Crashes and how to behave — a short Indian history

Sooner or later, if you stay invested long enough, you will watch a large part of your portfolio's value disappear in a few weeks. Not because you did anything wrong — because that is simply what markets do from time to time. India has seen it more than once in living memory: the 2008 global financial crisis, when the Sensex fell by more than half over the following year; the March 2020 pandemic shock, when the index dropped roughly a third in a single month; the sharp drawdowns of 2000 and 2011. These are publicly documented episodes, in the record for anyone to look up.

The question this module asks is not when will the next one come — that is genuinely unknowable, and anyone who tells you the date is guessing. The question is narrower and far more useful: when it comes, how should you behave? Because the crash itself is a fact about prices that you cannot control, but your behaviour during it is the one variable that is entirely yours. And it is your behaviour, far more than the crash, that decides whether a fall is a temporary dip on a chart or a permanent loss of your money.

Most beginners think a crash tests their nerve. It does — but that is not the deepest thing it tests. A crash tests your structure: how you are funded, how much you have borrowed, and whether you will be forced to make decisions on someone else's timetable instead of your own.

Here is the uncomfortable core. In a normal week, a share price is set by buyers and sellers weighing what a business is worth. In a crash week, it is set by something else entirely — by people who have to sell whether they want to or not. Someone who bought shares with borrowed money faces a margin call — a demand from the broker to add cash the moment the position falls below a threshold. If they cannot add cash, the broker sells them out, at any price the market offers. Those forced sales push prices down further, which triggers the next set of margin calls, which forces the next round of selling. The fall feeds on itself.

This is why crashes overshoot. Prices in a panic fall further than any calm reading of the businesses would justify, because the marginal seller is not reading anything — they are meeting a deadline. Understanding this one mechanism changes how you see a falling screen. You stop asking "how much worse is my company now?" and start asking "how much of this fall is forced selling that has nothing to do with my company at all?"

That single reframe is the reason this module exists. It will not help you predict the fall. It is designed to help you keep your footing inside it — to stay a chooser when the market is trying to turn you into someone who is forced.

A crash has an anatomy, and it is almost always the same anatomy. It begins with a trigger — a global shock, a credit event, a policy surprise, sometimes nothing you can name afterwards. The trigger matters less than what it lands on. It lands on a system that, after a long calm, has quietly built up more borrowing and more risk than anyone noticed. This is the setup the economist Hyman Minsky described: a long stretch of nothing going wrong is exactly what tempts people to borrow more and call it safe. The calm is not the absence of risk; it is often risk being accumulated out of sight.

Once the trigger lands, the spiral runs. Leveraged holders are forced to sell to meet margin calls. Their selling drives prices down faster than the underlying businesses have changed. The faster fall pulls the next layer of borrowers below their own thresholds. Fear spreads to holders who are not even leveraged, and some of them sell too, adding to the pressure. This is deleveraging — the whole market shedding borrowed money at once — and while it runs, price and worth come apart.

Notice where the saver sits in that picture — outside the loop entirely. The person who owns their shares outright, with no borrowing against them and no EMI that depends on their value, cannot be forced to do anything. They can watch the spiral run and simply not participate in it. That is not a personality trait; it is a structural position, chosen calmly long before the crash, when funding decisions were made. The whole art of surviving a crash is arranged in advance, in how you are set up, not in how brave you feel on the day.

Walk it through with two composite investors in the same fall. illustrative

The market drops 34% from its peak over six weeks. Both hold the same basket of solid companies — say a large private bank, a consumer-goods maker, an IT exporter. On paper, both are down the same 34%.

Rohan bought on 3x margin. He put in ₹1,00,000 of his own money and borrowed ₹2,00,000 to hold ₹3,00,000 of shares. A 34% fall wipes roughly ₹1,02,000 off the position — more than his entire ₹1,00,000 of equity. His broker issues a margin call. He does not have fresh cash to add, so the position is sold out near the lows. His paper loss becomes a real, permanent one. He is out of the market entirely at the worst possible moment, and when prices later recover, he is not there to recover with them.

