Friday, September 9, 2011

What are CBOE VIX and Baltic Dry index? What they indicate?

CBOE VIX is Chicago Board Options Exchange Market Volatility Index, a popular measure of the implied volatility of S&P 500 index options. It is constructed using the implied volatilities of a wide range of S&P 500 index options. This volatility is meant to be forward looking and is calculated from both calls and puts often referred to as the fear index or the fear gauge, it represents one measure of the market's expectation of stock market volatility over the next 30 day period.
     VIX values greater than 30 are generally associated with a large amount of volatility as a result of investor fear or uncertainty, while values below 20 generally correspond to less stressful, even complacent, times in the markets.

Although the VIX is often called the "fear index", a high VIX is not necessarily bearish for stocks. Instead, the VIX is a measure of market perceived volatility in either direction, including to the upside. In practical terms, when investors anticipate large upside volatility, they are unwilling to sell upside call stock options unless they receive a large premium. Option buyers will be willing to pay such high premiums only if similarly anticipating a large upside move. The resulting aggregate of increases in upside stock option call prices raises the VIX just as does the aggregate growth in downside stock put option premiums that occurs when option buyers and sellers anticipate a likely sharp move to the downside. When the market is believed as likely to soar as to plummet, writing any option that will cost the writer in the event of a sudden large move in either direction may look equally risky. Hence high VIX readings mean investors see significant risk that the market will move sharply, whether downward or upward. The highest VIX readings occur when investors anticipate that huge moves in either direction are likely. Only when investors perceive neither significant downside risk nor significant upside potential if VIX is low.

What Does Baltic Dry Index - BDI Mean?
The Baltic Dry Index (BDI) is a number issued daily by the Londan-based Baltaic Exchange. Not restricted to Baltic Sea countries, the index tracks worldwide international shipping prices of various dry bulk cargoes. The index provides "an assessment of the price of moving the major raw materials by sea. Taking in 26 shipping routes measured on a timecharter and voyage basis, the index covers Handymax, Panamax, and Capesize dry bulk carriers carrying a range of commodities including coal, iron ore and grain."

Every working day, a panel of international ship brokers submits their view of current freight cost on various routes to the Baltic Exchange. The routes are meant to be representative, i.e. large enough in volume to matter for the overall market.

Why many economists read this?
Most directly, the index measures the demand for shipping capacity versus the supply of dry bulk carriers. Changes in the Baltic Dry Index can give investors insight into global supply and demand trends. This change is often considered a leading indicator of future economic growth (if the index is rising) or contraction (index is falling) because the goods shipped are raw, pre-production material, which is typically an area with very low levels of speculation. The index can experience high levels of volatility if global demand increases or drops off suddenly. The Baltic Exchange also operates forward freight agreements (FFA’s) in freight derivatives, which are traded over-the-counter.

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