily mark-to-market loss is far less likely to force a square-off.
The MTM buffer: keep fuel in the tank
Here is the single habit that would have saved Arjun. Never deploy all your capital as margin. The cash you hold back is your mark-to-market buffer - the fuel that lets you absorb a bad day without breaching margin and being squared off at the worst tick.
Think of your account as a fuel tank. The margin your position needs is the fuel already being burned. The buffer is the reserve below the line. If you fill the tank to the brim with margin, the first headwind empties it and the engine cuts out. Keep a reserve - a rough rule is to use no more than about half your capital as margin and leave the other half as buffer - and you can ride out the daily swings that shake out everyone running on fumes.
Overnight, rollover, margin stress and events
Four more rules round out the plan. Each one is about a force that hits futures harder than stocks.
Overnight risk. A stop-loss protects you while the market is open. Between sessions, price can gap straight past it. So size smaller for anything you carry overnight - or carry nothing at all into a known risky night. The damage that matters most is the move you cannot trade through.
Rollover discipline. A futures contract expires. To keep a position past expiry you must "roll" it - close the expiring contract and open the next month. Do this early, a few days before expiry, not on the expiry day itself. On expiry day, liquidity thins, spreads widen, and you are forced to trade at whatever price you can get. Rolling early is calm; rolling on the last day is a scramble.
Margin stress. The margin a position needs is not fixed. When volatility rises, exchanges raise margins - sometimes sharply, sometimes the same week the market is falling. A position that needed Rs 1,80,000 on a quiet day can suddenly demand far more. If you were near the limit, that increase alone can force you to cut. Your buffer is what absorbs a margin hike, not just a price loss.
Event avoidance. The Budget, a central-bank rate decision, a major election result, a big company or global headline - these are known dates that can produce gaps no stop can catch. Go in flat or hedged. There is no prize for holding full size into a coin-flip. Flat into an event is a position too: the position of not losing.
The classic futures blow-up stacks three errors at once: using the maximum leverage the broker allows, keeping no mark-to-market buffer, and holding that full-size position overnight into a known event. Each is survivable alone; together they are a forced square-off waiting for a date. The fix is the reverse of all three - modest leverage, a fat cash buffer, and reduced or zero size into events.
Your one-page futures risk plan
Run this before you put on any futures position. Numbers are example values for a Rs 2,00,000 account - scale them to yours. This is education, not personalised advice.
- Leverage cap. Use no more than about half your capital as margin. On Rs 2,00,000, that means margin of roughly Rs 1,00,000 - which often means trading a smaller-notional contract or simply not taking the second lot, even when the broker would let you.
- MTM buffer. Keep at least half your capital as spare cash - here, about Rs 1,00,000 - untouched, purely to absorb daily losses and margin hikes.
- Per-trade risk. Decide your rupee loss before entry and place the stop there. Keep it to about 1-2% of capital - roughly Rs 2,000 to Rs 4,000 - which on NIFTY is only tens of points, so it sizes your position honestly.
- Overnight rule. Carry smaller size overnight, and carry nothing overnight before a known event.
- Rollover rule. Roll to the next contract two to three days before expiry, never on expiry day.
- Event rule. Be flat or hedged into the Budget, rate decisions, election results and major scheduled news.
- Daily stop. If you lose a set amount in a day - say 4% of capital, about Rs 8,000 - you are done for the day. No revenge trade.
How this differs from the stock trader's plan
The stock trader's plan and the futures plan share a spine - per-trade risk, a stop, a daily loss limit, a journal. Two things make futures stricter.
| Stock trader | Futures trader | |
|---|---|---|
| Leverage | Usually none (own cash) | Built in - a small move is magnified |
| Daily settlement | No - loss is on paper until you sell | Yes - marked to market in cash daily |
| Forced exit | Rare | A margin shortfall can square you off |
| Extra rules needed | Sizing, stop, daily limit | All that, plus a leverage cap, an MTM buffer, rollover and margin-stress planning |
A stock trader can be wrong for a while and simply wait. A futures trader who is wrong with no buffer gets removed from the trade. That is why the futures plan adds the cash reserve and the leverage cap on top of everything the stock trader already does.
When this fails
This plan reduces the ways futures can ruin you. It does not remove them.
A gap can exceed your buffer. A truly violent overnight move - a war headline, a shock result - can blow past even a healthy reserve. The buffer buys survival on ordinary bad days, not on every black-swan day. That is precisely why the event rule says be flat, not just well-buffered.
Discipline is the weak link, not the rules. The plan is simple to write and hard to follow at 3:15 pm when you are down and want it back. A plan you override is not a plan. The hardest line in this chapter is the daily stop, because it asks you to walk away while the screen is still open.
Margin hikes can arrive faster than you can react. Volatility-driven margin increases can land between sessions, so you wake up already short of margin. Running well under the leverage cap is the only real defence - there is no clever trade that fixes being over-leveraged into a vol spike.
None of this is advice to trade futures or to use any particular size. It is a map of where futures traders get forced out, so you can build a plan that keeps you in.
Quick self-check
1. Why does a futures trader need a mark-to-market buffer that a cash stock buyer does not?
Futures are settled in cash every day and require margin. If a daily loss pushes your account below the required margin, the broker can square you off. A buffer of spare cash absorbs those daily losses so a normal swing cannot force you out. A cash stock buyer owns the share outright and can simply wait.
2. One NIFTY lot near 24,000 controls roughly how much, and why does that matter?
About Rs 15,60,000 of notional exposure (24,000 times a lot of around 65), held on margin of roughly Rs 1,80,000. It matters because a single lot is already a large, leveraged bet - a 1% index move is about Rs 15,600 to your account - so "just one lot" is not automatically small.
3. Why roll a futures position early instead of on expiry day?
On expiry day liquidity thins and spreads widen, so you are forced to trade at poor prices in a scramble. Rolling two or three days early lets you close the expiring contract and open the next month calmly, at fair prices.
4. What three mistakes typically stack together in a futures blow-up?
Using the maximum leverage the broker allows, keeping no mark-to-market buffer, and holding full size overnight into a known event. Each is survivable alone; together they set up a forced square-off on a bad date.
5. Why can rising volatility force you to cut a position even if price has not hit your stop?
Because exchanges raise margin requirements when volatility rises, often sharply and at the worst moment. If you were near your margin limit, the higher requirement alone can create a shortfall and force you to reduce - which is why the buffer must cover margin hikes, not just price losses.