Markets· 8 min read· Updated April 2026

What is the stock market — and what actually happens when it crashes?

Markets fell 38% in 40 days in 2020. Then recovered to new highs. Here is what actually drives prices — and what it means for your investments.

Key takeaways
A stock is ownership in a real company — not just a number on a screen
Prices move when companies do better or worse than people expected
FIIs (foreign investors) and DIIs (domestic funds) are the two forces that move markets daily
Every major crash in history has been followed by full recovery and new highs
Staying invested through crashes is almost always better than trying to exit and re-enter
40
days to fall 38%
Jan–Mar 2020 crash
18
months to recover
Nifty back at highs
7,610
Nifty low (Mar 2020)
from 12,300 peak
18,000+
Nifty by Oct 2021
70% above pre-COVID
👨‍💼
RajeshAge 42·IT professional, Hyderabad
"

I panicked and sold everything in March 2020. I've been trying to figure out when to re-enter ever since.

Rajesh sold his ₹8 lakh mutual fund portfolio in March 2020 when it fell to ₹5.5 lakh, locking in a ₹2.5 lakh loss. By December 2021, that same portfolio would have been worth ₹14 lakh.

A stock is ownership — not just a number

When you buy one share of Infosys, you own a tiny but real fraction of a company with 335,000 employees, offices across 50 countries, and ₹30,000+ crore in annual profit. You own a real business. If Infosys wins a massive new contract next year, your ownership stake is worth more. If it loses clients, less. The stock price is simply the market's current estimate of what that ownership is worth today — updated every second by thousands of buyers and sellers.
💡
Why 'great results, stock falls' happens
Prices move when companies do better or WORSE than people expected — not just when they make money. Example: Infosys reports 18% revenue growth. Sounds great. But analysts expected 22%. The stock falls 4%. The market had already 'priced in' 22% growth. The actual 18% is a disappointment relative to expectations. This is why prices can fall on good news and rise on bad news.
Who moves the market every day
ParticipantWho they areTypical impact
Retail investorsIndividual people (you and me) via Zerodha, Groww etc.High in numbers, lower per-person volume
DIIsMutual funds, LIC, EPFO investing on behalf of Indian savers₹10,000–₹20,000 Cr/month, steady buyer
FIIsGlobal funds from US, Europe, SingaporeCan move ₹5,000–₹15,000 Cr in a single day — biggest short-term mover

Why FIIs have such outsized impact

Foreign Institutional Investors hold roughly 20–25% of India's total listed market. When the US Federal Reserve raises interest rates, global funds reallocate — moving money from 'risky' emerging markets like India into 'safe' US bonds. This reallocation is mechanical — it has nothing to do with whether Indian companies are performing well. Yet when FIIs sell ₹50,000 crore in a month, the Nifty can fall 10–15% regardless of underlying fundamentals.
Every crash — and what came after
2000–01Dot-com crash

Nifty fell ~55%. Recovered fully by 2004.

2008–09Global financial crisis

Nifty fell from 6,300 to 2,250 (−64%). Recovered to new highs by 2010.

2015–16China-led global sell-off

Nifty fell ~25%. Recovered within 18 months.

2020COVID crash

Nifty fell 38% in 40 days. Fully recovered by January 2021. Hit 18,000 by October 2021.

2022Rate hike correction

Nifty fell ~15%. Recovered and hit new highs by late 2023.

⚠️
The cost of panic selling
₹10 lakh invested in Nifty 50 on Jan 1, 2020: • If you stayed invested through COVID crash: ₹22.5 lakh by Dec 2023 • If you sold in March 2020 and waited until 'it felt safe' to re-enter (say, Dec 2020): ₹17.2 lakh The cost of panic: ₹5.3 lakh. The recovery happened in months. Most people who sold missed most of it.
Staying invested vs. trying to time
Stay invested (SIP continues)
Buy more units when prices are low
Never miss the recovery rally
No stress about 'right time' to re-enter
Historically the better outcome in 90%+ of cases
Exit during crash, wait to re-enter
Lock in losses at the worst time
Miss best trading days (happen during/after crashes)
Psychological burden of picking re-entry point
Research shows most investors re-enter too late
Educational content only. Numbers shown are illustrative — actual returns vary. This is not investment advice. Consult a SEBI-registered financial advisor before investing.

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