Core Viewpoint - The article suggests a strategy of shorting the VIX index as a more certain approach to capitalizing on market downturns, rather than directly buying into the S&P 500, especially when the latter's valuation has not fully bottomed out [2][4]. VIX Index Overview - The VIX index measures the expected volatility of the S&P 500 over the next 30 days and is often referred to as the "fear index," serving as a gauge of market sentiment [3]. - Historically, regardless of significant risk events, the VIX index tends to stabilize at an average level after spikes, indicating a potential strategy of shorting the VIX at high levels and buying back at lower levels [3][4]. Strategy Comparison - Shorting the VIX focuses on "shorting market sentiment," requiring only a return to normal market conditions for profit, which is less complex than predicting stock price movements when directly buying the index [4]. - Directly buying the index requires a low valuation entry point, but markets may not wait for a complete downturn before rebounding, leading to missed opportunities [5]. Backtesting Results - The article presents backtesting results for various shorting strategies based on VIX levels, indicating that shorting above 30 and covering below 12 yields significant returns, albeit with long holding periods that can reduce annualized returns [12][11]. - A more relaxed strategy of shorting above 30 and covering below 20 shows quicker recovery opportunities, with some trades yielding 30%-40% returns in a short time frame [13][14]. Risk and Considerations - The strategy's risks include the potential for infinite losses if the VIX spikes unexpectedly, as it is not tied to a tangible asset like stocks [22]. - Costs associated with shorting the VIX through derivatives can introduce discrepancies in expected outcomes, particularly during volatile market conditions [22]. Summary of Strategy Characteristics - The strategy is characterized by strong certainty, relying on the recovery of market sentiment over time, with the potential for significant short-term gains [23]. - It is advisable to prepare for short-term losses and to exit positions when the VIX stabilizes around 25, as holding beyond this point may not be cost-effective [23].