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Full-Text Articles in Business
Volatility Timing Under Low-Volatility Strategy, Poh Ling Neo, Chyng Wen Tee
Volatility Timing Under Low-Volatility Strategy, Poh Ling Neo, Chyng Wen Tee
Research Collection Lee Kong Chian School Of Business
The authors devise a volatility timing strategy based on statistical tests on the slope of the volatility decile portfolio return profile. Superior performance is obtained, with a 30% increase in Sharpe ratio and an order of magnitude improvement on cumulated wealth. The profitability of the volatility timing strategy can be attributed to holding a diversified portfolio during bear markets, while holding a concentrated growth portfolio during bull markets.
Swaption Portfolio Risk Management: Optimal Model Selection In Different Interest Rate Regimes, Poh Ling Neo, Chyng Wen Tee
Swaption Portfolio Risk Management: Optimal Model Selection In Different Interest Rate Regimes, Poh Ling Neo, Chyng Wen Tee
Research Collection Lee Kong Chian School Of Business
We formulate a risk-based swaption portfolio management framework for profit-and-loss (P&L) explanation. We analyze the implication of using the right volatility backbone in the pricing model from a hedging perspective, and demonstrate the importance of incorporating stability and robustness measure as part of the calibration process for optimal model selection. We also derive a displaced-diffusion stochastic volatility (DDSV) model with a closed-form analytical expression to handle negative interest rates. Finally, we show that our framework is able to identify the optimal pricing model, which leads to superior P&L explanation and hedging performance.