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56 votes
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What did John Templeton mean when he said that the four most dangerous words in investing are: ‘this time it’s different'?

Essentially, he means "one ignores history at their own peril". We often hear people arguing that "the old rules no longer apply". Whether it be to valuations, borrowing, or any of the other common ...
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33 votes

What did John Templeton mean when he said that the four most dangerous words in investing are: ‘this time it’s different'?

This refers to the faulty idea that the stock market will behave differently than it has in the past. For example, in the late 1990s, internet stocks rose to ridiculous heights in price, to be ...
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25 votes

Why do people who sell something on a marketplace ever allow the price to go down?

Because what if nobody wants to buy at that price any more? When the buy price and the sale price meet, a transaction happens, and those prices are removed from the market. That means there's always a ...
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16 votes

What did John Templeton mean when he said that the four most dangerous words in investing are: ‘this time it’s different'?

It's a statement that seems to be true about our tendency to believe we won't make the same mistake twice, even though we do, and that somehow what's occurring in the present is completely different, ...
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14 votes

Why do people who sell something on a marketplace ever allow the price to go down?

Just because one buyer was willing to pay $X doesn't necessarily mean other buyers will as well. Maybe that first buyer isn't interested in buying any more since he already has what he wants. If you ...
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11 votes

What did John Templeton mean when he said that the four most dangerous words in investing are: ‘this time it’s different'?

There's an elephant in the room that no one is addressing: Suckers. Usually when there's a bubble, many people are fully aware that its a bubble. "This time its different" is a sales pitch to the ...
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11 votes
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What do single quotation marks in the price of futures mean?

Cash bonds and futures based on U.S. Treasury securities do not trade in decimal format but in full percentage points, plus fractions of a 1/32 of par value. (Source: Calculating U.S. Treasury ...
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6 votes

"Break even" price on call options is lower than current stock price?

If those are the respective real time quotes then yes, you could do a Discount Arbitrage (buy call, exercise call to acquire stock, and sell stock. To avoid slippage, you'd buy a Synthetic Put via a ...
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6 votes
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What are the risks of placing limit orders on illiquid securities without knowing the Level 2 quotes?

A buy limit order is an order to purchase a security at or below a specified price. That guarantees that you pay no more than your limit price. The only downside risk that you face is that your ...
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6 votes
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Why do market makers sometimes quote absurd bid and ask prices rather than remove their quotes?

These "absurd bid and ask prices" are called "stub quotes". A stub quote is an offer to buy or sell a stock at a price so far away from the prevailing market that it is not ...
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5 votes
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How does "Losers Average Losers" relate to dollar-cost averaging?

An investor with a long term outlook who believes his fundamental analysis is correct will systematically dollar cost average because at the onset, he has 30-40 years until retirement. In addition, ...
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5 votes

How does the Robinhood app or any website know the price of Bitcoin at any given time?

They use the price that people last bought or sold at themselves, across multiple sources. Usually a site will tell you where they get their reference prices from. Bitcoin's price is not algorithmic, ...
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4 votes

What did John Templeton mean when he said that the four most dangerous words in investing are: ‘this time it’s different'?

A brief review of the financial collapses in the last 30 years will show that the following events take place in a fairly typical cycle: An innovation or significant change in the inputs affecting ...
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4 votes
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What is the fair value of a stock given the bid and ask prices? Is there such a relationship?

None of the above. The fair value is a term used to describe an analytical result of projecting the company's future dividends and profits into a present value. Such estimates are published by the ...
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4 votes
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Why is the stock change calculated from the last day close instead of the current day open?

the stock change is intended to be a measure of how much the value of a stock changes over the course of a day. No - it indicates the change from one day to the next (or more generally from one ...
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4 votes

Why do people who sell something on a marketplace ever allow the price to go down?

Pricing is a complex art, and there are a lot of non-intuitive aspects to it. Here's a real-world example that might help (examples use normal products, but the concepts are generally the same for ...
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  • 1,678
3 votes

How does "Losers Average Losers" relate to dollar-cost averaging?

"if you keep doubling-down on positions that are losing, eventually you'll blow all of your money on something that never recovers" I partially disagree. If a big company, one that is not in trouble, ...
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3 votes
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Can a VAT registered company produce a quote with a mix of VAT products and NON VAT installation?

I wonder if this a Tax fiddle? Doubtful. I used to employ 3rd parties who were not VAT registered in the UK to undertake work for my company (which was VAT registered). The invoice from my company to ...
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3 votes
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How is a stock's opening and closing price determined if no shares were traded?

The rules regarding the types of trade(s) that constitute the data points of Open, High, Low, Close and Volume are well defined. For securities listed on NYSE, NYSE Arca, NYSE American or Cboe, they ...
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2 votes
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How to calculate Mid Prices from Bid and Ask?

It is... A reference price calculated by taking the average of the current quoted bid and ask prices. As the average between the high and low quoted prices, the mid-price expresses a general market ...
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2 votes

Does Edmunds get a kick-back from the use of Edmunds Price Promise?

Yes, Edmunds gets money from the dealerships in this program. According to this USA Today article from 2013, dealers pay Edmunds a monthly fee to participate in the program. This contrasts with ...
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2 votes

What is the fair value of a stock given the bid and ask prices? Is there such a relationship?

Fair value can mean many different things depending on the context. And it has nothing to do with the price at which your market order would be executed. For example if you buy market, you could get ...
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  • 1,682
2 votes

What is the difference between quote data, trade data and pricing data in stock market?

A current quote has the bid and ask price, the price of the last trade, the size of the market at the bid and the ask, and net change. A Summary Quotes provides a more comprehensive view. It usually ...
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2 votes
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How is the end-of-day NAV of a global mutual fund calculated, and is it consistent?

You are correct that differences in trading hours are a consideration in pricing mutual funds. Another example would is holidays in a foreign country which are not holidays in the US. In this case, ...
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2 votes

Is the current stock price the last bid price or the last ask price, or what?

The answer by Chris in your link explains it. Just to repeat: The current price is the price of the last trade The last trade occurred at the bid or ask price The buyer paid the ask price or the ...
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2 votes

Why do market makers sometimes quote absurd bid and ask prices rather than remove their quotes?

First, MM's are bound to provide quotes within specific parameters by contract. ONE of those parameters is time (95% of the time, i.e.). Second, this could be just a bet (maybe someone sells market - ...
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  • 11.4k
2 votes

Do market makers (equities, equity options) continually adjust bid / ask quotes or only adjust after they receive orders?

The market maker controls the bid and ask price only if the security is illiquid and there are no orders on the order book within the MM's bid/ask range. Any trader who places an order at a better ...
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  • 73.6k
2 votes

Why do people who sell something on a marketplace ever allow the price to go down?

If a seller shouldn't offer to sell at a price lower than the highest price anyone has ever paid, doesn't it follow that a buyer shouldn't offer to buy at a price higher than the lowest price anyone ...
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2 votes

How does the Robinhood app or any website know the price of Bitcoin at any given time?

For example, CNBC uses Coin Metrics as their data provider, which sources their data from Over 30 of the world’s leading spot and derivatives crypto exchanges The prices are based on the latest ...
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