The definition of a bear market is a fall in the equity market of at least 20%. We reached that level a week or two ago, but have bounced back marginally since then. NASDAQ is already firmly in a bear market, but the larger S&P 500 is right at the cusp of one currently.
Under no circumstances do I advise you to liquidate all your stocks at this time. In order to reduce portfolio volatility, you can reduce your equity weight by increasing cash and you can also change your equity sector weights to take into account a possible recession.