Headlines like these need to be put into perspective:

  • “US registers its biggest one-day rise since 1933”.
  • “Global markets fall 12%, their biggest one-day loss since the 1987 flash”.
  • “Markets slashed, Markets surge”.
  • "$187 billion dollars wiped from markets” etc.

These kinds of headlines make us look straight to one indicator – volatility. Why? Because understanding ‘vol’ as traders in these times is vital to your trading and risk management.

First off, we need to understand how the VIX index can tell us the daily implied move.

Without diving too far into statistics and modelling, the daily implied move can be worked out by the square root of time. i.e. the square root of 252 days (the amount of trading days in a year) which is 15.8.

From there, divide the VIX index by 15.8 –so when the VIX maxed out at 82 last week, the implied move in the S&P 500 was +/- 5.2%.

It’s important to acknowledge that volatility does not recognise direction, it can’t tell you that. But clearly rampant vol. is due to mass increases in put buying, which is caused by high levels of market selling. So, for most of the time, the market is likely to fall in high bouts of vol.

This information can give you a base to understand your trading risk and price ranges.

Again, using the idea above, the implied daily range, with a VIX of 82, is 10.4% (+5.2% or -5.2%), which we have seen in intraday trading. Think back to Friday the 13th, the ASX initially fell over 4.7% then rallied back and closed up over 4.4%.

In understanding vol., you understand your trade risk. And in understanding your risk, you can make more informed trading decisions.


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Editors’ Picks

EUR/USD remains below 1.1750 ahead of ECB policy decision

EUR/USD remains below 1.1750 ahead of ECB policy decision

EUR/USD remains on the back foot below 1.1750 in the European session on Thursday. Traders move to the sidelines and refrain from placing any fresh directional bets on the pair ahead of the ECB policy announcements and the US CPI inflation data. 

GBP/USD stays defensive below 1.3400, awaits BoE and US CPI

GBP/USD stays defensive below 1.3400, awaits BoE and US CPI

GBP/USD oscillates in a narrow band below 1.3400 in European trading on Thursday. The pair trades with caution as markets eagerly await the BoE policy verdict and US consumer inflation data for fresh directional impetus. 

Japanese Yen languishes near weekly low against USD; focus remains on BoJ policy update

Japanese Yen languishes near weekly low against USD; focus remains on BoJ policy update

The Japanese Yen trades with a negative bias against the recovering US Dollar for the second straight day, pushing the USD/JPY pair closer to the 156.00 mark or the weekly top. In the absence of any fundamental catalyst, the downtick could be attributed to some repositioning trade ahead of the crucial Bank of Japan policy update on Friday.


Editors’ Picks

EUR/USD remains below 1.1750 ahead of ECB policy decision

EUR/USD remains below 1.1750 ahead of ECB policy decision

EUR/USD remains on the back foot below 1.1750 in the European session on Thursday. Traders move to the sidelines and refrain from placing any fresh directional bets on the pair ahead of the ECB policy announcements and the US CPI inflation data. 

GBP/USD stays defensive below 1.3400, awaits BoE and US CPI

GBP/USD stays defensive below 1.3400, awaits BoE and US CPI

GBP/USD oscillates in a narrow band below 1.3400 in European trading on Thursday. The pair trades with caution as markets eagerly await the BoE policy verdict and US consumer inflation data for fresh directional impetus. 

Gold holds losses below $4,350 ahead of US CPI report

Gold holds losses below $4,350 ahead of US CPI report

Gold struggles to capitalize on the previous day's move higher and holds its pullback below $4,350 in the European session on Thursday. The downtick could be attributed to some profit-taking amid a US Dollar bounce. All eyes now remain on the US CPI inflation data. 

BoE set to resume easing cycle, trimming interest rate to 3.75%

BoE set to resume easing cycle, trimming interest rate to 3.75%

The Bank of England will announce its last monetary policy decision of 2025 on Thursday at 12:00 GMT. The market prices a 25-basis-point rate cut, which would leave the BoE’s Bank Rate at 3.75%.

US CPI data expected to show inflation rose slightly to 3.1%, cooling Fed rate cut bets for January

US CPI data expected to show inflation rose slightly to 3.1%, cooling Fed rate cut bets for January

The US Bureau of Labor Statistics will publish the all-important Consumer Price Index (CPI) data for November on Thursday at 13:30 GMT. The CPI inflation in the US is expected to rise at an annual rate of 3.1% in November

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