FYI: Investors often raise concerns when the stock market is near an all-time high. The question often is, will it go even higher or will it begin to fall?
As a general rule, it’s not a good idea to sell simply because the market reaches a new high. Historic evidence suggests returns going forward from a market high are typically superior to average market returns.
Regards,
Ted
http://www.etf.com/sections/etf-strategist-corner/when-market-highs-are-matter-perception