If you are a stock investor, consider strategies such as placing stop-loss orders to reduce losses in a volatile market, subscribing to services that email you company specific news as it happens, and setting up loss review trigger points to review your investment.
Kevin Daly of Goldman Sachs thinks there are modest grounds for optimism: the sectors that shrank most this time, such as oil and gas, are notoriously volatile, whereas those that grew, such as services, may be seeing sustainable improvement.