Volatility Drag Exposed

Finance Published: February 12, 2013
EEMEFA

The Hidden Cost of Volatility Drag

That said, we've all been there - stuck in a trading loop, trying to outmaneuver the market's short-term whims. But what if I told you that your average daily returns might not be as predictable as you think? It turns out that key characteristics of financial markets commonly treated as constant should indeed be viewed as changing each day.

The Case for Daily Breaks

In this paper, we'll focus on showing in detail how the process driving trade direction is subject to daily breaks. A 10-Year Backtest Reveals... Our analysis reveals that there are periodic, specifically daily, structural breaks in the trade direction time series process, a fact with implications for several key intra-day characteristics of markets.

Why Most Investors Miss This Pattern

What's interesting is that this pattern doesn't appear to be due to any macroeconomic or market-wide events. Instead, it arises from the natural and widespread daily periodicity in the timing of investment decisions. Long memory behaviour in other financial variables has at-tracted a lot of attention since being noted in economic variables by Greene and Fielitz (1977), especially in returns and its powers.

A 10-Year Backtest Reveals... On the flip side, most investors might be surprised to learn that their average daily returns over the past decade are actually influenced by these daily breaks. It turns out that market conditions change every day, making it impossible to rely solely on long horizon predictability models.

Portfolio Implications

What does this mean for portfolios? We'll examine how changes in trade direction process can impact different asset classes. Stocks with high short-term volatility, such as those in the C and EEM indices, are particularly susceptible to these daily breaks. On the other hand, assets like GS and EFA tend to exhibit less volatility.

Risks and Opportunities Separate

While daily breaks can be detrimental to some portfolios, they also present opportunities for diversification and risk management. By incorporating these daily changes into your investment strategy, you may be able to reduce overall portfolio risk while still benefiting from the predictability of trade direction.

Actionable Conclusion

In conclusion, our analysis suggests that market conditions change every day, leading to significant differences in intra-day characteristics of markets. By acknowledging this reality and incorporating it into your investment strategy, you can potentially improve your chances of success in the markets.