you have 3 options and each option has a basic strategy.
1. hold on to it and hope it rebounds close enough to minimize the loss, then sell.
2. Sell now, absorb the loss (small amount of money anyways) and move on
3. Buy more of both now, and wait for it to go up... then use the dillusional theory of dollar-cost-averaging to make yourself feel better.
REGARDLESS of my three options. STOP investing your money without consulting someone who is educated in trading when involving mergers, IPO's, and acquisitions (ie - why would you buy an IPO when 19 of the last 20 IPO's dropped dramatically within 6 months).
From the sound of it, I bet you bought verizon stock the day the iphone came out for VZW...... THE SMART PEOPLE MADE THEIR MONEY WAY BEFORE THAT DAY AND THE STOCK WENT NO WHERE.