It is not surprising that individuals are sitting on the sidelines, given the sharp moves in the market. Yesterday, for instance, all three major American indexes fell immediately after the opening bell, and at one point the Dow Jones industrial average was down 212 points. By noon, stocks were on the rebound and the indexes were briefly in positive territory, then declined. The Nasdaq finished at 2,544.89, down 11.60, or 0.4 percent.
Does it suggest investors are not actively engaged in trading? Or they are watching for chances to invest?
Yes- it's an analogy to having taken themselves out of the game (for the moment)- they haven't left the stadium, so they're still there in case they feel the urge to jump back into the action.