Dealers squaring their books ahead of an options expiration may be helping to tamp down swings in U.S. stocks.
Read More Why are US stocks sluggish? Some blame a looming $5 trillion options expirationDealers squaring their books ahead of an options expiration may be helping to tamp down swings in U.S. stocks.
Read More Why are US stocks sluggish? Some blame a looming $5 trillion options expiration