BPVIX Hits Highest Level in 7 Years, So Let’s See the Skew and Term Structure for Listed Options

On Monday the CBOE/CME FX British Pound Volatility Index (BPVIX) closed at 22.59, its highest daily close since March 2009, and the BPVIX Index has risen 161.8% so far this year (through June 6). A number of news articles have noted that the implied volatility for British Pound has risen during the past month because of concern about the upcoming June 23 Brexit referendum.

1 Vola indexes Three

Recent headlines for news stories included (1) “Pound Falls, Volatility Jumps as Polls Show Momentum for Brexit” (Bloomberg on June 5), and (2) “Sterling volatility heads higher as Leave camp builds lead” (Financial Times on June 6). In addition, Timothy Edwards posted a VIX Views blog on “Divining Brexit.”

The BPVIX Index is not tradable and there are no BPVIX listed futures or options. As the vote on Brexit approaches, traders and investors could keep an eye on the volatility skew and term structure for key listed options.

VOLATILITY SKEW FOR KEY OPTIONS

Listed options are available on the CurrencyShares British Pound Sterling Trust (FXB). The FXB delivers exposure to changes in value of the British pound relative to the US dollar. At the end of last month the open interest for the FXB ETF options was 30,874 for the FXB put options, and 8,649 for FXB call options. The next chart below shows the volatility skew for the FXB options at the close on June 6 (when the FXB closed at 141.43). Note that the implied volatility for the out-of-the-money (OTM) FXB put options generally is much higher than the implied volatility for the OTM FXB call options, indicating high investor fear about possible future downside moves of the FXB.

2 FXB Skew

The two charts below show Bloomberg estimates of 30-trading-day impled volatility for five option classes. Note that for all the options classes (except VIX) in the charts below, the implied volatility at 90% moneyness is higher than the at-the-money (ATM) implied volatility, while the implied volatility for VIX at 110% moneyness is higher than the VIX ATM implied volatility.

4 - Skew US

A valuable tool to see long-term trends in SPX skew and investors’ concerns about catastrophic risk is the CBOE SKEW Index at www.cboe.com/SKEW.

WEEKLY INDEX OPTIONS AND TERM STRUCTURE

CBOE offers SPX Weeklys that expire on Wednesdays and Fridays, and VIX Weeklys that expire on Wednesdays. Weeklys options can provide opportunities for investors to implement more targeted buying, selling or spreading strategies. Weeklys options can help investors efficiently take advantage of market events, such as earnings, government reports, voter elections and referenda, and Fed announcements.

A May 29 Business Insider post noted that Goldman Sachs options analysts issued a report that considers the messages volatility term structure is sending. The Business Insider post stated that —

Looking at the S&P 500 implied volatility term structure, a downward hook, or “kink” as the Goldman report says, is noticed just before the June 14-15 Fed meeting. Looking at term structure, markets are pricing in volatility around the June 23rd Brexit vote, but not necessarily the June 14-15 Fed meeting nor the U.S. Presidential election. “Elevated event risk creates “kinks” in term structures,” Gregory and Timcenko wrote. “The term structure of implied volatility is typically smooth and upward sloping. Excess hedging demand around specific expirations creates kinks in the term structure and provides clues as to how event risk is being priced.”

Below are CBOE-created term structure charts with Bloomberg estimates for select dates for OTM SPX puts and VIX calls at certain strike prices. With the Brexit vote scheduled for Thursday, June 23, it will be interesting to see how implied volatility moves around that date for the key index options. You can see the term structure for many more SPX standard expiration dates at www.cboe.com/VIXTerm.

5 - Term structure

The posts on this blog are opinions, not advice.
Please read our disclaimer for Indices.

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