support so you don't >> reporter: if there is no agreement and stock prices plunge, strategist vadim zlotnikov says "buy". >> i do believe that if the reaction is anything more than 5% or 7% to the market, i believe investors should be buying the market at that level. >> reporter: what about treasury bonds? their yields have been hovering at historic lows despite the threat of default, and the loss of the nation's aaa rating. but some strategists see little reaction in treasuries regardless of what happens. >> in the prior periods, when you've had effectively technical defaults-- when the government failed to raise the debt ceiling-- the interest has always been repaid. so, it's really just a timing issue. >> reporter: gold has been the biggest beneficiary of worries about the debt ceiling, surging to a record $1,600 an ounce this week. but analyst george gero does not see a major move, even if an agreement is reached. >> you could go from $1,600 down to $1,500 in gold very quickly if there is a resolution to the debt ceiling and the eurozone. and you could also see gold immediately go up $50