Welcome to our “Did You Know?” thread!

This is your space to share market facts, trading insights, simple statistics, and interesting financial trivia.

Post what surprised you and help the community learn one fact at a time.

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Starting the thread with our first official Did You Know?* fact
More interesting insights coming soon.

Did You Know?

The world’s first stock exchange started in 1602 It was the Amsterdam Stock Exchange, created by the Dutch East India Company, basically the birthplace of modern capitalism.

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The richest investors make most of their money during market crashes.
Historically, the biggest fortunes were built by buying when everyone else is panicking.

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During the COVID-19 crash in March 2020, the S&P 500 triggered four market-wide trading halts in just ten days?
Traders were literally watching the screen turn redder than a stop sign as volatility hit levels not seen since 1987. Wild times.

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The Bombay Stock Exchange traded stocks under a banyan tree in the 1800s, before it ever had a building.

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The facts are so interesting.

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The biggest risk to Indian investors is not the market — it’s taxation.
Short-term trades can lose up to:
30%+ income tax
STT
GST on brokerage

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You don’t actually “own” most of the stocks you buy. Your shares usually sit in the name of a clearing corporation, not yours you only own beneficial rights, not direct legal title.

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The biggest risk to Indian investors is not the market — it’s taxation.

Short-term trades can lose up to:

30%+ income tax

STT

GST on brokerage

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More money is created by private banks than by governments.

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The Bombay Stock Exchange traded stocks under a banyan tree in the 1800s, before it ever had a building.

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The Bombay Stock Exchange (BSE), established in 1875 as “The Native Share & Stock Brokers Association,” is the oldest stock exchange in Asia and the 10th oldest in the world.

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When money enters or exits an ETF, it forces systematic buying or selling of all included stocks.

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Most IPOs are priced to benefit insiders, not retail investors, founders and early investors cash out at inflated valuations
retail usually buys the top.

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A single typo once erased $617 BILLION from the Japanese stock market (a trader entered the wrong order called a “fat-finger” error).

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Whales (large holders) can move entire crypto markets with just a few transactions.

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Stocks often rise in January due to fresh investment inflows and tax-related year-end selling. Similarly, “Sell in May and go away” reflects seasonal investor behavior, though it doesn’t always hold up statistically.

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This is so cool. Thanks for sharing.

High-quality companies (based on things like free cash flow and strong fundamentals) were trading about 40% cheaper than the broader market late in 2025 a rare valuation gap that some investors view as a contrarian opportunity.

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