Shares of companies that reported third-quarter earnings are acting as a drag on the Dow Jones Industrial Average DJIA, +0.14%, with Travelers Companies Inc.’s stock TRV, -8.03% doing the most damage. The insurer’s stock fell $10.75, or 7.6%, after a profit miss, to shave 73 points off the Dow’s price. The biggest Dow boost was Procter & Gamble Co.’s stock PG, +3.12%, which rose $4.60, or 3.9%, after profit and sales beat expectations, to add about 31 points to the Dow. McDonald’s Corp. shares MCD, -4.45% shed $6.51, or 3.1%, after profit and revenue missed expectations, to lower the Dow by 44 points, and United Technologies Corp.’s stock UTX, +2.44% tacked on $1.38, or 1.0%, after an earnings beat and raised guidance to add 9 points to the Dow. The Dow fell 10 points, or less than 0.1%, in morning trading.