Meera bought the same basket outright, with money she did not need for at least five years. Her holding is also down 34% on the screen. But no one calls her. No deadline lands on her desk. She re-reads the three companies' latest results and finds nothing broken — the bank is still lending, the consumer maker is still selling soap, the exporter is still billing clients abroad. She concludes the fall is mostly the market's plumbing, not her businesses, and she does the one boring thing available: she keeps her SIP — her fixed monthly investment — running, which quietly buys more units at lower prices. She does nothing dramatic. Doing nothing dramatic is the whole skill.

Same 34%. Same companies. Opposite outcomes — and the thing that separated them was decided long before the crash, in how each was funded. This is the inversion of a crash: the identical fall is a wipe-out for the leveraged holder and an opportunity, or at worst a non-event, for the one who can wait.

A crash is loud, and loudness feels like information. It is not. There are several things a falling market genuinely cannot tell you, and mistaking the noise for a signal is where the real damage is done.

It cannot tell you the bottom. The low is only ever named in hindsight, weeks or months later. In the moment, the bottom looks exactly like "still falling," and the day before a recovery looks exactly like the day before a further crash. Any plan that requires you to identify the bottom is not a plan you can run. The confident call on where the fall ends is astrology dressed as analysis — the honest deliverable is a behaviour that does not need the bottom to be known.

It cannot tell you how long recovery will take. Indian indices have, to date, recovered from every past crash — but never on a timetable you could have counted on. The 2020 recovery was startlingly fast; the post-2008 recovery took years. You cannot borrow against, or plan around, a recovery whose date is unknowable.

And it cannot tell you which of your companies deserved the fall. That is the one thing a crash hands back to you to determine, by reading. A crash marks everything down together — the strong and the fragile, the solvent and the stretched — because forced sellers sell whatever they hold, not whatever is worst. Sorting the deserved falls from the panic falls is done in the accounts, calmly, one company at a time. The screen will not do it for you.

The same handful of mistakes catch beginner after beginner in a fall. Named in the calm before, they are far easier to resist in the storm.

1. Confusing a paper fall with a realised loss. A price on the screen is not money that has left your account until you sell. The leveraged holder's tragedy is that the margin call forces the paper loss to become real. If you are not forced, the fall is only real if you choose to make it so.

2. Selling to "feel safe," then waiting to "feel safe" to buy back. The feeling of safety returns only after prices have already recovered, so this pattern reliably sells low and buys high. Comfort and good decisions run on opposite schedules in a crash.

3. Believing the size of the fall measures the damage to the business. A 34% index fall does not mean the companies are 34% worse. Forced selling moves price far more than a month of unchanged earnings does. The fall measures the market's plumbing, not your businesses' health.

4. Trying to catch the exact bottom. This is timing wearing the costume of value. The bottom is unmarkable in real time; a steady, scheduled approach captures lower prices without needing to call the low.

5. Adding leverage to "average down" faster. Borrowing more to buy a falling asset is how a survivable dip becomes a wipe-out — it plants you inside the very spiral you should be standing outside of.

Step back and see the whole shape. In a crash, three things are happening at once, and you control exactly one of them. You do not control the trigger. You do not control how far or fast prices fall. You do control how you are funded and how you respond — and it turns out that this one controllable variable does most of the work in deciding your outcome.

That is oddly hopeful. It means surviving crashes is not about being smarter or braver than everyone else in the moment, which is a fair fight you will often lose. It is about arrangements made in the calm: owning what you own outright, or nearly so; keeping money you might need within five years out of the market entirely; running a steady, scheduled investment that does not ask you to judge the level; and writing down, before any fall, what you will and will not do when one comes. The person who does this is not braver than the one who panics. They have simply moved the hard decision out of the heated moment and into a calm hour, onto paper, where fear cannot reach it.

The historical record, for whatever comfort it offers, is that Indian markets have come through every documented crash so far — but the record is worth nothing to the investor who was forced out at the bottom. The recovery only belongs to those still holding when it arrives. Staying in the room is the whole game, and staying in the room is a structural choice, made in advance.