What to do in a market crash (as a halal investor)

The problem is always the same

Markets fall 20%. Your portfolio is down £4,000. Every headline says it's going to get worse. Your instinct says: sell everything, wait for the bottom, then buy back in.

This instinct has cost investors more money than almost any other behaviour. And there's an Islamic framework for why resisting it is the right call.

The Islamic perspective: sabr and tawakkul

Sabr (patience) and tawakkul (trust in Allah's provision) aren't just spiritual virtues. In the context of investing, they're practical tools. The halal investor who stays the course during a crash is not being naive. They're acting on the belief that rizq (provision) comes through the process of doing the right thing, consistently, over time.

Panic selling is the opposite of tawakkul. It's trying to control something that isn't in your control (the market), at exactly the moment when you need to trust your process most.

What the data says

The MSCI World index has fallen 20% or more seven times since 1970. In every single case, it recovered and reached new highs. The S&P 500 has a 100% track record of recovery from every bear market in its history.

The investors who got hurt weren't the ones who stayed in. They were the ones who sold at the bottom and missed the recovery. The 10 best trading days in any given decade are often clustered right after the worst days.

Miss those 10 days over 20 years and your returns are roughly cut in half.

The only three things to do when markets crash

1. Do nothing

If you don't need the money for years, the single best action is inaction. Log out of your brokerage app. Stop reading the news. Your portfolio is temporary numbers on a screen. Your plan hasn't changed.

2. Keep your direct debit running

If you invest a fixed amount each month, a crash is when you're buying shares at the cheapest price you'll see for years. The investors who kept buying during Covid (March 2020) and the 2022 tech crash were rewarded within 12 to 18 months. The ones who paused missed the best entry points.

3. Increase contributions if you can

A crash is a sale. Every £100 you invest when ISWD is down 25% is buying the same exposure you'd normally pay £133 for. If you have excess savings sitting in a current account earning nothing, a market correction is the best time to move them into your ISA.

Some long-term investors formalise this with "double DCA": temporarily doubling their usual monthly contribution once the market has fallen 15-20% from its recent high, then returning to their normal amount once that extra amount is deployed. It only works with money already earmarked for investing that you won't need for 5 years or more, never with debt or your emergency fund, and it's entirely optional. See DCA explained for the full guardrails.

What not to do

• Don't sell to "cut your losses": losses only crystallise when you sell
• Don't try to time the bottom: nobody can do this consistently
• Don't switch to "safer" assets at the bottom: you'd be selling low
• Don't check your balance more than once a month

One practical safeguard

The investors most likely to panic are those who invested money they might actually need. If your emergency fund is thin and a crash coincides with a job loss, you might be forced to sell at the worst moment.

Keep 3 to 6 months of living expenses in a halal savings account (Al Rayan, Gatehouse). That buffer means your ISA money is truly long-term money. When you know you won't need it for a decade, staying calm becomes much easier.