You are bearish on Twitter share price. In other words, you believe that TWTR will fall significantly in coming weeks.

What option position could you enter to profit from a correct bearish prediction?

Select as many answers as you think appropriate.

The S&P/ASX200 market index is currently 6800. You predict that the market will fall substantially in coming weeks and are prepared to speculate on this prediction.

You enter 30 long put options written on the S&P/ASX200 index. The options have a strike price of 6450.

On the expiry date of these options, the S&P/ASX200 index sits at 6200.

What is the gross payoff (in dollars) on your index option speculation?

Note that S&P/ASX200 index

options have a standard multiplier of $A10.  Do

A few weeks ago, you realised that you were

exposed to movements in the price of oil. At that time, you hedged this exposure by entering

a long put option written on oil.

The put option had a strike price of $90

per barrel. At the time of the option expiry, the spot price of oil is $85 per

barrel.

Hedging with options gives you a degree of

flexibility. What is the rational decision to make at expiry?

You manage a share portfolio currently worth

$30m Australian dollars. The beta of this portfolio is 1.15.

Index put options trade on the S&P/ASX200

index with a strike price of 7200.

Calculate the

number of index put options required to fully hedge this share portfolio.

Note that S&P/ASX200 index

options have a standard multiplier of $A10. Round your answer to the

nearest whole number.

Several months from now, you will make a large sale of copper. As such, you are exposed to movements in the price of copper between now and then.

You will hedge this exposure using an option

contract.

Which option position will best hedge you

against unfavourable movements in copper price?

The spot exchange rate between Australian

dollars (AUD) and US Dollars (USD) is AUD 1.00 = USD 0.72. You believe that in

4 weeks time, the exchange rate will be AUD 1.00  = USD 0.75. Options are currently available

with a strike price of AUD 1.00 = USD 0.725.

Which option position is best suited to profit if

your speculation proves to be correct?

De acuerdo con la clasificación general, relacione los tipos de productos para reducción de tamaño con los ejemplos de equipos dados.

Se ha evaluado la cinética del proceso de secado del anacardo mediante dos tipos de secadores solares de radiación directa sobre las bandejas del producto. Los ensayos se han realizado con anacardo en rodajas de 1 y 2 cm de espesor, distribuidos uniformemente en las bandejas. A intervalos de tiempo similares se ha registrado el peso de las bandejas hasta un peso casi constante. En estos ensayos experimentales de secado, el tiempo final alcanzado, donde el peso casi ya no varía es: